首页|Clean production of lactic acid by selective carbon-carbon bond cleavage of biomass feedstock over a novel carbon-bismuth oxychloride photocatalyst

Clean production of lactic acid by selective carbon-carbon bond cleavage of biomass feedstock over a novel carbon-bismuth oxychloride photocatalyst

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The use of functional materials such as carbon-bismuth oxyhalides in integrated photorefineries for the clean production of fine chemicals requires restructuring.A facile biomass-assisted solvothermal fabrication of carbon/bismuth oxychloride nanocomposites(C/BiOCl)was achieved at various temperatures.Compared with BiOCl and C/BiOCl-120,C/BiOCl-180 exhibited higher crystallinity,wider visible light absorption,and a faster migration/separation rate of photoinduced carriers.For the selective C-C bond cleavage of biomass-based feedstocks photocatalyzed by C/BiOCl-180,the xylose conversion and lactic acid yield were 100％and 92.5％,respectively.C/BiOCl-180 efficiently converted different biomass-based monosaccharides to lactic acid,and the efficiency of pentoses was higher than that of hexoses.Moreover,lactic acid synthesis was favored by all active radicals including superoxide ion(O2-),holes(h+),hydroxyl radical(OH),and singlet oxygen(1O2),with·O2- playing a key role.The fabricated photocatalyst was stable,economical,and recyclable.The use of biomass-derived monosaccharides for the clean production of lactic acid via the C/BiOCl-180 photocatalyst has opened new research horizons for the investigation and application of C-C bond cleavage in biomass-based feedstocks.

carbon-carbon bond cleavagebiomass reformingC/BiOCllactic acidphotocatalysis

Zulfiqar Ali、Jiliang Ma、Dongnv Jin、Rui Cui、Runcang Sun

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Liaoning Key Lab of Lignocellulose Chemistry and Biomaterials,Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery,College of Light Industry and Chemical Engineering,Dalian Polytechnic University,Dalian 116034,China

Foundation of the NSFC-CONICFT Joint ProjectNational Natural Science Foundation of ChinaInnovation Support Program for Highlevel Talents of Dalian(Top and Leading Talents)Dalian City Outstanding Talent Project

51961125207220080182019132019RD13

2024

10.1007/s11705-023-2380-2

化学科学与工程前沿
高等教育出版社

化学科学与工程前沿

CSTPCDEI
影响因子：0.172
ISSN：2095-0179
年,卷(期)：2024.18(2)
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