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Degradation of organic dyes by P25-reduced graphene oxide: influence of inorganic salts and surfactants

Version 2 2024-06-06, 08:43
Version 1 2015-07-02, 16:14
journal contribution
posted on 2015-06-10, 00:00 authored by Jinfeng Wang, Haijin Zhu, Christopher HurrenChristopher Hurren, J Zhao, Esfandiar Pakdel, Zhenyu Li, Xungai Wang
Treatment of coloured effluent treatment is a major issue for the textile industry. In this study, catalyst P25-graphene was prepared and applied for degrading dye from an aqueous solution. Three types of dyes were selected to determine the feasibility of the catalyst for the dye degradation, including sulphonic, azoic, and fluorescent dyes. P25-graphene catalyst showed good ability to degrade all selected dyes. The influence of inorganic salts and surfactants on the photocatalytic degradation of rhodamine B using catalyst P25-graphene was also investigated. The degradation of rhodamine B was suppressed by the presence of NaCl, but the effect of Na2SO4 was negligible. The degradation of rhodamine B was significantly suppressed by all three types of surfactant, namely anionic, cationic and non-ionic surfactants. NMR technique was used to investigate the mechanisms associated with this suppression.

History

Journal

Journal of environmental chemical engineering

Volume

3

Issue

3

Pagination

1437 - 1443

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

2213-3437

Language

eng

Publication classification

C Journal article; C1 Refereed article in a scholarly journal

Copyright notice

2015, Elsevier

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