摘要
采用超声波-纳米TiO_2光催化协同降解对氨基苯磺酸废水,考察了溶液初始pH、初始浓度、降解时间、催化剂用量、不同降解工艺等对溶液降解效果的影响。结果表明,利用超声波-光催化法能够有效降解对氨基苯磺酸废水,二者具有协同作用。在中性条件下,当纳米TiO_2的投入量达0.06g/L、紫外光强20μW/cm^2、声波功率为80W、频率为20k Hz,2小时后降解率可达93.87%。
P-aminobenzene sulfonic acid wastewater was degraded by ultrasonic irradiation combined with photocatalysis and nano-TiO_2. The influences of initial solution p H and concentration of p-aminobenzene sulfonic acid,degradation time,catalyst dosage and processes degradation effect of p-aminobenzene sulfonic acid were investigated. Results show that p-aminobenzene sulfonic acid can be effectively degraded through ultrasonic irradiation combined with photocatalysis and nano-TiO_2. The combination of ultrasonic irradiation and photocatalysis had synergistic action. P-aminobenzene sulfonic acid with different concentrations can be effectively degraded after 2 h ultrasonic irradiation in the presence of 0. 06 g/L nano-TiO_2 photocatalyst under neutral acidic condition when the intensity of UV light is 20 W/cm^2,the acoustic power is 80 W,frequency is 20 k Hz and the maximum degradation rate is as much as 93. 87%.
作者
钟先锦
刘修树
方丽波
贾贞贞
ZHONG Xian - jin, LIU Xiu - shu, FANG Li - bo, JIA Zhen - zhen(Hefei Vocational College of Technology,Chaohu 238000 Chin)
出处
《新余学院学报》
2018年第3期18-21,共4页
Journal of Xinyu University
基金
安徽省教育厅2016年自然科学研究重点项目"超声波-光催化联合降解水溶液中对氨基苯磺酸的研究"(KJ2016A620)
安徽省教育厅2016年自然科学研究重点项目"海金沙不同溶剂提取物对大鼠烫伤创面愈合效果对比及效果成分相关性研究"(KJ2016A614)
安徽省教育厅2016年教学研究重点项目"药物化学教学团队"(2016jxtd103)
关键词
超声波
光催化
对氨基苯磺酸
降解
ultrasonic wave
photocatalysis
p - aminobenzene sulfonic acid
degradation
