利用贵金属掺杂ZnO光催化氧化抗生素残留和有机染料污染物:降低环境和健康风险。

IF 1.4 4区 农林科学 Q4 ENVIRONMENTAL SCIENCES
Minh Thuy Pham, Thi Thu Hien Chu, Duc Chinh Vu
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引用次数: 0

摘要

与抗生素残留和有色有机污染物相关的水污染对人类健康和环境造成各种潜在风险。本工作开发了一种既适合去除水中抗生素残留又适合去除有色有机污染物的经济方法。选择贵金属(Ag)掺杂氧化锌光催化剂(Ag- zno)氧化工艺作为潜在的研究策略。选择四环素类抗生素残留(A-Tc)和亚甲基蓝有机污染物(D-Mb)作为目标污染物。在光照条件下,Ag-ZnO对A-Tc和D-Mb的降解效率分别达到90.6%和97.3%。Ag-ZnO的优势也被更快的降解速率常数所证实,其降解速率常数是未掺杂样品的两倍以上。矿化过程表明,A-Tc和D-Mb溶液中有机碳的去除率分别为93.5%和98.7%。结果表明,抗生素残留和有色有机污染物正在转化为无机物。此外,还讨论了Ag-ZnO在提高人体健康安全性、减少对环境的负面影响和降低处理成本方面的好处。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Photocatalytic oxidation of antibiotic residue and organic dye pollutant using noble metal-doped ZnO: Reducing environmental and health risks.

Water pollution associated with antibiotic residues and colored organic pollutants leads to various potential risks to human health and the environment. This work develops an economical method that is suitable for removing both antibiotic residues and colored organic pollutants from water. The oxidation process based on a noble metal (Ag)-doped zinc oxide photocatalyst (Ag-ZnO) was selected as a potential strategy for investigation. Besides, tetracycline antibiotic residues (A-Tc) and methylene blue-colored organic pollutants (D-Mb) were selected as target contaminants. With light assistance, Ag-ZnO showed significantly improved degradation efficiency for A-Tc and D-Mb at 90.6 and 97.3%, respectively. The advantages of Ag-ZnO are also confirmed by the faster degradation rate constants, which are more than twice as fast as those of the undoped sample. The mineralization process shows that 93.5% and 98.7% of organic carbon were removed from the A-Tc and D-Mb solutions, respectively. The result suggests that antibiotic residues and colored organic pollutants are being converted into inorganic substances. In addition, the benefits of using Ag-ZnO to enhance human health safety, reduce the negative effects on the environment, and decrease treatment costs are discussed.

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来源期刊
CiteScore
4.00
自引率
5.00%
发文量
87
审稿时长
1 months
期刊介绍: 12 issues per year Abstracted/indexed in: Agricola; Analytical Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; BioSciences Information Service of Biological Abstracts (BIOSIS); CAB Abstracts; CAB AGBiotech News and Information; CAB Irrigation & Drainage Abstracts; CAB Soils & Fertilizers Abstracts; Chemical Abstracts Service Plus; CSA Aluminum Industry Abstracts; CSA ANTE: Abstracts in New Technology and Engineering; CSA ASFA 3 Aquatic Pollution and Environmental Quality; CSA ASSIA: Applied Social Sciences Index & Abstracts; CSA Ecology Abstracts; CSA Entomology Abstracts; CSA Environmental Engineering Abstracts; CSA Health & Safety Science Abstracts; CSA Pollution Abstracts; CSA Toxicology Abstracts; CSA Water Resource Abstracts; EBSCOhost Online Research Databases; Elsevier BIOBASE/Current Awareness in Biological Sciences; Elsevier Engineering Information: EMBASE/Excerpta Medica/ Engineering Index/COMPENDEX PLUS; Environment Abstracts; Environmental Knowledge; Food Science and Technology Abstracts; Geo Abstracts; Geobase; Food Science; Index Medicus/ MEDLINE; INIST-Pascal/ CNRS; NIOSHTIC; ISI BIOSIS Previews; Pesticides; Food Contaminants and Agricultural Wastes: Analytical Abstracts; Pollution Abstracts; PubSCIENCE; Reference Update; Research Alert; Science Citation Index Expanded (SCIE); and Water Resources Abstracts.
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