西安工程大学学报2017，Vol.31Issue(3)：293-299,321,8.DOI:10.13338/j.issn.1674-649x.2017.03.001
活性炭纤维基Fe-N-TiO2复合材料的制备及表征
Fabrication and characterization of Fe-N-codoped nano-TiO2/activated carbon fiber composites
摘要
Abstract
In order to solve the problem that nano-TiO2 exhibits a low visible light utilization rate and is difficult to recycle in textile printing and dyeing wastewater treatment,Fe-N-TiO2 photocatalysts are prepared by sol-gel method,and then Fe-N-codoped nano-TiO2/activated carbon fiber (ACF) composites are fabricated by making Fe-N-codoped nano-TiO2 loaded on the surface of ACF in impregnating method.The structure and morphology of the composites are characterized by X-ray diffraction (XRD),UV-Visible diffusive reflectance spectroscopy (UVVis DRS),X-ray photoelectron spectroscopy (XPS),and Scanning electron microscope(SEM).The photocatalytic performance of the composites was evaluated by using weak acid red RN solution as degradation target.Results show that Fe-N-TiO2 particles of composites are single anatase phase,and the average particle size is 17.1nm,when the molar ratio of nitric acid iron,urea and butyl titanate is 1.25 ∶ 400 ∶ 100,and the calcinated temperature is 400 ℃.Fe-N-TiO2 particles in the composites are homogeneously dispersed on the surface of ACF.The absorption band edge of Fe-N-TiO2 exhibits an evident red shift to 528 nm and forbidden band width is reduced to 2.35 eV.The degradation rate of weak acid red RN reaches to 98.7％ when the dosing quantity of Fe-N-TiO2/ACF composite is 0.12 g/100 mL,irradiated under 300 W metal halide lamp for 180 min,which is much higher than that of Fe-N-TiO2photocatalyst.关键词
纳米TiO2/铁、氮共掺杂/可见光催化/活性炭纤维/复合材料Key words
nanometer TiO2/iron and nitrogen codoped/visible light photocatalysis/activated carbon fiber/composites分类
化学化工引用本文复制引用
曹陈华,郭晓玲,冯亚明,申国栋..活性炭纤维基Fe-N-TiO2复合材料的制备及表征[J].西安工程大学学报,2017,31(3):293-299,321,8.基金项目
陕西省科学技术研究发展计划工业攻关类项目(2013K09-04) （2013K09-04）
陕西省产业用纺织品协同创新中心科研项目(2015ZX-19) （2015ZX-19）
