新型光-类芬顿催化剂纳米FeVO_4的制备及其对盐酸四环素的降解性能  

Preparation and degradation properties toward tetracycline hydrochloride of a new photo-Fenton-like catalyst nano FeVO_4

作　　者：俞幼萍[1] 高品[2,3] 刘保江[1] 何瑾馨[1,4] 

机构地区：[1]东华大学化学化工与生物工程学院,上海201620 [2]东华大学环境工程与科学学院,上海201620 [3]国家环境保护纺织工业污染防治工程技术中心,上海201620 [4]纺织面料技术教育部重点实验室,上海201620

出　　处：《环境工程学报》2017年第1期401-407,共7页Chinese Journal of Environmental Engineering

摘　　要：采用水热法制备新型光-类芬顿纳米钒酸铁,通过X射线衍射(XRD)、粒径和比表面积(BET)对产物进行表征。以盐酸四环素模拟废水,通过光-类芬顿体系下对盐酸四环素的催化降解效果评价钒酸铁的催化活性,研究分析光源、盐酸四环素初始浓度、pH值、FeVO_4的用量以及H_2O_2的用量对盐酸四环素催化降解性能的影响。结果表明,在可见光下,盐酸四环素初始浓度为50 mg·L^(-1),pH值为7,H2O2的用量为60μL时,1.5 g·L^(-1)纳米钒酸铁,经过120 min反应后降解率为97.63%。Nano vanadate iron as a new photo-Fenton-like catalyst was synthesized via a hydrothermal process.The sample was characterized using X-ray diffraction（ XRD）,and its particle size and Brunauer-Emmett-Teller（ BET） surface area were measured. The catalytic activity of the prepared catalyst was evaluated through the degradation effect in a photo-Fenton-like process and using tetracycline hydrochloride as the specific contaminant.The effects of the light source,initial tetracycline hydrochloride concentration,pH,and amounts of FeVO_4 and H_2O_2on the catalytic degradation of tetracycline hydrochloride are discussed. The results showed that the optimum conditions were an initial tetracycline hydrochloride concentration of 50 mg · L- 1,pH of 7,H_2O_2of60 μL,and FeVO_4 of 1. 5 g·L- 1under visible light,and the degradation rate was 97. 63% after reacting for120 min.

关 键 词：纳米钒酸铁 光-类芬顿 催化降解 盐酸四环素 H2O2 

分 类 号：X703[环境科学与工程—环境工程]