Conversion of Organic Matter in Coal by Photocatalytic Oxidation with H2O2 over SFC/TiO2 in Isolated Oxygen System

被引：1

作者：

Xie, Heng-Shen ^{[1
,2
]}

Zong, Zhi-Min ^{[2
]}

Wang, Yu-Gao ^{[2
]}

Zhao, Pei-Zhi ^{[2
]}

Zhang, Shi-Hua ^{[2
]}

Wang, Jun-Qiang ^{[1
]}

Fu, Hong ^{[1
]}

Liang, Shuang-Hua ^{[1
]}

Su, Ling ^{[1
]}

Wei, Xian-Yong ^{[2
]}

机构：

[1] Jiangsu Vocat Inst Architectural Technol, Jiangsu Engn Lab Biomass Resources Comprehens Uti, Xuzhou 221116, Jiangsu, Peoples R China

[2] China Univ Min & Technol, Minist Educ, Key Lab Coal Proc & Efficient Utilizat, Xuzhou 221008, Jiangsu, Peoples R China

来源：

JOURNAL OF CHEMISTRY | 2019年 / 2019卷

基金：

中国国家自然科学基金;

关键词：

MILD OXIDATION; DEGRADATION METHOD; SHENFU COAL; LIGNITE; WATER; CHEMICALS; PRODUCTS; CARBON; ACIDS;

D O I：

10.1155/2019/1768351

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Shenfu bituminous coal (SFBC), Geting coal (GTC), Shengli lignite (SLL), and Holingola coal (HLGLC) were oxidized by UV light radiation with aqueous H2O2 over SFC/TiO2 in a closed suspension system (CSS) to understand structural characteristics of 4 typical Chinese coals. Raw and oxidized coals were dried and extracted with acetone thoroughly to ensure residue extraction. Meanwhile, the extracts were analyzed using a gas chromatograph/mass spectrometer. The results show that organic matters (OMs) in coals can be converted into a large number of oxygen-containing organic compounds (OCOCs), mainly containing ketones, esters, alcohols, etc. Oxidizing species such as hydroxyls, hydroperoxyl, and alkyl radicals are excited by light irradiation and substitute for hydrogen atoms of methyls and methylenes of acenes or branched-chain alkanes in coals. Acetic acid and acetaldehyde can be formed and dissolved in aqueous solution in the oxidation reaction. The yields can be improved with the enhancement of the oxidation effect.

引用

页数：12

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