Catalytic reduction of 4-nitrophenol over cubic platinum nanoparticles supported on gamma alumina

Publish Year: 1397
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

MNTECH01_038

تاریخ نمایه سازی: 23 آذر 1397

Abstract:

In this study catalytic reduction of 4-nitrophenol aqueous solution as highly toxic pollutant was investigated using a new designed Pt/γ-Al2O3 nanocatalyst. This nanocatalyst was prepared by w/o microemulsion method with H2PtCl6 as metallic source. The catalytic activity of the prepared nanocatalyst was investigated by reduction of 4-NP in the mild condition. Various key operating parameters such as initial concentration of 4-NP (5-25 ppm), pH of the solution (4-12), and platinum content of the catalyst (0.5-2 %wt) on the degradation rate of 4-NP was studied by Box–Behnken design. Analyses of Variance (ANOVA) were used to examine influence of independent factors and their quadratic interactions. The obtained results indicated that the maximum degradation can be achieved at pH=4, [4-NP]=10ppm and platinum loading of 1.68 wt%.

Authors

Alireza Keshavarz

Department of Chemistry, Faculty of Science, Arak University Arak, Iran

Alireza Salabat

Institue of Nanosciences & Nanotechnolgy, Arak UniversityArak, Iran

Ramin ValiRasti

Department of Chemistry, Faculty of Science, Arak University Arak, Iran