曹静教授、陈士夫教授、贾雪梅副教授在Applied Catalysis B: Environment and Energy上发表论文
题目:Dual structure cobalt sites on surface hydroxyl and oxygen vacancy of BiOCl for cooperative CO2 reduction and tetracycline oxidation
作者:Haoyu Sun, Haili Lin, Xuemei Jia*, Xinyue Li, Shuang Li, Xin Jin, Qianlong Wang, Shifu Chen*, Jing Cao*
单位:Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education; College of Chemistry and Materials Science, Huaibei, Anhui 235000, PR China
摘要:Metal ion cocatalysts have huge prospect for photocatalytic CO2 reduction coupled with organic decomposition because of their cost effectiveness and abundant active sites. Herein, we exploit a defect−group oriented tactic to induce dual−structured Co sites on BiOCl with rich surface hydroxyls (OHs) and oxygen vacancies (OVs) (labeled as BiO1−xCl−OH), in which the surface OHs and OVs acted as anchoring points to anchor Co2+ ions. Density functional theory calculations manifested that surface OHs anchored Co2+ ions via hydrogen bonding to produce tight OH−Co sites, meanwhile, surface OVs with unsaturated metal sites and unpaired electrons captured Co2+ ions through chemical bonding to form close−knit OV−Co site. The as−generated OV−Co and OH−Co site served as reductive and oxidative cocatalyst for CO2 reduction and tetracycline oxidation, respectively, thereby achieving high−efficiency redox activity. This work provided a novel strategy to devise progressive dual functional metal ions cocatalysts for high−efficiency CO2 reduction and organic pollutants oxidation.
影响因子:20.2
分区情况:一区
链接:https://doi.org/10.1016/j.apcatb.2024.124514
(文、图:贾雪梅 / 审核:李洪基 / 审校:韩满意 / 终审:韩满意)
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