钨钛硅酸盐聚苯胺氧化锌复合材料光催化降解龙胆紫
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摘要
研究了β_2-SiW_(11)Ti/PANI/ZnO光催化降解龙胆紫染料废水及光催化性能的影响因素。结果表明,在pH为7、初始质量浓度为10 mg/L的龙胆紫溶液中投入20 mg/L催化剂,30 W紫外灯光照140 min学方程,反应速率常数为0.011 63 min-1,线性方程拟合常数为0.994 9。
The influence factors of photocatalytic degradation of gentian violet dye wastewater byβ_2-SiW11 Ti/PANI/ZnO were studied. The experimental results showed that the degradation rate of gentian violet achieved 93.18% under the conditions of pH=7, the initial mass concentration of gentian violet 10 mg/L, catalyst 20 mg/L, ultraviolet light power 30 W, time 140 min. The photocatalytic degradation process accorded with the first-order kinetic equation. The reaction rate constant was 0.011 63 min-1, and the fitting constant of the linear equation was 0.994 9.
The influence factors of photocatalytic degradation of gentian violet dye wastewater byβ_2-SiW11 Ti/PANI/ZnO were studied. The experimental results showed that the degradation rate of gentian violet achieved 93.18% under the conditions of pH=7, the initial mass concentration of gentian violet 10 mg/L, catalyst 20 mg/L, ultraviolet light power 30 W, time 140 min. The photocatalytic degradation process accorded with the first-order kinetic equation. The reaction rate constant was 0.011 63 min-1, and the fitting constant of the linear equation was 0.994 9.
引文
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[5] LIN Y M,LI D Z,HU J H,et al.Highly efficient photocatalytic degrada?tion of organic pollutants by PANI-modified TiO2composite[J].Phys.Chem. C,2012,116(9):5 764-5 770.
[6]华英杰,徐孝南,邹晓梅,等.PW11O39Co(Ⅱ)(H2O)5-的均相及异相体系可见光催化性能研究[J].无机化学学报,2014,30(8):1 895-1 903.
[7]岳琳,王开红,郭建博,等.多金属氧酸盐电催化降解染料废水的研究[J].中国环境科学,2013,33(1):88-94.
[8]刘春丽,周宁,滕昭玉,等.硅钨杂多酸盐的制备及其光催化降解甲基橙溶液的研究[J].环境污染与防治,2017,39(7):771-774.
[9] ANDREW P,SHESHANATH B,SURESH K,et al.Combining the UV-switchability of keggin ions with a galvanic replacement process tofabricate TiO2-polyoxometalate-bimetal nanocomposites for im?proved surface enhanced Raman scattering and solar light photocatal?ysis.[J].American Chemical Society,2013,51(23):7 007-7 013.
[10] JIANG W T,WU C T,SUNG W H,et al.Room-temperature fast con?struction of out performed ZnO nanoarchitectures on nanowire-ar?ray templates for dye-sensitized solar cells[J].ACS Appl. Mater. In?terfaces,2013(5):911-917.
[11]吴镇玉,李奉杰,李村,等.ZnO-聚苯胺纳米复合材料的制备及光催化性质[J].无机化学学报,2013,29(10):2 091-2 098.
[12]马荣华,苏宁,高垒.β2-SiW11/PANI/SnO2三元复合催化剂的制备及光催化性能[J].化工新型材料,2015,43(3):35-37.
[13]马荣华,房武祥.PMoV2/PANI/TiO2复合材料的制备及光催化性能[J].化工新型材料,2012,40(12):28-30.
[14]才红,陈艳,谢绍坚.纳米氧化锌的制备和表面改性[J].无机盐工业,2010,42(6):24-26.
[15]马荣华,马玲,瞿伦玉.钛取代的钨硅杂多配合物位置异构体的合成、表征及催化性能[J].应用化学,2004,21(3):56-60.