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Solvothermal fabrication of Bi_(2)MoO_(6) nanocrystals with tunable oxygen vacancies and excellent photocatalytic oxidation performance in quinoline production and antibiotics degradation

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Chinese Journal of Catalysis 2022年第2期43卷 472-484页

作者： Zhen Liu Jian Tian Changlin Yu Qizhe Fan Xingqiang Liu School of Chemical Engineering School of Environmental Science and EngineeringMaoming BranchGuangdong Laboratory for Lingnan Modern AgricultureGuangdong University of Petrochemical TechnologyMaoming 525000GuangdongChina School of Science State Key Lab of Urban Water Resource and EnvironmentHarbin Institute of Technology(Shenzhen)Shenzhen 518055GuangdongChina School of Environmental Science and Engineering Key Laboratory of Estuarine Ecological Security and Environmental HealthXiamen University Tan Kah Kee CollegeZhangzhou 363105FujianChina

Novel Bi_(2)MoO_(6) nanocrystals with tunable oxygen vacancies have been developed via a facile low-cost approach with the assistance of a glyoxal reductant under solvothermal *** the introduction of oxygen vacancies,the optical absorption of Bi_(2)MoO_(6) is extended and its bandgap *** vacancies not only lead to the appearance of a defect band level in the forbidden band but can also result in a minor up-shift of the valence band maximum,promoting the mobility of photogenerated ***,oxygen vacancies can act as electron acceptors,temporarily capturing electrons excited by light and reducing the recombination of electrons and *** the same time,oxygen vacancies help to capture oxygen,which reacts with the captured photogenerated electrons to generate more superoxide radicals(·O_(2)-)to participate in the reaction,thereby significantly promoting the redox performance of the *** Bi_(2)MoO_(6) containing these oxygen vacancies(OVBMO),excellent photocatalytic performance has been obtained for the oxidation of 1,2,3,4-tetrahydroquinoline to produce quinoline and cause antibiotic *** reaction mechanism of the oxidation of 1,2,3,4-tetrahydroquinoline to quinoline over the OVBMO materials is elucidated in terms of heterogeneous *** a radical pathway.

关键词： Bi_(2)MoO_(6)nanocrystals Oxygen vacancies Photocatalytic oxidation performance Quinoline production antibiotics degradation

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A nonradical oxidation process initiated by Ti-peroxo complex showed high specificity toward the degradation of tetracycline antibiotics

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Chinese Chemical Letters 2024年第5期35卷 366-370页

作者： Jian Peng Yue Jiang Shuangyu Wu Yanran Cheng Jingyu Liang Yixin Wang Zhuo Li Sijie Lin College of Environmental Science and Engineering Biomedical Multidisciplinary Innovation Research InstituteShanghai East HospitalTongji UniversityShanghai 200092China Key Laboratory of Yangtze River Water Environment Shanghai Institute of Pollution Control and Ecological SecurityTongji UniversityShanghai 200092China

Nonradical oxidation has received wide attention in advanced oxidation processes for environmental *** the relationship between material characteristics and their ability to initiate nonradical oxidation processes is the key to better material design and ***,a novel titanium-based metal-organic framework MIL-125-Ti/H_(2)O_(2) system was established to show a highly selective degradation efficacy toward tetracycline ***-125-Ti with the abundance of TiO6 octahedra units was found to effectively activate H_(2)O_(2) under dark conditions by forming an oxidative Ti-peroxo *** presence of the Ti-peroxo complex,confirmed by UV-visible spectrophotometer,fourier transform infrared spectroscopy,and X-ray photoelectron spectroscopy characterizations,showed superior degradation(>95%removal rate)of oxytetracycline hydrochloride(OTC),doxycycline hydrochloride,chlortetracycline hydrochloride,and *** functional theory calculations were performed to assist the elucidation on the mechanism of H_(2)O_(2) activation and antibiotics *** MIL-125-Ti/H_(2)O_(2) system was highly resistant to halogens and background organics,and could well maintain its original catalytic activity in actual water *** retained the ability to degrade 75%of OTC within ten test *** study provides new insight into the nonradical oxidation process initiated by the unique Ti-peroxo complex of Ti-based MOF.

关键词： Nonradical oxidation Metal-organic frameworks Advanced oxidation process Ti-peroxo complex antibiotics degradation

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Recent advances in H_(2)O_(2)-based advanced oxidation processes for removal of antibiotics from wastewater

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Chinese Chemical Letters 2023年第3期34卷 39-48页

作者： Xuechun Wang Jiana Jing Minghua Zhou Raf Dewil Key Laboratory of Pollution Process and Environmental Criteria Ministry of EducationCollege of Environmental Science and EngineeringNankai UniversityTianjin 300350China Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution Nankai UniversityTianjin 300350China Tianjin Advanced Water Treatment Technology International Joint Research Center College of Environmental Science and EngineeringNankai UniversityTianjin 300350China Department of Chemical Engineering KU LeuvenJ.De Nayerlaan 5Sint-Katelijne-Waver B-2860Belgium

As important emerging contaminants, antibiotics have caused potential hazards to the ecological environment and human health due to their extensive production and consumption. Among various techniques for removing antibiotics from wastewater, H_(2)O_(2)-based advanced oxidation processes(AOPs) have received increasing attention due to their fast reaction rate and strong oxidation capability. Hence this review critically discusses:(i) Recent research progress of AOPs with the addition of H_(2)O_(2) for antibiotics removal through different methods of H_(2)O_(2) activation;(ii) recent advances in AOPs that can in-situ generate and activate H_(2)O_(2) for antibiotics removal;(iii) H_(2)O_(2)-based AOPs as a combination with other techniques for the degradation and mineralization of antibiotics in wastewater. Future perspectives about H_(2)O_(2)-based AOPs are also presented to grasp the future research trend in the area.

关键词： Advanced oxidation processes H_(2)O_(2)in-situ generation antibiotics degradation Combined AOPs Wastewater treatment

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Biochar-derived dissolved organic matters influencing bacterium characteristics during biodegradation of sulfamethoxazole and chloramphenicol under alternation of visible and avoiding light

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Biochar 2023年第1期5卷 160-174页

作者： Fang Yang Yanan Xue Yue Gao Qing Zhu Cuiping Wang Hongwen Sun Key Laboratory of Pollution Processes and Environmental Criteria Ministry of EducationTianjin Key Laboratory of Environmental Remediation and Pollution ControlCollege of Environmental Science and EngineeringNankai UniversityTianjin 300071People’s Republic of China Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation Tianjin 300071People’s Republic of China

The influence of biochar-released dissolved organic matter(BDOM)on the transcription of gene(DEG)in Pseudomonas stutzeri and Shewanella putrefacien during sulfamethoxazole(SMX)and chloramphenicol(CAP)biodegradation under visible light was investigated in this *** results indicated that BDOM components would be nutrients for bacterial amplification and growth under the culture conditions of xenon lamp irradiation and avoiding light,especially BDOM from low ***,visible light irradiation would improve the saturated fatty acid by stimulating the cell membrane of the microorganism,thus promoting the biodegradation of antibiotics through altering *** and *** reoxidative and catabolism processes and significantly inhabiting the copy number of their ***,the upregulated genes and enzymes related to SMX and CAP-metabolic and catabolic processes were enriched,which were involved in the pathways of biodegradation,further improving biodegradation *** particular,interaction network analysis between the top 100 dominant functional genes from *** and *** and the molecular types of BDOM,e.g.,CHO,CHON,and CHOS(pdegradation of SMX and *** study provided an basis for BDOM playing a role in antibiotic removal from the aqueous solution using biochar combined with photobiodegradation.

关键词： Biochar-derived dissolved organic matters Molecular characteristics antibiotics degradation Transcriptome Functional genes

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