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Enhanced photocatalytic-electrolytic degradation of Reactive Brilliant Red X-3B in the presence of water jet cavitation.
Ultrason Sonochem. 2015 Mar; 23:93-9.US

Abstract

Photocatalysis, electrolysis, water jet cavitation (WJC), alone and in combinations were applied to degrade an azo dye, Reactive Brilliant Red X-3B (X-3B). Experiments were conducted in a 4.0 L aqueous solution with different initial dye concentrations, TiO₂ dose, and solution pH. WJC substantially increased the photocatalytic, electrolytic and photocatalytic-electrolytic rates of the dye removal. The observed first-order rate of X-3B decolorization in the process of combined photocatalysis and electrolysis coupled with WJC was 1.6-2.9 times of that in the process of combined photocatalysis and electrolysis coupled with mechanical stirring. The rate enhancements may be attributed primarily to the reduced diffusion layer thickness on the electrodes and the deagglomeration of photocatalyst particles due to the chemical and physical effects of WJC. Under the conditions of 80 mg/L X-3B solution, 100 mg/L TiO₂ dose and solution pH 6.3, 97% and 71% of color and chemical oxygen demand (CODCr) were removed, respectively, within 90-min photocatalytic-electrolytic treatment coupled with WJC. During this process, azo groups and naphthalene, benzene and triazine structures of the dye can be destroyed. Industrial textile effluent was also investigated, and a positive synergistic effect between photocatalytic-electrolytic system and WJC was observed considering color removal.

Authors+Show Affiliations

School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China. Electronic address: jpjia@sjtu.edu.cn.School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25453209

Citation

Wang, Xiaoning, et al. "Enhanced Photocatalytic-electrolytic Degradation of Reactive Brilliant Red X-3B in the Presence of Water Jet Cavitation." Ultrasonics Sonochemistry, vol. 23, 2015, pp. 93-9.
Wang X, Jia J, Wang Y. Enhanced photocatalytic-electrolytic degradation of Reactive Brilliant Red X-3B in the presence of water jet cavitation. Ultrason Sonochem. 2015;23:93-9.
Wang, X., Jia, J., & Wang, Y. (2015). Enhanced photocatalytic-electrolytic degradation of Reactive Brilliant Red X-3B in the presence of water jet cavitation. Ultrasonics Sonochemistry, 23, 93-9. https://doi.org/10.1016/j.ultsonch.2014.10.005
Wang X, Jia J, Wang Y. Enhanced Photocatalytic-electrolytic Degradation of Reactive Brilliant Red X-3B in the Presence of Water Jet Cavitation. Ultrason Sonochem. 2015;23:93-9. PubMed PMID: 25453209.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Enhanced photocatalytic-electrolytic degradation of Reactive Brilliant Red X-3B in the presence of water jet cavitation. AU - Wang,Xiaoning, AU - Jia,Jinping, AU - Wang,Yalin, Y1 - 2014/10/17/ PY - 2014/05/08/received PY - 2014/09/17/revised PY - 2014/10/04/accepted PY - 2014/12/3/entrez PY - 2014/12/3/pubmed PY - 2014/12/3/medline KW - Dye KW - Electrolysis KW - Jet cavitation KW - Photocatalysis KW - Synergy SP - 93 EP - 9 JF - Ultrasonics sonochemistry JO - Ultrason Sonochem VL - 23 N2 - Photocatalysis, electrolysis, water jet cavitation (WJC), alone and in combinations were applied to degrade an azo dye, Reactive Brilliant Red X-3B (X-3B). Experiments were conducted in a 4.0 L aqueous solution with different initial dye concentrations, TiO₂ dose, and solution pH. WJC substantially increased the photocatalytic, electrolytic and photocatalytic-electrolytic rates of the dye removal. The observed first-order rate of X-3B decolorization in the process of combined photocatalysis and electrolysis coupled with WJC was 1.6-2.9 times of that in the process of combined photocatalysis and electrolysis coupled with mechanical stirring. The rate enhancements may be attributed primarily to the reduced diffusion layer thickness on the electrodes and the deagglomeration of photocatalyst particles due to the chemical and physical effects of WJC. Under the conditions of 80 mg/L X-3B solution, 100 mg/L TiO₂ dose and solution pH 6.3, 97% and 71% of color and chemical oxygen demand (CODCr) were removed, respectively, within 90-min photocatalytic-electrolytic treatment coupled with WJC. During this process, azo groups and naphthalene, benzene and triazine structures of the dye can be destroyed. Industrial textile effluent was also investigated, and a positive synergistic effect between photocatalytic-electrolytic system and WJC was observed considering color removal. SN - 1873-2828 UR - https://www.unboundmedicine.com/medline/citation/25453209/Enhanced_photocatalytic_electrolytic_degradation_of_Reactive_Brilliant_Red_X_3B_in_the_presence_of_water_jet_cavitation_ DB - PRIME DP - Unbound Medicine ER -
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