工程科学学报2017，Vol.39Issue(8)：1166-1173,8.DOI:10.13374/j.issn2095-9389.2017.08.005
核壳结构Fe3O4@C粒子在UV-Fenton氧化去除VOCs过程中的吸附-催化作用
Fabrication of Fe3O4@ C core-shell particles and its application in UV-Fenton oxidize removal of VOCs
摘要
Abstract
ABSTRACT The solvothermal method was used to prepare Fe3O4@ C core-shell microspheres. The structure and morphology of the nanocomposite powders were characterized by X-ray diffraction, transmission electron microscopy, and Fourier transform infrared spec-troscopy, and then the particles were used as heterogeneous catalysts in the UV-Fenton removal of VOCs in gas. The results show that the Fe3O4@ C core-shell microspheres have a strong adsorption capacity for VOCs due to the outer layer of Fe3O4 being coated with a carbon layer of uniform thickness and pore structure. For sparingly soluble organic gases such as octane, the adsorption of these parti-cles could increase the total concentration of VOCs in the liquid phase. Therefore, the opportunity for the Fenton reagent to be in contact with the VOCs gas increases, causing a significant improvement in the gas removal efficiency. Moreover, the cooperation factorβ was introduced to evaluate the synergistic effects in the integrated process of the adsorption-catalytic oxidation by the core-shell struc-ture particles.关键词
核壳结构粒子/UV-Fenton氧化法/挥发性有机物/吸附-催化作用Key words
core-shell nanocomposite/UV-Fenton oxidation/volatile organic compounds/adsorptive-catalytic effects分类
资源环境引用本文复制引用
陈海英,刘杰民,袁司夷,裴一朴,赵鹏,张艳,颜鲁春,吴传东,高小雅..核壳结构Fe3O4@C粒子在UV-Fenton氧化去除VOCs过程中的吸附-催化作用[J].工程科学学报,2017,39(8):1166-1173,8.基金项目
国家自然科学基金资助项目(21576023,21407008) （21576023,21407008）
国家重点研发计划资助项目(2016YFE0115500,2016YFC0700603) （2016YFE0115500,2016YFC0700603）
中央高校基本科研业务费资助项目(FRF-TP-15-080A1) （FRF-TP-15-080A1）
国家水体污染控制与治理科技重大专项资助项目(2015ZX07205003) （2015ZX07205003）
