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1,3-Disulfoimidazolium chloronickellate immobilized HZSM-5 framework as visible-light-induced heterogeneous photocatalyst for advanced oxidation process

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Abstract

Ionic solid 1,3-disulfoimidazolium chloronickellate [Dsim]2[NiCl4] with low band gap value can be modified as a heterogeneous photocatalyst after immobilization on siliceous zeolite HZSM-5. In this study, different percentages of [Dsim]2[NiCl4]/HZSM-5 supported ionic systems were prepared as acidic solid materials via wet impregnation. The structural changes of the parent HZSM-5 framework within the heterogenized materials were studied using IR, UV, SEM-EDX, PXRD, Raman, BET, TGA, Hammett acidity, HRTEM and ICP-OES techniques. Assessment of their thermal and water tolerance and intensity of photoluminescence spectra instigate the hybrid samples as possible heterogeneous photocatalysts for oxidative degradation of model dye compound methylene blue (MB) involving H2O2 and sunlight at ambient temperature in aqueous solution. This study may contribute to a new perception for the exploration of halometallate ionic salt systems as potential visible light driven photocatalysts in organic transformation.

Graphical abstract: 1,3-Disulfoimidazolium chloronickellate immobilized HZSM-5 framework as visible-light-induced heterogeneous photocatalyst for advanced oxidation process

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Publication details

The article was received on 22 Aug 2017, accepted on 23 Jan 2018 and first published on 24 Jan 2018


Article type: Paper
DOI: 10.1039/C7NJ03135A
Citation: New J. Chem., 2018, Advance Article
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    1,3-Disulfoimidazolium chloronickellate immobilized HZSM-5 framework as visible-light-induced heterogeneous photocatalyst for advanced oxidation process

    S. Saikia, P. Gogoi and R. Borah, New J. Chem., 2018, Advance Article , DOI: 10.1039/C7NJ03135A

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