Y_2O_3/WO_3光催化降解溴酚蓝染料的研究

采用光催化剂Y2O3/WO3对含溴酚蓝染料废水的处理进行了研究,探讨了光催化剂作用机理,讨论了光催化剂组成、用量、试液pH值、光照时间与溴酚蓝染料溶液脱色率的关系。结果表明,当w(Y2O3)=1.5%、50mL时试液的起始质量浓度为20mg/L,催化剂用量为0.400g,pH=7.0,光照6h时溴酚蓝染料溶液的脱色率可达96.8%。

Degradation of BPB in photocatalysis enhanced by photosensitizer

The treatment of wastewater containing bromphenol blue （BPB） by WO3/α-Fe203 was studied. Reaction mechanism of photocatalysis enhanced by photosensitizer was probed. The relationships between the composition of heterogeneous photocatalyst, the starting concentration of BPB, amount of photocatalyst, pH, amount of H2O2, illumination time and the decoloring rate of BPB were discussed. The results show that the decoloring rate of BPB can reach 99.1% by using WO3/α-FeaO3 as heterogeneous photocatalyst, with the composition of m（WO3）：m（α-Fe2O3 ）=3：1, the initial concentration of BPB = 15mg/L, the amount of catalyst = 0.300 g, pH= 6.3, the amount of H2O2 =0.2 mL, and the illumination time = 6 h.

WO_3/CeO_2对溴酚蓝的光催化降解性能

用复相光催化剂WO3/CeO2对含溴酚蓝的水溶液处理进行了研究。探讨了光催化剂作用机理,讨论了光催化剂的配比、溴酚蓝的起始浓度、光催化剂的用量、试液的pH值、双氧水的用量、光照时间与溴酚蓝溶液脱色率的关系。实验结果表明:催化剂配比WO3∶CeO2=3∶1,试液溴酚蓝起始浓度为10mg/L,催化剂用量为0.400g,pH=6.3,双氧水的用量为0.20mL,光照6h,溴酚蓝溶液的脱色率可以达到95.5%。

WO_3/α-Fe_2O_3对溴酚蓝的光催化降解性能

用复相光催化剂WO3/α-Fe2O3对含溴酚蓝的水溶液处理进行了研究。探讨了光催化剂作用机理,讨论了光催化剂的配比、试液的起始浓度、光催化剂的用量、试液的pH值、双氧水的用量、光照时间与溴酚蓝溶液脱色率的关系。实验结果表明:催化剂配比WO3/α-Fe2O3=3∶1、试液起始浓度为15mg/L、催化剂用量为0.300g、pH=6.3、双氧水的用量为0.20mL、光照6h,溴酚蓝溶液的脱色率可以达到99.1%。