Effect of Pb2+ Doping on Band Gap of Cd1-xZnxS Solid Solution and Photocatalytic Water Splitting Activity

邢婵娟; 郭烈锦

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Effect of Pb²⁺ Doping on Band Gap of Cd_1-xZn_xS Solid Solution and Photocatalytic Water Splitting Activity

更新时间：2025-12-08

- Effect of Pb²⁺ Doping on Band Gap of Cd_1-xZn_xS Solid Solution and Photocatalytic Water Splitting Activity
- Vol. 42, Issue 1, Pages: 110-113(2008)
- 作者机构：
  
  西安交通大学动力工程多相流国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TQ426.64
- Online First：10 January 2008，
  
  Published：2008
- 稿件说明：
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邢婵娟, 郭烈锦. Effect of Pb²⁺ Doping on Band Gap of Cd_1-xZn_xS Solid Solution and Photocatalytic Water Splitting Activity[J]. 2008, 42(1): 110-113.
DOI：

邢婵娟, 郭烈锦. Effect of Pb²⁺ Doping on Band Gap of Cd_1-xZn_xS Solid Solution and Photocatalytic Water Splitting Activity[J]. 2008, 42(1): 110-113. DOI：

摘要

采用共沉淀法制备了Pb

掺杂的Cd

0.2

0.8

S及Cd

0.8

0.2

S固溶体光催化剂.实验结果表明

掺杂的宽带隙固溶体Cd

0.2

0.8

S在6s轨道与固溶体的价带杂化后提升了价带位置

降低了半导体的带隙

因而提高了产氢活性.当Pb

掺杂窄带隙固溶体Cd

0.8

0.2

S后

形成固溶体价带附近的杂质能级

并成为光生电子空穴复合中心

因而不能提高产氢性能.因此

对半导体的可见光改性仅适用于较宽带隙的半导体.

Abstract

doped Cd

0.2

0.8

S and Cd

0.8

0.2

S were prepared with coprecipitation method. The results indicate that the valence band of Cd

0.2

0.8

S solid solution with wide band gap is heightened by the Pb 6s level hybridization with valence band

and the photocatalytical hydrogen evolution ability is improved. When Pb

is doped in Cd

0.8

0.2

S solid solution with narrow band gap

it acts as a recombination center and is unable to improve water splitting activity of the catalyst. So the doping of Pb

is effective only for the

semiconductor with wide band gap.

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Keywords

references

LINSEBIGLER A L, LU Guangquan, YATES J T. A novel composite photocatalyst for water splitting hydrogen production[J]. J Power Sources, 2006, 159(2): 1305-1309.

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