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From aquatic biota to autogenous N-doping biochar—using a highly efficient nonradical dominant process for sulfamethoxazole degradation

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Journal of Cleaner Production 2022年 373卷

作者： Wu Xia Biao Song Huan Yi Eydhah Almatrafi Yang Yang Yukui Fu Xiuqing Huo Fanzhi Qin Ling Xiang Yuxi Zeng Guangming Zeng Chengyun Zhou College of Environmental Science and Engineering Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University) Ministry of Education Changsha 410082 PR China Center of Research Excellence in Renewable Energy and Power Systems Center of Excellence in Desalination Technology Department of Mechanical Engineering Faculty of Engineering-Rabigh King Abdulaziz University Jeddah 21589 Saudi Arabia Department of Chemical and Materials Engineering University of Alberta Edmonton Alberta T6G 1H9 Canada

Biochar has been considered as a promising environmental-friendly catalyst to activate peroxydisulfate (PDS) for contaminant degradation. In this study, a series of autogenous N-rich biochar derived from Spirulina were prepared by K 2 CO 3 impregnation (NPSBs). The pyrolysis temperature and the rational design of morphology by K 2 CO 3 had a significant influence on the performance of NPSBs to activate PDS. The NPSB-700 was capable of degrading 97.59% sulfamethoxazole (SMX) within 40 min because of the high surface area, high defect degree, and good electrical conductivity . The accelerated electron transfer and the generation of 1 O 2 were elucidated to be the dominant pathways for SMX degradation. It has been proven that this is a process of reducing toxicity. Furthermore, NPSB-700 also showed excellent degradation performance to various pollutants. This study provides a facile modification strategy of Spirulina -based catalysts and deepens the comprehension of persulfate activation via nonradical oxidation .

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Insight into the effect of pyrolysis temperature on photoreactivity of biochar-derived dissolved organic matter: Impacts of aromaticity and carbonyl groups

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The Science of the total environment 2023年 871卷 162048页

作者： Hanzhuo Luo Eydhah Almatrafi Wenjun Wang Yang Yang Danlian Huang Weiping Xiong Min Cheng Chengyun Zhou Yin Zhou Qing Lin Guoge Fang Guangming Zeng Chen Zhang College of Environmental Science and Engineering Hunan University and Key Laboratory of Environmental Biology and Pollution Control Hunan University Ministry of Education Changsha Hunan 410082 PR China Center of Research Excellence in Renewable Energy and Power Systems Center of Excellence in Desalination Technology Department of Mechanical Engineering Faculty of Engineering-Rabigh King Abdulaziz University Jeddah 21589 Saudi Arabia. School of Resources and Environment Hunan University of Technology and Business Changsha 410205 China. Department of Chemical and Materials Engineering University of Alberta Edmonton Alberta T6G 1H9 Canada. College of Environmental Science and Engineering Hunan University and Key Laboratory of Environmental Biology and Pollution Control Hunan University Ministry of Education Changsha Hunan 410082 PR China. Center of Research Excellence in Renewable Energy and Power Systems Center of Excellence in Desalination Technology Department of Mechanical Engineering Faculty of Engineering-Rabigh King Abdulaziz University Jeddah 21589 Saudi Arabia. Electronic address: zgming@***. College of Environmental Science and Engineering Hunan University and Key Laboratory of Environmental Biology and Pollution Control Hunan University Ministry of Education Changsha Hunan 410082 PR China. Electronic address: zhangchen@***.

Practical application of biochar may result in more biochar-derived dissolved organic matter (denoted as BDOM) inevitably release into surface waters by infiltration and surface runoff. The photochemical reaction of BDOM has gained intense attention, which played a key role in the fate of organic contaminants. However, the relationships between specific characteristics of BDOM and its photoreactivity are still uncertain. In this study, the characteristics of BDOM pyrolyzed from rice husk derived biochar at different temperature (from 400 °C to 700 °C) and their effect on the photodegradation of oxytetracycline (OTC) were carefully investigated. The C NMR and EEM results indicated the dominated component of BDOM was gradually turned from humic acid like substances with low aromaticity to high aromaticity with abundant oxygen-containing functional groups as pyrolytic temperature increases. Experimental results showed that the apparent rate constants (k) of BDOM700 (4.53 × 10 min) for OTC photodegradation was approximately one order of magnitude higher than BDOM400 (4.52 × 10 min), which was closely correlated with their aromaticity (R = 0.944). It was found that BDOM* rather than O played the major role in BDOM mediated photodegradation of OTC (80.13 % vs 14.34 %), and the carbonyl-containing group was identified as the main BDOM* precursor by NaBH reduction experiment. This work highlighted both aromaticity and carbonyl group contents were critical indicators for assessing the potential to generate BDOM* and corresponding photoreactivity.

关键词： Dissolved organic matter Electron transfer Photochemistry Pyrolysis temperature Triplet state

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The production and characterization of penicillin G acylase from Bacillus Thuringiensis BGSC BD1 wild type

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AIP Conference Proceedings 2024年第1期3080卷

作者： Rizky Aulia Prasasti Dewi Erma Widyasti Deden Rosid Waltam Edi Wahjono Dianursanti Nuur Faridatun Hasanah Siswa Setyahadi Nurul Apsari Aji Dewi Nandyawati Eko Santoso Dini Achnafani Ayi Mufti Molina Indah Pradiv Kharis Yohan Abidin Department of Chemical Engineering Faculty of Engineering Universitas Indonesia Kampus UI Depok West Java 16424 Indonesia Bioindustrial Laboratory LAPTIAB National Research and Innovation Agency (BRIN) Gd. 611 KST BJHABIBIE PUSPIPTEK Street Muncul Setu Serpong Banten 15314 Indonesia Research Center for Applied Microbiology ORHL National Research and Innovation Agency (BRIN) Jl. Raya Jakarta-Bogor Km 46 KST Soekarno Bogor 16911 West Java Indonesia Research Center for Industrial Process and Manufacturing Technology OREM National Research and Innovation Agency (BRIN) KST BJ Habibie PUSPIPTEK Street Muncul Setu Serpong Banten 15314 Indonesia Research Center for Agroindustry ORPP National Research and Innovation Agency (BRIN) LAPTIAB KST BJ HABIBIE PUSPIPTEK Street Muncul Setu Serpong Banten 15314 Indonesia Research Center for Medicine Raw Material and Traditional Medicine ORK National Research and Innovation Agency (BRIN) LAPTIAB KST BJ Habibie PUSPIPTEK Street Muncul Setu Serpong Banten 15314 Indonesia Research Center for Biomass and Bioproduct ORHL National Research and Innovation Agency (BRIN) Jl. Raya Jakarta-Bogor Km 46 KST Soekarno Bogor 16911 West Java Indonesia

Penicillin G Acylase (PGA) is the responsible enzyme for hydrolysis of β-lactams antibiotics. It became important since the majority process to produce these antibiotics turn into enzymatic. One which is amoxicillin. In this study, a wild type of Bacillus thuringiensis BGSC BD1 among three other isolates from Bioindustrial Lab, LAPTIAB, BRIN Culture Collection are selected as the best producer of the enzyme. The PGA production in LB media for five trials resulting the stable PGA activity of about 3 U/ml with harvesting time at 20 hours of fermentation. The characterization of the enzyme showed optimum activity in a pH range of 7 to 8 with maximum temperature up to 60 °C. The SDS-PAGE result showed two bands with molecular weights around 26 and41 kDa that represent the α and β units of PGA.

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Ratiometric Afterglow Luminescent Imaging of Matrix Metalloproteinase-2 Activity via an Energy Diversion process

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Angewandte Chemie 2024年第26期136卷

作者： Weijing Huang Dr. Wenhui Zeng Zheng Huang Dr. Daqing Fang Prof. Hong Liu Prof. Min Feng Prof. Liang Mao Prof. Deju Ye State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry and Chemical Engineering Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University Nanjing 210023 China These authors contributed equally. State Key Laboratory of Drug Research and Key Laboratory of Receptor Research Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 201203 China Department of General Surgery Nanjing Drum Tower Hospital the Affiliated Hospital of Nanjing University Medical School Nanjing 210008 China State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Chemistry and Biomedicine Innovation Center Nanjing University Nanjing 210023 China

Ratiometric afterglow luminescent (AGL) probes are attractive for in vivo imaging due to their high sensitivity and signal self-calibration function. However, there are currently few ratiometric AGL probes available for imaging enzymatic activity in living organisms. Here, we present an energy diversion (ED) strategy that enables the design of an enzyme-activated ratiometric AGL probe (RAG-RGD) for in vivo afterglow imaging. The ED process provides RAG-RGD with a radiative transition for an ‘always on’ 520-nm AGL signal (AGL 520 ) and a cascade three-step energy transfer (ET) process for an ‘off-on’ 710-nm AGL signal (AGL 710 ) in response to a specific enzyme. Using matrix metalloproteinase-2 (MMP-2) as an example, RAG-RGD shows a significant ~11-fold increase in AGL 710 /AGL 520 toward MMP-2. This can sensitively detect U87MG brain tumors through ratiometric afterglow imaging of MMP-2 activity, with a high signal-to-background ratio and deep imaging depth. Furthermore, by utilizing the self-calibration effect of ratiometric imaging, RAG-RGD demonstrated a strong negative correlation between the AGL 710 /AGL 520 value and the size of orthotopic U87MG tumor, enabling accurate monitoring of orthotopic glioma growth in vivo. This ED process may be applied for the design of other enzyme-activated ratiometric afterglow probes for sensitive afterglow imaging.

关键词： Afterglow luminescence ratiometric imaging activatable probes energy diversion MMP-2

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Partial pore blockage and polymer chain rigidification phenomena in PEO/ZIF-8 mixed matrix membranes synthesized by in situ polymerization

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Chinese Journal of chemical engineering 2018年第3期26卷 501-508页

作者： Xiaoli Ding Xu Li Hongyong Zhao Ran Wang Runqing Zhao Hong Li Yuzhong Zhang State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes Tianjin Polytechnic University Tianjin Key Laboratory of Hollow Fiber Membrane Materials and Processes Tianjin Polytechnic University Institute of Separation Material and Process Control School of Material Science and Engineering Tianjin Polytechnic University School of Environmental and Chemical Engineering Tianjin Polytechnic University

Nanostructured zeolitic imidazolate frameworks(ZIF-8) was incorporated into the mixture of poly(ethylene glycol) methyl ether acrylate(PEGMEA) and pentaerythritol triacrylate(PETA) to synthesize mixed matrix membranes(MMMs) by in situ polymerization for CO_2/CH_4 separation. The solvent-free polymerization between PEGMEA and PETA was induced by UV light with 1-hydroxylcyclohexyl phenyl ketone as initiator. The chemical structural characterization was performed by Fourier transform infrared spectroscopy. The morphology was characterized by scanning electron microscope. The average chain-to-chain distance of the polymer chains in MMMs was investigated by X-ray diffraction. The thermal property was evaluated by differential scanning calorimetry. The CH_4 and CO_2 gas transport properties of MMMs are reported. The relationship between gas permeation–separation performances or physical properties and ZIF-8 loading is also discussed. However, the permeation–separation performance was not improved in Robeson upper bound plot compared with original polymer membrane as predicted. The significant partial pore blockage and polymer rigidification effect around the ZIFs confirmed by the increase in glass temperature and the decrease in the d-spacing, were mainly responsible for the failure in performance improvement, which offset the high diffusion induced by porous ZIF-8.

关键词： Mixed matrix membrane Partial pore blockage Polymer chain rigidification CO2 separation

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Risk assessment and classification of reusability of backwash water from drinking water treatment plants

Energy & Environmental Sustainability

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Energy & Environmental Sustainability 2025年第3期1卷

作者： Tian-Yang Zhang Xin-Li Huang Zhen-Ning Luo Yu-Chunxi Zheng Yun-Qiao Zeng Yu-Lin Tang Chen-Yan Hu Jun-Juan Qian Kun Yang Mohamed Gamal El-Din Bin Xu State Key Laboratory of Pollution Control and Resource Reuse Key Laboratory of Urban Water Supply Water Saving and Water Environment Governance in the Yangtze River Delta of Ministry of Water Resources College of Environmental Science and Engineering Tongji University Shanghai 200092 PR China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092 PR China College of Environmental and Chemical Engineering Shanghai University of Electric Power Shanghai 200090 PR China Shanghai Chengtou Water (Group) Co. Ltd Water Production Company Shanghai 201906 PR China Shanghai National Engineering Research Center of Urban Water Resources Co. Ltd. Shanghai 200082 PR China Department of Civil and Environmental Engineering University of Alberta Edmonton Alberta T6G 1H9 Canada

Water shortages are a substantial challenge for human development worldwide. Drinking water treatment plants consume water resources during the water treatment process, producing wastewater with high potential for reuse. This study investigated the variations in water quality characteristics of backwash water from a water treatment plant using sand and activated carbon filters and conducted a risk assessment for its direct reuse. Significant differences in turbidity, dissolved organic carbon, total colony count, and aluminum and manganese concentrations were identified during the initial, intermediate, and final stages of backwashing using the two filter types. Compared to the raw intake water, backwash water from the sand filter had higher microbial risk when reused. Although the activated carbon filter was the main site for microbial activity, the biological and chemical risks were low in the reused backwash water from this filter type. To achieve low-risk reuse of backwash water, this study developed a new risk assessment method based on water quality fluctuations between raw and backwash water, enabling the classification of backwash water for reuse. This method calculated the changes in water quality indicators of raw and reused backwash water after mixing and compared them with historical water quality fluctuations in raw water. A 90 % assurance rate that the mixed-water quality met natural historical variations served as the criterion for determining risk-free reuse. According to this criterion, the reuse rates of backwash water from the sand filter at the initial and intermediate stages were <20 %, while those of backwash water from the sand filter at the final stage and from the carbon filter at all stages could reach 100 % (Considering the one-factor limitation, the number of colonies was taken as an example). This evaluation method can help drinking water plants to quickly assess the risk of directly reusing backwash water, achieving maximum safety wit

关键词： Sand filtration Backwash water Reuse Risk assessment Drinking water treatment plants

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Connected three-dimensional polyhedral frames for programmable liquid processing

Nature Chemical Engineering

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Nature chemical engineering 2024年 472-482页

作者： Yiyuan Zhang Liqiu Wang Zhandong Huang Kai Cui Kun Guo Jinjia Wei Feifei Qin Jan Carmeliet Hongzhou Wang Zheren Cai Yanlin Song Xiaobing Cai Junfeng Xiao Jun Yang Department of Mechanical Engineering The Hong Kong Polytechnic University Hong Kong China School of Chemical Engineering and Technology Xi’an Jiaotong University Xi’an China Institute of Extreme Mechanics Northwestern Polytechnical University Xi’an China Chair of Building Physics Department of Mechanical and Process Engineering ETH Zürich (Swiss Federal Institute of Technology in Zürich) Zurich Switzerland Jiangxi Institute of Mechanical Science Nanchang China Key Laboratory of Green Printing Institute of Chemistry Chinese Academy of Sciences (ICCAS) Beijing Engineering Research Center of Nanomaterials for Green Printing Technology Beijing National Laboratory for Molecular Sciences (BNLMS) Beijing China State Key Laboratory for Strength and Vibration of Mechanical Structures School of Aerospace Engineering Xi’an Jiaotong University Xi’an China Shenzhen Institute for Advanced Study University of Electronic Science and Technology of China Shenzhen China

Human civilization relies heavily on the ability to precisely process liquids. Switching between liquid capture and release plays a fundamental role in the handling of various liquids, with applications that demand reversible, spatially and temporally precise, volumetrically accurate and programmable control over the liquid, independent of the details of the employed solid tools and processed liquids. However, current fluidic techniques do not fully meet these requirements. Here we present connected polyhedral frames to effectively address this challenge by tailoring liquid continuity between frames to dictate the liquid capture or release of individual frames, with an overall network that is readily switchable locally, dynamically and reversibly. Each frame captures or releases liquids, independent of its base materials, structures and processed liquids. The connected polyhedral frames are a versatile tool that enables many important functions including three-dimensional (3D) programmable patterning of liquids, 3D spatiotemporal control of concentrations of multiple materials, packaging of 3D liquid arrays and large-scale manipulation of multiple liquids, thus considerably advancing many fields, including interface science and soft materials.

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Interfacial Speciation Determines Interfacial Chemistry: X‐ray‐Induced Lithium Fluoride Formation from Water‐in‐salt Electrolytes on Solid Surfaces

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Angewandte Chemie 2020年第51期132卷 23380-23387页

作者： Hans‐Georg Steinrück Chuntian Cao Maria R. Lukatskaya Christopher J. Takacs Gang Wan David G. Mackanic Yuchi Tsao Jingbo Zhao Brett A. Helms Kang Xu Oleg Borodin James F. Wishart Michael F. Toney SSRL Materials Science Division SLAC National Accelerator Laboratory Menlo Park CA 94025 USA SLAC National Accelerator Laboratory Joint Center for Energy Storage Research (JCESR) Lemont IL 60439 USA Department Chemie Universität Paderborn 33098 Paderborn Germany Laboratory for Electrochemical Energy Systems Department of Mechanical and Process Engineering ETH Zürich 8092 Zürich Switzerland Department of Chemical Engineering Stanford University Stanford USA Department of Chemistry Stanford University Stanford USA Joint Center for Energy Storage Research Lawrence Berkeley National Laboratory Berkeley CA 94720 USA The Molecular Foundry Lawrence Berkeley National Laboratory Berkeley CA 94720 USA Energy Storage Branch Sensor and Electron Devices Directorate U.S. Army Research Laboratory Adelphi 20783 USA Chemistry Division Brookhaven National Laboratory Upton NY 11973 USA Department of Chemical and Biological Engineering University of Colorado Boulder CO 80309 USA

Using synchrotron X‐rays the LiTFSI/H2O electrolyte interfacial decomposition pathways in the „water‐in‐salt“ and „salt‐in‐water“ regimes are investigated. The resultant photoelectron‐induced reduction was revealed to be concentration‐dependent interfacial chemistry that only occurs among closely contact ion‐pairs, which constitutes the rationale behind the „water‐in‐salt“ ***‐concentrated “water‐in‐salt” electrolytes recently spurred resurgent interest for high energy density aqueous lithium‐ion batteries. Thermodynamic stabilization at high concentrations and kinetic barriers towards interfacial water electrolysis significantly expand the electrochemical stability window, facilitating high voltage aqueous cells. Herein we investigated LiTFSI/H2O electrolyte interfacial decomposition pathways in the “water‐in‐salt” and “salt‐in‐water” regimes using synchrotron X‐rays, which produce electrons at the solid/electrolyte interface to mimic reductive environments, and simultaneously probe the structure of surface films using X‐ray diffraction. We observed the surface‐reduction of TFSI− at super‐concentration, leading to lithium fluoride interphase formation, while precipitation of the lithium hydroxide was not observed. The mechanism behind this photoelectron‐induced reduction was revealed to be concentration‐dependent interfacial chemistry that only occurs among closely contact ion‐pairs, which constitutes the rationale behind the “water‐in‐salt” *** the commercial success of lithium‐ion batteries (LIBs) in our life ranging from personal electronic devices, to electric vehicles and grid storage, they still raise significant safety concerns, owing primarily to the combination of their high energy density and the utilization of flammable non‐aqueous electrolytes. Although catastrophic failure events are rare, they carry significant human and economic impact, as evident by recent calamities involving both electronic devices and electric vehicles. Wate

关键词： aqueous lithium-ion batteries interfaces interphases water-in-salt electrolyte X-ray chemistry

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Corrigendum to “Densities and viscosities of (ethylene glycol - water) and (1,3-propanediol - water) binary mixtures at high temperatures of 373.2 and 473.2 K and high pressures up to 40 MPa” [J Mol. Liq. 349 (2022) 118096]

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Journal of Molecular Liquids 2022年 367卷

作者： Takumi Ono Yushi Komatsu Yui Sasaki Masaki Ota Yoshiyuki Sato Yoshihiro Takebayashi Takeshi Furuya Hiroshi Inomata Research Institute for Chemical Process Technology National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan Research Center of Supercritical Fluid Technology Department of Chemical Engineering Graduate School of Engineering Tohoku University 6-6-11-403 Aoba Aramaki Sendai 980-8579 Japan Department of Frontier Science for Advanced Environment Graduate School of Environmental Studies Tohoku University 6-6-11-403 Aoba Aramaki Aoba-ku Sendai Miyagi 980-8579 Japan Department of Applied Chemistry and Environment Faculty of Engineering Tohoku Institute of Technology 35-1 Yagiyama Kasumicho Taihakuku Sendai 982-8577 Japan

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Defect engineering in Metal–Organic Frameworks Towards Advanced Mixed Matrix Membranes for Efficient Propylene/Propane Separation

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Angewandte Chemie 2021年第23期133卷

作者： Tae Hoon Lee Jae Gu Jung Yu Jin Kim Dr. Ji Soo Roh Dr. Hee Wook Yoon Dr. Bader S. Ghanem Prof. Hyo Won Kim Dr. Young Hoon Cho Prof. Ingo Pinnau Prof. Ho Bum Park Department of Energy Engineering Hanyang University Seoul 04763 Republic of Korea Functional Polymer Membranes Group Advanced Membranes and Porous Materials Center Division of Physical Sciences and Engineering King Abdullah University of Science and Technology Thuwal 23955 Saudi Arabia Department of Advanced Materials Engineering Kangwon National University Samcheok 25931 Republic of Korea Green Carbon Research Center Chemical & Process Technology Division Korea Institute of Chemical Technology (KRICT) Daejeon 34114 Republic of Korea

Highly permselective and durable membrane materials have been sought for energy-efficient C 3 H 6 /C 3 H 8 separation. Mixed-matrix membranes (MMMs) comprising a polymer matrix and metal–organic frameworks (MOFs) are promising candidates for this application; however, rational matching of filler-matrix is challenging and their separation performances need to be further improved. Here, we propose a novel strategy of “defect engineering” in MOFs as an additional degree of freedom to design advanced MMMs. MMMs incorporated with defect-engineered MOFs exhibit exceptionally high C 3 H 6 permeability and maintained C 3 H 6 /C 3 H 8 selectivity, especially with enhanced stability under industrial mixed-gas conditions. The gas transport, sorption, and material characterizations reveal that the defect sites in MOFs provide the resulting MMMs with not only ultrafast diffusion pathways but also favorable C 3 H 6 sorption by forming complexation with unsaturated open metal sites, confirmed by in situ FT-IR studies. Most importantly, the concept is also valid for different polymer matrices and gas pairs, demonstrating its versatile potential in other fields.

关键词： defect engineering in situ FT-IR spectroscopy membranes metal–organic frameworks (MOFs) olefin/paraffin separation

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