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Adsorption and catalytic removal of methyl orange from water by PIL-GO/TiO2/Fe3O4 composites by Hongfei Liu; Kexu Wang; Dongke Zhang; Dishun Zhao; Jianhua Zhai; Wenguang Cui is a Engineering article available to read on EtoBox.

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In this paper, an organic-inorganic hybrid material was synthesized via a simple but effective method, the novel material PGO-TiO2/Fe3O4 (PGTF) was produced by loading TiO2 and Fe3O4 onto polymeric ionic liquid(PIL) functionalized graphene oxide(GO). The successful synthesis of PGTF and related structural feature were confirmed by a series of characterizations. The results of UV diffuse reflectance (DRS) demonstrated that the incorporation of PGO-Fe3O4 to TiO2 shifted the light absorption of TiO2 from ultraviolet (UV) to visible region. The band gap energy of the PGTF reduced to1.92 eV as compared to TiO2 (3.12 eV). Different materials were used to remove methyl orange (MO) from the aqueous solution. The results showed that PGTF had a superior capacity to remove dye due to the synergistic effects of adsorption and photocatalysis. The excellent adsorption properties may result from the high specific surface area of GO and the –NH2 in the PIL. The polyionic liquid absorbed electrons due to the electrostatic action of the cation head in the polyionic liquid and GO which had high conductivity favored electron transport. The photocatalytic effectiveness increased as a result of the sepa

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Author

Hongfei Liu; Kexu Wang; Dongke Zhang; Dishun Zhao; Jianhua Zhai; Wenguang Cui

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)