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http://paper.sci.ui.ac.id/jspui/handle/2808.28/252
Title: | Well-exposed gold nanoclusters on Indonesia natural zeolite: a highly active and reusable catalyst for the reduction of p-nitrophenol |
Authors: | Yulizar, Yoki Kadja, Grandprix Thomryes Marth Safaat, Muhamad |
Keywords: | Catalytic activity Gold nanoclusters Natural zeolitep-nitrophenol Reduction |
Issue Date: | Feb-2016 |
Publisher: | Akademiai Kiado |
Series/Report no.: | Volume 117;Issue 1 |
Abstract: | Herein we report the synthesis of gold nanoclusters upon the surface of Indonesia natural zeolite, denoted as Au/INZ. The as-prepared material has been characterized using X-ray diffraction, atomic absorption spectroscopy, UV–Vis diffuse reflectance spectroscopy, transmission electron microscopy, selected area electron diffraction and N2 physisorption. These characterizations confirm the well-defined gold nanoclusters formed on the surface of Au/INZ. Our catalyst has been applied for the reduction of p-nitrophenol to p-aminophenol. The reduction conversion of ca. 95 % was achieved by the use of 50 mg Au/INZ for 10 min with the observed rate constant (kobs) was of 0.818 min−1. The Ea of the reaction was 16.9 kJ/mol, indicating the diffusion-controlled mechanism. In addition, the reusability test confirmed that our catalyst can be exploited for several times without the significant loss of its high activity. |
URI: | http://paper.sci.ui.ac.id/jspui/handle/2808.28/252 |
ISSN: | 1878-5190 (Print) 1878-5204 (Online) |
Appears in Collections: | Journal Collection |
Files in This Item:
File | Description | Size | Format | |
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YokiYulizar.ReactionKinetics.2016.pdf | 958,96 kB | Adobe PDF | View/Open Request a copy |
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