摘要
采用化学沉积法制备了P25型和金红石型载银二氧化钛纳米材料,并对其进行了结构表征。探索了以此种材料为催化剂,在自然光和紫外光条件下对硝基苯溶液的降解效率,考察了材料的催化性能及其催化体系对硝基苯降解效率的影响。研究结果表明,在20℃,紫外光催化下,Ag/TiO 2光催化材料的投加量为0.16 g/L、H 2O 2浓度为0.25 mmol/L、硝基苯浓度为19.67 mg/L时,硝基苯的降解率可达82.4%,说明Ag/TiO 2是一种新型的多功能催化材料。
The silver-doped Titanium dioxide nanomaterials with P25 type and rutile type were prepared by chemical deposition method and their structures were characterized.The degradation efficiency of nitrobenzene solution under natural and ultraviolet light conditions was explored with the materials as a catalyst.The catalytic properties of the materials and the influence of the catalytic system on the degradation rate of nitrobenzene were investigated.The results show that under ultraviolet photo catalysis in 20℃,the degradation rate of nitrobenzene is 82.4%when the dosage of Ag/TiO 2 photocatalytic material is 0.16 g/L and the concentration of H 2O 2 and nitrobenzene is 0.25 mmol/L and 19.67 mg/L respectively.This explains that Ag/TiO 2 is a new type of multi-functional catalytic material.
作者
饶艳英
魏红帆
熊依凌
李章良
RAO Yanying;WEI Hongfan;XIONG Yiling;LI Zhangliang(College of Environmental and Biological Engineering,Putian University,Putian Fujian 351100,China;Fujian Provincial Key Laboratory of Ecology-toxicological Effects&Control for Emerging Contaminants,Putian Fujian 351100,China;Key Laboratory of Ecological Environment and Information Atlas,Fujian Provincial University,Putian Fujian 351100,China)
出处
《莆田学院学报》
2020年第5期22-28,共7页
Journal of putian University
基金
福建省自然科学基金资助项目(2020J01914)
莆田学院科技项目(2018060)
莆田学院大学生创新创业训练计划项目(201911498040)。
关键词
二氧化钛
光催化
降解
银
金属离子掺杂
硝基苯
titanium dioxide
photocatalytic
degradation
silver
metal ion doping
nitrobenzene
