Articles & Issues

Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received October 19, 2015
Accepted February 18, 2016

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

All issues

Facile synthesis of TiO2/ZnFe2O4 nanocomposite by sol-gel auto combustion method for superior visible light photocatalytic efficiency

Kalithasan Natarajan^{1 2} Puspendra Singh^{1 3} Hari Chand Bajaj^{1 2} Rajesh Jagannath Tayade^{1 3†}

¹Inorganic Materials and Catalysis Division (IMCD), CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific and Industrial Research (CSIR), G. B. Marg, Bhavnagar-364 002, Gujarat, India ²Academy of Scientific and Innovative Research (AcSIR), CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), G. B. Marg, Bhavnagar-364 002, Gujarat, India ³, India

Korean Journal of Chemical Engineering, June 2016, 33(6), 1788-1798(11), 10.1007/s11814-016-0051-4

Download PDF

Abstract

Photocatalytic composite materials having photon absorption capability in the range of visible light weresynthesized by loading TiO2 (5, 10, 15, and 20 wt%) on ferrite nanocomposites by sol-gel auto-combustion method. The synthesized nanocomposites were analyzed using X-ray diffraction, Transmission electron microscopy, diffuse reflectance spectroscopy and N2 adsorption techniques. The generation of photo active hydroxyl radicals for all the synthesized composites was found higher under the irradiation of red LED (RLED irradiation) which was confirmed by degradation of rhodamine B dye under irradiation of RLED. Photocatalytic activity of the synthesized nanocomposites was also carried out under irradiation of ultraviolet (UVLED) and blue (BLED) light emitting diodes, which is comparatively less than for the reaction under red LED irradiation. The operational parameters like catalyst amount, pH and concentration of dye solution were studied and ESI-MS degradation pathway is proposed by analyzing the degraded samples.

Keywords

TiO2 Loading Zinc Ferrite Light Emitting Diodes (LEDs) Rhodamine B Photocatalysis

References

Zhang GY, Sun YQ, Gao DZ, Xu YY, Mater. Res. Bull., 45(7), 755 (2010)
Zhang B, Zhang J, Chen F, Res. Chem. Intermed., 34, 375 (2008)
Yang J, Li X, Deng X, Huang Z, Zhang Y, J. Ceram. Soc. Jpn., 120, 579 (2012)
Cao XB, Gu L, Lan XM, Zhao C, Yao D, Sheng WJ, Mater. Chem. Phys., 106(2-3), 175 (2007)
Li XY, Hou Y, Zhao QD, Wang LZ, J. Colloid Interface Sci., 358(1), 102 (2011)
Sun S, Yang X, Zhang Y, Zhang F, Dinga J, Bao J, Gao C, Prog. Nat. Sci., 22, 639 (2012)