纳米金支撑的二氧化钛负载 SBA-15：还原 4-硝基苯酚的高效催化剂

Q4 Chemistry

Asian Journal of Chemistry Pub Date : 2024-07-25 DOI:10.14233/ajchem.2024.31767

Soumini Chandralayam, Sugunan Sankaran

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引用次数: 0

摘要

平均粒径小于 5 纳米的金纳米粒子被有效地分散在二氧化钛负载的 SBA-15 上。研究发现，纳米金支撑体系在室温（304 K）下将 4-硝基苯酚液相还原为 4-氨基苯酚的过程中非常有效，并遵循伪一阶动力学。在 20 重量百分比的钛负载 SBA-15 中加入 3 重量百分比金的高效催化剂（3Au/20Ti/SBA）在反应中显示出 5.8 × 1021 个分子/克的 TON 和 6.5 × 1018 个分子/克/秒的 TOF。

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Nanogold Supported Titania Loaded SBA-15: An Efficient Catalyst for Reduction of 4-Nitrophenol

Gold nanoparticles with an average particle size below 5 nm were effectively dispersed over titania loaded SBA-15. The nanogold supported systems were found to be highly effective in the liquid phase reduction of 4-nitrophenol to 4-aminophenol at room temperature (304 K) obeying pseudo-first-order kinetics. The highly effective catalyst with 3 wt.% Au incorporation to 20 wt.% Ti loaded SBA-15 (3Au/20Ti/SBA) showed a TON of 5.8 × 1021 molecules/g and a TOF of 6.5 × 1018 molecules/g/s in the reaction.

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来源期刊

Asian Journal of Chemistry 化学-化学综合

CiteScore

0.80

自引率

0.00%

发文量

229

审稿时长

4 months

期刊介绍： Information not localized