Direct synthesis, characterization and application in benzaldehyde oxidation of HPWA-SBA-15 mesoporous catalysts

作者：Dong Bei Bei; Zhang Bing Bing; Wu Hai Yan; Li Shu Ding; Zhang Ke; Zheng Xiu Cheng^*

来源：Microporous and Mesoporous Materials, 2013, 176: 186-193.

DOI：10.1016/j.micromeso.2013.03.051

• HPWA-SBA-15
• Mesoporous catalysts
• Characterization
• Benzaldehyde
• Benzoic acid

HPWA-SBA-15 mesoporous catalysts were prepared via directly introducing 12-tungstophosphoric acid (HPWA) into SBA-15 by a hydrothermal method. The samples were characterized by XRD, XRF, FT-IR, DR UV-vis, SEM, TEM, NH3-TPD, and nitrogen adsorption-desorption. The influence of different HPWA amounts on the structure and catalytic properties for benzaldehyde oxidation with 30 wt.% H2O2 was comparatively studied. The results indicated that the HPWA-SBA-15 materials retained the mesopore structure of SBA-15 and the XRD patterns of bulk HPWA would not appear until the HPWA loading increased to 40 wt.%. Catalytic performance tests revealed that HPWA-SBA-15 was an efficient catalyst for the oxidation of benzaldehyde to benzoic acid, and the sample with 35 wt.% HPWA loading was found to be more active than the others under the same reaction conditions.

• 出版日期2013-8
• 单位郑州大学