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Title

Enhancement of photocatalytic degradation of 4-nitrophenol by integrating Ag nanoparticles with ZnO/HZSM-5 nanocomposite

Pages

 Start Page 63 | End Page 70

Abstract

 In this paper, Ag/ZnO/HZSM-5Ternary nanocomposites with different Ag loadings were prepared by the Photo precipitation method. The prepared photocatalysts were characterized by XRD, BET, SEM and TEM. The photocatalytic activity of ZnO/HZSM-5 for 4-nitrophenol (4-NP) degradation was increased by silver doping. Effects of various parameters such as the initial concentration of 4-NP, pH and Ag loading on 4-NP degradation were studied. The best activities were obtained for the 3% Ag-10% ZnO/HZSM-5 nanocatalysts at pH 7. 9, 1 g L− 1 of the catalyst and 5 ppm of 4-NP. Langmuir– Hinshelwood (L– H) model was proposed for the rate equation of the 4-NP degradation.

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