摘要
采用斜板液膜法光电催化降解染料罗丹明B(RhB),用分光光度法考察了其紫外-可见吸收光谱随时间的变化;色谱-质谱联用仪考察了RhB降解过程中的中间产物;总有机碳分析仪考察了RhB的矿化情况。研究结果表明,RhB主要是通过被氧化而降解,首先是RhB的芳环被打开,其产物进而被氧化成小分子的有机酸,最终被氧化为CO2和H2O。
Rhodamine B （RhB） has been treated by photoelectrocatalytic （PEC） degradation using a slant-placed anode thin-film reactor. The UV-Vis spectra of RhB which changes with time are investigated by spectrophotometry. The intermediate produced in the process of degradation is investigated by combined chromatography-mass spectrography. The mineralization of RhB is investigated with the total organic carbon （TOC） analyzer. The results demonstrate that RhB is degraded by oxidation principally. At the initial stage, aryl-chain is to be opened, and then the product is oxidized to form small molecule organic acid. Finally ,the acid is oxidized to become CO2 and H2O.
出处
《工业水处理》
CAS
CSCD
北大核心
2013年第5期22-24,共3页
Industrial Water Treatment
基金
国家自然基金重点项目(20937003)
国家自然科学基金面上项目(21077140)
重庆市科委自然科学基金项目(cstc2011jjA0835)
重庆市教委科学技术研究项目(KJ110801)
关键词
斜板液膜反应器
TIO2
Ti电极
光电催化
罗丹明B
slant-placed anode thin-film reactor
TiOz/Ti electrode
photoelectrocatalysis
Rhodamine B
