可见光谱
催化作用
材料科学
光电子学
化学
有机化学
作者
Adugna Boke Abdeta,Feyisa Wedajo,Qinhan Wu,Dong‐Hau Kuo,Ping Li,Hanya Zhang,Ting Huang,Juan Lin,Xiaoyun Chen
标识
DOI:10.1002/adsu.202400128
摘要
Abstract Boron and nitrogen can enter the carbon lattice and provide structural disorder, porous structure, and active sites for better catalyst dispersions and activity. Herein, Bi 2 Mo 2.5 (S,O) 10 oxysulfide (BiMoOS) anchored on unmodified and surface‐modified activated carbon (AC) via B and N doping is synthesized for efficient PHER, aiming that B and N doping into carbon framework can modify the surface textural features which act as anchoring sites for the host Bi 2 Mo 2.5 (S,O) 10 and boost its photocatalytic activity by increasing specific surface area via preventing aggregation through a uniform distribution. Thus, the BiMoOS@B─N─AC catalyst achieved excellent stability and PHER performance (564.2 µmol h −1 H 2 under visible light). The doped B and N in AC create structural disorder/defects, active sites and induce electron delocalization in B─N─AC, used as the anchoring sites for BiMoOS catalysts and stimulate the adsorption and activation kinetics of the H 2 O molecules, and also provide a highly conductive network that enhances charge transport and stability of BiMoOS@B─N─AC. With the advantages of the modified B─N─AC, the oxygen vacancy‐anchored BiMoOS exhibited superb PHER. Hence, B and N co‐doping into the carbon lattice is a promising approach to enriching the anchoring site for boosting metallic nanocatalyst stability and catalytic performance.
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