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Photo-piezoelectric synergistic degradation of typical volatile organic compounds on BaTiO_(3)

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Chinese chemical Letters 2022年第1期33卷 410-414页

作者： Qin Liu Weina Zhao Zhimin Ao Taicheng An Guangzhou Key Laboratory of environmental Catalysis and Pollution Control Guangdong Key Laboratory of Environmental Catalysis and Health Risk ControlSchool of Environmental Science and EngineeringInstitute of Environmental Health and Pollution ControlGuangdong University of TechnologyGuangzhou 510006China

Explore the photo-piezoelectric synergistic micro-mechanism by density functional theory(DFT)calculations at the electronic and atomic level is *** this work,to understand the synergistic mechanism,atomic and electronic properties of typical piezoelectric and photocatalytic material BaTiO_(3)were initially investigated with different ***,the adsorption of volatile organic compounds(VOCs)on the BaTiO_(3)(001)surface was determined during the piezoelectric *** addition,the relationship between deformation ratio,the electronic structure and adsorption energy was understood in the deformation ratio range of 7%-12%for the optimal catalytic *** results of charge density differences and Born effective charge reveal the synergistic mechanism of piezoelectric *** built-in electric field formed by polarization results in the enhanced separation of charges,which makes the surface charges aggregation,enhancing the adsorption of VOCs,and benefiting the subsequent photocatalytic *** work can provide significant theoretical guidance for the piezoelectric photocatalytic degradation of pollutants with the optimal strain range.

关键词： Photocatalysis Photo-piezoelectric synergistic Polarization Charge separation BaTiO_(3) Volatile organic compounds(VOCs)

17α-Ethinylestradiol removal from water by magnetic ion exchange resin

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Chinese Journal of chemical Engineering 2018年第4期26卷 864-869页

作者： Liang Wang Lu Liu Zhaohui Zhang Bin Zhao Junjing Li Bingjie Dong Nian Liu State Key Laboratory of Separation Membranes and Membrane Processes Tianjin 300387 China department of environmental Engineering Tianjin Polytechnic University Tianjin 300387 China

Magnetic ion exchange(MIEX) resins have received considerable attention in drinking water treatment due to their fast and efficient removal of dissolved organic carbon(DOC). Two types of mechanisms, i.e., ion exchange,reversible and irreversible adsorption, may occur during pollutants removal by MIEX. This work examined the removal mechanism of 17α-Ethinylestradiol(EE2) by MIEX. As one of typical estrogen micro-pollutants,EE2 existed as neutral molecule in natural water, and its charge density was close to zero [(0.00000219 ±0.00000015) meq·(μg EE2)^(-1)] based on the potentiometric titration method. However, the removal of EE2 by MIEX was much higher than that of other micro-pollutants previously reported. Multi-cycle adsorptionregeneration experiments and ion exchange stoichiometry analysis were conducted to elucidate the removal mechanism of EE2 by MIEX resin. The results suggested that the main removal mechanism of EE2 by MIEX was ion exchange instead of reversible micro-pore adsorption. The experimental analysis based on Donnan theory indicated that the internal micro-environment of resin beads was alkaline, in the alkaline environment EE2 would be ionized into negatively charged groups. As a result, ion exchange reaction occurred inside the pore of MIEX resin, and the removal process of EE2 by MIEX was dominated by the ion exchange reaction.

关键词： Magnetic ion exchange resin Non-ionic micro-pollutants Ion exchange 17α-Ethinylestradiol Drinking water treatment

Effective removal of antibiotic resistance genes and potential links with archaeal communities during vacuum-type composting and positive-pressure composting

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Journal of environmental Sciences 2020年第3期32卷 277-286页

作者： Haonan Fan Shanghua Wu John Woodley Guoqiang Zhuang Zhihui Bai Shengjun Xu Xuan Wang Xuliang Zhuang Key Laboratory of environmental Biotechnology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China College of Resources and Environment University of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Agricultural Water Resources Center for Agricultural Resources ResearchInstitute of Genetic and Developmental BiologyChinese Academy of SciencesShijiazhuang 050021China Center for Process Engineering and Technology Department of Chemical and Biochemical EngineeringTechnical University of DenmarkDK-2800 Kgs.LyngbyDenmark

As a major reservoir of antibiotics,animal manure contributes a lot to the augmented environmental pressure of antibiotic resistance genes(ARGs).This might be the first study to explore the effects of different ventilation types on the control of ARGs and to identify the relationships between archaeal communities and ARGs during the composting of dairy *** ARGs were quantified via Real-time qPCR and microbial communities including bacteria and archaea were analyzed by High-throughput sequencing during vacuum-type composting(VTC) and positive-pressure composting(PPC).The total detected ARGs and class I integrase gene(intI1) under VTC were significantly lower than that under PPC during each stage of the composting(p <0.001).The relative abundance of potential human pathogenic bacteria(HPB) which were identified based on sequencing information and correlation analysis decreased by 74.6% and 91.4% at the end of PPC and VTC,*** composition of archaeal communities indicated that methane-producing archaea including Methanobrevibacter,Methanocorpusculum and Methanosphaera were dominant throughout the *** analysis suggested that Methanobrevibacter and Methanocorpusculum were positively correlated with all of the detected *** analysis determined that the possible hosts of ARGs were different under VTC and PPC,and provided new sights about potential links between archaea and *** results showed better performance of VTC in reducing ARGs and potential HPB and demonstrated that some archaea could also be influential hosts of ARGs,and caution the risks of archaea carrying ARGs.

关键词： Antibiotic resistance genes(ARGs) Composting Archaea Human pathogenic bacteria Bacterial communities

Determination of particulate polycyclic aromatic hydrocarbons in ambient air by gas chromatography-mass spectrometry after molecularly imprinted polymer extraction

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Journal of environmental Sciences 2023年第2期124卷 644-654页

作者： Maria Chiara Pietrogrande Giorgia Demaria Mara Russo department of chemical Pharmaceutical and Agraricultural SciencesUniversity of FerraraVia Fossato di Mortara 17/1944121 FerraraItaly

A solid phase extraction procedure(SPE)is described for the quantitative analysis of polycyclic aromatic hydrocarbons(PAHs)in atmospheric particulate matter(PM),as ubiquitous environmental pollutants routinely measured in air qualitymonitoring.A SPE cartridge was used based on a molecular imprinted polymer(MIP-SPE)properly tailored for selective retention of PAHs with 4 and more benzene fused *** performance of the clean-up procedure was evaluated with the specific concern of selective purification towards saturated hydrocarbons,which are the PM components mostly interfering GC analysis of target *** optimized operative conditions,the MIP-SPE provided analyte recovery close to 95%for heavier PAHs,from benzo(α)pyrene to benzo(ghi)perylene,and close to 90%for four benzene rings PAHs,with good reproducibility(RSDs:2.5%-5.9%).Otherwise,C_(17)-C_(32) n-alkanes were nearly completely *** proposed method was critically compared with Solid Phase Micro Extraction(SPME)using a polyacrylate *** methods were successfully applied to the analysis of ambient PM2.5 samples collected at an urban polluted *** the two procedures,the MIP-SPE provided the highest recovery(R%≥93%)for PAHs with 5 and more benzene rings,but lower for lighter *** contrast,SPME showed a mean acceptable R%value(∼80%)for all the investigated PAHs,except for the heaviest PAHs in the most polluted samples(R%:110%-138%),suggesting an incomplete purification from the interfering n-hydrocarbons.

关键词： Polycyclic aromatic hydrocarbons Atmospheric particle matter Molecularly imprinted polymers-solid-phase extraction Solid phase micro extraction GC/MS analysis

Negative inductive effect enhances charge transfer driving in sulfonic acid functionalized graphitic carbon nitride with efficient visible-light photocatalytic performance

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Chinese Journal of Catalysis 2022年第2期43卷 526-535页

作者： Min Zhang Yunfeng Li Wei Chang Wei Zhu Luohong Zhang Renxi Jin Yan Xing Xi’an Key Laboratory of Textile chemical Engineering Auxiliaries College of Environmental and Chemical EngineeringXi’an Polytechnic UniversityXi’an 710000ShaanxiChina department of chemical and Biomolecular Engineering University of Notre DameIndiana 46556USA Jilin Provincial Key Laboratory of Advanced Energy Materials Department of ChemistryNortheast Normal UniversityChangchun 130024JilinChina

Efficient photogenerated carrier migration/separation plays a critical role in increasing the photocatalytic performance of g-C_(3)N_(4).Herein,sulfonic acid group-functionalized g-C_(3)N_(4)(SACN)was synthesized and then synchronously strengthened by a facile-solid-state thermal reaction of g-C_(3)N_(4)and sulfamic *** a solid strong acid,sulfamic acid can be used to achieve acid etching on the surface of g-C_(3)N_(4)with the assistance of thermal treatment,leading to an enlarged specific surface area and increased surface catalytic reaction *** importantly,our experiments and density functional theory calculations indicate that the driving force generated by the negative inductive effect of sulfonic acid groups significantly improves the charge transfer dynamics and effectively inhibits their ***,the negative inductive effect can induce charge redistribution,which reduces the conduction band potential of g-C_(3)N_(4)to enhance the reduction ability of photo-induced *** a result,the SACN-400 sample showed excellent photocatalytic performance in H2 generation with an apparent quantum efficiency of 11.03%at 420±15 nm,as well as an efficient photodegradation rate for organic pollutants.

关键词： Photocatalysis g-C_(3)N_(4) Negative inductive effect Sulfamic acid Charge transfer

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Background levels of OCPs,PCBs,and PAHs in soils from the eastern Pamirs,China,an alpine region influenced by westerly atmospheric transport

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Journal of environmental Sciences 2022年第5期34卷 453-464页

作者： Yang Ding Huanfang Huang Wei Chen Yuan Zhang Wenwen Chen Xinli Xing Shihua Qi State Key Laboratory of Biogeology and environmental Geology China University of GeosciencesWuhan 430074China School of environmental Studies China University of GeosciencesWuhan 430074China department of Physical and environmental Sciences University of Toronto ScarboroughTorontoONM1C 1A4Canada State Key Laboratory of Organic Geochemistry Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China College of environmental Science and Engineering Guilin University of TechnologyGuilin 541004China

Long-range atmospheric transport(LRAT)plays a crucial role in the occurrence of persis-tent organic pollutants(POPs)in remote *** studying the LRAT of POPs on the Tibetan Plateau,westerly-controlled regions have received insufficient attention compared with regions influenced by the Indian monsoon or air flow from East *** investigated the residual levels of POPs in soils from the eastern Pamirs and used air backward trajectory analysis to elucidate the influence of potential source regions via *** pes-ticides(OCPs,mainly comprising DDTs,HCHs,and HCB),polychlorinated biphenyls(PCBs,mainly comprising penta-and hexa-CBs),and polycyclic aromatic hydrocarbons(PAHs,mainly comprising three-and four-ring)were detected at low concentrations of 40-1000,pesticides in the Tarim Basin,and(3)continuous *** Asia and the Tarim Basin were major potential source regions of POPs reaching the eastern Pamirs via *** use of technical HCH or lindane and technical DDT in potential source regions may contribute to the accumulation of HCHs and DDTs in the eastern Pamirs,*** sources seem to play a more important role in the occurrence of PAHs in the study *** being under the control of less contaminated westerly air flow,the eastern Pamirs are more pristine than the core of the Tibetan Plateau where the Indian and East Asia monsoons deliver contaminants from highly industrialized areas in East China and India.

关键词： Persistent organic pollutants Long-range atmospheric transport Westerlies Tibetan Plateau Remote regions

environmental toxicant-induced maladaptive mitochondrial changes:A potential unifying mechanism in fatty liver disease?

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Acta Pharmaceutica Sinica B 2021年第12期11卷 3756-3767页

作者： Regina D.Schnegelberger Anna L.Lang Gavin E.Arteel Juliane I.Beier department of Pharmacology&chemical Biology University of PittsburghPittsburghPA 15213USA department of Neurology University of Miami Miller School of MedicineMiamiFL 33136USA department of Medicine Division of GastroenterologyHepatology&NutritionUniversity of PittsburghPittsburghPA 15213USA Pittsburgh Liver Research Center University of PittsburghPittsburghPA 15213USA department of environmental&Occupational Health University of PittsburghPittsburghPA 15213USA

Occupational and environmental exposures to industrial chemicals are well known to cause hepatotoxicity and liver ***,despite extensive evidence showing that exposure can lead to disease,current research approaches and regulatory policies fail to address the possibility that subtle changes caused by low level exposure to chemicals may also enhance preexisting *** recent years,the conceptual understanding of the contribution of environmental chemicals to liver disease has progressed *** are often target of toxicity of environmental toxicants resulting in multisystem disorders involving different cells,tissues,and ***,we review persistent maladaptive changes to mitochondria in response to environmental toxicant exposure as a mechanism of *** better understanding of the mechanism(s) and risk factors that mediate the initiation and progression of toxicant-induced liver disease,rational targeted therapy can be developed to better predict risk,as well as to treat or prevent this disease.

关键词： Organochlorines Metals Persistent organic pollutants TASH Liver disease Hepatotoxicity Mitochondrial maladaptation Mitohormesis

Interaction of DNA with aromatic hydrocarbons fraction in atmospheric particulates of Xigu District of Lanzhou,China

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Journal of environmental Sciences 2007年第8期19卷 948-954页

作者： GAO Hong MA Min-quan ZHOU Lei JIA Run-ping CHEN Xing-guo HU Zhi-de Key Laboratory of Western China＇s environmental Systems （Ministry of Education） College of Earth and Environment Sciences Lanzhou University Lanzhou 730000 China. Lanzhou environmental Monitoring Station Lanzhou 730000 China department of Chemistry Lanzhou University. Lanzhou 730000 China

Voluminously epidemiological studies show that the relationships exist between the air pollution and human health and cancer. Aromatic hydrocarbons （AHs） in air form a large class of organic pollutants, which are widely in environment and many of them are known to be carcinogenic and/or mutagenic and contribute to ambient air pollution. In the past decades, bioassays mainly have been used to evaluate the toxicity of chemical mixtures in atmospheric particulates or aqueous environment. However, it is well known that the covalent complexes formed by carcinogens with DNA may be exert negative results in bioassay. So the main aim of this paper is to develop an evaluation method of toxicity effects of chemical mixtures in atmospheric particulates from chemical standpoint. In this study, the in vitro interaction of the AHs with DNA was investigated by absorption, fluorescence and resonance light scattering （RLS） spectroscopic techniques. The results showed that the AHs in the atmospheric particulates could combine with calf thymus DNA （ctDNA） and herring sperm DNA （hsDNA） without being activated or metabolized by organism, respectively. Intercalation may be present in the mechanism of interaction. The binding constants of the AHs with ctDNA and hsDNA were 2.5x102 and 2.0x103, respectively, which indicated that the interaction of the AHs with hsDNA is stronger than that with ctDNA. In addition, the relationships of dose-effect between the total mole concentration of chemical components and the ability of binding ctDNA and hsDNA were confirmed. This research made it possible to study the toxicity effects of chemical mixtures in atmospheric particulates by chemical method. It is believed that the composition and contents of unknown AHs and the interaction of DNA with AHs in atmospheric particulates of Xigu District of Lanzhou City, China are first reported in the past twenty years.

关键词： atmospheric particulates aromatic hydrocarbons fraction interaction with DNA

MXene:From synthesis to environment remediation

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Chinese Journal of chemical Engineering 2023年第9期61卷 260-280页

作者： Ali Nikkhah Hasan Nikkhah Hadis langari Alireza Nouri Abdul Wahab Mohammad Ang Wei Lun Ng law Yong Rosiah Rohani Ebrahim Mahmoudi department of chemical and Process Engineering Faculty of Engineering and Built EnvironmentUniversiti Kebangsaan MalaysiaBangi 43600Malaysia department of Mechanical and Aerospace Engineering University at BuffaloBuffaloUSA department of chemical and Biomolecular Engineering University of ConnecticutStorrsUSA department of Chemistry and Medicinal Chemistry University at BuffaloBuffaloUSA chemical and Water Desalination Engineering Program College of EngineeringUniversity of SharjahSharjah 27272United Arab Emirates Lee Kong Chian Faculty of Engineering and Science Universiti Tunku Abdul RahmanJalan Sungai LongBandar Sungai LongKajangSelangorMalaysia

A new burgeoning family of two-dimensional(2D)transition metal carbides/nitrides,better known as MXenes,have received extensive attention because of their distinct properties,such as metallic conductivity,good hydrophilicity,large surface area,good mechanical stability,and *** 40 different MXenes have been synthesized,and dozens more structures and properties have been theoretically ***,the recent progress in MXenes development is not well covered in chronological order based on different *** review article focuses on emerging synthesis methods,the properties of MXenes,and mainly the applications of MXenes and MXene-based material family in environmental remediation,a comprehensive review of gaseous and aqueous pollutants treatment.

关键词： MXene 2D materials Wastewater treatment CO_(2)capture Adsorption Photodegradation