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Influence of CoOx surface passivation and Sn/Zr-co-doping on the photocatalytic activity of Fe2O3 nanorod photocatalysts for bacterial inactivation and photo-Fenton degradation by Velu Manikandan; Periyasamy Anushkkaran; In Seon Hwang; Min Seok Song; Manish Kumar; Weon-Sik Chae; Hyun-Hwi Lee; Jungho Ryu; Mahadeo A. Mahadik; Jum Suk Jang is a Environmental Science article available to read on EtoBox.

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Hydrothermal and wet impregnation methods are presented in this study for synthesizing CoOx(1 wt%)/Sn/Zr-codoped Fe2O3 nanorod photocatalysts for the degradation of organic pollutants and deactivation of bacteria. A hydrothermal route was used to synthesize self-assembled rod-like hierarchical structures of Sn(0–6%) doped Zr–Fe2O3 NRs. Additionally, a wet impregnation method was used to load CoOx onto the surface of photocatalysts (Sn(0–6%)-doped Zr–Fe2O3 NRs). A series of 1 wt% CoOx modified Sn(0–6%)-doped Zr–Fe2O3 NRs were synthesized, characterized, and utilized for the photocatalytic decomposition of organic contaminants, along with the killing of E. coli and S. aureus. In comparison with 0, 2, and 6% Sn co-doped Zr–Fe2O3 NRs, the CoOx(1 wt%)/4%Sn/Zr–Fe2O3 NRs photocatalyst exhibited an E. coli and S. aureus inactivation efficiencies (90 and 98%). A bio-TEM study of treated and untreated bacterial cells revealed that the CoOx(1 wt%)/4%Sn/Zr–Fe2O3 NRs photocatalyst led to considerable changes in the bacterial cell membranes’ morphology. The optimal CoOx(1 wt%)/Sn(4%) co-doped Zr–Fe2O3 NRs photocatalyst achieved degradation efficiencies of 98.5% and 94.6% for BPA and orange II dy

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Author

Velu Manikandan; Periyasamy Anushkkaran; In Seon Hwang; Min Seok Song; Manish Kumar; Weon-Sik Chae; Hyun-Hwi Lee; Jungho Ryu; Mahadeo A. Mahadik; Jum Suk Jang

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Environmental Science (Physical Sciences)