Zhang Jian
Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.
ChemSusChem. 2018 Sep 21;11(18):3071-3080. doi: 10.1002/cssc.201801370. Epub 2018 Aug 7.
One prominent goal of 21st century research is to develop a sustainable carbon-neutral biorefinery. Lignin is an important component of lignocellulosic biomass; however, it is currently underutilized owing to its highly cross-linked, complex, and randomly polymerized composition, which poses a significant challenge to its depolymerization and valorization. Chemical catalytic approaches based on transition metals represent the primary research area to drive degradation reactions. Recently, alternative photocatalytic strategies that employ sustainable solar energy to initiate the transformation of lignin have started to emerge. This Concept article examines new developments of photocatalyzed reactions and provides insight into C-O and C-C bond-cleavage reactions of lignin models in both homogeneous and heterogeneous systems.
21世纪研究的一个突出目标是开发可持续的碳中和生物精炼厂。木质素是木质纤维素生物质的重要组成部分；然而，由于其高度交联、复杂且随机聚合的组成，目前未得到充分利用，这对其解聚和增值构成了重大挑战。基于过渡金属的化学催化方法是推动降解反应的主要研究领域。最近，利用可持续太阳能引发木质素转化的替代光催化策略开始出现。这篇概念文章探讨了光催化反应的新进展，并深入了解了木质素模型在均相和非均相体系中的C-O和C-C键断裂反应。
