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Assembling S-scheme heterojunction between basic bismuth nitrate and bismuth tungstate with promoting charges’separation for accelerated photocatalytic sulfamethazine degradation

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Journal of Materials Science & Technology 2024年第4期171卷 185-197页

作者： Wenhan Chen Meng Dai Li Xiang Shan Zhao Shuguang Wang Zuoli He Shandong Key Laboratory of Water Pollution Control and Resource Reuse Shandong Key Laboratory of Environmental Processes and HealthSchool of Environmental Science and EngineeringShandong UniversityQingdao 266237China CEDAR Knight Cancer InstituteSchool of MedicineOregon Health and Science UniversityPortlandOR 97201United States Weihai Research Institute of Industrial Technology of Shandong University Shandong UniversityWeihai 264209China

The S-scheme heterojunction has garnered increasing attention due to its remarkable oxidation capacity and efficient separation of photogenerated *** this study,a one-pot glycerol-assisted hydrothermal process was utilized to successfully synthesize S-scheme heterojunction photocatalysts comprising basic bismuth nitrate(BBN)and bismuth tungstate(BWO).Interestingly,the BBN/BWO heterogeneous photo-catalysts exhibited the highest photocatalytic *** optimized product achieved the degradation of sulfamethazine(SMZ)within 1 h,with a kinetic constant(k)value of 0.05818 min^(−1).The degradation process was influenced significantly by·O^(2)−and h^(+)*** determine the degradation pathway of SMZ in the presence of BBN/BWO-0.6,liquid chromatography-mass spectrometry(LC-MS)analysis was performed,which revealed a decrease in the toxicity of intermediates and *** enhanced pho-tocatalytic activity can be attributed to the internal electric field(IEF)of the S-scheme heterojunction between BBN and BWO,effectively promoting the separation of photogenerated *** research presents a viable approach for developing S-scheme heterojunctions in SMZ photodegradation and other environmental applications.

关键词： Photocatalysis S-scheme Heterojunction Bi_(2)WO_(6) Sulfamethazine

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Decomplexation of Cu-1-hydroxyethylidene-1,1-diphosphonic acid by a three-dimensional electrolysis system with activated biochar as particle electrodes

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Journal of Environmental Sciences 2023年第2期124卷 630-643页

作者： Xing Wang Zilong Zhao Hongjie Wang Feng Wang Wenyi Dong School of Civil and Environmental Engineering Harbin Institute of Technology ShenzhenShenzhen 518055China Shenzhen Key Laboratory of Water Resource Utilization and Environmental Pollution Control Shenzhen 518055China State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090China

The feasibility of decomplexation removal of typical contaminants in electroplating wastewater,complexed Cu(Ⅱ)with 1-hydroxyethylidene-1,1-diphosphonic acid(Cu-HEDP),was first performed by a three-dimensional electrode reactor with activated biochar as particle *** the case of 50 mg/L Cu-HEDP,Cu(Ⅱ)removal(90.7%)and PO_(4)^(3−)conversion(34.9%)were achieved under the conditions of electric current 40 mA,initial pH 7,acid-treated almond shell biochar(AASB)addition 20 g/L,and reaction time 180 min,with second-order rate constants of 1.10×10^(−3) and 1.94×10^(−5) min^(−1) *** growing chelating effect between Cu(II)and HEDP and the comprehensive actions of adsorptive accumulation,direct and indirect oxidation given by particle electrodes accounted for the enhanced removal of Cu-HEDP,even though the mineralization of HEDP was mainly dependent on anode *** performance attenuation of AASB particle electrodes was ascribed to the excessive consumption of oxygen-containing functionalities during the reaction,especially acidic carboxylic groups and quinones on particle electrodes,which decreased from 446.74 to 291.48μmol/g,and 377.55 to 247.71μmol/g,*** on the determination of adsorption behavior and indirect electrochemical oxidation mediated by in situ electrogenerated H_(2)O_(2) and reactive oxygen species(e.g.,•OH),a possible removal mechanism of Cu-HEDP by three-dimensional electrolysis was further proposed.

关键词： Cu-HEDP Electrochemical oxidation Particle electrode Reaction characteristics Removal mechanism

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Cobalt-Based Cocatalysts for Photocatalytic CO_(2)Reduction

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Transactions of Tianjin University 2022年第6期28卷 506-532页

作者： Mengqing Li Lijuan Shen Min-Quan Yang College of Environmental and Resource Sciences College of Carbon Neutral Modern IndustryFujian Key Laboratory of Pollution Control and Resource ReuseFujian Normal UniversityFuzhou 350007China

Conversion of carbon dioxide(CO_(2))into valuable chemicals and renewable fuels via photocatalysis represents an eco-friendly route to achieve the goal of carbon *** various types of semiconductor materials have been intensively explored,some severe issues,such as rapid charge recombination and sluggish redox reaction kinetics,*** this regard,cocatalyst modifi cation by trapping charges and boosting surface reactions is one of the most effi cient strategies to improve the effi ciency of semiconductor *** review focuses on recent advances in CO_(2)photoreduction over costeff ective and earth-abundant cobalt(Co)-based cocatalysts,which are competitive candidates of noble metals for practical ***,the functions of Co-based cocatalysts for promoting photocatalytic CO_(2)reduction are briefl y ***,diff erent kinds of Co-based cocatalysts,including cobalt oxides and hydroxides,cobalt nitrides and phosphides,cobalt sulfi des and selenides,Co single-atom,and Co-based metal–organic frameworks(MOFs),are *** underlying mechanisms of these Co-based cocatalysts for facilitating CO_(2)adsorption–activation,boosting charge separation,and modulating intermediate formation are discussed in detail based on experimental characterizations and density functional theory *** addition,the suppression of the competing hydrogen evolution reaction using Co-based cocatalysts to promote the product selectivity of CO_(2)reduction is highlighted in some selected ***,the challenges and future perspectives on constructing more effi cient Co-based cocatalysts for practical applications are proposed.

关键词： Cobalt-based materials Cocatalyst Photocatalysis CO_(2)reduction Solar energy conversion

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Biosynthetic CdS-Thiobacillus thioparus hybrid for solar-driven carbon dioxide fixation

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Nano Research 2023年第4期16卷 4531-4538页

作者： Guangyu Liu Feng Gao Hongwei Zhang Lei Wang Chao Gao Yujie Xiong Hefei National Laboratory for Physical Sciences at the Microscale and School of Chemistry and Materials ScienceUniversity of Science and Technology of ChinaHefei 230026China Institute of Energy Hefei Comprehensive National Science Center350 Shushanhu Rd.Hefei 230031China State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China

Synergistically combining biological whole-cell bacteria with man-made semiconductor materials innovates the way for sustainable solar-driven CO_(2)fixation,showing great promise to break through the bottleneck in traditional chemical photocatalyst ***,most of the biohybrids require uneconomical organic nutrients and anaerobic conditions for the successful cultivation of the bacteria to sustain the CO_(2)fixation,which severely limits their economic viability and applicability for practical ***,we present an inorganic-biological hybrid system composed of obligate autotrophic bacteria Thiobacillus thioparus(***)and CdS nanoparticles(NPs)biologically precipitated on the bacterial surface,which can achieve efficient CO_(2)fixation based entirely on cost-effective inorganic salts and without the restriction of anaerobic *** optimized interface between CdS NPs and *** formed by biological precipitation plays an essential role for *** efficiently receiving photogenerated electrons from CdS NPs and thus changing the autotrophic way from chemoautotroph to *** a result,the *** biohybrid realizes the solar-driven CO_(2)fixation to produce multi-carbon glutamate synthase and biomass under visible-light irradiation with CO_(2)as the only carbon *** work provides significant inspiration for the further exploration of the solar-driven self-replicating biocatalytic system to achieve CO_(2)fixation and conversion.

关键词： biohybrids solar-driven CO_(2)fixation carbon cycle autotrophic bacteria Thiobacillus thioparus cadmium sulfide

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Consuming probiotics protects against cadmium exposure from rice consumption while promotes gut health: An assessment based on a mouse model

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Science of the Total Environment 2025年 958卷 177997页

作者： Xi, Jin-Feng Zhou, Lei Zhang, Yao-Sheng Lin, Xin-Ying Chen, Shan Xue, Rong-Yue Zhou, Dongmei Li, Hong-Bo State Key Laboratory of Pollution Control and Resource Reuse Jiangsu Key Laboratory of Vehicle Emissions Control School of Environment Nanjing University Nanjing210023 China

Cadmium (Cd) in rice constitutes a global health risk. It is crucial to develop strategies that not only reduce the bioavailability of Cd in rice but also confer additional health benefits. One potential approach involves the consumption of probiotics, which can bind Cd in the intestines and enhance gut health. The effects of consuming Akkermansia muciniphila, Bifidobacterium pseudolongum, and Psychrobacter sp. on the bioavailability of Cd in rice and gut health were evaluated using in vivo mouse bioassays and in vitro Cd immobilization assays. In mice fed Cd-contaminated rice without dietary calcium (Ca) and iron (Fe) supplementation (i.e., under conditions of mineral deficiency), the intake of these probiotics insignificantly reduced Cd accumulation in the kidneys and livers, although it did promote Cd excretion via feces. This outcome was primarily due to the competition for Ca and Fe between the probiotics and the host, which led to increased intestinal expression of Ca and Fe transporters under mineral-deficient conditions, thereby mitigating the probiotics' ability to reduce Cd bioavailability. Conversely, in mice fed Cd-contaminated rice with adequate dietary Ca and Fe (i.e., under conditions of mineral adequacy), probiotic intake significantly decreased Cd concentrations in the kidneys by 60.0 %–72.0 % compared to the control group exposed to Cd. Additionally, probiotic consumption fostered the growth of beneficial gut bacteria and strengthened intestinal tight junctions, reducing the inflammatory response in the intestines. These findings suggest that combining probiotics with sufficient Ca and Fe intake can effectively reduce dietary Cd exposure and enhance gut health. © 2024 Elsevier B.V.

关键词： Macroinvertebrates

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Boosting C_(2)H_(6)/C_(2)H_(4) separation via the precise electrostatic modulation of synthetic 1D channel at atomic level

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Nano Research 2024年第11期17卷 10083-10087页

作者： Salamanti Ainiwaner Hengcong Huang Jia-Jia Zheng Fengting Li Xue-Tong Yang Yang-Yang Guo Fangli Yuan Ming-Shui Yao Yifan Gu College of Environmental Science and Engineering State Key Laboratory of Pollution Control and Resource Reuse Tongji University Shanghai 200092 China Laboratory of Theoretical and Computational Nanoscience National Center for Nanoscience and Technology Chinese Academy of Sciences Beijing 100190 China Skate Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China Chinese Academy of Sciences University of Chinese Academy of Sciences Beijing 100049 China

The regulation of gas sorption via simple pore modification is crucial to molecular recognition and chemical ***,a rational pore surface electrostatic modulation in synthetic one dimensioned(1-D)channel is demonstrated to boost ethane/ethylene(C_(2)H_(6)/C_(2)H_(4))selectivity for one-step extraction of C_(2)H_(4) from C_(2)H_(6)/C_(2)H_(4) *** the precise modulation of the surface charge arrangement with negatively charged moieties in the 1-D channel of a metal—organic framework(MOF),enhanced C_(2)H_(6)—host framework and decreased C_(2)H_(4)—host framework electrostatic interactions were obtained,which resulted in an obvious improvement in adsorption ***,the breakthrough separation performance rendered the obtained MOF an efficient adsorbent for C_(2)H_(4) purification from C_(2)H_(6)/C_(2)H_(4) *** combined detail theoretical studies prove that the gas sorption selectivity is remarkably sensitive to framework electrostatic change even in the case of pore surface modification at the atomic *** results are of fundamental importance to the design of porous materials for challenging separation tasks.

关键词： metal—organic framework ethane/ethylene separation ethane—selective MOF adsorption electrostatic modulation

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Efficient water disinfection with ball milled Mg-biochar: The key role of trace Cu

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Chinese Chemical Letters 2024年第1期35卷 412-417页

作者： Yanchao Jin Suixiaochen Chen Peiwen Huang Xiongjian Chen Chun-Yan Lin Li-Ping Li Xiao Chen Rui Ding Jianxi Liu Riyao Chen College of Environmental and Resource Sciences Fujian Normal UniversityFuzhou 350117China School of Materials and Chemical Engineering Minjiang UniversityFuzhou 350108China Research and Development Center for Watershed Environmental Eco-Engineering Beijing Normal UniversityZhuhai 519087China Fujian Key Laboratory of Pollution Control&Resource Reuse Fuzhou 350007China

In this study, magnesium and coconut shell carbon (CSC) were prepared by a ball milled process and used for water disinfection with adsorbing tiny amounts of copper(II). Dissolved oxygen (DO) was reduced to hydrogen peroxide (H_(2)O_(2)) via a two-electron pathway by Mg corrosion. Cu(II) in the wastewater will be enriched on the CSC surface and efficiently catalyzes H2O2 for inactivating E. coli. The results show that E. coli with an initial concentration of approximately 106 CFU/mL was under the detection limit (<4 CFU/mL) within 15 min. All of the Cu(II) could be adsorbed by the composite and catalyzed H2O2 to different active species. The quenching experiments, electron spin resonance (ESR) capture measurements and the UV-vis spectroscopy detection confirmed the present of the hydroxyl radicals (·OH), superoxide radicals (·O_(2)^(-)) and Cu(III). Different with tradition Fenton like process, Cu(III), rather than radicals, played the major role during the Mg-CSC/Cu(II) process. In addition to the cellular membrane damage, most of the bacterial genomic DNA was also be degraded and the bacterial reactivation was avoided. The Mg-CSC/Cu(II) process also showed a satisfied disinfection performance in real wastewater treatment. Overall, this study provides a new strategy for water disinfection.

关键词： Disinfection Magnesium Cu Hydrogen peroxide Biochar

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Occurrence and potential risks of organophosphate esters in agricultural soils:A case study of Fuzhou City,Southeast China

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Journal of Environmental Sciences 2025年第4期150卷 571-581页

作者： Tao Wang Hong Zhang Chong Huang Yujie Ben Hanlin Zhou Hangting Guo Yonghe Han Yong Zhang Ping Tong Fujian Key Laboratory of Pollution Control and Resource Reuse College of Environmental and Resource SciencesFujian Normal UniversityFuzhou 350117China Laboratory for Earth Surface Processes Ministry of EducationCollege of Urban and Environmental SciencesPeking UniversityBeijing 100871China School of Environmental Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Fujian College Association Instrument Analysis Center Fuzhou UniversityFuzhou 350007China

Fifty agricultural soil samples collected from Fuzhou,southeast China,were first investigated for the occurrence,distribution,and potential risks of twelve organophosphate esters(OPEs).The total concentration of OPEs(ΣOPEs)in soil ranged from 1.33 to 96.5 ng/g dry weight(dw),with an average value of 17.1 ng/g ***,halogenated-OPEs were the predominant group with amean level of 9.75 ng/g dw,and tris(1-chloro-2-propyl)phosphate(TCIPP)was the most abundant OPEs,accounting for 51.1%ofΣ*** concentrations of TCIPP andΣOPEs were found to be significantly higher(P<0.05)in soils of urban areas than those in suburban *** addition,the use of agricultural plastic films and total organic carbon had a positive effect on the occurrence of OPE in this *** positive matrix factorization model suggested complex sources of OPEs in agricultural soils from *** ecological risk assessment demonstrated that tricresyl phosphate presented a medium risk to land-based organisms(0.1≤risk quotient<1.0).Nevertheless,the carcinogenic and noncarcinogenic risks for human exposure to OPEs through soil ingestion and dermal absorption were *** findings would facilitate further investigations into the pollution management and risk control of OPEs.

关键词： Organophosphate esters(OPEs) Agricultural soils Spatial distribution Source identification Risk assessment

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Cubic S/N co-doped TiO_(2) with rich oxygen vacancies from Ti-MOFs for efficient elimination of formaldehyde

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Chinese Chemical Letters 2024年第2期35卷 512-515页

作者： Qing Gao Lei Sun Zhihua Wang Jiguang Deng State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical TechnologyBeijing 100029China Beijing Key Laboratory for Green Catalysis and Separation Key Laboratory of Beijing on Regional Air Pollution ControlKey Laboratory of Advanced Functional MaterialsEducation Ministry of ChinaDepartment of Chemical EngineeringBeijing University of TechnologyBeijing 100124China

The cubic S/N co-doped TiO_(2)(TNSx,x is the calcination temperature)photocatalysts with rich oxygen vacancies were obtained by high temperature calcination of sulfur powder and titanium-based MOFs NH_(2)-MIL-125 for the photocatalytic removal of gaseous formaldehyde(a volatile organic compound).Among the obtained catalysts,the presence of oxygen vacancies restricted photogenerated electron and holes recombination.98.00%removal of gaseous formaldehyde in 150 min could be achieved over TNS600 by xenon *** removal efficiency for formaldehyde was well retained for five cycle *** results from PL,TRPL and EIS revealed that TNS600 had the best separation efficiency of photogenerated electrons and holes,and the enhanced charge separation led to a significant increase in photocatalytic *** photocatalytic oxidation mechanism indicated that the ^(•)OH and ^(•)O_(2)−radicals were mainly involved in the efficient elimination of gaseous formaldehyde and were able to mineralize formaldehyde to H_(2)O and CO_(2).

关键词： Metal-organic frameworks Photocatalysis Formaldehyde removal S/N co-doped TiO_(2) Oxygen vacancies

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Selective electroreduction of nitrate to ammonia via NbWO_(6)perovskite nanosheets with oxygen vacancy

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Chinese Chemical Letters 2023年第5期34卷 385-388页

作者： Tao Feng Fengting Li Xiaojun Hu Ying Wang School of Chemical and Environmental Engineering Shanghai Institute of TechnologyShanghai 201418China State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China

Electrocatalytic nitrate reduction to ammonia(NRA)under ambient conditions is significant for carbonneutral synthetic ***,the lack of efficient electrocatalysts with tunable nanostructure for NRA remains a grand ***,Nb WO_(6)nanosheets with oxygen vacancy(NbWO_(6-x))was demonstrated via thermal treatment and exfoliation with NH_(3)selectivity of 86.8%and Faradaic efficiency of85.7%toward NRA.^(1)H nuclear magnetic resonance spectra coupled with^(15)N isotope labeling experiments proved that NH_(3)originated from NO_(3)^-.The function of oxygen vacancy was revealed by computational studies in ***,the reaction mechanism and pathway of NRA could be deduced based on the results of online differential electrochemical mass spectrometry(DEMS).This work provides a selective NH_(3)generation strategy to decarbonize the energy-chemical sector,bridging the gap between batteries and biofuels.

关键词： Nitrate reduction Ammonia generation NbWO_(6-x)nanosheets Oxygen vacancy Adsorption energy

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