In and Cu co-doped ZnS nanoparticles were successfully synthesized in DI water and ethanol solvent by a sonochemical approach using citric acid as surfactants in aqueous medium. FESEM micrographs show that In and Cu co-doped ZnS crystallites have a rough surface nanostructure and the as-synthesized photocatalysts were tested for the photocatalytic hydrogen evolution from water splitting via the irradiation of simulated sunlight. Among In and Cu co-doped ZnS products, 4In4CuZnS photocatalyst can achieve the maximum hydrogen production rate (752.7 μmol h⁻¹ g⁻¹) in 360 min under simulated sunlight illumination. Meanwhile, we separated the hydrogen and oxygen cells using an ion exchange membrane. Both electrodes (working electrode and Pt electrode) are dipped into each cell containing an aqueous solution containing 0.1 M Na₂S at pH 3 to convert water into hydrogen and oxygen under solar irradiation. As expected, the photoelectrochemical water splitting cells could significantly improve the photocatalytic activity, where the 4In4CuZnS nanoparticles shows the photoelectrochemical performance with photocurrent density of 12.2 mA cm⁻² at 1.1 V and hydrogen evolution rate of 1189.4 μmol h⁻¹ g⁻¹.

以柠檬酸为表面活性剂在水介质中通过声化学方法在去离子水和乙醇溶剂中成功合成了In和Cu共掺杂的ZnS纳米粒子。FESEM显微照片显示，In和Cu共掺杂的ZnS微晶具有粗糙的表面纳米结构，并且对合成的光催化剂进行了模拟阳光照射下水分解产生的光催化氢的测试。在In和Cu共掺杂的ZnS产品中，4In4CuZnS光催化剂可以实现最大的氢气产生率（752.7μmolh ^-1  g ^-1）在模拟阳光照射下360分钟内。同时，我们使用离子交换膜分离了氢电池和氧电池。将两个电极（工作电极和Pt电极）浸入每个单元格中，该单元格包含在pH 3下含有0.1M Na ₂ S的水溶液，以在太阳辐射下将水转化为氢和氧。正如预期的那样，光电化学水分解池可以显着提高光催化活性，其中4In4CuZnS纳米粒子 在1.1 V电压下的光电流密度为12.2 mA cm ^-2，氢释放速率为1189.4μmolh ^-1  g ^-1，显示出光电化学性能。