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.com
Volume 9
Chemical Sciences Journal
Asia Chemistry 2018
September 12-13, 2018
11
th
Annual Congress on
September 12-13, 2018 Singapore
Chemistry
Sonophotocatalytic degradation of textile dyes using copper impregnated Al
2
O
3
under visible light
Irradiation
Jasmin Shah and Fatima Khitab
University of Peshawar, Pakistan
V
isible-light-drivenphotocatalystwaspreparedbywetImpregnationmethod.Thepreparedphotocatalystwascharacterizedwith
different spectroscopic techniques. Cupper impregnated alumina (Cu-Al
2
O
3
) photocatalyst was used for Sonophotocatalytic
degradation of two textile dyes, Acid Red 27 (AR-27) and Direct Violet 51 (DV-51). Effect of parameters such as pH, photocatalyst
dosage, oxidizing agents, dye concentration, scavengers, photocatalyst re-used ability and catalyst poisoning were investigated.
The catalytic degradation of AR-27 increased from 26.8% to 85.1% and DV-51 increased from 23.9% to 84.6% with 8 mmol of
hydrogen peroxide. At pH 10, the sonophotocatalytic degradation of AR-27 was 100% in 50 minutes and DV-51 was 100% in 60
minutes. It was found that scavengers increased the degradation time and decreased the percent removal of AR-27 from 100% in
50 minutes to 81.8% in 60 minutes. Catalyst reusability was checked and up to five-time use good results were achieved. Kinetics
study was also carried out and found that both of the dyes undergo first order kinetic model. All the experiments revealed that
the Sonophotocatalytic Degradation method in the presence of Cu-Al
2
O
3
is a suitable option for the treatment of textile effluents
in the presence of visible light.
jasminshah2001@yahoo.comChem Sci J 2018, Volume 9
DOI: 10.4172/2150-3494-C5-030