摘要
为了进一步提高Cu2ZnSnS4的光催化制氢性能,首先通过水热法制备出Cu2ZnSnS4光催化材料,在此基础上加入Cd(CH3COO)2·2H2O和Na2S进行二次水热反应制备Cu2ZnSnS4-CdS复合材料。通过XRD、SEM、TEM、Raman及XPS等分析测试方法对Cu2ZnSnS4-CdS复合材料的物相结构、微观形貌和元素价态进行了表征。结果表明:成功制备了结晶性能较好的Cu2ZnSnS4-CdS复合材料。Cu2ZnSnS4-CdS复合材料是由球状和块状颗粒组成;Cu2ZnSnS4-CdS复合材料表面>95%的Cd和S原子(原子比为1∶1)的存在说明块状颗粒Cu2ZnSnS4表面生长的球形颗粒为CdS;在氙灯下的光催化制氢性能表明,Cu2ZnSnS4-CdS复合材料的光催化制氢效果明显优于Cu2ZnSnS4和CdS,产氢效率为296.17μmol(g·h)-1。
In order to improve the performance for photocatalytic hydrogen production of Cu2ZnSnS4,the Cu2ZnSnS4photocatalytic materials were made by hydrothermal method,then Cu2ZnSnS4-CdS composite was made by adding Cd(CH3COO)22H2O and Na2S by hydrothermal method again.XRD,SEM,TEM,Raman and XPS were used to characterize the structure,morphology and the valence of elements of Cu2ZnSnS4-CdS composite.And the pohotocatalytic hydrogen production was test in xenon lamp.The results show that Cu2ZnSnS4-CdS composite is successfully prepared with better crystallization properties.The Cu2ZnSnS4-CdS composite is made with blocky granular and spheric particles.More than 95%of the Cd and S atoms(atomic ratio of 1∶1)in the Cu2ZnSnS4-CdS composite surface show that the spheric particles are CdS which are grown on the furface of Cu2ZnSnS4.The results show that the pohotocatalytic hydrogen production of Cu2ZnSnS4-CdS composite is about 296.17μmol(g·h)-1,whitch is better than Cu2ZnSnS4and CdS.
作者
路彦丽
王靖宇
王建省
张文丽
曾雄丰
LU Yanli;WANG Jingyu;WANG Jiansheng;ZHANG Wenli;ZENG Xiongfeng(College of Material Science and Engineering,North China University of Science and Technology,Tangshan 063210,China)
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2019年第9期2169-2175,共7页
Acta Materiae Compositae Sinica
基金
河北省自然科学基金钢铁联合基金(E2015209278)
河北省高等学校科学技术研究项目(QN2017117)
