Modulating structural oxygen/crystallinity enables ambient cascade photo-upgrading of biomass saccharides to lactic acid

作     者：Jinshu Huang Yan Ding Jie Li Zhao Hu Shunmugavel Saravanamurugan Junqi Wang Yaqiong Su Song Yang Hu Li 

作者机构：State Key Laboratory of Green PesticideKey Laboratory of Green Pesticide&Agricultural BioengineeringMinistry of EducationState-Local Joint Laboratory for Comprehensive Utilization of BiomassCenter for R&D of Fine ChemicalsGuizhou UniversityGuiyangGuizhouChina Laboratory of Bioproduct ChemistryCentre of Innovative and Applied Bioprocessing(CIAB)MohaliPunjabIndia Department of Earth and Environmental ScienceSchool of Human Settlements and Civil EngineeringXi'an Jiaotong UniversityXi'anShaanxiChina School of ChemistryEngineering Research Center of Energy Storage Materials and Devices of Ministry of EducationNational Innovation Platform(Center)for Industry-Education Integration of Energy Storage TechnologyXi'an Jiaotong UniversityXi'anChina 

出 版 物：《Carbon Energy》 (碳能源(英文))

年 卷 期：2025年第7卷第3期

页      面：91-109页

核心收录：

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

基　　金：the Natural Science Foundation of China(22368014,22478087) the Guizhou Provincial S&T Project(GCC011,ZK011) 

主　　题：biomass valorization lactic acid life cycle assessment photocatalysis pyroelectric effect 

摘      要：Photocatalytic transformation of biomass into biofuels and value-added chemicals is of great significance for carbon ***-free carbon nitride has extensive applications but with almost no absorption and utilization of near-infrared light,accounting for 50%of ***,a molten salt-assisted in-plane“stitchingand interlayer“cuttingprotocol is developed for constructing a highly crystalline carbon nitride catalyst containing structural oxygen(HC-CN).HC-CN is highly efficient for the photothermal cascade transformation of biomass-derived glucose into lactic acid(LA)with an unprecedented yield(94.3%)at 25°C under full-spectrum light irradiation within 50 min,which is also applicable to quantitatively photo-upgrading various *** calculations expound that the light-induced glucose-to-catalyst charge transfer can activate the Cβ-H bond to promote the rate-determining step of intramolecular hydrogen shift in glucose-to-fructose ***,the introduced structural oxygen in HC-CN can not only facilitate the local electric field formation to achieve rapid charge transport/separation and regulate selective·O^(-)_(2)generation for oriented C3-C4 bond cleavage of fructose but also narrow the energy band gap to broaden the light absorption range of HC-CN,contributing to enhanced LA production without exogenous ***,HC-CN is highly recyclable and exhibits negligible environmental burden and low energy consumption,as disclosed by the life cycle *** construction of full-spectrum light adsorption and versatile reaction sites provides a reference for implementing multi-step biomass and organic conversion processes under mild conditions.