Issue 23, 2020

Highly distorted mesoporous S/C/Ti3+ doped black TiO2 for simultaneous visible light degradation of multiple dyes

Abstract

Rapid industrial growth has led to the empowerment of the standard of living and economy. However, society has been seriously agonized by lack of waste management. Degradation of dyes into simple molecules is recognized as an urgent solution for the current issue. In this direction, we have developed sulfur, carbon and Ti3+ co-doped black TiO2 (S–B-TiO2) nanoparticles as an advanced photocatalyst for mixed dye degradation. As a result, the band gap energy of TiO2 was cut down to 2.53 eV from 3.2 eV making it a visible light pro-active photocatalyst. In this report, rose bengal (RB) and methylene blue (MB) were mixed and simultaneously photo-degraded using S–B-TiO2 nanoparticles. Within a short period of time, simultaneous photo-degradation of RB and MB was achieved as high as 90 and 96%, respectively. Furthermore, various studies including into the effect of catalyst dosage, dye concentration and pH of the solution were extensively performed. In addition, scavenger experiments were also carried out to infer the degradation mechanism.

Graphical abstract: Highly distorted mesoporous S/C/Ti3+ doped black TiO2 for simultaneous visible light degradation of multiple dyes

Supplementary files

Article information

Article type
Paper
Submitted
02 Apr 2020
Accepted
21 May 2020
First published
22 May 2020

New J. Chem., 2020,44, 9830-9836

Highly distorted mesoporous S/C/Ti3+ doped black TiO2 for simultaneous visible light degradation of multiple dyes

S. B. Patil, H. Phattepur, G. Nagaraju and B. S. Gowrishankar, New J. Chem., 2020, 44, 9830 DOI: 10.1039/D0NJ01540G

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