【摘要】 采用溶剂热法合成了具有分级花状结构的二元金属硫化物ZnIn2S4。该合成以硝酸铟为铟源、醋酸锌为锌源、以半胱氨酸盐酸盐作为硫源、以乙醇和甘油为溶剂,在160℃条件下反应12 h得到了六方晶相分级花状ZnIn2S4微球。改变反应体系的温度和时间可以调控ZnIn2S4的形貌和尺寸,并对其生长机理进行了探讨。所合成的ZnIn2S4微球具有多孔结构和较大的比表面积,在负载1%(质量分数)的Pt之后表现出较高的可见光解水析氢性能,产氢量可达82.5μmol·h-1,并具有较好的循环稳定性。更多还原

【Abstract】 Ternary metal sulfide ZnIn2S4 with flower-like hierarchical structure was synthesized by a simple solvothermal method. In the experiment,In(NO)3·4. 5H2 O was used as an indium source,Zn(AC)2·2H2O as a zinc source,L-cysteine hydrochloride as a sulfur source,ethanol and glycerin as solvent,hexagonal phase,fluffy flower-like ZnIn2S4 microspheres were prepared at 160 ℃ for 12 h. Morphology and size of the microspheres changed with the temperature and reaction time of the system. The growth mechanism was studied. The synthesized flower-like catalyst with porous structure and a high specific surface area exhibited an excellent performance in hydrogen evolution under visible light irradiation after 1%(wt%) Pt loaded. The hydrogen yield could reach 82. 5 μmol·L- 1. Meanwhile,the catalyst had good cycle stability.更多还原