One-pot calcination synthesis of Cd0.5Zn0.5S/g-C3N4 photocatalyst with a step-scheme heterojunction structure
One-pot calcination synthesis of Cd0.5Zn0.5S/g-C3N4 photocatalyst with a step-scheme heterojunction structure
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一锅法煅烧合成阶梯式异质结结构Cd0.5Zn0.5S/g-C3N4光催化剂
DOI：
10.1016/j.jmst.2020.03.034
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发表时间：
2020-04
影响因子：
10.9
通讯作者：
吕康乐
中科院分区：
文献类型：
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作者：
秦东冉;李覃;杨超;秦艳敏;吕康乐
通过对镉锌硫脲三明治结构前驱体进行一锅退火，制备了Cd0.5Zn0.5S/g-C3 N4（CZS/CN）阶梯状异质结复合材料。本工作尽量简化了所用原料的种类和制备工艺。与纯Cd 0. 5 Zn 0. 5S和g-C3 N4相比，该杂化材料具有更大的比表面积和更高的载流子分离/转移效率，从而在可见光照射下具有更高的光催化降解染料的效率。对Cd_（0.5）Zn_（0.5）S与g-C_3 N_4之间形成的阶梯结构（S结构）异质结的界面电荷转移机理进行了研究和讨论。该研究拓宽了CdxZn 1-xS/g-C3 N4复合材料的应用前景，并为设计和制备具有良好光催化性能的新型异质结提供了新的思路。
Cd0.5Zn0.5S/g-C3N4(CZS/CN) step-like heterojunction composites were facilely synthesized by annealing a sandwich of cadmium−zinc−thiourea precursors in one pot. The types of the used raw materials and the preparation procedure were simplified as much as possible in this work. The obtained hybrid exhibited enlarged specific surface area and higher separation/transfer efficiency of charge carriers compared to pure Cd0.5Zn0.5S and g-C3N4, thus exhibited much enhanced photocatalytic efficiency for dye degradation under visible-light irradiation. The interfacial charge-transfer mechanism of the formed step-scheme (S-scheme) heterojunction between Cd0.5Zn0.5S and g-C3N4were carefully investigated and discussed. This work could widen the application prospect of the CdxZn1–xS/g-C3N4composite and provide new ideas to the design and fabrication of novel heterojunctions with robust photocatalytic performance.
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通讯作者：
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影响因子：
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影响因子：
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