Effects of Zn2+ and Pb2+ dopants on the activity of Ga2O3-based photocatalysts for water splitting
文献类型：期刊论文
| 作者 | Wang, Xiang; Shen, Shuai; Jin, Shaoqing; Yang, Jingxiu; Li, Mingrun; Wang, Xiuli; Han, Hongxian; Li, Can |
| 刊名 | physical chemistry chemical physics
 |
| 出版日期 | 2013 |
| 卷号 | 15期号:44页码:19380-19386 |
| 产权排序 | 待补充 |
| 通讯作者 | 李灿 |
| 合作状况 | 英 |
| 英文摘要 | zn-doped and pb-doped beta-ga2o3-based photocatalysts were prepared by an impregnation method. the photocatalyst based on the zn-doped beta-ga2o3 shows a greatly enhanced activity in water splitting while the pb-doped beta-ga2o3 one shows a dramatic decrease in activity. the effects of zn2+ and pb2+ dopants on the activity of ga2o3-based photocatalysts for water splitting were investigated by hrtem, xps and time-resolved ir spectroscopy. a znga2o4-beta-ga2o3 heterojunction is formed in the surface region of the zn-doped beta-ga2o3 and a slower decay of photogenerated electrons is observed. the znga2o4-beta-ga2o3 heterojunction exhibits type-ii band alignment and facilitates charge separation, thus leading to an enhanced photocatalytic activity for water splitting. unlike zn2+ ions, pb2+ ions are coordinated by oxygen atoms to form polyhedra as dopants, resulting in distorted surface structure and fast decay of photogenerated electrons of beta-ga2o3. these results suggest that the pb dopants act as charge recombination centers expediting the recombination of photogenerated electrons and holes, thus decreasing the photocatalytic activity. |
| WOS标题词 | science & technology ; physical sciences |
| 学科主题 | 物理化学 |
| 类目[WOS] | chemistry, physical ; physics, atomic, molecular & chemical |
| 研究领域[WOS] | chemistry ; physics |
| 关键词[WOS] | visible-light irradiation ; resolved infrared-absorption ; bond-valence determination ; pb(ii) sorption products ; surface complexation ; hydrogen-production ; o-2 evolution ; natao3 photocatalysts ; srtio3 photocatalysts ; ga2o3 photocatalyst |
| 收录类别 | SCI |
| 资助信息 | 1，1 |
| 原文出处 | 19386 |
| 语种 | 英语 |
| WOS记录号 | WOS:000326220000034 |
| 公开日期 | 2014-09-11 |
| 源URL | [http://159.226.238.44/handle/321008/119573]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xiang,Shen, Shuai,Jin, Shaoqing,et al. Effects of Zn2+ and Pb2+ dopants on the activity of Ga2O3-based photocatalysts for water splitting[J]. physical chemistry chemical physics,2013,15(44):19380-19386. |
| APA | Wang, Xiang.,Shen, Shuai.,Jin, Shaoqing.,Yang, Jingxiu.,Li, Mingrun.,...&Li, Can.(2013).Effects of Zn2+ and Pb2+ dopants on the activity of Ga2O3-based photocatalysts for water splitting.physical chemistry chemical physics,15(44),19380-19386. |
| MLA | Wang, Xiang,et al."Effects of Zn2+ and Pb2+ dopants on the activity of Ga2O3-based photocatalysts for water splitting".physical chemistry chemical physics 15.44(2013):19380-19386. |
入库方式： OAI收割
来源：大连化学物理研究所
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