A PILOT STUDY OF R016 DISCOLORATION AND MINERALIZATION IN TEXTILE EMUENTS USING THE NANOPHOTOCATALYTIC PROCESS

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GHANBARIAN M.; MAHVI A.H.; NABIZADEH NOUDEHI R.; SAEIDNIA S.

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Journal: WATER AND WASTEWATER Year:2009 | Volume:20 | Issue:1 (69) Page(s): 45-51

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Information Journal Paper

Title

A PILOT STUDY OF R016 DISCOLORATION AND MINERALIZATION IN TEXTILE EMUENTS USING THE NANOPHOTOCATALYTIC PROCESS

Author(s)

GHANBARIAN M. | MAHVI A.H. | NABIZADEH NOUDEHI R. | SAEIDNIA S. | Issue Writer Certificate

Keywords

REACTIVE ORANGE 16Q3

UV IRRADIATIONQ3

TITANIUM DIOXIDE NANOPARTICLEQ3

DISCOLORATIONQ3

MINERALIZATIONQ3

CODQ3

Abstract

The nanophotocatalytic process using nano-structured semiconductors is one of the techniques used for the destructive oxidation of organic compounds such as dyes. The photocatalytic oxidation of REACTIVE ORANGE 16 aqueous solution, applied in the textile industry, was assessed by UV ray irradiation in the presence of TiO2 nanoparticles. It was found that the photons required for the process were completely absorbed when TiO2 concentration reached 0.4 g/L. Degradation of paint decreased with increasing TiO2-concentration. It is suggested that at very high concentrations, the active points on ions are covered and the number of radicals like 'OH will, therefore, decrease on the surface of catalysts. Another explanation for this state of affairs is that UV screening may have the same function. The negative action of anions may be explained by the reaction of positive cavities accomplished by hydroxyl radicals with anions. This reaction can be described as corrosive for 'OH and hVB+, which can prolong the process of color removal. The TiO2 in an acidic environment has a positive charge (pH<6.8); therefore, there exists an electrostatic adsorption between the positive charge of TiO2 and anionic colors. pH is a very important factor because it affects the electrostatic charge of the photocatalyst ions as well as the surface of the semiconductor particles. The MINERALIZATION of RO 16 dye was reported by measuring the initial and final COD (Chemical Oxygen Demand) values of the solution irradiated under optimized conditions. The results showed that the nanophotocatalytic process has a tremendous capability in enhancing the MINERALIZATION of RO16.

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APA: Copy

GHANBARIAN, M., MAHVI, A.H., NABIZADEH NOUDEHI, R., & SAEIDNIA, S.. (2009). A PILOT STUDY OF R016 DISCOLORATION AND MINERALIZATION IN TEXTILE EMUENTS USING THE NANOPHOTOCATALYTIC PROCESS. WATER AND WASTEWATER, 20(1 (69)), 45-51. SID. https://sid.ir/paper/103470/en

Vancouver: Copy

GHANBARIAN M., MAHVI A.H., NABIZADEH NOUDEHI R., SAEIDNIA S.. A PILOT STUDY OF R016 DISCOLORATION AND MINERALIZATION IN TEXTILE EMUENTS USING THE NANOPHOTOCATALYTIC PROCESS. WATER AND WASTEWATER[Internet]. 2009;20(1 (69)):45-51. Available from: https://sid.ir/paper/103470/en

IEEE: Copy

M. GHANBARIAN, A.H. MAHVI, R. NABIZADEH NOUDEHI, and S. SAEIDNIA, “A PILOT STUDY OF R016 DISCOLORATION AND MINERALIZATION IN TEXTILE EMUENTS USING THE NANOPHOTOCATALYTIC PROCESS,” WATER AND WASTEWATER, vol. 20, no. 1 (69), pp. 45–51, 2009, [Online]. Available: https://sid.ir/paper/103470/en

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