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Evaluation of phenanthrene removal from soil washing effluent by activated carbon adsorption using response surface methodology

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Chinese Journal of Chemical engineering 2022年第2期35卷 399-405页

作者： Zenan Wang Xin Zheng Yan Wang Heng Lin Hui Zhang Department of Environmental Science and Engineering Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key LaboratorySchool of Resource and Environmental SciencesWuhan UniversityWuhan 430079China Department of Environmental Science and Engineering Anhui Science and Technology UniversityFengyang 233100China

Soil washing is a promising technology for the remediation of polycyclic aromatic hydrocarbons(PAH)-contaminated sites,but surfactant needs to be recovered to reduce remediation cost and avoid secondary *** this study,activated carbon(AC),prepared from waste walnut shells,was applied to the adsorptive removal of phenanthrene(PHE)from synthetic soil washing effluent with Tween 80 as a model ***-Behnken statistical experiment design(BBD)and response surface methodology(RSM)were used to investigate the influence of AC dosage,Tween 80 concentration and adsorption time,and their potential interaction effect on PHE removal.A response surface model was established based on the BBD experimental *** goodness of fit of the model was confirmed by determination coefficient,coefficient of variation(CV)and residuals *** RSM model indicates that AC dosage or adsorption time had positive effect on PHE removal while Tween 80 concentration had negative *** interaction effect between AC dosage and Tween 80 concentration was significant but the other two interaction effects were *** 3D response surface plots were developed based on the RSM *** RSM model was validated by an additional experiment and the obtained result of PHE removal was very close to the model prediction,indicating the RSM model can effectively predict the PHE removal from soil washing effluent with activated carbon adsorption.

关键词： Activated carbon Adsorption Phenanthrene Response surface methodology Tween 80

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Characterization and source apportionment of pharmaceuticals in surface water of the Yangtze Estuary and adjacent sea

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environmental science and Pollution Research 2024年第39期31卷 52171-52180页

作者： Chen, Chunzhao Tang, Jian Li, Fei Xue, Rui Xiao, Yihua Chen, Ling Yu, Gang Advanced Interdisciplinary Institute of Environment and Ecology Beijing Normal University Zhuhai519087 China Department of Chemistry and Environmental Science New Jersey Institute of Technology NJ United States Institute of Science and Technology Information Beijing Academy of Science and Technology Beijing100089 China School of Environmental and Municipal Engineering Qingdao University of Technology Qingdao266520 China State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and Engineering Tongji University Shanghai200092 China

Pharmaceuticals, which are closely linked to human activities, have attracted global attention. This study investigated the occurrence characteristics of 20 pharmaceuticals in surface water of the Yangtze Estuary and adjacent sea. A total of 14 targeted pharmaceuticals were detected in both spring and summer sampling campaigns. The mean concentrations of sulfonamides and non-sulfonamides were 36.60 ± 19.43 ng·L−1 and 50.02 ± 41.07 ng·L−1, respectively. As for non-antibiotics, their concentrations were in the range of 24.34 ± 916.8 ng·L−1 with caffeine accounting for 6.17 ~ 86.70% (average percentage of 42.22%). Meanwhile, spatial distribution patterns showed similarities between antibiotics and non-antibiotics, with high levels occurring near the upper estuary, aquaculture areas, wastewater treatment plants, and the maximum turbidity zone. This phenomenon could be related to the sources of pharmaceuticals and the physicochemical properties of water bodies. Obviously, the first three areas are highly impacted by human activities or serve as important sources of terrestrial contaminants entering the East China Sea. The last area retains high amounts of suspended particles which may exert strong trapping effects on hydrophobic chemicals. Principal component analysis revealed the presence of three potential sources for pharmaceuticals in the Yangtze Estuary, with a relatively high percentage originating from incompletely treated municipal sewage. As for the temporal trend, pharmaceutical contamination was found to be higher in spring compared to summer, potentially due to variations in pharmaceutical consumption patterns, local rainfalls, and water temperatures. These findings provide fundamental data support for implementing appropriate local management strategies for pharmaceutical usages. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

关键词： Antibiotics

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Energetic,bio-oil,biochar,and ash performances of co-pyrolysis-gasification of textile dyeing sludge and Chinese medicine residues in response to K_(2)CO_(3),atmosphere type,blend ratio,and temperature

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Journal of environmental sciences 2024年第2期136卷 133-150页

作者： Gang Zhang Zhiyun Chen Tao Chen Shaojun Jiang Fatih Evrendilek Shengzheng Huang Xiaojie Tang Ziyi Ding Yao He Wuming Xie Jingyong Liu Engineering Research Center of None-food Biomass Efficient Pyrolysis and Utilization Technology of Guangdong Higher Education Institutes Dongguan University of TechnologyDongguan 523808China School of Environmental Science and Engineering Guangdong University of TechnologyGuangzhou 510006China School of Environment The Environmental Research InstituteMOE Key Laboratory of Theoretical Chemistry of EnvironmentSouth China Normal UniversityGuangzhou 510006China Department of Environmental Engineering Bolu Abant Izzet Baysal UniversityBolu 14052Turkey

Hazardous waste stream needs to be managed so as not to exceed stock-and rate-limited properties of its recipient *** co-pyrolysis of Chinese medicine residue(CMR)and textile dyeing sludge(TDS)and its bio-oil,biochar,and ash quality and quantity were characterized as a function of the immersion of K_(2)CO_(3),atmosphere type,blend ratio,and *** to the mono-pyrolysis of TDS,its co-pyrolysis performance with CMR(the comprehensive performance index(CPI))significantly improved by 33.9%in the N_(2)atmosphere and 33.2%in the CO_(2)*** impregnation catalyzed the co-pyrolysis at 370℃,reduced its activation energy by 77.3 kJ/mol in the N_(2)atmosphere and 134.6 kJ/mol in the CO_(2)atmosphere,and enriched the degree of coke gasification by 44.25%in the CO_(2)*** impregnation increased the decomposition rate of the co-pyrolysis by weakening the bond energy of fatty side chains and bridge bonds,its catalytic and secondary products,and its bio-oil yield by 66.19%.Its bio-oils mainly contained olefins,aromatic structural substances,and *** immersion of K_(2)CO_(3)improved the aromaticity of the copyrolytic biochars and reduced the contact between K and Si which made it convenient for Mg to react with SiO_(2)to form *** co-pyrolytic biochar surfaces mainly included-OH,-CH_(2),C=C,and *** main phases in the co-pyrolytic ash included Ca_(5)(PO_(4))_(3)(OH),Al_(2)O_(3),and magnesium-silicate.

关键词： Chemical impregnation Catalytic pyrolysis Chinese medicine residue Textile dyeing sludge Co-pyrolysis

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Mechanical pressing method for making high-quality perovskite single crystals

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Journal of Semiconductors 2023年第11期44卷 1-4页

作者： Chenglin Wang Jie Sun Jiangzhao Chen Cong Chen Liming Ding State Key Laboratory of Reliability and Intelligence of Electrical Equipment School of Materials Science and EngineeringHebei University of TechnologyTianjin 300401China Faculty of Materials Science and Engineering Kunming University of Science and TechnologyKunming 650093China Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing 100190China Macao Institute of Materials Science and Engineering(MIMSE) Macao University of Science and TechnologyMacao 999078China

Halide perovskites show excellent photovoltaic properties[1−4].However,the preparation of high-quality perovskite crystals remains a great challenge,which limits their *** materials applied to photodetectors mainly include polycrystalline thin films and single *** solution methods are used to prepare polycrystalline thin films,and the films are full of defects such as voids and grain boundaries[5−7].Compared to polycrystalline thin films,perovskite single crystals possess high crystallinity and low defect density[8−10].Photodetectors based on perovskite single crystals exhibit excellent performance[11].However,the size limitation of single crystals hinders their application in photodetectors[12].

关键词： perovskite polycrystalline hinder

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Catalytic combustion of toluene on Pt/Al_(2)O_(3) and Pd/Al_(2)O_(3) catalysts with CeO_(2),CeO_(2)-Y_(2)O_(3) and La_(2)O_(3) as coatings

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Journal of Rare Earths 2023年第8期41卷 1171-1178,I0002页

作者： Bing Zhou Quanli Ke Meijun Wen Tianbiao Ying Guokai Cui Ying Zhou Zhenyu Gu Hanfeng Lu Institute of Catalytic Reaction Engineering College of Chemical EngineeringZhejiang University of TechnologyHangzhou 310014China Key Laboratory of Environmental Pollution Control Technology Research of Zhejiang Province Eco-environmental Science Research&Design Institute of Zhejiang ProvinceHangzhou 310007China

CeO_(2),La_(2)O_(3),and CeO_(2)-Y_(2)O_(3) oxides were coated on the surface of spherical granular AI_(2)O_(3)(3-5 mm)through impregnation method,and proved as better supports of Pd and Pt *** influences of rare earth metal doping on the adsorption rates of Pd and Pt ions,as well as the catalytic performance,were *** show that the H_(2)PtCl_(6)·6H_(2)O adsorption rates of the Al_(2)O_(3) carriers modified by Ce,La,and CeY increase *** rare earth coatings can adsorb almost all H2PtCl_(6)·6H_(2)O in the *** with Pt/Al_(2)O_(3) catalyst,Pt/Ce-AI_(2)O_(3) and Pt/CeY-AI_(2)O_(3) catalysts have better degradation performance for toluene,and the T_(90) temperatures are both about 147℃.According to X-ray photoelectron spectroscopy(XPS)characterization,Pt^(0)is an important active species for catalytic oxidation reaction of *** CeO_(2)modification to the conventional Pt/Al_(2)O_(3)catalyst,the proportion of Pt^(0)increases from 74.5%to 82.1%.When the Pt^(0)content in the metal state is improved,the redox activity of the catalyst is promoted correspondingly.

关键词： Volatile organic compounds Catalytic oxidization Carrier modification Pt/Ce-Al_(2)O_(3) Rare earths

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Robust MXene aerogel assisted by cellulose nanofiber for efficient crude oil spill remediation

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Journal of Bioresources and Bioproducts 2025年第2期10卷 209-223页

作者： Shuwei Tang Lansheng Wei Zhengguo Wu Jiayao Weng Jiwen Luo Xiaoying Wang State Key Laboratory of Pulp and Paper Engineering South China University of TechnologyGuangzhou 510640China MOE Key Laboratory of Environmental Theoretical Chemistry South China Normal UniversityGuangzhou 510006China Department of Food Science and Engineering College of Life SciencesQingdao UniversityQingdao 266071China College of Food Science and Technology Nanjing Agricultural UniversityNanjing 210000China

Efficient cleanup of crude oil continues to be a global challenge owing to its inherent high viscos-ity,which makes it difficult to remove with conventional porous ***,a novel multi-functional aerogel was fabricated through directional freeze-drying,leveraging its photothermal properties and directional structure for the rapid cleanup of crude *** aerogel incorporates 2,2,6,6-tetramethyl-1-piperidinyloxy oxidized nanocellulose to enhance Ti_(3)C_(2)T_(x)(MXene)to con-struct functional networks,MXene/gold nanoparticles(MX/AuNPs)as photothermal absorbers,and methyltrimethoxysilane for hydrophobic *** 30 compression-release cycles at 90%strain,the strain retention of the aerogel is 85.7%,indicating its mechanical *** as-prepared aerogel showed durable hydrophobicity(145°),high oil/organic solvent absorption capacity(45.7-85.6 g/g),and efficient photothermal conversion,rapidly attaining and sustain-ing 76℃.Interestingly,for viscous crude oil that cannot be absorbed for a long time,the aerogel completed the absorption within 10 s after illumination,demonstrating an improved absorption ability of viscous crude ***,the obtained aerogel successfully achieved controlled and rapid light-driven motion,as well as long-lasting photothermal sterilization *** work presents a feasible strategy for developing multifunctional composite aerogels,addressing the increasing demands in crude oil separation applications.

关键词： MXene aerogel Nanocellulose Hydrophobicity Photothermal conversion Crude oil adsorption

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Novel titanium vanadate with superior Na^(+) transport kinetics for rapid charging and low-temperature sodium ion batteries

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Green Energy & Environment 2025年第2期10卷 374-381页

作者： Dan Lv Liehao Wei Cheng Wang Mingyue Wang Zhongchao Bai Yameng Fan Dongdong Wang Nana Wang Jian Yang Key Laboratory of Advanced Ceramics and Machining Technology(Ministry of Education) School of Materials Science and EngineeringTianjin UniversityTianjin300072China Key Laboratory of Colloid and Interface Chemistry Ministry of EducationSchool of Chemistry and Chemical EngineeringShandong UniversityJinan250100China Tianjin Key Lab of Indoor Air Environmental Quality Control School of Environmental Science and TechnologyTianjin UniversityTianjin300072China Institute for Superconducting and Electronic Materials University of WollongongWollongongAustralia Institute of Energy Materials Science(IEMS) University of Shanghai for Science and Technology516 Jungong RoadShanghai200093China

Sodium-ion batteries(SIBs)hold great promise for large-scale energy storage in the post-lithium-ion battery era due to their high rate performance and long lifespan,although their sluggish Na^(+) transformation kinetics still require *** by the excellent electrochemical performance of titanium-based anode materials,here,we present a novel titanium vanadate@carbon(TVO@C)material as anode for *** TVO@C material is synthesized via a facile coprecipitation method,with the following annealing process in an acetylene *** opened ion channel and the oxygen vacancies within TVO@C facilitate the diffusion of Na^(+) ions,reducing their diffusion ***,an ultrahigh rate of 100 A g^(-1)and long life of 10,000 cycles have been ***,the TVO@C electrode exhibits stable performance,not only at room temperature,but also at temperatures as low as 20 *** TVO@CjjNa_(3)V_(2)(PO_(4))_(3)@C full cells have also achieved stable discharge/charge for 500 *** is believed that this strategy provides new insight into the development of advanced electrodes and provides a new opportunity for constructing novel high rate electrodes.

关键词： Anode High rate Titanium vanadate Sodium ion batteries

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The iron-based biochar activating chlorite(ClO_(2)^(−))driven by mechanochemical ultrasonic:piecewise kinetics,biomimetic catalytic-mechanism,and novel advanced redox process

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Frontiers of environmental science & engineering 2025年第2期19卷 151-168页

作者： Qihui Xu Qianhui Yang Yuming Xie Lin Hu Zhenghao Fei Hong You School of Chemical and Environmental Engineering Yancheng Teachers UniversityYancheng 224007China State Key Laboratory of Urban Water Resources and Environment Harbin Institute of TechnologyHarbin 150090China School of Marine Science and Technology Harbin Institute of Technology at WeihaiWeihai 264209China

Chlorite(ClO_(2)^(−)or COI)is used to establish the advanced reduction and oxidation process(AROP).The iron/biochar-based particles(iron-based hydrothermal carbon with hinge-like structure,FebHCs,20 mg/L)can be utilized to activate COI(2 mmol/L)to present selective oxidation in removing triphenylmethane derivatives(15 min,90%).The protonation(H+at~102μmol/L level)played a huge role(k-2nd=0.136c-H+−0.014(R^(2)-adj=0.986),and rapp=−0.0876/c-H++1.017(R^(2)-adj=0.996))to boost the generation of the active species(e.g.,high-valent iron oxidizing species(HVI=O)and chlorine dioxide(ClO_(2))).The protonation-coupled electron transfer promoted Fe-substances in Feb/HCs activating COI(the calculated kobs ranging from 0.066−0.285 min^(−1)).The form of ClO_(2) mainly attributed to proton-coupled electron transfer(1e/1H+).The HVI=O was generated from the electron transfer within the coordination ***,carbon particles in FebHCs serve as the bridge for electron *** above roles contribute to the fracture and formation of coordination-induced bonds between Lx-FeII/III and ClO_(2)^(−)at phase interface to form *** ultrasonic(US)cavitation enhanced the mass transfer of active species in bulk solution,and the HVI=O and ClO_(2) attack unsaturated central carbon atoms of triphenylmethane derivatives to initiate selective ***,the scale-up experiment with continuous flow(k values of approximately 0.2 min^(−1),COD removal efficiency of approximately 80%)and the reactor with COMSOL simulation have also proved the applicability of the *** study offers a novel AROP and new insights into correspondingly heterogeneous interface activation mechanisms.

关键词： Chlorite Iron-based biochar Ultrasonic Chlorine dioxide High-valent iron oxidizing species

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Enhanced nitrogen removal from low strength anaerobic membrane bioreactor(AnMBR)permeate using complete nitrification and partial denitrification-anammox processes

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Frontiers of environmental science & engineering 2024年第12期18卷 153-166页

作者： Jingwei Fu Zhaoyang Hou Hexiang Zhao Qian Li Rong Chen Yu-You Li Key Laboratory of Environmental Engineering Shaanxi ProvinceXi’an University of Architecture and TechnologyXi’an 710055China Hualu Engineering&Technology Co. Ltd.Xi’an 710000China International Science&Technology Cooperation Center for Urban Alternative Water Resources Development Key Laboratory of Northwest Water ResourceEnvironment and EcologyMOEXi’an University of Architecture and TechnologyXi’an 710055China Department of Civil and Environmental Engineering Graduate School of EngineeringTohoku UniversitySendai Miyagi 980-8579Japan

In this study,an anaerobic membrane bioreactor coupled with a complete nitrification and partial denitrification-anammox process(AnMBR-NF-PDA)was developed to efficiently remove both chemical oxygen demand(COD)and *** control of raw water ratios was utilized to adjust the ratio of COD/NO_(3)^(-)-N,resulting in maximum nitrogen removal efficiency of 90.14% at a ratio of ***,specific anammox activity(SAA)increased with the proportion of raw water,peaking at 17.83 mg-N/(g-VSS∙d)in stage Ⅱ before *** variation was attributed to the significant presence of filamentous bacteria,especially“Acinetobacter”(13.58%-31.59%),which facilitated nitrite generation,supporting the nitrous oxide hypothesis in partial denitrification processes and enabling cross-feeding with ***,the average particle size of granular sludge increased from 300 to 528μm under the influence of filamentous *** analysis revealed an upsurge in genes associated with partial denitrification(NarG and NapA)as the COD/NO_(3)-N ratio *** abundance of genes closely correlated with anammox(Hzs and Hdh)peaked during stage Ⅱ,indicating the beneficial role of filamentous bacteria in the stable conversion of nitrite in PDA *** study offers valuable insights into optimizing the synergistic metabolism and granulation processes involving filamentous bacteria and AnAOB,thereby laying the groundwork for the practical application of AnMBR coupled with anammox processes in wastewater treatment.

关键词： Anammox Anaerobic membrane bioreactor COD/NO_(3)^(-)-N Filamentous bacteria

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Three-dimensional lightweight melamine foams modified by MXene sheets and CoNi alloys towards multifunctional microwave absorption

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Nano Research 2025年第2期18卷 377-389页

作者： Nannan Wu Zhengying Shen Yitao Ma Zhizheng Wu Chuanxin Hou Sijie Guo Jian Tian Jiurong Liu School of Material Science and Engineering Shandong University of Science and TechnologyQingdao 266590China School of Mathematics and Systems Science Shandong University of Science and TechnologyQingdao 266590China School of Environmental and Material Engineering Yantai UniversityYantai 264005China Department of Chemical&Biomolecular Engineering University of TennesseeKnoxvilleTN 37996USA Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education and School of Materials Science and EngineeringShandong UniversityJinan 250061China

Taking the increasing issue of electromagnetic waves(EMW)pollution and the necessity for applications in extreme environments,there is a pressing requirement to create multifunctional microwave absorption materials(MAMs)to meet the current *** this work,we achieved the successful combination of MXene sheets and metal organic framework(MOFs)derived CoNi@C magnetic alloys onto the three dimensional(3D)melamine foam(MF)skeleton using vacuum impregnation and electrostatic self-assembly *** obtained MF@MXene/CoNi@C composite foams achieved outstanding MA performance,with an optimal reflection loss(RL)value of–24.1 dB and a maximum effective absorption bandwidth(EAB)of 6.88 GHz at a thickness of 1.68 mm,effectively covering the whole Ku *** superior MA performance is ascribed to the composite foams’multi-component architecture,distinctive 3D porous structure,and the synergistic impact of multiple loss ***,the MF@MXene/CoNi@C composite foams demonstrate exceptional photothermal conversion,thermal insulation,and infrared stealth capabilities,effectively coping with the demands of applications in extreme *** work serves as a valuable resource and source of inspiration for the development of lightweight broadband,multifunctional efficient MAMs.

关键词： multifunctional microwave absorption MXene thermal insulation infrared stealth

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