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Synthesis of amorphous mesoporous TiO2-SiO2 and its excellent catalytic performance in oxidative desulfurization

发布时间:2024-08-06 点击次数:

DOI码: 10.1016/j.inoche.2020.108336
所属单位: Yangtze University
发表刊物: Inorganic Chemistry Communications
项目来源: the National Natural Science Foundation of China (21303008) and Natural Science Foundation of Hubei
关键字: n-Propyltriethoxysilane, Mesoporous TiO2-SiO2, Bulky sulfur compound, Oxidative desulfurization.
摘要: Amorphous mesoporous TiO2-SiO2 composites have been prepared by introducing n-propyltriethoxysilane (PTES) into the synthesis system of titanium silicalite-1 (TS-1). The hydrolysate of PTES can participate in the condensation between ‘Si(OH)4’ and ‘Ti(OH)4’, and generate the isolated ‘alkyl-rich regions’ and ‘inorganic TiO2-SiO2 regions’. Proper amount of ‘alkyl rich regions’ can highly separate titania–silica species and seriously retard the crystal growth, thereby producing the amorphous mesoporous structure. As the PTES/Si molar ratio is between 0.1 and 0.2, the resulting samples have plenty of three-dimensional connected mesopores, and they display outstanding catalytic performance in the oxidative desulfurization of bulky sulfur compounds.
论文类型: 期刊论文
通讯作者: 刘小雨,刘晓雪,单金灵,怀敬龙,杨欢,颜学敏,郑延成,李颢*
论文编号: 108336
卷号: 123
发表时间: 2021-01-01
收录刊物: SCI
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