Synthesis of Fe-doped Bi2O3 nanocatalyst and its sonophotocatalytic activity on synthetic dye and real textile wastewater

Environmental Science and Pollution Research International
G Kumaravel DineshThirugnanasambandam Sivasankar

Abstract

The catalysts such as Fe, Bi2O3, and Fe-doped Bi2O3 were synthesized for the sonophotocatalytic treatment of synthetic dye and real textile wastewater. The resultant catalysts were characterized for its size and uniform shape using x-ray diffractogram (XRD) and scanning electron microscopy (SEM) which signified the nanorod shape formed Bi2O3. The higher ultraviolet light absorbance capacity of the catalysts was also evident using diffuse reflectance spectroscopy (DRS). Initially, the effect of conventional parameters such as initial pH, gas bubbling (argon, oxygen, air and nitrogen) and oxidant addition (H2O2 and peroxymonosulfate) in the presence of sonolysis (22 and 37 kHz frequency) and photolysis (UV-C light) on 10 ppm Basic Brown 1 dye was studied. The results showed that highest decolorization of 62 % was attained for 3 g/L peroxymonosulfate under 37 kHz frequency sonolysis treatment. Secondly, with the catalyst study, highest of 46 % dye color removal was obtained with 4 g/L Fe under 37 kHz frequency sonolysis treatment. The sonophotocatalytic treatment of dye with Fe-doped Bi2O3 catalyst in combination with peroxymonosulfate showed highest color removal of 99 %. Finally, the sonophotocatalytic treatment of real textile ...Continue Reading

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Citations

Oct 1, 2017·Environmental Science and Pollution Research International·José Luiz Sousa, André Aguiar
Sep 22, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·UNKNOWN JagannathanMadhavanUNKNOWN MuthupandianAshokkumar
Apr 25, 2021·Environmental Science and Pollution Research International·Jun LuJuan Zhou
Oct 3, 2018·Ultrasonics Sonochemistry·G Kumaravel Dinesh, Sankar Chakma

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