Functional B@mCN-assisted photocatalytic oxidation of biomass-derived pentoses and hexoses to lactic acid. Issue 19 (21st August 2020)

• Record Type: Journal Article
• Authors: Ma, Jiliang; Li, Yancong; Jin, Dongnv; Ali, Zulfiqar; Jiao, Gaojie; Zhang, Junqiang; Wang, Shuo; Sun, Runcang
• Is Part Of: Green chemistry. Volume 22:Issue 19(2020)
• Page Start: 6384
• Page End: 6392
• Publication Date: 2020-08-21
• Subjects: Environmental chemistry -- Industrial applications -- Periodicals; Environmental management -- Periodicals; 660
• DOI: 10.1039/d0gc01896a
• Languages: English
• ISSNs: 1463-9262

Abstract

Abstract : The integration of biorefining and photocatalysis is the most promising approach to enable green and efficient synthesis of biomass-based high value chemicals. Abstract : The integration of biorefining and photocatalysis is the most promising approach to enable green and efficient synthesis of biomass-based high value chemicals. Herein, a novel and functional carbon nitride photocatalyst was developed to achieve the production of lactic acid under visible-light irradiation. The doping of boron (B) and oxygen (O) atoms in the catalyst (B@ m CN- Y ) not only reduced the bandgaps, but also improved the separation efficiency of surface photoinduced charge carriers, resulting in an enhanced photocatalytic activity of B@ m CN- Y . Furthermore, the catalyst exhibited excellent activity for different biomass-based monosaccharides, and the highest yield was 92.7%. Various oxidative active species of h +, 1 O2, ˙O2 − and ˙OH all benefit the synthesis of lactic acid, while the effect of h + is superior to that of the others. The catalyst is also highly stable and recyclable, and the system for producing lactic acid has potential for amplification. The yield and conversion of a one-thousand-fold scale-up experiment retained 68.6% and 89.0% of the values of the one time experiment. This work promotes the development of photocatalytic biomass refining.