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The visible light-driven highly efficient photocatalytic properties of Cu2ZnSnS4 nanoparticles synthesized by a hydrothermal method
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2020-12-14 , DOI: 10.1039/d0nj05250g Zhangchen Hou 1, 2, 3, 4 , Yufang Li 1, 2, 3, 4 , Jinsong Liu 1, 2, 3, 4 , Honglie Shen 1, 2, 3, 4 , Xiaomin Huo 1, 2, 3, 4
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2020-12-14 , DOI: 10.1039/d0nj05250g Zhangchen Hou 1, 2, 3, 4 , Yufang Li 1, 2, 3, 4 , Jinsong Liu 1, 2, 3, 4 , Honglie Shen 1, 2, 3, 4 , Xiaomin Huo 1, 2, 3, 4
Affiliation
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Cu2ZnSnS4 (CZTS) is a narrow band gap, non-toxic, environmentally friendly semiconductor photocatalytic material. Cu2ZnSnS4 nanoparticles were synthesized by a hydrothermal method at different temperatures. XRD and Raman results showed that CZTS with a high crystallinity kesterite structure was successfully prepared. Photoelectrochemical tests showed that CZTS is a p-type semiconductor with a band gap of 1.5 eV, and its photocurrent density could attain 0.3271 μA cm−2. It was found that CZTS had good photocatalytic activity for RhB via the photocatalysis of Rhodamine B (RhB) degradation with CZTS nanoparticles under visible light. The degradation efficiency of RhB by CZTS reached 98.20% within 90 min, and the degradation rate was about 0.02905 min−1. The photocatalytic degradation mechanism of CZTS was studied through free radical capture experiments, and results showed that photo-generated electrons could react with O2 and H2O in the solution to form ˙OH, which degraded RhB into H2O and CO2.
中文翻译：
水热法合成Cu2ZnSnS4纳米粒子的可见光驱动高效光催化性能
Cu 2 ZnSnS 4（CZTS）是一种窄带隙，无毒，环保的半导体光催化材料。通过水热法在不同温度下合成了Cu 2 ZnSnS 4纳米粒子。XRD和Raman结果表明，成功制备了具有高结晶度的方石英石结构的CZTS。光电化学测试表明，CZTS是带隙为1.5 eV的p型半导体，其光电流密度可以达到0.3271μAcm -2。结果发现，CZTS具有良好的光催化活性，罗丹明B通过CZTS纳米粒子在可见光下对罗丹明B（RhB）的光催化降解。CZTS对RhB的降解率在90min内达到98.20％，降解率约为0.02905min -1。通过自由基捕获实验研究了CZTS的光催化降解机理，结果表明，光生电子可以与溶液中的O 2和H 2 O反应形成˙OH，从而将RhB降解为H 2 O和CO 2。
更新日期：2021-01-12
中文翻译：
水热法合成Cu2ZnSnS4纳米粒子的可见光驱动高效光催化性能
Cu 2 ZnSnS 4（CZTS）是一种窄带隙，无毒，环保的半导体光催化材料。通过水热法在不同温度下合成了Cu 2 ZnSnS 4纳米粒子。XRD和Raman结果表明，成功制备了具有高结晶度的方石英石结构的CZTS。光电化学测试表明，CZTS是带隙为1.5 eV的p型半导体，其光电流密度可以达到0.3271μAcm -2。结果发现，CZTS具有良好的光催化活性，罗丹明B通过CZTS纳米粒子在可见光下对罗丹明B（RhB）的光催化降解。CZTS对RhB的降解率在90min内达到98.20％，降解率约为0.02905min -1。通过自由基捕获实验研究了CZTS的光催化降解机理，结果表明，光生电子可以与溶液中的O 2和H 2 O反应形成˙OH，从而将RhB降解为H 2 O和CO 2。
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