博士生导师
硕士生导师
教师姓名:何作利
教师拼音名称:He Zuoli
入职时间:2019-06-14
所在单位:环境科学与工程学院
办公地点:山东大学(青岛校区) K5楼 307-1室
性别:男
联系方式:zlhe@sdu.edu.cn
职称:研究员
在职信息:在职
毕业院校:西安交通大学&美国犹他大学联合培养
学科:环境工程. 环境科学与工程
论文名称:In-situ construction of core-shell structured TiB2-TiO2@g-C3N4 for efficient photocatalytic degradation 发表刊物:Applied Surface Science 刊物所在地:Elsevier 关键字:g-C3N4, TiB2, core-Shell structure, photocatalysts, heterojunction 摘要:g-C3N4 based heterojunction photocatalysts attract much attention as degradation materials for organic pollutants due to their wide light absorption range and rich photoinduced carriers. Strategies to effectively improve photoelectron separation and transmission have become a research hotspot. Herein, a novel heterojunction TiB2TiO2@g-C3N4 photocatalyst with core–shell structure was constructed by in-situ growth of g-C3N4 on the TiB2TiO2 cores using one-step calcination method. The composite processes a higher photodegradation performance of Rhodamine B (RhB) and 4-Chlorophenol (4-CP) compared to the pure g-C3N4. The results show that the surface of TiB2-TiO2 cores contains numerous ‘TiB2 bridges’, as photoinduced carriers transport channels, which effectively accelerate photoinduced e- and h+ migration. In addition, the g-C3N4 coated on TiB2-TiO2 cores forms a Z-scheme heterojunction, which hinders the recombination of photogenerated charges resulting in a longer electron lifetime. Furthermore, the TiB2 also could act as acceptors of electrons for the formation of •O2–. The main active substances for degradation of RhB are •OH, •O2– and h+. This strategy is applicable to design highly capable heterojunction photocatalysts by constructing fast electronic transmission channels. 全部作者:Shasha Xu,Shijie Zhang,Shuguang Wang 第一作者:Huijun Yu 论文类型:期刊论文 通讯作者:Zuoli He 卷号:579 页面范围:152201 是否译文:否 发表时间:2022-01-01 收录刊物:SCI 发表时间:2022-01-01