何作利

(研究员)

 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

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Diaza-substitution on dibenzothiophene sulfone-based linear conjugated polymers for highly efficient visible-light photo-catalytic hydrogen evolution via substituted-position optimization

发布时间:2022-08-08 点击次数:

论文名称:Diaza-substitution on dibenzothiophene sulfone-based linear conjugated polymers for highly efficient visible-light photo-catalytic hydrogen evolution via substituted-position optimization
发表刊物:Dyes and Pigments
刊物所在地:Elsevier
摘要:Two linear conjugated polymers (FSO-TPmT and FSO-TPzT) were synthesized based on dibenzothiophene sulfone and diaza-substituted thiophene-benzene-thiophene with different substituted positions (1,3-diaza-substitution and 1,4-diaza-substitution) for photo-catalytic hydrogen evolution. The 1,2-diaza-substituted polymer (FSO-TPaT) reported from previous work was also used for comparison. The diaza-substitution significant affected the optical properties, exciton lifetime, charge transport resistance, photo-current response, and thus photo-catalytic performances. Conjugated polymers with 1,3-diaza-substitution exhibited the best photo-catalytic performances with the hydrogen evolution rates (HERs) of 7645 μmol g−1 h−1 and 7280 μmol g−1 h−1 under UV–Vis (>295 nm) and visible light (>420 nm) irradiation, respectively. Moreover, the photo-catalytic performance was further optimized by loading 3 wt% Pt with a HER of 9828 μmol g−1 h−1. The apparent quantum yields were 5.8% and 3.9% at 420 nm and 500 nm, respectively. These results indicated that the conjugated polymer with 1,3-diaza-substitution was mainly active under visible light and should be an excellent visible-light photo-catalyst for hydrogen evolution from water.
全部作者:Meng Dai,Ruikun Chen,Yunsheng Ding
第一作者:Shuyu Fang
论文类型:期刊论文
通讯作者:Zuoli He,Guobing Zhang
学科门类:工学
一级学科:环境科学与工程
文献类型:J
卷号:207
页面范围:110645
字数:4000
是否译文:
发表时间:2022-08-01
收录刊物:SCI
发表时间:2022-08-01