稻壳SiO_2/钒催化剂上苯乙酮液相氧化(英文)  

Liquid Phase Oxidation of Acetophenone over Rice Husk Silica Vanadium Catalyst

作　　者：Farook ADAM Thiam-Seng CHEW Jeyashelly ANDAS 

机构地区：[1]School of Chemical Sciences, Universiti Sains Malaysia

出　　处：《催化学报》2012年第3期518-522,共5页

基　　金：supported by the Malaysian Government (RU Grant 1001/PKIMIA/811092)

摘　　要：Rice husk silica catalyst loaded with 10 wt% vanadium was synthesized from agricultural biomass via a sol-gel synthetic route at pH = 9. The catalyst was characterized by different physico-chemical methods. The FTIR spectra showed the formation of Si–O–V and V=O stretching bands. The presence of vanadium was confirmed by EDX elemental analysis. RH-10V possessed a high specific surface area of 276 m2/g and pore volume of 0.83 ml/g. The prepared catalyst possessed a narrow pore size distribution centered around 7.9 nm. The catalytic performance of RH-10V was tested in the oxidation of acetophenone at 70 ℃. RH-10V was found to be an active catalyst in the oxidation of acetophenone, producing 36.28% conversion efficiency. The products identified were benzoic acid, 2-hydroxyacetophenone, phenol, acetic acid, and 3-hydroxyacetophenone.Rice husk silica catalyst loaded with 10 wt% vanadium was synthesized from agricultural biomass via a sol-gel synthetic route at pH = 9. The catalyst was characterized by different physico-chemical methods. The FTIR spectra showed the formation of Si–O–V and V=O stretching bands. The presence of vanadium was confirmed by EDX elemental analysis. RH-10V possessed a high specific surface area of 276 m2/g and pore volume of 0.83 ml/g. The prepared catalyst possessed a narrow pore size distribution centered around 7.9 nm. The catalytic performance of RH-10V was tested in the oxidation of acetophenone at 70 ℃. RH-10V was found to be an active catalyst in the oxidation of acetophenone, producing 36.28% conversion efficiency. The products identified were benzoic acid, 2-hydroxyacetophenone, phenol, acetic acid, and 3-hydroxyacetophenone.

关 键 词：CATALYST 液相氧化 钒催化剂 benzoic 苯乙酮 PRESENCE SOL-GEL surface 

分 类 号：O643.32[理学—物理化学]