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以杂多酸盐β_2-K_6[SiW_(11)Cr(H_2O)O_(39)]·xH_2O为掺杂剂制得十一钨铬硅酸盐/聚苯胺(β_2-SiW_(11)Cr/PANI)掺杂材料,采用红外光谱、紫外光谱、XRD、EDS和SEM等方法对产物的结构进行表征,以龙胆紫溶液为模拟工业染料废水,考察了其光催化性能的影响因素。实验表明,β_2-SiW_(11)Cr/PANI光催化降解龙胆紫的最佳条件是:催化剂用量60mg/L,pH值为3,染料溶液初始浓度为15mg/L,紫外灯光照190min,脱色率可达98.28%。光催化降解龙胆紫为拟一级动力学反应。
The eleven wolfram chlorate / polyaniline (β_2-SiW_ (11) Cr / PANI was prepared from heteropolyacid salt β_2-K_6 [SiW_ (11) Cr (H_2O) O_ (39)] · xH_2O ) Doped materials. The structure of the product was characterized by IR, UV, XRD, EDS and SEM. The gentian violet solution was used as simulated industrial dye wastewater. The influencing factors of its photocatalytic activity were investigated. The experimental results showed that the optimal conditions for the photocatalytic degradation of gentian violet by β_2-SiW_ (11) Cr / PANI were as follows: catalyst dosage 60mg / L, pH value 3, initial dye solution concentration 15mg / L, Rate up to 98.28%. Photocatalytic degradation of gentian violet as a first-order kinetic reaction.