One-dimensional core-shell Zn0.1Cd0.9S/Snln4S8 heterojunction for enhanced visible light photocatalytic degradation

被引：127

作者：

Tang, Yunxiang ^{[1
]}

Zhang, Xin ^{[1
]}

Ma, Yuxue ^{[1
]}

Wang, Xiaotong ^{[1
]}

Su, Changhua ^{[1
]}

Zhang, Dafeng ^{[1
]}

Pu, Xipeng ^{[1
]}

Geng, Yanling ^{[2
]}

机构：

[1] Liaocheng Univ, Shandong Prov Key Lab Chem Energy Storage & Novel, Sch Mat Sci & Engn, Liaocheng 252000, Shandong, Peoples R China

[2] Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, State Key Lab Base Ecochem Engn, Qingdao 266042, Shandong, Peoples R China

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2020年 / 230卷

关键词：

Core-shell; Zn0.1Cd0.9S/Snln(4)S(8); Photocatalytic degradation; Visible light; HYDROGEN-PRODUCTION; H-2; EVOLUTION; HYDROTHERMAL FABRICATION; EFFICIENT; NANOCOMPOSITES; NANOPARTICLES; CONSTRUCTION; COMPOSITES; WATER; ZNO;

D O I：

10.1016/j.seppur.2019.115896

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Efficient separation of photogenerated charge carriers is vitally significant in the photocatalytic reaction process. In this work, a novel Zn0.1Cd0.9S/Snln(4)S(8) (ZCS/SIS) core-shell nanorods photocatalyst was prepared by a facile solvothermal method. The photocatalytic activity of the as-synthesized samples were evaluated by the degradation of Rhodamine B (RhB) and imidacloprid (IM) under visible light irradiation. Compared with the pristine ZCS and SIS, the core-shell composites displayed dramatically improved photocatalytic activity. The apparent rate constants of RhB and IM photodegradation over ZCS/SIS are 5.07 and 16.9 time higher than that of pure ZCS, respectively. In addition, the electrochemical measurements indicate that the charge carriers separation in ZCS/SIS core-shell composites is enhanced. The reason could be the formation of the core-shell ZCS/SIS heterojunction boosting the charge carriers separation and transfer. Besides, a possible photocatalytic mechanism was proposed.

引用

页数：9

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