Publication detail
Photocatalytic degradation of xanthate in flotation plant tailings by TiO2/graphene nanocomposites
Jiang, M. Zhang, M. Wang, L. Fei, Y. Wang, S. Núñez-Delgado, A. Bokhari, A. Race, M. Khataee, A. Klemeš, J.J. Xing. L. Han, N.
English title
Photocatalytic degradation of xanthate in flotation plant tailings by TiO2/graphene nanocomposites
Type
journal article in Web of Science
Language
en
Original abstract
This study has invented a novel composite photocatalytic material of TiO2/graphene (TiO2/G) via the hydrothermal method. The prepared TiO2/graphene (TiO2/G) composite catalysts were investigated in detail using various characterisation experiments. The characterisation experiments indicated that the TiO2/graphene (TiO2/G) nanocomposites were successfully prepared. It can be observed that the TiO2 nanoparticles were observed uniformly distributing on the graphene oxide (GO) and the prepared TiO2/graphene (TiO2/G) nanocomposites possess huge specific surface area, small pore size, and low electron-hole pair complexation rate to degrade the pollutants. For the first time, TiO2/G is used as a photocatalytic material to treat mineral processing wastewater. Compared to GO and TiO2, under simulated light irradiation, the photodegradation efficiency of 18% TiO2/G samples reached 97.03% after 100 min. By successfully anchoring TiO2 on GO, the photoresponse range of TiO2/G was broadened (from 200–380 nm to 200–800 nm). The activity was also further improved (after 100 min of simulated light, the photocatalytic efficiency of pure TiO2 was only 17.88%, and the photocatalytic efficiency of 18% TiO2/G was 5.43 times higher than that of pure TiO2). This work advances the development of a potential photo-, photoelectro-systems for the treatment of real mineral processing wastewater.
English abstract
This study has invented a novel composite photocatalytic material of TiO2/graphene (TiO2/G) via the hydrothermal method. The prepared TiO2/graphene (TiO2/G) composite catalysts were investigated in detail using various characterisation experiments. The characterisation experiments indicated that the TiO2/graphene (TiO2/G) nanocomposites were successfully prepared. It can be observed that the TiO2 nanoparticles were observed uniformly distributing on the graphene oxide (GO) and the prepared TiO2/graphene (TiO2/G) nanocomposites possess huge specific surface area, small pore size, and low electron-hole pair complexation rate to degrade the pollutants. For the first time, TiO2/G is used as a photocatalytic material to treat mineral processing wastewater. Compared to GO and TiO2, under simulated light irradiation, the photodegradation efficiency of 18% TiO2/G samples reached 97.03% after 100 min. By successfully anchoring TiO2 on GO, the photoresponse range of TiO2/G was broadened (from 200–380 nm to 200–800 nm). The activity was also further improved (after 100 min of simulated light, the photocatalytic efficiency of pure TiO2 was only 17.88%, and the photocatalytic efficiency of 18% TiO2/G was 5.43 times higher than that of pure TiO2). This work advances the development of a potential photo-, photoelectro-systems for the treatment of real mineral processing wastewater.
Keywords in English
Graphene oxide; Mineral processing; Photodegradation; TiO2; Wastewater treatment
Released
01.03.2022
Publisher
Elsevier B.V.
ISSN
1385-8947
Number
431
Pages from–to
134104–134104
Pages count
11
BIBTEX
@article{BUT175888,
author="Syed Awais Ali Shah {Bokhari} and Jiří {Klemeš},
title="Photocatalytic degradation of xanthate in flotation plant tailings by TiO2/graphene nanocomposites",
year="2022",
number="431",
month="March",
pages="134104--134104",
publisher="Elsevier B.V.",
issn="1385-8947"
}