辽宁石油化工大学学报2026，Vol.46Issue(3)：33-41,9.DOI:10.12422/j.issn.1672-6952.2026.03.005
基于金属有机框架热解的Co掺杂TiO2的制备及其光催化性能
Synthesis of Co-Doped TiO2 via Pyrolysis of Metal Organic Framework for Photoelectrocatalysis Performance
摘要
Abstract
Semiconductor doping can promote the photoelectrocatalytic application of semiconductor materials by constructing impurity energy levels and reducing the band gap.In this paper,we designed a preparation method for metal-doped semiconductor materials.The transition metal Co was combined with the anionic ligand of the metal-organic framework(MOF)MIL-125 through coordination.Then,the Co-doped TiO2 was obtained through pyrolysis,and its performance in photocatalysis was studied.The results showed that the co-doped TiO2 exhibits a high photocurrent density(9.87 μA/cm2),which is 3.8 times of the undoped TiO2.Meanwhile,the degradation reaction rate constant also significantly increases from 0.041 min⁻¹ before doping to 0.063 min⁻¹ after doping.The incorporation of Co species not only extends the visible-light absorption edge of TiO2 but also introduces well-defined impurity energy levels within its bandgap,thereby facilitating efficient separation and migration of photogenerated charge carriers while significantly suppressing electron-hole recombination.关键词
MOF热解/Co掺杂/TiO2/光电催化Key words
MOF pyrolysis/Co-doped/TiO2/Photoelectrocatalysis分类
化学化工引用本文复制引用
王兆阳,郭定科,陈常东,王芳芳..基于金属有机框架热解的Co掺杂TiO2的制备及其光催化性能[J].辽宁石油化工大学学报,2026,46(3):33-41,9.基金项目
教育部"春晖计划"合作科研项目(2020703-8) （2020703-8）
国家留学基金委公派访问学者面上项目(CSC202008210025) （CSC202008210025）
辽宁省教育厅项目(JYTMS20231424). （JYTMS20231424）
