Open AccessPreparation of BSA-ZnWO4Nanocomposites with Enhanced Adsorptional Photocatalytic Activity for Methylene Blue Degradation
Author(s) -
Pardeep Singh,
Pankaj Raizada,
Deepak Pathania,
Amit Kumar,
Pankaj Thakur
Publication year - 2013
Publication title -
international journal of photoenergy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.426
H-Index - 51
eISSN - 1687-529X
pISSN - 1110-662X
DOI - 10.1155/2013/726250
Subject(s) - photocatalysis , methylene blue , adsorption , photodegradation , degradation (telecommunications) , nanocomposite , fourier transform infrared spectroscopy , chemistry , materials science , chemical engineering , photochemistry , nuclear chemistry , catalysis , nanotechnology , organic chemistry , telecommunications , computer science , engineering
This study explains the effect of adsorption on dye degradation using bovine serum alum and ZnWO4 based nanocomposite (BSA-ZnWO4). The synthesis of BSA-ZnWO4 was performed by a hydrothermal method involving the encapsulation of ZnWO4 with BSA. BSA-ZnWO4 was characterized by SEM, TEM, XRD, FTIR, and UV-Vis spectral techniques. The photocatalytic experiments were performed under solar light. The dye removal was investigated under different reaction conditions. The photocatalytic efficiency of solar/BSA-ZnWO4 process was higher compared to solar/ZnWO4, dark/BSA-ZnWO4, solar/BSA, dark/ZnWO4, and solar light systems. The simultaneous adsorption and photodegradation process (A + P) was the most efficient process due to rapid destruction of adsorbed dye molecules. BSA-ZnWO4 showed superior degradation efficiency and reusability over ZnWO4 for MB degradation
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