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学科主题物理化学
Selective conversion of aqueous glucose to value-added sugar aldose on TiO2-based photocatalysts
Chong, Ruifeng; Li, Jun; Ma, Yi; Zhang, Bao; Han, Hongxian; Li, Can; Li C(李灿)
关键词Photocatalysis Biomass Glucose Reactive Oxygen Species Tio2
刊名JOURNAL OF CATALYSIS
2014-05-01
DOI10.1016/j.jcat.2014.03.009
314期:1页:101-108
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]LACTIC-ACID ; TIO2 ; OXIDATION ; HYDROGENATION ; FERMENTATION ; MECHANISMS ; EVOLUTION ; CATALYSTS ; KINETICS ; BIOMASS
英文摘要We describe here a photocatalytic process for direct conversion of glucose to value-added chemicals (arabinose and erythrose) and H-2 in water under mild reaction conditions without additional acid or base. The total selectivity for the production of arabinose and erythrose on rutile TiO2-based photocatalyst reaches 91% at 65% conversion. More importantly, it has been demonstrated for the first time that the photodegradation of glucose initially involves C1-C2 bond cleavage (alpha-scission) to produce arabinose in the presence of water as solvent. To unravel the high selectivity on rutile TiO2, EPR and glucose reaction were carried out on rutile TiO2 in the presence of H2O2. It was found that the selectivity of the products is mainly dependent on the reactive oxygen species: the hydroxyl radicals ((OH)-O-center dot) may lead to low selectivity, while the peroxy species lead to a high selectivity. The advantages of the photocatalytic approach for conversion of biomass to value-added chemicals include (1) operation at low reaction temperature, (2) benign environmental effects due to using only water as both solvent and oxidant precursor, and (3) being wasteless due to high selectivity with H-2 as the by-product. (c) 2014 Elsevier Inc. All rights reserved.
语种英语
WOS记录号WOS:000336951900011
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/144363
专题中国科学院大连化学物理研究所
通讯作者Li C(李灿)
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714
Chong, Ruifeng,Li, Jun,Ma, Yi,et al. Selective conversion of aqueous glucose to value-added sugar aldose on TiO2-based photocatalysts[J]. JOURNAL OF CATALYSIS,2014,314(1):101-108.
APA Chong, Ruifeng.,Li, Jun.,Ma, Yi.,Zhang, Bao.,Han, Hongxian.,...&李灿.(2014).Selective conversion of aqueous glucose to value-added sugar aldose on TiO2-based photocatalysts.JOURNAL OF CATALYSIS,314(1),101-108.
MLA Chong, Ruifeng,et al."Selective conversion of aqueous glucose to value-added sugar aldose on TiO2-based photocatalysts".JOURNAL OF CATALYSIS 314.1(2014):101-108.
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