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以取代型杂多酸盐Na7Co(H2O)CrW11O39.14H2O为光催化剂。在紫外灯辐射下,研究了模拟染料废水孔雀石绿的光催化降解的反应,讨论了催化剂投加量、孔雀石绿的初始质量浓度、溶液的pH值等对孔雀石绿降解率的影响。结果表明,孔雀石绿溶液光催化降解的最佳条件为:pH值为2,催化剂投加量为2 mg,孔雀石绿的初始质量浓度为5 mg/L,经15 W紫外灯照射1 h后,其降解率为90.94%。
The substituted heteropoly acid salt Na7Co (H2O) CrW11O39.14H2O was used as photocatalyst. Under ultraviolet lamp irradiation, the reaction of photocatalytic degradation of malachite green in simulated dye wastewater was studied. The effects of catalyst dosage, initial mass concentration of malachite green, and pH value of solution on the degradation rate of malachite green were discussed. The results showed that the optimal conditions for the photocatalytic degradation of malachite green solution were as follows: the pH value was 2, the dosage of catalyst was 2 mg, the initial mass concentration of malachite green was 5 mg / L, After the degradation rate of 90.94%.