Oxidative Desulfurization Over Highly Dispersed alpha-SnWO4 Nanoparticles Anchored on Amine-Modified SiO2

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作   者：

Chen, Yajuan;  Tong, Yibin;  Zhu, Mingyuan; 

作者机构：

Shihezi Univ; 

关键词：

Oxidative desulfurization;  OXIDE;  PERFORMANCE;  Electrostatic interaction;  SNWO4;  DIBENZOTHIOPHENE;  alpha-SnWO4/NH2-SiO2;  PHOTOANODES;  CATALYST;  FUELS; 

期刊名称：

Catalysis Letters

i s s n：

1011-372X

年卷期：

2023 年 153 卷 2 期

页   码：

522-533

页   码：

摘   要：

alpha-SnWO4 nanoparticles were synthesized on SiO2 grafted with amino functional groups (NH2-SiO2) using a one-step solvothermal method to achieve the purpose of deep desulfurization (<10 ppm). The characterization results indicated that well-dispersed 3% alpha-SW/NS was successfully synthesized. The catalysts displayed excellent dibenzothiophene (DBT) removal performance at 30 degrees C for 1.5 h, and the regeneration ability was improved compared with 3% alpha-SnWO4/SiO2 (alpha-SW/S). Catalyst deactivation was investigated, and the results show that loss of W element with oxidation of Sn2+ result in the low stability of 3% alpha-SW/S, whereas only W leaching occurs in 3% alpha-SW/NS. Reaction mechanism prove that main reactive species are center dot OH and electron transport in the reaction. [GRAPHICS] .