文献类型：期刊文献

英文题名：Novel Pt/CdS Schottky Junction Catalysts for Efficient and Stable Photocatalytic NADH Regeneration Through Optimized Carrier Migration and Free Radical Generation

作者：Su, Zheng[1,2];Sun, Yu[1,2];Zhang, Qi[1,2];Wang, Jia[1,2];Zhou, Wenqi[1,2];Zhou, Suyin[1,2];Zhang, Jinlong[1,2,3];Liu, Yongdi[1,2];Zhou, Liang[1,2,4];Lei, Juying[1,2,4]

机构：[1]East China Univ Sci & Technol, Natl Engn Res Ctr Ind Wastewater Detoxicat & Resou, Sch Resources & Environm Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Engn Res Ctr Multimedia Environm Catalysi, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Sch Chem & Mol Engn, Key Lab Adv Mat & Joint Int Res Lab Precis Chem &, 130 Meilong Rd, Shanghai 200237, Peoples R China;[4]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

年份：2024

卷号：154

期号：6

起止页码：2620

外文期刊名：CATALYSIS LETTERS

收录：;EI(收录号：20235215273555);WOS:【SCI-EXPANDED(收录号:WOS:001131727600001)】；

基金：This study was supported by National Natural Science Foundation of China (22006038, 22076046), and Fundamental Research Funds for the Central Universities (JKB01221619).

语种：英文

外文关键词：CdS nanorods; Pt cocatalyst; Photocatalysis; NADH regeneration; Free radical oxidation

摘要：Photocatalytic cofactor regeneration often encounters the problem of insufficient stability of reduced nicotinamide adenine dinucleotide hydrogen (NADH) regeneration due to the influence of reactive oxygen species. Here, we obtained Pt-loaded CdS nanorods (CdS NRs) with a one-dimensional (1D) rod-like structure by simple hydrothermal and photo-deposition methods. The yield of NADH improved by 52.54% within 40 min. Superoxide radical (center dot O2-) had been proven to be the main reactive species that leaded to unwanted oxidation after NADH regeneration. After loading Pt, the formation of Schottky junctions between Pt and CdS NRs promoted the separation and migration of photogenerated carriers, resulting in a tendency of center dot O2- to shift toward hydroxyl radical (center dot OH). center dot OH produces additional intermediates in the oxidation of NADH compared to center dot O2-, which inhibits the unwanted oxidation of NADH. Meanwhile, the conduction band position of Pt/CdS shifted positively and the ability to reduce O2 was weakened, thus the center dot O2- in the system was reduced, which weakened the oxidation of NADH and significantly improved the stability of NADH regeneration. These studies provide a new reference for applying loaded metal catalysts to the stable regeneration of NADH.