文献类型：期刊文章

作　　者：陈欢欢[1,2] 罗绍华[1,2] 雷雪飞[1,2] 滕飞[1,2] 纪献兵[3] 李晓东[1]

Huan-huan CHEN;Shao-hua LUO;Xue-fei LEI;Fei TENG;Xian-bing JI;Xiao-dong LI(School of Materials Science and Engineering,Northeastern University,Shenyang 110819,China;Key Laboratory of Dielectric and Electrolyte Functional Materials of Hebei Province,Northeastern University at Qinhuangdao,Qinhuangdao 066004,China;Department of Environmental Engineering,Hebei University of Environmental Engineering,Qinhuangdao 066102,China)

机构地区：[1]东北大学材料科学与工程学院,沈阳110819 [2]东北大学秦皇岛分校河北省电介质与电解质功能材料重点实验室,秦皇岛066004 [3]河北环境工程学院环境工程系,秦皇岛066102

出　　处：《Transactions of Nonferrous Metals Society of China》

基　　金：supported by the National Natural Science Foundation of China (Nos.52274295,52104291,51874079);the Natural Science Foundation of Hebei Province,China (Nos.E2022501028,E2022501029,E2021501029,A2021501007,E2018501091,E2020501001,E2022501030);the Hebei Province Key Research and Development Plan Project,China (No.19211302D);Performance Subsidy Fund for Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province,China (No.22567627H);the Fundamental Research Funds for the Central Universities,China (Nos.N2223009,N2223010,N2123035,N2023040);the Science and Technology Project of Hebei Education Department,China (No.ZD2022158);the Central Guided Local Science and Technology Development Fund Project of Hebei Province,China (No.226Z4401G).

年　　份：2024

卷　　号：34

期　　号：6

起止页码：1951-1964

语　　种：中文

收录情况：AJ、CAS、CSCD、CSCD2023_2024、EAPJ、EBSCO、EI、INSPEC、JST、SCIE、SCOPUS、WOS、ZGKJHX、普通刊

摘　　要：采用简单微波回流法和均相沉淀技术合成CuO/CeO_(2) p−n异质结复合材料,并对其光催化降解亚甲基蓝溶液的性能进行研究。CuO/CeO_(2)异质结复合材料的降解效率明显强于CeO_(2)。结果表明,以Cu/Ce摩尔比为1/3制备的复合材料(1/3 Cu/Ce)的光催化活性最高,在180 min内降解效率达到96.2%。CuO和CeO_(2)之间形成的p−n异质结促进了光生载流子的分离和传输,从而提高了其光催化活性。计算了CuO/CeO_(2)异质结的能带位置偏移,其价带偏移(∆EVBO)为1.58 eV,导带偏移(∆ECBO)为−0.48 eV。计算结果进一步证明CuO与CeO_(2)之间形成了p−n异质结。

关 键 词：CUO CeO_(2)  p−n异质结  光催化机理  亚甲基蓝

分 类 号：O643.36] O644.1[化学类]