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Removal of azo dye by synthesized TiO2nanoparticles

100%
Amin M. S. A., Uddin M. J., Islam M. A.
Nanomaterials and the Environment
|
2013
|
vol. 1
18-22
EN
TiO2 nanoparticles were synthesized by one-step Sol-gel method. Prepared nanoparticles were characterized by different characterization (SEM, EDS and XRD) techniques. The aqueous solution of Methylene Blue (MB) has been subjected to evaluate the photocatalytic degradation by UV radiation in the presence of synthesized TiO2 photocatalyst coated reactor. The experiments were conducted with and without aeration, using different dye concentrations, and catalyst loading, revealed that the degradation was strongly influenced by respective experimental parameters. However, maximum MB dye was removed by the photodegradation process operating with aeration and higher catalyst dosing.
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Factors Affecting the Performance of Double Chamber Microbial Fuel Cell for Simultaneous Wastewater Treatment and Power Generation

88%
Khan M. R., Amin M. S. A., Rahman M. T., Akbar F., Ferdaus K.
Polish Journal of Chemical Technology
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2013
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vol. 15
|
issue 1
7-11
EN
Electricity generation from the readily biodegradable organic substrate (glucose) accompanied by decolorization of azo dye was investigated using a two-chamber microbial fuel cell (MFC). Batch experiments were conducted to study the effect of dye and substrate concentration on MFC performance. Electricity generation was not significantly affected by the azo dye at 300 mg/L, while higher concentrations inhibited electricity generation. The chemical oxygen demand (COD) removal and decolorization of dye containing wastewater used in the MFC were studied at optimum operation conditions in anode and cathode, 57% COD removal and 70% dye removal were achieved. This study also demonstrated the effect of different catholyte solutions, such as KMnO4 and K2Cr2O7 on electricity generation. As a result, KMnO4 solution showed the maximum electricity generation due to its higher standard reduction potential.
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