https://scholars.lib.ntu.edu.tw/handle/123456789/616375
標題: | High-efficient photocatalytic degradation of commercial drugs for pharmaceutical wastewater treatment prospects: A case study of Ag/g-C3N4/ZnO nanocomposite materials | 作者: | Thang N.Q. Sabbah A. Chen L.-C. Chen K.-H. Thi C.M. Van Viet P. LI-CHYONG CHEN |
關鍵字: | Ag/g-C3N4/ZnO nanorods;Catalyst dose;Commercial pharmaceuticals;Photocatalytic degradation;Visible light | 公開日期: | 2021 | 卷: | 282 | 來源出版物: | Chemosphere | 摘要: | Pharmaceutical drugs' removal from wastewater by photocatalytic oxidation process is considered as an attractive approach and environmentally friendly solution. This report aims to appraise the practical application potential of Ag/g-C3N4/ZnO nanorods toward the wastewater treatment of the pharmaceutical industry. The catalysts are synthesized by straightforward and environmentally-friendly strategies. Specifically, g-C3N4/ZnO nanorods heterostructure is constructed by a simple self-assembly method, and then Ag nanoparticles are decorated on g-C3N4/ZnO nanorods by a photoreduction route. The results show that three commercial drugs (paracetamol, amoxicillin, and cefalexin) with high concentration (40 mg L−1) are significantly degraded in the existence of a small dosage of Ag/g-C3N4/ZnO nanorods (0.08 g L−1). The Ag/g-C3N4/ZnO nanorods photocatalyst exhibits degradation performance of paracetamol higher 3.8, 1.8, 1.3 times than pristine g-C3N4, ZnO nanorods, and g-C3N4/ZnO nanorods. Furthermore, Ag/g-C3N4/ZnO nanorods have an excellent reusability and a chemical stability that achieved paracetamol degradation efficiency of 78% and remained chemical structure of the photocatalyst after five cycles. In addition, the photocatalytic mechanism explanation and comparison of photocatalytic drugs’ degradation ability have also been discussed in this study. © 2021 Elsevier Ltd |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107281139&doi=10.1016%2fj.chemosphere.2021.130971&partnerID=40&md5=7717a309b4602f0efd0fe64011c172c1 https://scholars.lib.ntu.edu.tw/handle/123456789/616375 |
ISSN: | 00456535 | DOI: | 10.1016/j.chemosphere.2021.130971 | SDG/關鍵字: | Chemical stability;Degradation;Drug delivery;Drug products;Metal nanoparticles;Nanocatalysts;Nanocomposites;Nanorods;Photocatalytic activity;Reusability;Self assembly;Silver nanoparticles;Wastewater treatment;Zinc oxide;Ag$++$;Ag/g-C3N4/ZnO nanorod;Catalyst dose;Commercial pharmaceutical;High efficient;Paracetamol;Photo catalytic degradation;Photo-catalytic;Visible light;ZnO nanorod;II-VI semiconductors;catalysis;catalyst;concentration (composition);degradation;drug;nanoparticle;performance assessment;photochemistry;reduction;wastewater treatment;drug;metal nanoparticle;silver;zinc oxide;water management;Metal Nanoparticles;Pharmaceutical Preparations;Silver;Water Purification;Zinc Oxide |
顯示於: | 凝態科學研究中心 |
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