期刊
KOREAN JOURNAL OF CHEMICAL ENGINEERING
卷 33, 期 6, 页码 1788-1798出版社
KOREAN INSTITUTE CHEMICAL ENGINEERS
DOI: 10.1007/s11814-016-0051-4
关键词
TiO2 Loading; Zinc Ferrite; Light Emitting Diodes (LEDs); Rhodamine B; Photocatalysis
资金
- Department of Science and Technology (DST) - New Delhi, India [SR/FT/CS - 027/2009]
- CSMCRI [CSIR-CSMCRI - 051/2015]
Photocatalytic composite materials having photon absorption capability in the range of visible light were synthesized 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 N-2 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.
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