In this paper, the new composite material Co–Mo–S/Ni(OH)₂ has high hydrogen evolution ability under photoreaction, the hydrogen evolution of Co–Mo–S/Ni(OH)₂ composite material reaches 357 μmol after reaction 3 h, and the catalyst still exhibits high photocatalytic activity after four cycles under light response. It shows that this new catalyst has high activity and stability. The results of XPS, TEM, SEM and XRD indicate that the composite catalyst is successfully synthesized. The results of PL and electrochemical experiments show that Ni(OH)₂ attached to Co–Mo–S can increase the transfer of photogenerated electrons and reduce the recombination of electrons and holes. From the UV–visible and BET characterization, the presence of Ni(OH)₂ increases the range of response of the Co–Mo–S to sunlight, the pore volume and surface range, which improves the absorption capacity of the catalyst for ErB. Therefore, Co–Mo–S/Ni(OH)₂ has excellent application prospect.

本文中，新型复合材料Co–Mo–S / Ni（OH）₂在光反应下具有很高的析氢能力，反应3后，Co–Mo–S / Ni（OH）₂复合材料的析氢达到357μmol。 h，并且在光响应下四个循环后，该催化剂仍表现出高的光催化活性。表明该新型催化剂具有较高的活性和稳定性。XPS，TEM，SEM和XRD的结果表明该复合催化剂已成功合成。PL和电化学实验的结果表明，附着在Co-Mo-S上的Ni（OH）₂可以增加光生电子的转移，并减少电子与空穴的复合。从紫外可见光和BET表征，Ni（OH）₂的存在增加了Co-Mo-S对日光的响应范围，孔体积和表面范围，从而提高了催化剂对ErB的吸收能力。因此，Co-Mo-S / Ni（OH）₂具有很好的应用前景。