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Photocatalytic transformations of lignocellulosic biomass into chemicals.
Chemical Society Reviews ( IF 40.4 ) Pub Date : 2020-08-05 , DOI: 10.1039/d0cs00314j
Xuejiao Wu 1 , Nengchao Luo 2 , Shunji Xie 1 , Haikun Zhang 1 , Qinghong Zhang 1 , Feng Wang 2 , Ye Wang 1
Affiliation  

As the largest renewable carbon resource, lignocellulosic biomass has great potential to replace fossil resources for the production of high-value chemicals, in particular organic oxygenates. Catalytic transformations of lignocellulosic biomass using solar energy have attracted much recent attention, because of unique reactive species and reaction patterns induced by photo-excited charge carriers or photo-generated reactive species as well as the mild reaction conditions, which may enable the precise cleavage of target chemical bonds or selective functionalisation of specific functional groups with other functional groups kept intact. Here, we present a critical review on recent advances in the photocatalytic transformation of lignocellulosic biomass with an emphasis on photocatalytic cleavage of C–O and C–C bonds in major components of lignocellulosic biomass, including polysaccharides and lignin, and the photocatalytic valorisation of some key platform molecules. The key issues that control the reaction paths and the reaction mechanism will be discussed to offer insights to guide the design of active and selective photocatalytic systems for biomass valorisation under mild conditions. The challenges and future opportunities in photocatalytic transformations of lignocellulosic biomass are also analysed.

中文翻译:

木质纤维素生物质向化学物质的光催化转化。

作为最大的可再生碳资源,木质纤维素生物质具有替代化石资源以生产高价值化学品(特别是有机含氧化合物)的巨大潜力。由于光激发的电荷载流子或光生的反应物种以及温和的反应条件引起的独特的反应物种和反应方式,以及温和的反应条件,利用太阳能进行的木质纤维素生物质的催化转化已引起了人们的广泛关注。靶向化学键或特定官能团的选择性官能化,而其他官能团则保持完整。这里,我们对木质纤维素生物质的光催化转化的最新进展进行了重要的评论,重点是木质纤维素生物质的主要成分(包括多糖和木质素)中的C-O和C-C键的光催化裂解,以及某些关键平台的光催化增值作用分子。将讨论控制反应路径和反应机理的关键问题,以提供一些见识,以指导在温和条件下进行生物质平衡的活性和选择性光催化系统的设计。还分析了木质纤维素生物质的光催化转化中的挑战和未来机会。将讨论控制反应路径和反应机理的关键问题,以提供一些见识,以指导在温和条件下进行生物质平衡的活性和选择性光催化系统的设计。还分析了木质纤维素生物质的光催化转化中的挑战和未来机会。将讨论控制反应路径和反应机理的关键问题,以提供一些见识,以指导在温和条件下进行生物质平衡的活性和选择性光催化系统的设计。还分析了木质纤维素生物质的光催化转化中的挑战和未来机会。
更新日期:2020-09-01
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