Ultrasonic-assisted decoration of AgWO, AgI, and Ag nanoparticles over tubular g-CN: Plasmonic photocatalysts for impressive removal of tetracycline under visible light.

Photochem Photobiol Sci

Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.

Published: July 2022

AI Article Synopsis

  • The study focuses on creating an efficient and eco-friendly photocatalyst to tackle environmental issues.
  • The newly developed plasmonic photocatalyst, TGCN/Ag/AgWO/AgI, showed remarkable photocatalytic performance, outperforming other catalysts in removing harmful substances like tetracycline hydrochloride and various dyes.
  • The enhanced activity is attributed to better light absorption, charge separation, and movement, with reactive oxygen and holes identified as key players in the photocatalysis process.

Article Abstract

The development of an efficient, eco-friendly, and low-cost photocatalyst is essential for addressing environmental and energy crises. In this regard, we report novel plasmonic photocatalysts through adorning tubular g-CN with AgWO, Ag, and AgI nanoparticles (TGCN/Ag/AgWO/AgI) fabricated via a facile ultrasonic-irradiation procedure. The TGCN/Ag/AgWO/AgI (20%) nanocomposite presented the excellent photocatalytic ability for removal of tetracycline hydrochloride under visible light, which was almost 45.6, 4.03, and 1.32 times more than GCN, TGCN, and TGCN/Ag/AgWO (20%) photocatalysts, respectively. Interestingly, the photocatalyst displayed impressive ability for the degradations of amoxicilline, rhodamine B, methyl orange, fuchsine, and methylene blue, which was 14.7, 52.2, 9.8, 13.2, and 7.46 times as much as pure GCN. The outcomes of DRS, PL, EIS, and photocurrent density analyses proved that the impressive activity could be related to the highly promoted harvesting of visible light, segregation of charge carriers, and improved charge migrations. In addition, trapping tests exhibited that O and h were active species in the photocatalysis process.

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http://dx.doi.org/10.1007/s43630-022-00209-zDOI Listing

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