A comparison between the heterogeneous photodecolorization of an azo dye using Ni/P zeolite and NiS/P zeolite catalysts

محورهای موضوعی : Iranian Journal of Catalysis

Alireza Nezamzadeh-Ejhieh ¹ , Mahshid Khorsandi ²

1 - Department of Chemistry, Shahreza Branch, Islamic Azad University, P.O. Box 311-86145, Shahreza, Isfahan, Iran.
2 - Department of Chemistry, Shahreza Branch, Islamic Azad University, P.O. Box 311-86145, Shahreza, Isfahan, Iran.

تاریخ دریافت : 1390/06/12 تاریخ پذیرش : 1390/08/18 تاریخ انتشار : 1390/09/10

کلید واژه: NiS, Heterogeneous catalysis, Eriochrome Black T, Photodecolorization, Zeolite P,

چکیده مقاله :

A comparison of the photoefficiency of Ni(II) and NiS incorporated into zeolite P towards photodecolorization of Eriochrome Black T dye solution was investigated in a photocatalytic reactor using UV lamp as a light source. The effect of various experimental variables on the decolorization performance of the process was evaluated by examining catalyst dosage, temperature, initial dye concentration and pH of the dye solution. The obtained results showed better efficiency of NiS/P than Ni/P catalyst. The decolorization process in both case obeyed first-order kinetics.

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