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SSRN 2022年

作者： Xue, Tiantian Yang, Fan Zhao, Xingyu He, Feng Wang, Zhenyu Wali, Qamar Fan, Wei Liu, Tianxi Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material Engineering Jiangnan University Wuxi214122 China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering Donghua University 2999 North Renmin Road Shanghai201620 China Institute of Environmental Processes and Pollution Control School of Environment and Civil Engineering Jiangnan University Wuxi214122 China NUTECH School of Applied Sciences & Humanities National University of Technology Islamabad44000 Pakistan

Solar vapor generation is a friendly water purification technology via efficiently utilization of natural sunlight. However, the present solar evaporation devices are impeded by high cost, inferior mechanical property, low efficiency and poor durability. Here, inspired by plant transpiration, we designed and fabricated a scalable and portable polypyrrole-modified polyimide nanofiber aerogel (PPy-PI NAG) for efficient and durable solar vapor generation. During the evaporation process, the bottom hydrophilic PI NAG with hierarchical cellular fibrous structure acts as the roots for fast water transportation, while the upper PPy layer with porous and rough surface plays as the leaves for evaporation. More importantly, the highly porous PPy-PI NAG possesses a low thermal conductivity (0.05 W m-1 K-1), which can confine the heat energy on the air-water interface, exhibiting superior heat localization effect. Under one sun illumination, the PPy-PI NAG exhibits a high average evaporation rate of 1.42 kg m-2 h-1 and achieved 99.7% ion removal efficiency for seawater. Moreover, the PPy-PI NAG exhibits stable evaporation efficiency with continuous desalination for 15 days and compressing/folding for 1000 cycles, and can be compressed or folded into small size to the benefit of carriage or transportation, demonstrating great potential as portable solar evaporation device for personal and household evaporation systems. © 2022, The Authors. All rights reserved.

关键词： Nanofibers

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Advanced Nitrogen Removal from Municipal Wastewater by Autotrophy-Heterotrophy Coupled Anammox System in a Novel Simultaneous Microaerobic/Limited-Oxygen Sbr: Interspecific Correlation Network

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SSRN 2023年

作者： Zhou, Li Al-Dhabi, Naif Abdullah Zhang, Xiaonong Gao, Bo Zhu, Zixuan Ruth, Guerra Zhang, Xingxing Tang, Wangwang Wu, Peng National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment School of Environmental Science and Engineering Suzhou University of Science and Technology Suzhou215009 China Department of Botany and Microbiology College of Science King Saud University P. O. Box 2455 Riyadh11451 Saudi Arabia School of Ecological and Environmental Sciences East China Normal University Shanghai200241 China College of Environmental Science and Engineering Key Laboratory of Environmental Biology and Pollution Control Ministry of Education Hunan University Changsha410082 China

Nowadays, autotrophic nitrogen removal of mainstream municipal wastewater by anammox is highly promising. However, due to the lack of a long-term stable NOB inhibition strategy, the accumulation of NO3-N byproducts severely affects the nitrogen removal efficiency (NRE). In this research, a simultaneous autotrophy-heterotrophy coupled anammox system was developed in a microaerobic/oxygen-limited SBR through the co-induction of the regulation of aeration intensity and limited organics to achieve the optimization of the mainstream PN/A processes. The nitrogen removal system constructed by anammox and denitrification achieved the high NRE of 90.77 ± 1.82%. Under the autotrophic-heterotrophic multiple induction of nitrite supply (PN, PD and EPD), the contribution of the nitrogen removal by anammox increased to 57.93%. The high-throughput sequencing analysis showed that the relative abundance of AnAOB increased from 0.40% to 0.67%. In-situ tests assay further demonstrated that the realization of multi-channel nitrite supply facilitated the enrichment of AnAOB. The endogenous denitrifying bacterial genus Candidatus (Ca.) Competibacter was significantly enriched in the system (7.98%, P ≤ 0.001), which enhanced the deep removal of NOX-N and organics. Correlation network analysis indicated that closer and more balanced interspecies interactions were the key to the high efficiency and stability of the autotrophy-heterotrophy coupled anammox system. Based on the nitrite recirculation and denitrification performance, the simultaneous autotrophy-heterotrophy coupled anammox system established by the novel SBR provides a potential strategy for mainstream anammox applications. © 2023, The Authors. All rights reserved.

关键词： Denitrification

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Correction: Insight into mineralizer modified and tailored scorodite crystal characteristics and leachability for arsenic-rich smelter wastewater stabilization

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RSC advances 2024年第41期14卷 29965页

作者： Yonggang Sun Qi Yao Xin Zhang Hongling Yang Na Li Zhongshen Zhang Zhengping Hao Department of Environmental Nano-materials Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 P. R. China zhangxin@*** +86-10-62843096 +86-10-62843688. National Engineering Laboratory for VOCs Pollution Control Material & Technology University of Chinese Academy of Sciences Beijing 101408 P. R. China.

[This corrects the article DOI: 10.1039/C8RA01721B.].

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Resource, Economic, and Carbon Benefits of End-of-Life Trucks' Urban Mining in China

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SSRN 2024年

作者： Xiong, Xin Wang, Haicheng Liu, Fei Miao, Youping Yang, Shuo He, Ziyan Nakajima, Kenichi Xu, Guochang School of Sustainable Energy and Resources Nanjing University Suzhou215163 China Material Cycles Division National Institute for Environmental Studies Onogawa 16-2 Tsukuba305-8506 Japan Shandong Weiji Carbon-technology Co. Ltd. Shandong Jinan250000 China Academy of Agricultural Planning and Engineering Ministry of Agriculture and Rural Affairs Beijing100125 China State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing100084 China Department of Information Engineering Zibo Technician College Shandong Zibo255000 China Graduate School of Frontier Sciences The University of Tokyo 5-1-5 Kashiwanoha Chiba Kashiwa277-8563 Japan

China’s booming truck industry has led to a rapid rise in end-of-life trucks. However, only a third of them end up in formal recycling. Accordingly, this study estimated the resource, economic, and decarbonization potential of end-of-life trucks in China from 2000 to 2050. Our analysis shows that the total amount of end-of-life trucks will increase 9-fold to 53 Mt by 2050. The total economic benefit from these recyclable resources will rise from 2.6 billion US$ in 2010 to 23 billion US$, or 44 billion US$ if considering 2% inflation, by 2050. Effective urban mining of Al, Fe, and Cu was able to reduce carbon emissions by 45 Mt from primary material production in 2023. These quantitative data can provide scientific support for policy formulation and technology development. Urban mining of end-of-life trucks can positively promote dematerialization and decarbonization development for a society that lacks clean energy power grids. © 2024, The Authors. All rights reserved.

关键词： Carbon

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Correction: Synthesis of Bi2WO6/Na-bentonite composites for photocatalytic oxidation of arsenic(iii) under simulated sunlight

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RSC advances 2019年第70期9卷 40810页

作者： Quancheng Yang Yunxiang Dai Zijian Huang Jing Zhang Ming Zeng Changsheng Shi School of Chemical and Environmental Engineering China University of Mining and Technology Beijing 100083 P. R. China. Key Laboratory of Environmental Nano-Technology and Health Effect Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 P. R. China jingzhang@***. Department of Environmental Engineering North China Institute of Science and Technology Beijing 101601 P. R. China northinstitute@***. National Engineering Laboratory for VOCs Pollution Control Materials & Technology University of Chinese Academy of Sciences Beijing 101408 P. R. China.

[This corrects the article DOI: 10.1039/C9RA06181A.].

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Zn/ [email protected] (Fe) metal–organic frameworks are effective photo-Fenton catalysts for RhB removal

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Separation and Purification technology 2022年 293卷

作者： Yucheng Li Xiangyu Wang Zhengyin Duan Dehai Yu Qiang Wang Dandan Ji Wenxia Liu State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control College of Light Industry and Food Engineering Guangxi University Nanning 530004 China National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials Fuzhou Fujian 350108 China School of Environmental Science and Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China

Treating dye-contaminated wastewater using the visible light–driven photo-Fenton reaction is beneficial to environmental remediation. This paper reports the synthesis of a novel, highly effective photo-Fenton catalyst, the Zn/ [email protected] (Fe) composite, by a facile internal-growth method. The composite, which had an MOF-in-MOF structure, activated H 2 O 2 to decompose RhB, a polluting-dye model, under visible-light illumination. The transfer of the electron–hole pair was synergistically accelerated by the reaction centers of the composite (the MIL-101(Fe) shell and Zn/Co-ZIFs core), which enhanced H 2 O 2 activation. The generated OH, O 2 − , and 1 O 2 effectively decomposed RhB. The composite’s catalytic performance was significantly enhanced by the electronic hybridization of its Fe 3+ , Co 2+ , and Zn 2+ metal centers. Thus, the composite demonstrated a remarkable capability to remove RhB. The composite polymetallic MOFs loaded with 3% Zn/Co-ZIFs prepared by us showed good reusability and water stability, and their morphology and structure did not change significantly after four runs, depending on the iron, cobalt, and zinc metal leaching concentrations 0.134 mg/L, 0.06 mg/L and 0.054 mg/L respectively. This study provides a novel method to construct an Zn/ [email protected] (Fe) catalyst with dual reaction centers that enhance the transfer of electron–hole pairs. Our findings inspire the application of MOF-based photo-Fenton catalysts to wastewater treatment and environmental remediation.

关键词： MOF-in-MOF photo-Fenton Environmental remediation

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Elucidating Confinement and Microenvironment of Ru Clusters Stably Confined in MFI Zeolite for Efficient Propane Oxidation

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Angewandte Chemie 2024年第5期137卷

作者： Jingjing Wang Dr. Zeyu Jiang Hengyue Xu Prof. Xinzhe Li Dr. Yanfei Jian Dr. Lianghui Xia Dr. Pei Su Qiyuan Liu Prof. Shouning Chai Dr. Mudi Ma Dr. Abdallah Amedlous Dr. Mathias Barreau Prof. Zhengping Hao Prof. Jiaguo Yu Prof. Chi He State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 Shaanxi P.R. China Laboratoire Catalyse & Spectrochimie Normandie Univ ENSICAEN UNICAEN CNRS Caen 14000 France Department of Chemistry Tsinghua University Beijing 100084 P.R. China College of Environmental and Chemical Engineering Yanshan University Qinhuangdao 066004 P.R. China National Engineering Laboratory for VOCs Pollution Control Material & Technology University of Chinese Academy of Sciences Beijing 101408 P.R. China Laboratory of Solar Fuel Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 430078 P.R. China

Achieving active and stable heterogeneous catalysts by encapsulating noble metal species within zeolites is highly promising for high utilization and cost efficiency in thermal and environmental catalytic reactions. Ru, considered an economical noble metal alternative with comparable performance, faces great challenges within MFI-type microporous zeolites due to its high cohesive energy and mobility. Herein, an innovative strategy was explored that couples hydrothermal in situ ligand protection with stepwise calcination in a flowing atmosphere to embed ultrasmall Ru clusters anchored at K + -healed silanol sites (≡Si−Ru δ+ −O−K complexes) within 10-membered ring sinusoidal channels of MFI. Comprehensive experiments and theoretical calculations unveiled that the interplay between confined Ru clusters and MFI induces local strain in MFI, creating a unique catalytic microenvironment around the Ru clusters. This synergy interaction enhances alkane deep oxidation as the confined Ru clusters and the MFI microenvironment collectively pre-activate C 3 H 8 and O 2 , facilitate the cleavage of C−H and C−C bonds at low temperatures. Notably, the stable geometric and electronic properties of the confined Ru show exceptional thermal stability up to 1000 °C, rivaling fresh catalysts. These findings shed vital methodological and mechanistic insights for developing efficacious heterogeneous catalysts for thermal catalysis.

关键词： heterogeneous catalysis microenvironment Ruthenium strain zeolite

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Modulating the Electronic Metal-Support Interactions in Single-Atom Pt1−CuO Catalyst for Boosting Acetone Oxidation

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Angewandte Chemie 2022年第28期134卷

作者： Dr. Zeyu Jiang Dr. Mingjiao Tian Dr. Meizan Jing Prof. Shouning Chai Dr. Yanfei Jian Dr. Changwei Chen Prof. Mark Douthwaite Dr. Lirong Zheng Dr. Mudi Ma Prof. Weiyu Song Prof. Jian Liu Prof. Jiaguo Yu Prof. Chi He State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China Department of Chemistry National University of Singapore Singapore 117543 Singapore Laboratory of Solar Fuel Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 430074 P. R. China State Key Laboratory of Heavy Oil Processing China University of Petroleum Beijing 102249 P. R. China Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis School of Chemistry Cardiff University Cardiff CF10 3AT UK Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 P. R. China National Engineering Laboratory for VOCs Pollution Control Material & Technology University of Chinese Academy of Sciences Beijing 101408 P. R. China

The development of highly active single-atom catalysts (SACs) and identifying their intrinsic active sites in oxidizing industrial hazardous hydrocarbons are challenging prospects. Tuning the electronic metal-support interactions (EMSIs) is valid for modulating the catalytic performance of SACs. We propose that the modulation of the EMSIs in a Pt 1 −CuO SAC significantly promotes the activity of the catalyst in acetone oxidation. The EMSIs promote charge redistribution through the unified Pt−O−Cu moieties, which modulates the d -band structure of atomic Pt sites, and strengthens the adsorption and activation of reactants. The positively charged Pt atoms are superior for activating acetone at low temperatures, and the stretched Cu−O bonds facilitate the activation of lattice oxygen atoms to participate in subsequent oxidation. We believe that this work will guide researchers to engineer efficient SACs for application in hydrocarbon oxidation reactions.

关键词： Acetone Oxidation Electronic Metal-Support Interactions Intrinsic Mechanism Single-Atom Catalysts

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MOFs‐Based Heterogeneous Catalysts: New Opportunities for Energy‐Related CO2Conversion

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Advanced Energy materials 2018年第32期8卷

作者： Zhendong Lei Yuancheng Xue Wenqian Chen Wenhui Qiu Yong Zhang Satoshi Horike Liang Tang School of Environmental and Chemical Engineering Shanghai University Shanghai 200444 P. R. China NUS Graduate School for Integrative Sciences and Engineering National University of Singapore Singapore 117583 Singapore Shanghai Institute of Applied Radiation Shanghai University 20 Chengzhong Road Shanghai 201800 P. R. China Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control School of Environmental Science and Engineering Southern University of Science and Technology Shenzhen 518055 Guangzhou P. R. China State Environmental Protection Key Laboratory of Integrated Surface Water‐Groundwater Pollution Control School of Environmental Science and Engineering Southern University of Science and Technology Shenzhen 518055 Guangzhou P. R. China Institute for Integrated Cell‐Material Sciences (WPI‐iCeMS) Institute for Advanced Study Kyoto University Yoshida Sakyo‐ku Kyoto 606‐8501 Japan

Metal–organic frameworks (MOFs) with high surface area and tunable chemical structures have attracted tremendous attention. Recently, the utilization of solar energy for CO 2 conversion to produce valuable chemicals or fuels has become extremely appealing. The interior of MOFs can be designed to have defects, heteroatoms and embedded nanoscale metal catalysts for the development of CO 2 conversion. In this review, the recent development of MOFs‐based catalysts for CO 2 conversion reactions, including photocatalysis and electrocatalysis are summarized. In particular, the preparation and mechanism of CO 2 conversion‐based MOFs are discussed. The examples are expected to provide deeper understanding in preparing highly active and stable MOFs‐based CO 2 conversion materials.

关键词： electrocatalysis energy products kinetics metal–organic frameworks (MOFs) photocatalysis

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