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SSRN 2023年

作者： Wang, Yaoyao Chen, Wanli Gu, Xueyuan Zhou, Dongmei State Key Laboratory of Pollution Control and Resource Reuse School of Environment Nanjing University Nanjing210023 China

Accurately applying engineering nanoparticles (NPs) in farmland stress management is important for sustainable agriculture and food safety. The protective effects of four engineered NPs (SiO2, CeO2, ZnO, and S) on pakchoi under arsenic (As) stress were investigated using pot experiments. The results showed that CeO2, SiO2, and S NPs resulted in biomass reduction, while ZnO NPs (100 and 500 mg kg-1) significantly increased shoot height. Although 500 mg kg-1 S NPs rapidly dissolved to release SO42-, reducing soil pH and pore water As content and further reducing shoot As content by 21.6%, the growth phenotype was inferior to that obtained with 100 mg kg-1 ZnO NPs, probably due to acid damage. The addition of 100 mg kg-1 ZnO NPs not only significantly reduced the total As content in pakchoi by 23.9% compared to the As-alone treatment but also enhanced plant antioxidative activity by increasing superoxide dismutase and peroxidase activities and decreasing malondialdehyde content. ZnO NPs in soil might inhibit As uptake by roots by increasing the dissolved organic carbon (DOC) in pore water. According to the DLVO theory, ZnO NPs were the most effective in preventing As in pore water from entering plant roots due to their smaller hydrated particle size. Redundancy analysis further confirmed that DOC and SO42- were the primary factors controlling plant As uptake under the ZnO NP and S NP treatments, respectively. Our findings provide fundamental information for the safe and sustainable application of NP-conjugated agrochemicals. © 2023, The Authors. All rights reserved.

关键词： Soils

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Alcohol consumption promotes arsenic absorption but reduces tissue arsenic accumulation in mice

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Eco-Environment & Health 2023年第3期2卷 107-116页

作者： Hongyu Wang Albert L.Juhasz Yaosheng Zhang Lizhu Zhang Lena Q.Ma Dongmei Zhou Hongbo Li State Key Laboratory of Pollution Control and Resource Reuse Jiangsu Key Laboratory of Vehicle Emissions ControlSchool of the EnvironmentNanjing UniversityNanjing 210023China Future Industries Institute University of South AustraliaMawson LakesSouth Australia 5095Australia Department of Nanxin Pharm Nanjing 210000China Institute of Soil and Water Resources and Environmental Science College of Environmental and Resource SciencesZhejiang UniversityHangzhou 310058China

Alcohol consumption alters gut microflora and damages intestinal tight junction barriers,which may affect arsenic(As)oral *** this study,mice were exposed to arsenate in the diet(6μg/g)over a 3-week period and gavaged daily with Chinese liquor(0.05 or 0.10 mL per mouse per day).Following ingestion,78.0%and 72.9%of the total As intake was absorbed and excreted via urine when co-exposed with liquor at daily doses of 0.05 or 0.10 mL,significantly greater than when As was supplied alone(44.7%).Alcohol co-exposure significantly altered gut microbiota but did not significantly alter As biotransformation in the intestinal tract or *** lower relative mRNA expression was observed for genes encoding for tight junctions in the ileum of liquor co-exposed mice,contributing to greater As bioavailability attributable to enhanced As absorption via the intestinal paracellular ***,As concentration in the liver,kidney,and intestinal tissue of liquortreated mice was decreased by 24.4%-42.6%,27.5%-38.1%,and 28.1%-48.9%compared to control *** was likely due to greater renal glomerular filtration rate induced by alcohol,as suggested by significantly lower expression of genes encoding for renal tight *** addition,in mice gavaged daily with 0.05 mL liquor,the serum antidiuretic hormone level was significantly lower than control mice(2.83±0.59 vs.5.40±1.10 pg/mL),suggesting the diuretic function of alcohol consumption,which may facilitate As elimination via *** results highlight that alcohol consumption has a significant impact on the bioavailability and accumulation of As.

关键词： Arsenic speciation Alcohol consumption Oral bioavailability Tissue accumulation Tight junctions

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Trophic transfer of carbon-14 from algae to zebrafish leads to its blending in biomolecules and the dysregulation of metabolism via isotope effect

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National Science Review 2025年第1期 155-166页

作者： Shipeng Dong Renquan Deng Hang Zeng Pengfei Xue Sijie Lin Dongmei Zhou Liang Mao State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Chemistry and Biomedicine Innovation Center Nanjing University College of Environmental Science & Engineering State Key Laboratory of Pollution Control and Resource Reuse Tongji University

Carbon-14（C-14） has been a major contributor to the human radioactive exposure dose,as it is released into the environment from the nuclear industry in larger quantities compared to other *** most abundant nuclide enters the biosphere as organically bound C-14（OBC-14）,posing a potential threat to public ***,it remains unknown how this relatively low radiotoxic nuclide induces health risks via chemical effects,such as isotope *** establishing a trophic transfer model involving algae（Scenedesmus obliquus）,daphnia（Daphnia magna） and zebrafish（Danio rerio）,we demonstrate that rapid incorporation and transformation of inorganic C-14 by algae into OB C-14 facilitates the blending of C-14 into the biomolecules of *** find that internalized C-14 is persistently retained in the brain of zebrafish,affecting DNA methylation and causing alterations in *** isotope tracing metabolomics with C-14 exposure further reveals the involvement of C-14 in various critical metabolic pathways,including one-carbon metabolism and nucleotide *** thus characterize the kinetic isotope effects for12C/14C in the key reactions of these metabolic pathways through kinetic experiments and density functional theory computations,showing that the isotopic substitution of carbon in bio chemicals regulates metabolism by disrupting reaction ratios via isotope *** results suggest that inorganic C-14discharged by the nuclear industry can be biotransformed into OBC-14 to impact metabolism via isotope effects,providing new insights into understanding the health risk of C-14,which is traditionally considered as a low radiotoxic nuclide.

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Fe/Co-modified Enteromorpha bio-hydrochar enhanced anaerobic digestion of chicken manure with sulfadimethazine:focusing on synergistic mechanism and microbial community succession

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Biochar 2024年第1期6卷 1725-1741页

作者： Yutong Liu Ziyu Peng Zhengguang Hu Hanhan Xue Junpeng Qiao Qigui Niu School of Environmental Science and Engineering China-America CRC for Environment&Health of Shandong ProvinceShandong University72#Jimo BinhaiRoadQingdao 266237ShandongChina. Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse Shandong UniversityQingdao 266237ShandongChina. Shandong Key Laboratory of Environmental Processes and Health School of Environmental Science and EngineeringShandong UniversityQingdao 266237China. Qingdao Key Laboratory of Marine Pollutant Prevention Shandong UniversityQingdao 266237ShandongChina.

Residual antibiotics in chicken manure may interfere with the stability of anaerobic digestion(AD)and inhibit resource utilization *** this study,we aimed to enhance chicken manure bio-methanation in AD with highconcentration of sulfamethazine(SMZ)by adding metal(Fe,Co)-modified Enteromorpha-based hydrochar(Co-HC,Fe-HC).The results showed that Fe-HC and Co-HC increased the degree of acidogenesis by 1.25 times and 1.58 times,*** maximum protein concentration in EPS was increased by 47.64%and 72.5%after adding Fe-HC and ***,only Co-HC demonstrated notable improvements in both methane production and SMZ removal *** analysis showed that Co-HC possessed a richer variety of oxygen and nitrogen functional groups,along with superior electron exchange capabilities compared to ***,microbiological assessments revealed that Co-HC enriched syntrophic bacteria(such as Syntrophomonas and Mesotoga),facilitating direct interspecies electron transfer(DIET)and subsequently enhancing biomethane *** abundance of genes involved in electron transfer increased significantly with Co-HC,with a maximum increase of 75.86%in Co1.5-HC ***,the elimination of antibiotic resistance genes(sul1,sul2)increased by 65.66%in the Co1.5-HC *** study offers a theoretical foundation and empirical support for the synergistic improvement of livestock and poultry manure containing high antibiotic concentrations,thereby helping to overcome challenges posed by recalcitrant substances.

关键词： Chicken manure digestion Enteromorpha-based hydrochar Metal(Fe or Co)modification Synergistic mechanism Sulfonamide antibiotics

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Photodegradation of Hexafluoropropylene Oxide Trimer Acid under UV Irradiation

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Journal of Environmental Sciences 2020年第11期32卷 132-140页

作者： Chen Li Na Mi Zhanghao Chen Cheng Gu State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210023China

As a novel alternative to traditional perfluoroalkyl substances(PFASs),including perfluorooctanoic acid(PFOA)and perfluorooctane sulfonate(PFOS),hexafluoroproplyene oxide trimer acid(HFPO-TA)has been detected worldwide in surface ***,recent researches have demonstrated that HFPO-TA has stronger bioaccumulation potential and higher hepatotoxicity than *** treat these contaminants *** and PFOS,some photochemical techniques by adding exogenous substances had been ***,there is still no report for the behavior of HFPO-TA itself under direct UV *** current study investigated the photo-transformation of HFPO-TA under UV irradiation in aqueous *** 72 hr photoreaction,75%degradation ratio and 25%defluorination ratio were achieved under ambient *** active species,i.e.,hydrated electrons and active hydrogen atoms,generated from water splitting played dominant roles in degradation of HFPO-TA,which was confirmed by different effects of reaction atmospheres and quenching experiments.A possible degradation pathway was proposed based on the products identification and theoretical *** general,HFPO-TA would be transformed into shorter-chain PFASs,including hexafluoropropylene oxide dimer acid(HFPODA),perfluoropropionic acid(PFA)and trifluoroacetate(TFA).This research provides basic information for HFPO-TA photodegradation process and is essential to develop novel remediation techniques for HFPO-TA and other alternatives with similar structures.

关键词： HFPO-TA Photo-reductive Hydrated electrons Active hydrogen atoms Degradation pathway

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冻融及耦合酸化作用下土壤中重金属的浸出性及其机制解析

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Journal of Central South University 2024年第4期31卷 1197-1206页

作者：付田雨李捷付融冰 State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China Institute of Environmental and Municipal Engineering Qingdao University of TechnologyQingdao 266033China

冻融与不同pH溶液的耦合作用下土壤中重金属浸出行为尚缺乏研究。本研究采用TCLP测试评估了冻融及耦合酸化处理前后土壤中重金属的浸出毒性,并采用孔隙(颗粒)与裂隙图像识别与分析系统(PCAS)和地球化学模拟软件(PHREEQC)分别探究土壤矿... 详细信息

冻融与不同pH溶液的耦合作用下土壤中重金属浸出行为尚缺乏研究。本研究采用TCLP测试评估了冻融及耦合酸化处理前后土壤中重金属的浸出毒性,并采用孔隙(颗粒)与裂隙图像识别与分析系统(PCAS)和地球化学模拟软件(PHREEQC)分别探究土壤矿物颗粒的微观结构和矿物学演化特征。结果表明,经过30次冻融循环后,As、Cd、Cu、Mn、Pb和Zn的最大浸出浓度分别为0.22 mg/L、0.61 mg/L、2.46 mg/L、3.08 mg/L、29.36 mg/L和8.07 mg/L。在冻融和酸化的耦合作用下,土壤颗粒的孔隙度增加了4.79%。孔隙和裂缝的演化所引起的颗粒结构破坏证实了这一结果。在冻融作用下,土壤颗粒的各向异性增加,而在冻融与酸化的耦合作用下,土壤颗粒的各向异性降低。SEM-EDS、PCAS量化和PHREEQC模拟的结果表明,重金属的释放机制不仅与矿物颗粒的微观结构演化特征有关,还受质子腐蚀以及矿物的溶解和沉淀的影响。这些结果将为季节性冻土地区污染场地土壤修复评价提供重要参考。

关键词：污染土壤重金属浸出性冻融循环酸化孔隙(颗粒)与裂隙图像识别与分析系统(PCAS) PHREEQC软件

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Research on Cb-Ce Co-Doped Ti4o7 Electrocatalytic Oxidation of Tetracycline-Based Antibiotics

SSRN

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SSRN 2023年

作者： Chen, Junxia He, Xinyi Lei, Chongtian Li, Weigang Yang, Zhenzhen Zhou, Qing State Key Laboratory of Pollution Control and Resource Reuse School of Environment Nanjing University Nanjing210023 China

Elemental doping is a promising way for enhancing the electrocatalytic activity of metal oxides. Herein, we fabricate Ti/ Ti4O7-CB-Ce anode materials by the modification means of CB and Ce co-doped Ti4O7, and this shift effectively improve the interfacial charge transfer rate of Ti4O7 and •OH yield in the electrocatalytic process. Remarkably, the Ti4O7-CB-Ce anode exhibits excellent efficiency of minocycline (MNC) wastewater treatment (100 % removal within 20 minutes) and its cycling stability is comparable to BDD electrode. Meanwhile, it’s discovered that Ti/ Ti4O7-CB-Ce anodes can effectively improve the biochemical properties of the non-biodegradable pharmaceutical wastewater (B/C values from 0.25 to 0.44) and significantly reduce the toxicity of the wastewater (luminescent bacteria inhibition rate from 100 % to 26.6 %). This work paves an effective strategy for designing superior metal oxides electrocatalysts. © 2023, The Authors. All rights reserved.

关键词： Anodes

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Unleashing the Power of Acetylacetone: Effective control of Harmful Cyanobacterial Blooms with Ecological Safety

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SSRN 2023年

作者： Peng, Peng Zhou, Lang Yilimulati, Mihebai Zhang, Shujuan State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing210023 China

Harmful algal blooms resulting from eutrophication pose a severe threat to human health. Acetylacetone (AA) has emerged as a potential chemical for combatting cyanobacterial blooms, but its practical application remains limited. In this study, we conducted a 42-day evaluation of AA's effectiveness in controlling blooms in natural water, with a focus on the interplay between ecological community structure, organism functional traits, and water quality. At a concentration of 0.2 mM, AA effectively suppressed the growth of Cyanobacteriia, Bacteroidia, and Alphaproteobacteria, while promoting the abundance of Gammaproteobacteria and Actinobacteria. Notably, AA induced disruptions in two photosynthesis and two biosynthesis pathways, while simultaneously enriching eight xenobiotics biodegradation and metabolism pathways. This enrichment facilitated the reduction of organic pollutants and supported improved water quality. Importantly, AA treatment significantly decreased the abundance of two macrolide-related antibiotic resistance genes. Overall, our findings establish AA as an efficient and durable algicide with favorable ecological safety. Moreover, this work contributes to the development of effective strategies for maintaining and restoring the health and resilience of aquatic ecosystems impacted by harmful algal blooms. © 2023, The Authors. All rights reserved.

关键词： Water quality

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Systematic control technologies for gaseous pollutants from non-ferrous metallurgy

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Journal of Environmental Sciences 2023年第1期123卷 65-82页

作者： Hui Liu Fenghua Shen Qingzhu Li Minneng Wen Hongliang Zhang Linhua Jiang Chenghang Zheng Yan Liu Tao Liu Liyuan Chai School of Metallurgy and Environment Central South UniversityChangsha 410083China Chinese National Engineering Research Center for Control&Treatment of Heavy Metal Pollution Changsha 410083China State Key Joint Laboratory of Environmental Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China College of Environmental Science and Engineering Tongji UniversityShanghai 200092China State Key Lab of Clean Energy Utilization State Environmental Protection Engineering Center for Coal-Fired Air Pollution ControlZhejiang UniversityHangzhou 310027China Key Laboratory of Ecological Metallurgy of Multi-metal Intergrown Ores of Ministry of Education School of MetallurgyNortheastern UniversityShenyang 110819China School of Resource and Environmental Engineering Wuhan University of Science and TechnologyWuhan 430081China

Air pollutant emissions represent a critical challenge in the green development of the non-ferrous metallurgy *** work studied the emission characteristics,formation mechanisms,phase transformation and separation of typical air pollutants,such as heavy metal particles,mercury,sulfur oxides and fluoride,during non-ferrous smelting.A series of purification technologies,including optimization of the furnace throat and hightemperature discharge,were developed to collaboratively control and recover fine particles from the flue gas of heavy metal smelting processes,including copper,lead and *** improvements have been realized in wet scrubbing technology for removing mercury,fluoride and SO_(2)from flue ***-liquid sulfidation technology by applying H_(2)S was invented to recycle the acid scrubbing wastewater more efficiently and in an eco-friendly *** on digital technology,a source reduction method was designed for sulfur and fluoride control during the whole aluminum electrolysis *** desulfurization technologies were developed for catalytic reduction of the sulfur content in petroleum coke at low temperature and catalytic reduction of SO_(2)to elemental *** work has established the technology for coupling multi-pollutant control and resource recovery from the flue gas from non-ferrous metallurgy,which provides the scientific theoretical basis and application technology for the treatment of air pollutants in the non-ferrous metallurgy industry.

关键词： Non-ferrous smelting Gaseous pollutant Flue gas purification Acid wastewater Heavy metal

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3D-cavity-confined CsPbBr_(3)quantum dots for visible-light-driven photocatalytic c(sp^(3))-H bond activation

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Carbon Energy 2024年第11期6卷 59-68页

作者： Yu‐Jie Gao Handong Jin Daniel A.Esteban Bo Weng Rafikul A.Saha Min‐Quan Yang Sara Bals Julian A.Steele Haowei Huang Maarten B.J.Roeffaers Centre for Membrane Separations AdsorptionCatalysis and Spectroscopy for Sustainable Solutions(cMACS)KU LeuvenLeuvenBelgium Department of Chemistry KU LeuvenLeuvenBelgium Electron Microscopy for Materials Science(EMAT) University of AntwerpAntwerpenBelgium Fujian Key Laboratory of Pollution Control and Resource Reuse College of Environmental and Resource SciencesCollege of Carbon NeutralModern IndustryFujian Normal UniversityFuzhouChina Australian Institute for Bioengineering and Nanotechnology The University of QueenslandBrisbaneQueenslandAustralias School of Mathematics and Physics The University of QueenslandBrisbaneQueenslandAustralia.

Metal halide perovskite(MHP)quantum dots(QDs)offer immense potentialfor several areas of photonics research due to their easy and low-costfabrication and excellent optoelectronic ***,practicalapplications of MHP QDs are limited by their poor stability and,in particular,their tendency to ***,we develop a two-step double-solventstrategy to grow and confine CsPbBr_(3)QDs within the three-dimensional(3D)cavities of a mesoporous SBA-16 silica scaffold(CsPbBr_(3)@SBA-16).Strongconfinement and separation of the MHP QDs lead to a relatively uniform sizedistribution,narrow luminescence,and good ambient stability over 2 *** addition,the CsPbBr_(3)@SBA-16 presents a high activity and stability forvisible-light-driven photocatalytic toluene C(sp^(3))-H bond activation toproduce benzaldehyde with~730 umolg^(-1)h^(-l) yield rate and ***,the structural stability of CsPbBr_(3)@SBA-16QDs issuperior to that of both pure CsPbBr3 QDs and those confined in MCM-41with 1D channels.

关键词： 3D cavity silica C(sp^(3))-H bond activation perovskite quantum dots photocatalysis stability

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