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Effects of Nanoparticle CeO2 on the Physiology of Chlorella pyrenoidosa

IOP Conference Series: Earth and Environmental Science 2020年第1期450卷

作者： Zhiqi Liao Junhui Wu Huaqiang Chu Yalei Zhang Xuefei Zhou Modern Agricultural Science and Engineering Institute National Engineering Research Center of Protected Agriculture Tongji University Shanghai 200092 China State Key Laboratory of Pollution Control and Resources Reuse Key Laboratory of Yangtze River Water Environment of Ministry of Education College of Environmental Science and Engineering Tongji University Shanghai 200092 China

Nanoparticle cerium oxide (n-CeO2) has been widely used, recently, its toxicity to the aquatic environment has received increasing attention. This study aimed to explore the effects of n-CeO2 on the physiology of Chlorella pyrenoidosa. Results showed that n-CeO2 may inhibited the growth of Chlorella pyrenoidosa, and make some influence of chla and protein contents because of the ROS. The activity of SOD and MDA contents also indicated that the high concentration of n-CeO2 may beyond the range of tolerance, which means ROS content may be a key factor in the toxic effects of n-CeO2 on Chlorella pyrenoidosa.

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Research Progress of Membrane Bioreactor in Organic Industrial Wastewater Treatment

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IOP Conference Series: Earth and Environmental Science 2019年第3期330卷

作者： Yiming Zhang Yuchao Chen Yuhang Yuan Kun Dong Xiangmin Li Haixiang Li Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology Guilin University of Technology Guilin Guangxi 541006 China State Key Laboratory of Pollution Control and Resource Reuse Research Tongji University Shanghai 200092 China

The paper expounds the membrane bioreactor (MBR) working principle, process type and technical characteristics, and reviews the application of membrane bioreactor in the treatment of petrochemical wastewater, pharmaceutical wastewater, printing wastewater in recent years, and summarizes and analyzes the problems in the application of the MBR and the solutions. Finally, the future research on the membrane bioreactor treatment of organic industrial wastewater is prospected.

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Progress Research on Treatment Methods of Printing and Dyeing Wastewater

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IOP Conference Series: Earth and Environmental Science 2019年第3期330卷

作者： Yuchao Chen Yiming Zhang Yuhang Yuan Haixiang Li Kun Dong Xiangmin Li Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology Guilin University of Technology Guilin Guangxi 541006 China State Key Laboratory of Pollution Control and Resource Reuse Research Tongji University Shanghai 200092 China

With the rapid development of the printing and dyeing industry, the amount of wastewater discharged is also increasing. Printing and dyeing wastewater is recognized as one of the most difficult industrial wastewater treatments due to its complex composition, high content of refractory organic matter, high chroma, high alkalinity and poor biodegradability. This paper mainly reviews the characteristics and effects of the advanced oxidation method (Fenton oxidation method, photocatalytic oxidation method, ozone oxidation method, wet oxidation method, electrochemical oxidation method) for treating printing and dyeing wastewater, a preliminary outlook on the combined use of several methods was also carried out.

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Column adsorption of Cu(Ⅱ) by polymer-supported nano-iron oxides in the presence of sulfate: Experimental and mathematical modeling

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Chinese Journal of Chemical Engineering 2017年第9期25卷 1163-1169页

作者： Hui Qiu Xiaolin Zhang Zhe Xu Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET) School of Environmental Science and Engineering Nanjing University of Information Science & Technology State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University

Polymer-supported hydrous iron oxides(HFOs) are promising for heavy metals removal from aqueous *** ubiquitous inorganic ligands, e.g., sulfate, are expected to exert considerable impacts on pollutants removal by these hybrid sorbents. Herein, we obtained a hybrid sorbent HFO-PS by encapsulating nanosized HFO into macroporous polystyrene(PS) resin. Both batch and column sorption experiments of Cu(Ⅱ) by HFO-PS were carried out in the presence of sulfate. Obviously, the presence of sulfate is favorable for Cu(Ⅱ) sorption onto *** performances of column Cu(Ⅱ) removal were fitted and predicted with Adams–Bohart, Clark, Thomas and BDST models. Thomas model is suggested best-fit to predict the breakthrough curves. Besides, a linear correlation is observed between breakthrough time and column length based on BDST model, which might be useful for predicting the breakthrough time for Cu(Ⅱ) removal by HFO-PS.

关键词： Composite Nanotechnology Waste water Hydrous iron oxide Fixed-bed adsorption Thomas model

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Corrigendum to "Activated low-grade phosphate rocks for simultaneously reducing the phosphorus loss and cadmium uptake by rice in paddy soil" [Sci. Total Environ., 780 (2021) 146550/STOTEN-D-21-02113]

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The Science of the total environment 2021年 789卷 148432页

作者： Xiangqing Shao Huanli Yao Shihao Cui Yutao Peng Xing Gao Chengpeng Yuan Xian Chen Yueming Hu Xiaoyun Mao College of Natural Resources and Environment South China Agricultural University Guangzhou 510642 China. Beijing Key Laboratory of Farmyard Soil Pollution Prevention control and Remediation College of Resources and Environmental Sciences China Agricultural University Beijing 100193 China. State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Science Beijing 100012 China State Key Laboratory for Pollution Control and Resource Reuse College of Environmental Science and Engineering Tongji University Shanghai 200092 China. College of Natural Resources and Environment South China Agricultural University Guangzhou 510642 China. Electronic address: xianchen302@***. College of Natural Resources and Environment South China Agricultural University Guangzhou 510642 China Guangdong Provincial Key Laboratory for Land Use and Consolidation South China Agricultural University Guangzhou 510642 China. College of Natural Resources and Environment South China Agricultural University Guangzhou 510642 China. Electronic address: xiaoyunmaouf@***.

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Physical and chemical characteristics of PM_(2.5) and its toxicity to human bronchial cells BEAS-2B in the winter and summer

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2018年第4期19卷 317-326页

作者： Hui-hui ZHANG Zheng LI Yu LIU Ping XINAG Xin-yi CUI Hui YE Bao-lan HU Li-ping LOU College of Environmental & Resource Sciences Zhejiang University Hangzhou 310058 China State Key Laboratory of Plant Physiology and Biochemistry College of Life Sciences Zhejiang University Hangzhou 310058 China State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing 210046 China Hangzhou Environmental Monitoring Center Hangzhou 310007 China Research Center of Air Pollution and Health Zhejiang University Hangzhou 310058 China

With the increasing occurrence of haze during the summer, the physicochemical characteristics and toxicity differences in PM2.5 in different seasons are of great concern. Hangzhou is located in an area that has a subtropical monsoon climate where the humidity is very high during both the summer and winter. However, there are limited studies on the seasonal differences in PM2.5 in these weather conditions. In this test, PM2.5 samples were collected in the winter and summer, the morphology and chemical composition of PM2.5 were analyzed, the toxicity of PM2.5 to human bronchial cells BEAS-2B was compared, and the correlation between PM2.5 toxicity and the chemical compo- sition was discussed. The results showed that during both the winter and summer, the main compounds in the PM2.5 samples were water-soluble ions, particularly SO4^2-, NO3^-, and NH4^＋, followed by organic components, while heavy metals were present at lower levels. The higher the mass concentration of PM2.5, the greater its impact on cell viability and ROS levels. However, when the mass concentration of PM2.5 was similar, the water extraction from the summer samples showed a greater impact on BEAS-2B than that from the winter samples. The cytotoxicity of PM2.5 was closely associated with heavy metals and organic pollutants but less related to water-soluble ions.

关键词： PM2.5 Seasonal difference Physical and chemical characteristics Cytotoxicity

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Uniform ordered mesoporous ZnCo2O4 nanospheres for super-sensitive enzyme-free H2O2 biosensing and glucose biofuel cell applications

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Nano Research 2017年第7期10卷 2482-2494页

作者： Shiqiang Cui Li Li Yaping Ding Jiangjiang Zhang QingshengWu Zongqian Hu School of Materials Science and Engineering College of Sciences Shanghai University Shanghai 200444 China State Key Laboratory of Pollution Control and Resource Reuse Tongji University Shanghai 200444 China Beijing Institute of Radiation Medicine Beijing 100850 China

Uniform, ordered mesoporous ZnCo2O4 （meso-ZnCo2O4） nanospheres were successfully synthesized using a sacrificing template method. The meso-ZnCo2O4 nanospheres were used for the first time for H2O2 biosensing and in glucose biofuel cells （GBFCs） as an enzyme mimic. The meso-ZnCo2O4 nanospheres not only exhibited excellent catalytic performance in the H2O2 sensor, achieving a high sensitivity （658.92 μ***-2） and low detection limit （0.3 nM at signal-to-noise ratio （S/N） = 3）, but also performed as an excellent cathode material in GBFCs, resulting in an open circuit voltage of 0.83 V, maximum power density of 0.32 ***-2, and limiting current density of 1.32 ***-2. The preeminent catalytic abilities to H2O2 and glucose may be associated with the large specific surface area of the mesoporous structure in addition to the intrinsic catalytic activity of ZnCo2O4. These significant findings provide a successful basis for developing methods for the supersensitive detection of H2O2 and enriching catalytic materials for biofuel cells.

关键词： mesoporous ZnCo2O4 H2O2 biosensing glucose biofuel cells

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Engineering Bismuth–Tin Interface in Bimetallic Aerogel with a 3D Porous Structure for Highly Selective Electrocatalytic CO2Reduction to HCOOH

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Angewandte Chemie 2021年第22期133卷

作者： Dr. Zexing Wu Hengbo Wu Prof. Weiquan Cai Prof. Zhenhai Wen Prof. Baohua Jia Prof. Lei Wang Prof. Wei Jin Prof. Tianyi Ma State Key Laboratory Base of Eco-chemical Engineering College of Chemistry and Molecular Engineering Qingdao University of Science & Technology 53 Zhengzhou Road Qingdao 266042 P. R. China State Key Laboratory of Pollution Control and Resources Reuse School of Environmental Science and Engineering Tongji University 1239 Siping Road Shanghai 200092 China School of chemistry and chemical engineering Guangzhou University 230 Guangzhou University City Outer Ring Road Guangzhou 510006 China CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China Centre for Translational Atomaterials Faculty of Science Engineering and Technology Swinburne University of Technology John Street Hawthorn VIC 3122 Australia

Electrochemical reduction of CO 2 (CO 2 RR) into valuable hydrocarbons is appealing in alleviating the excessive CO 2 level. We present the very first utilization of metallic bismuth–tin (Bi-Sn) aerogel for CO 2 RR with selective HCOOH production. A non-precious bimetallic aerogel of Bi-Sn is readily prepared at ambient temperature, which exhibits 3D morphology with interconnected channels, abundant interfaces and a hydrophilic surface. Superior to Bi and Sn, the Bi-Sn aerogel exposes more active sites and it has favorable mass transfer properties, which endow it with a high FE HCOOH of 93.9 %. Moreover, the Bi-Sn aerogel achieves a FE HCOOH of ca. 90 % that was maintained for 10 h in a flow battery. In situ ATR-FTIR measurements confirmed that the formation of *HCOO is the rate-determining step toward formic acid generation. DFT demonstrated the coexistence of Bi and Sn optimized the energy barrier for the production of HCOOH, thereby improving the catalytic activity.

关键词： aerogels bismuth formic acid tin

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Edge-epitaxial growth of InSe nanowires toward high-performance photodetectors

arXiv

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arXiv 2019年

作者： Hao, Song Yan, Shengnan Wang, Yang Xu, Tao Zhang, Hui Cong, Xin Li, Lingfei Liu, Xiaowei Cao, Tianjun Gao, Anyuan Zhang, Lili Jia, Lanxin Long, Mingsheng Hu, Weida Wang, Xiaomu Tan, Pingheng Sun, Litao Cui, Xinyi Liang, Shi-Jun Miao, Feng National Laboratory of Solid-State Microstructures School of Physics Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing210093 China State Key Laboratory of Infrared Physics Shanghai Institute of Technical Physics Chse Academy of Sciences Shanghai200083 China SEU-FEI Nano-Pico Center Key Laboratory of MEMS of Ministry of Education Southeast University Nanjing210096 China State Key Laboratory of Superlattices and Microstructures Institute of Semiconductors College of Materials Science and Opto-Electronic Technology Chinese Academy of Sciences Beijing100083 China School of Electronic Science and Technology Nanjing University Nanjing210093 China State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing210046 China

Semiconducting nanowires offer many opportunities for electronic and optoelectronic device applications due to their special geometries and unique physical properties. However, it has been challenging to synthesize semiconducting nanowires directly on SiO2/Si substrate due to lattice mismatch. Here, we developed a catalysis-free approach to achieve direct synthesis of long and straight InSe nanowires on SiO2/Si substrate through edge-homoepitaxial growth. We further achieved parallel InSe nanowires on SiO2/Si substrate through controlling growth conditions. We attributed the underlying growth mechanism to selenium self-driven vapor-liquid-solid process, which is distinct from conventional metal-catalytic vapor-liquid-solid method widely used for growing Si and III-V nanowires. Furthermore, we demonstrated that the as-grown InSe nanowire-based visible light photodetector simultaneously possesses an extraordinary photoresponsivity of 271 A/W, ultrahigh detectivity of 1.57×1014 Jones and a fast response speed of microsecond scale. The excellent performance of the photodetector indicates that as-grown InSe nanowires are promising in future optoelectronic applications. More importantly, the proposed edge-homoepitaxial approach may open up a novel avenue for direct synthesis of semiconducting nanowire arrays on SiO2/Si substrate. Copyright © 2019, The Authors. All rights reserved.

关键词： Nanowires

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DOMIRISK: A User-Friendly Domino Effect Decision Support System

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IOP Conference Series: Earth and Environmental Science 2019年第1期401卷

作者： Y Yang Y Qian State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing 210046 P.R. China

The continuous development of modern industry has potential hazard, of which domino effect is a major threat that could result in catastrophe. Moreover, domino accidents will endanger the environment and human health. Some decision support systems for preventing the domino effect have been developed, while most of them are too theoretical and have obvious limitations, such as ignoring the influence of personnel, operational, and other real factors in the actual industrial production process. This paper emphasizes the causes of potential domino accidents and the construction of the accident chain. A system called DOMIRISK is designed which can: 1) quantify the domino effect of the entire plant; 2) identify the root cause of potential domino accidents; 3) build the accident chain of domino effect; 4) assess the environmental risk of the domino accident. A chemical plant is used as an example to illustrate how the system provides practical decision support for controlling the occurrence and spread of domino accidents and protecting environment.

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