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A confinement strategy to in-situ prepare a peanut-like N-doped, C-wrapped TiO_(2) electrode with an enhanced desalination capacity and rate for capacitive deionization

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Nano Research 2021年第3期14卷 684-691页

作者： Mingxing Liang Xueting Bai Fei Yu Jie Ma College of Marine Ecology and Environment Shanghai Ocean UniversityShanghai201306China State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and EngineeringTongji UniversityShanghai200092China Research Center for Environmental Functional Materials College of Environmental Science and EngineeringTongji University1239 Siping RoadShanghai200092China Shanghai Institute of Pollution Control and Ecological Security Shanghai200092China

Capacitive deionization(CDI)technology has been considered a promising desalination technique,especially for brackish water,because of its relatively low energy consumption,facile operation,and easy regeneration of ***,the desalination capacity,cost,fabrication method,electrochemical stability,and environmental unfriendliness of the electrodes have restricted the practical application of the CDI ***,we reported the one-step in situ preparation of nitrogen-doped and carbon-decorated MXene-derived TiO_(2)(termed N-TiO_(2−x)/C)through the confinement-growth *** small particle size(∼25 nm)and uniform distribution of a peanut-like N-TiO_(2−x)/C material could be ascribed to the confined growth space created by the nanoporous structure of melamine *** defects produced by N doping provide an enhanced electrical conductivity and more adsorption sites,while wrapping with a carbon shell layer increases the conductivity and offers protection for N-TiO_(2−x) to achieve an excellent electrochemical *** prepared N-TiO_(2−x)/C electrode is hydrophilic due to the abundant oxygen-containing functional groups(e.g.,C-O,N-Ti-O,-NO_(x),and-OH)and exhibits a high salt removal capacity(33.4 mg·g^(−1)),desalination rate(1.5 mg·g^(−1)·min^(−1)),and remarkable cycling stability(without declining after 100 cycles),which might be ascribed to the synergistic effects of the short ion diffusion path,more active adsorption sites,enhanced conductivity,pseudocapacitive behavior,and protection of the carbon shell *** work provides a confined-growth strategy to develop MXene-derived oxide electrodes for electrochemical desalination.

关键词： capacitive deionization confinement growth MXene-derived N-doped pseudocapacitive behavior

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Highly Selective Electrocatalytic CuEDTA Reduction by MoS_(2) Nanosheets for Efficient Pollutant Removal and Simultaneous Electric Power Output

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Nano-Micro Letters 2023年第11期15卷 61-73页

作者： Hehe Qin Xinru Liu Xiangyun Liu Hongying Zhao Shun Mao College of Environmental Science and Engineering Biomedical Multidisciplinary Innovation Research InstituteShanghai East HospitalState Key Laboratory of Pollution Control and Resource ReuseTongji University1239 Siping RoadShanghai 200092People’s Republic of China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092People’s Republic of China Shanghai Key Lab of Chemical Assessment and Sustainability School of Chemical Science and EngineeringTongji University1239 Siping RoadShanghai 200092People’s Republic of China

Electrocatalytic reduction of ethylenediamine tetraacetic acid copper(CuEDTA),a typical refractory heavy metal complexation pollutant,is an environmental benign method that operates at mild ***,the selective reduction of CuEDTA is still a big challenge in cathodic *** this work,we report a MoS_(2) nanosheet/graphite felt(GF)cathode,which achieves an average Faraday efficiency of 29.6%and specific removal rate(SRR)of 0.042 mol/cm^(2)/h for CuEDTA at−0.65 V vs SCE(saturated calomel electrode),both of which are much higher than those of the commonly reported electrooxidation technology-based removal ***,a proofof-concept CuEDTA/Zn battery with Zn anode and MoS_(2)/GF cathode is demonstrated,which has bifunctions of simultaneous CuEDTA removal and energy *** is one of the pioneer studies on the electrocatalytic reduction of heavy metal complex and CuEDTA/Zn battery,which brings new insights in developing efficient electrocatalytic reduction system for pollution control and energy output.

关键词： Electrocatalytic reduction CuEDTA removal MoS_(2)nanosheet CuEDTA/Zn battery Faraday efficiency

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Nano-Titanium Dioxide Enhanced Dibutyl Phthalate of Neurotoxicity by Enzyme Activity, Gene Expression, and Metabolomics in the Early Life Stage of Zebrafish (Danio Rerio)

SSRN

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SSRN 2023年

作者： Wang, Yingjia Chen, Haiyue Liang, Hongwu Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse School of Ecology and Environment Inner Mongolia University Hohhot010021 China

Dibutyl phthalate (DBP) is a commonly used plasticizer that is frequently detected in water samples due to its widespread use. Titanium dioxide nanoparticles (n-TiO2) have been found to potentially enhance the harmful effects of organic contaminants by increasing their availability in aquatic environments. However, the combined toxic effects of DBP and n-TiO2 on aquatic organisms remain unclear. This study aimed to investigate the neurotoxicity of DBP and n-TiO2 co-exposure during the early life stage of zebrafish. The results of the study revealed that co-exposure to DBP and n-TiO2 led to an increase in deformities and a significant reduction in the active duration of zebrafish larvae. Furthermore, the combined exposure resulted in elevated levels of oxidative stress and altered gene expression related to neurodevelopment and apoptosis. Notably, n-TiO2 exacerbated the oxidative damage and apoptosis induced by DBP exposure alone. Additionally, the 1.0 mg/L DBP and n-TiO2 co-exposure significantly affected the expression of genes associated with neurodevelopment. Moreover, disturbances in amino acid metabolism and interference with lipid metabolism were observed as a result of DBP and n-TiO2 co-exposure. In general, n-TiO2 aggravated the neurotoxicity of DBP in the early life stage of zebrafish by increasing oxidative stress, cell apoptosis, and disrupting amino acid and lipid metabolism. Therefore, it is essential to consider the potential risks caused by DBP and nanomaterials co-existence in the aquatic environment. © 2023, The Authors. All rights reserved.

关键词： Titanium dioxide

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Sustainable Generation of Sulfate Radicals and Decontamination of Micropollutants via Sequential Electrochemistry

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Engineering 2023年第11期30卷 144-152页

作者： Wentian Zheng Shijie You Yuan Yao Nanqi Ren Bin Ding Fang Li Yanbiao Liu College of Environmental Science and Engineering Donghua UniversityShanghai 201620China State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090China MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150080China Innovation Center for Textile Science and Technology College of TextilesDonghua UniversityShanghai 200051China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China

The removal of emerging micropollutants in the aquatic environment remains a global *** routes are often chemically,energetically,and operationally intensive,which decreases their sustainability during ***,we develop an advanced chemical-free strategy for micropollutants decontamination that is solely based on sequential electrochemistry involving ubiquitous sulfate anions in natural and engineered *** can be achieved via a chain reaction initiated by electrocatalytic anodic sulfate(SO_(4)^(2-))oxidation to produce persulfate(S_(2)O_(8)^(2-))and followed by a cathodic persulfate reduction to produce sulfate radicals(SO_(4)^(·-)).These SO_(4)^(·-)are powerful reactive species that enable the unselective degradation of micropollutants and yield SO_(4)^(2-)again in the treated *** proposed flow-through electrochemical system achieves the efficient degradation(100.0%)and total organic carbon removal(65.0%)of aniline under optimized conditions with a single-pass *** also reveal the effectiveness of the proposed system for the degradation of a wide array of emerging micropollutants over a broad pH range and in complex *** work provides the first proof-ofconcept demonstration using ubiquitous sulfate for micropollutants decontamination,making water purification more sustainable and more economical.

关键词： Advanced oxidation Chain reaction Sulfate radical Micropollutants Sequential electrochemistry

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What are the different biomolecules involved in the selective recovery of REEs from mining wastewater using FeNPs synthesized from two plant extracts?

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Science of the Total Environment 2024年 947卷 174571页

作者： Xu, Xinmiao Zhang, Zhenjun Weng, Xiulan Chen, Zuliang Fujian Key Laboratory of Pollution Control and Resource Reuse School of Environmental and Resource Sciences Fujian Normal University Fujian Province Fuzhou350117 China Environmental Contaminants Group Future Industries Institute University of South Australian Mawson LakesSA5095 Australia

Extracting rare earth elements (REEs) from wastewater is crucial for saving the environment, sustainable use of natural resources and economic growth. Reported here is a simple, low cost and one-step synthesis of Fe nanoparticles (FeNPs) based on two plant extracts having the ability to recover REEs. The synthesis of FeNPs using Excoecaria cochinchinensis leaves extract (Ec-FeNPs) exhibited high selectivity for heavy rare earth due to unique biomolecules, achieving separation coefficients (Kd) of 3.16 × 103–4.04 × 106 mL/g and recovery efficiencies ranging from 71.7 to 100 %. Conversely, the synthesis of FeNPs using Pinus massoniana lamb extract (PML-FeNPs) revealed poorer REE recovery efficiencies of 7.2–86.7 %. To understand the differences between Ec-FeNPs and PML-FeNPs in terms of selectivity and efficiency, LC-QTOF-MS served to analyze the biomolecules differences of two plant extracts. In addition, various types of characterization were carried out to identify the different functional groups encapsulated on the surface of FeNPs. These results reveal the source of the difference in the selectivity of Ec-FeNPs and PML-FeNPs for REEs. Furthermore, during DFT calculations, it was found that biomolecules with varying affinities for the surface of FeNPs interact with each other, leading to the formation of structures that exhibit high reactivity towards REEs. Finally, incorporating Spearman correlation analysis demonstrates that the selective removal efficiency of REEs was closely linked to surface complexation, ion exchange, and electrostatic adsorption. Consequently, this work strongly highlights the potential for the practical application of novel adsorbents in this field. © 2024 Elsevier B.V.

关键词： Biomolecules

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Reply to the Letter to the Editor: Nanotechnology Papers with an Agricultural Focus Are Too Frequently Published with a Superficial or Poor Understanding of Basic Plant and Soil Science-A Critical Comment to Recent Papers in ACS Nano

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ACS NANO 2024年第50期18卷 33771-33774页

作者： Wang, Yi Deng, Chaoyi Zhao, Lijuan Dimkpa, Christian O. Elmer, Wade H. Wang, Bofei Sharma, Sudhir Wang, Zhenyu Dhankher, Om Parkash Xing, Baoshan White, Jason C. Department of Analytical Chemistry The Connecticut Agricultural Experiment Station 123 Huntington St. New Haven Connecticut 06511 United States State Key Laboratory of Pollution Control and Resource Reuse School of Environment Nanjing University Nanjing 210023 China Department of Plant Pathology and Ecology The Connecticut Agricultural Experiment Station 123 Huntington St. New Haven Connecticut 06511 United States Computational Sciences The University of Texas at El Paso 500 West Univ. Ave. El Paso Texas 79968 United States Stockbridge School of Agriculture University of Massachusetts Amherst Amherst Massachusetts 01003 United States Institute of Environmental Processes and Pollution Control and School of Environment and Civil Engineering Jiangnan University Wuxi 214122 China

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Prediction of toxicity and identification of key components for complex mixtures containing hormetic components

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Science of the Total Environment 2024年 957卷 177733页

作者： Tao, Meng-Ting Ding, Ting-Ting Wang, Ze-Jun Gu, Zhong-Wei Liu, Shu-Shen Key Laboratory of Yangtze River Water Environment Ministry of Education College of Environmental Science and Engineering Tongji University Shanghai200092 China State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and Engineering Tongji University Shanghai200092 China National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology School of Environmental Science and Engineering Suzhou University of Science and Technology Suzhou215009 China Shanghai Institute of Pollution Control and Ecological Security Shanghai200092 China

Mixtures containing hormetic components are likely to induce hormesis. However, due to the presence of stimulatory effects, predicting the toxicity of such mixtures and identifying their key components face challenges. This study investigated the complex relationship between the stimulatory effects of individual components and their mixtures, focusing on predicting mixture toxicity and identifying key components influencing this toxicity. Sixteen chemicals, commonly found in disinfectants and hand sanitizers, were selected to construct a complex mixture system containing hormetic components. Using Vibrio qinghaiensis sp.-Q67 as an indicator organism, the study employed microplate toxicity tests to collect toxicity data for individual chemicals and their mixtures. The independent action (IA) and back-propagation neural network (BPNN) methods were utilized to predict mixture toxicity, while global sensitivity analysis (GSA) identified key components affecting toxicity. Results revealed that six of the sixteen chemicals exhibited time-dependent hormesis. However, when combined into mixtures, the stimulatory effects observed in individual components tended to diminish or disappear, leading to higher overall toxicity, likely due to synergism. Traditional models like the IA significantly underestimated mixture toxicity, whereas the BPNN model demonstrated superior predictive performance. GSA identified five key components, and changes in the levels of some non-toxic components significantly altered the toxicity of the mixtures. Moreover, increasing the levels of certain key components could either increase or decrease the mixture's toxicity, making the strategy of reducing their concentration to control mixture toxicity ineffective. This study revealed the potential of neural networks in predicting the toxicity of mixtures containing hormetic components and the possible characteristics of the effects of key components on mixture toxicity. © 2024 Elsevier B.V.

关键词： Sensitivity analysis

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Rationally designed ultrathin Ni(OH)_(2)/titanate nanosheet heterostructure for photocatalytic CO_(2) reduction

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Green Chemical Engineering 2022年第3期3卷 240-249页

作者： Wanru Liao Suwei Lu Weihang Chen Shuying Zhu Yuzhou Xia Min-Quan Yang Shijing Liang College of Environmental Science and Engineering Fujian Key Laboratory of Pollution Control&Resource ReuseFujian Normal UniversityFuzhou350007China College of Chemistry Fuzhou UniversityFuzhou350108China Province University Key Laboratory of Green Energy and Environment Catalysis Ningde Normal UniversityNingde352100China National Engineering Research Center of Chemical Fertilizer Catalyst Fuzhou UniversityFuzhou350002China

Dye-sensitized photocatalysis has been extensively studied for photocatalytic solar energy conversion due to the advantage in capturing long-wavelength photons with a high absorption *** rational integration of photosensitizer with semiconductor and cocatalyst to collaboratively operate in one system is highly ***,we fabricate a Ni(OH)_(2)-loaded titanate nanosheet(Ni(OH)_(2)/H_(2)Ti_(6)O_(13))composite for high-performance dye-sensitized photocatalytic CO_(2) *** ultrathin H_(2)Ti_(6)O_(13) nanosheets with negative surface charge provide an excellent support to anchor the dye photosensitizer,while the loaded Ni(OH)2 serves as an adsorbent of CO_(2) and electron sink of *** such,the photoelectrons derived from the[Ru(bpy)3]Cl_(2) sensitizer can be targeted transfer to the Ni(OH)_(2) active sites via the H_(2) Ti_(6)O_(13) nanosheets linker.A high CO production rate of 1801μmol g^(-1) h^(-1) is obtained over the optimal Ni(OH)_(2)/H_(2)Ti_(6)O_(13),while the pure H_(2)Ti_(6)O_(13) shows significantly lower CO_(2) reduction *** work is anticipated to trigger more research attention on the rational design and synthesis of earth-abundant transition metal-based cocatalysts decorated on ultrathin 2D platforms for artificially photocatalytic CO_(2) reduction.

关键词： Titanate nanosheet Ni(OH)_(2) Photosensitizer CO_(2)reduction

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Fortifying casein phosphopeptides and Ca in wheat reduces the As, Cd, and Pb bioavailability based on a mouse model: Calcium and phosphate transporters and gut microbiota

Soil and Environmental Health

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Soil and Environmental Health 2024年第4期2卷

作者： Chen, Sheng-Zhi Lin, Xin-Ying Xue, Rong-Yue Duan, Xu Zhou, Dong-Mei Ma, Lena Q. Li, Hong-Bo State Key Laboratory of Pollution Control and Resource Reuse Jiangsu Key Laboratory of Vehicle Emissions Control School of Environment Nanjing University Nanjing 210023 China Institute of Soil and Water Resources and Environmental Science College of Environmental and Resource Sciences Zhejiang University Hangzhou 310058 China

Reducing the oral bioavailability of metal contaminants including As, Cd, and Pb in foods can protect human health. Studies showed reduced metal bioavailability with elevated Ca and Fe intake;however, the effectiveness of enhancing food Ca and Fe bioavailability remains unknown. Based on a mouse bioassay and using metal accumulation in mouse tissues (kidneys and liver) as the bioavailability endpoint, this study investigated the roles of casein phosphopeptides (CPP, food nutrition fortifier) in lowering the As, Cd, and Pb bioavailability from consuming a metal-contaminated wheat. The CPP amendment at 0.10–0.50% in wheat promoted its Ca bioavailability, causing 33–62% and 59–80% decreases in the gene expression encoding for duodenal Ca and phosphate transporters in mice. This limited transcellular transport of Cd²⁺ and inorganic arsenate via Ca and phosphate transporters respectively, thus leading to 27% and 34% decreases in Cd and As contents in mouse kidneys fed with wheat at 0.50% CPP amendment. In addition, CPP promoted the colonization of Feacalibaculum and Bifidobacterium in mouse gut, likely promoting As excretion in feces by 81–112%. In contrast to As, and Cd, CPP failed to reduce Pb contents in mouse tissue after consuming CPP-amended wheat, probably by elevating wheat-Pb solubility in the intestinal fluid by 48–136%. However, co-amendment of 0.30% CPP and 500 μg g⁻¹ Ca as Ca gluconate lowered the As, Cd, and Pb contents in mouse kidneys by 38–71%. The data indicate that fortifying Ca together with CPP in wheat can reduce human exposure to multi-metals via dietary intake. © 2024 The Author(s)

关键词： Arsenic excretion Arsenic speciation Bioavailability endpoint Dietary intake Gastrointestinal Gene expression Intestinal epithelial cells Kidneys and liver Metal solubility Oral bioavailability

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Direct Lactic Acid Production from Household Food Waste by Lactic Acid Bacteria

SSRN

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SSRN 2022年

作者： Song, Liang Liu, Shiyu Liu, Rui Yang, Donghai Dai, Xiaohu State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and Engineering Tongji University Shanghai200092 China

China is vigorously promoting garbage classification, but the treatment of classified waste, especially household food waste (HFW) remains to be studied. We aimed to analyze the comprehensive properties of classified HFW in Shanghai, then to produce lactic acid (LA), a high value-added platform molecule by inoculating lactic acid bacteria (LAB) directly. The effects of strains, temperature, sterilized or not, initial pH, inoculum size, and substrate concentration on LA production were investigated. The results showed that LA concentration of 30.25 g/L at 37 °C , pH 6.8 could be obtained by inoculating Lactobacillus rhamnosus ATCC 7469 from sterilized HFW. High inoculum size and substrate concentration resulted in high LA concentration, but not high LA yield. In addition, an average LA concentration of 26.8 g/L, LA yield of 0.20 g COD/g TCOD was obtained by repeated batch fermentation for 32 d. © 2022, The Authors. All rights reserved.

关键词： Lactic acid

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