Fenton反应助催化剂碳基黄铁矿型纳米二硫化钴的合成

以水热与化学气相沉积方法制备了碳基黄铁矿型纳米CoS2薄膜,对其组成、形貌进行了表征,并对其Fenton反应助催化性能进行了研究。实验结果表明:在罗丹明B模拟废水的Fenton处理过程中,添加CoS2助催化剂的Fenton体系具有更高的反应活性,20s内的脱色率达到98%,相比于普通Fenton体系的反应速率提高了近3倍;在类Fenton体系中的反应速率最高增加了约350%。CoS2的加入显著提高了H2O2的利用效率以及催化氧化反应的反应速率。

Synthesis of Fenton reaction cocatalyst carbon-based pyrite-type nano cobalt disulfide

The carbon-based pyrite-type nano-CoS₂ thin films were prepared by hydrothermal and chemical vapor deposition methods. The composition and morphology of the carbon-based pyrite-type nano-CoS₂ thin films were characterized,and their cocatalytic performance for Fenton reaction was studied. The experimental results show that：The Fenton system with CoS₂ cocatalyst has higher reaction activity in Fenton treatment of Rhodamine B simulated wastewater,and the decolorization rate in 20 s is 98%,which is nearly 3 times higher than that of ordinary Fenton system;The highest reaction rate of the Fenton-like system increased by about 350%. The addition of CoS₂ significantly increases the utilization efficiency of H₂O₂ and the reaction rate of the catalytic oxidation reaction.