云南化工2024，Vol.51Issue(7)：84-89,6.DOI:10.3969/j.issn.1004-275X.2024.07.20
以稻壳为原料的介孔MoO3/SiO2制备及其氧化脱硫性能
Study on the Green Preparation of Mesoporous MoO3/SiO2 by rice husk and Its Catalytic Performance in Oxidative Desulfurization
胡健 1邓颖 1向晓蓉 1李琴琴 1程慧清 2刘晓雪 2李颢1
作者信息
- 1. 长江大学 化学与环境工程学院,湖北 荆州 434023
- 2. 长江大学 农学院,湖北 荆州 434023
- 折叠
摘要
Abstract
A series of mesoporous MoO3/SiO2 catalysts with different MoO3 loadings were prepared by an incipient-wetness impregnation meth-od using rice husk as both silica source and mesoporous template,and ammonium molybdate tetrahydrate as molybdenum source.The samples were characterized by XRD,UV-Vis,FT-IR and N2 adsorption-desorption isotherms techniques.The results showed that MoO3 is well dis-persed on the carrier SiO2 for samples with low MoO3 loadings;MoO3 crystals with orthorhombic phase begin to appear for samples with high MoO3 loadings.The samples had large specific surface area and obvious mesoporous structure.The catalytic performance of the samples was eval-uated by oxidative desulfurization reactions of dibenzothiophene(DBT)and 4,6-dimethyldibenzothiophene(4,6-DMDBT)model oils,and the suitable catalyst was screened to be 10％ MoO3/SiO2.Under the optimum reaction conditions,the conversions of both DBT and 4,6-DMDBT were 99.9％.关键词
MoO3/SiO2催化剂/氧化脱硫/稻壳/介孔Key words
MoO3/SiO2 Catalysts/Oxidative Desulfurization/Rice Husk/Mesopore分类
化学化工引用本文复制引用
胡健,邓颖,向晓蓉,李琴琴,程慧清,刘晓雪,李颢..以稻壳为原料的介孔MoO3/SiO2制备及其氧化脱硫性能[J].云南化工,2024,51(7):84-89,6.
