摘要
合成了β-环糊精(β-CD)与偶氮染料酸性红GR(ARGR)的包结物,并采用红外光谱仪对ARGR、β-CD及β-CD与ARGR的包结物进行了表征,表征结果显示,β-CD与ARGR的包结物的特征峰的峰形和强度与β-CD相似,但峰位有明显的偏移,说明ARGR进入了β-CD空腔与β-CD发生了分子识别作用。采用TiO2作为催化剂,研究了β-CD分子识别后ARGR的光催化降解行为,实验结果表明,在ARGR质量浓度为20.0 mg/L、β-CD浓度为1.8×10-5 mol/L、体系pH为4.0、TiO2加入量为1.0 g/L、光催化反应时间为60 min的条件下,经β-CD分子识别后ARGR的光催化降解率可达100%。
The inclusion complex ofβ-cyclodextrin(β-CD)and azo dye Acid Red GR(ARGR)was synthesized.ARGR,β-CD and the inclusion complex were characterized by FTIR,and the results show that the peak and strength of the characteristic peak of the inclusion complex ofβ-CD and ARGR are similar to those ofβ-CD,but there is a significant shift in the peak position,which indicates that ARGR entered theβ-CD cavity and had molecular recognition withβ-CD.The photocatalytic degradation behavior of ARGR afterβ-CD molecular recognition was studied using TiO2 as a catalyst.The experimental results show that under the conditions of ARGR mass concentration 20.0 mg/L,β-CD concentration 1.8×10-5 mol/L,system pH 4.0,TiO2 amount 1.0 g/L and photocatalytic reaction time 60 min,the photodegradation rate of ARGR can reach 100%because of theβ-CD molecular recognition interaction.
作者
齐普荣
王滔
王晗旭
王光辉
QI Purong;WANG Tao;WANG Hanxu;WANG Guanghui(Shaanxi Nuclear Industry Engineering Investigation Institute Co.,Ltd.,Xi’an 710054,China;School of Water Resources and Environmental Engineering,East China University of Technology,Nanchang 330013,China)
出处
《化工环保》
CAS
CSCD
北大核心
2020年第1期32-35,共4页
Environmental Protection of Chemical Industry
基金
国家自然科学基金项目(41761069)
