Efficient degradation of 4-chloro-2-nitrophenol using photocatalytic ozonation with nano-zinc oxide impregnated granular activated carbon (ZNO–GAC)

Hashemi, Seyedenayat and Arfaeinia, Hossein and Sharafi, Hooshmand and Moradi, Masoud and Ehsanifar, Mojtaba (2017) Efficient degradation of 4-chloro-2-nitrophenol using photocatalytic ozonation with nano-zinc oxide impregnated granular activated carbon (ZNO–GAC). Desalination and Water Treatment, 93. pp. 145-151.

Full text not available from this repository.
Official URL: https://www.researchgate.net/publication/321863648...

Abstract

In this paper, the catalytic capability of nano-zinc oxide impregnated granular activated carbon (ZnO–GAC) in photocatalysis and ozonation hybrid system was studied. ZnO–GAC hybrid was prepared by co-precipitation method. FeSEM, XRD, FTIR, EDAX were applied to characterize the structure and morphological feature. 4-chloro-2-nitrophenol (4C2N) was employed as model pollutant to evaluate the catalytic ability of ZnO-GAC. The effect of GAC content and stability of ZnO-GAC in photocatalytic ozonation was also evaluated. The findings indicated that photocatalytic ozonation of 4C2N with ZnO-GAC hybrid was a very efficient technique for 4C2N degradation. The TOC removal efficiency found 100% by ZnO-GAC/O3/UV in 55 min, which is 1.20 times as great as that of ZnO/ O3/UV process. Moreover, the catalytic capability of ZnO–GAC hybrid remained very stable after recycling for five sequential tests. This enhancement is due to the enhanced separation efficiency of photo-generated charges, which simplified the electrons trapping by ozone and improved the yield of hydroxyl radical.

Item Type: Article
Subjects: QU Biochemistry
Divisions: Faculty of Public Health
Depositing User: محسن زارعی
Date Deposited: 31 Dec 2018 08:31
Last Modified: 31 Dec 2018 08:31
URI: http://eprints.bpums.ac.ir/id/eprint/7344

Actions (login required)

View Item View Item