核殼結構Fe<sub>3</sub>O<sub>4</sub>@C粒子在UV-Fenton氧化去除VOCs過程中的吸附-催化作用

陳海英; 劉杰民; 袁司夷; 裴一樸; 趙鵬; 張艷; 顏魯春; 吳傳東; 高小雅

doi:10.13374/j.issn2095-9389.2017.08.005

核殼結構Fe₃O₄@C粒子在UV-Fenton氧化去除VOCs過程中的吸附-催化作用

doi: 10.13374/j.issn2095-9389.2017.08.005

陳海英^1,2,
劉杰民^1, ,,
袁司夷¹,
裴一樸³,
趙鵬⁴,
張艷⁵,
顏魯春⁶,
吳傳東¹,
高小雅¹

1) 北京科技大學化學與生物工程學院, 北京 100083
2) 青海大學化工學院, 西寧 810016
3) 中國建筑材料科學研究總院, 北京 100024
4) 北京勞動保護科學研究所, 北京 100054
5) 北京建筑大學理學院, 北京 100044
6) 北京科技大學材料科學與工程學院, 北京 100083

基金項目:

國家水體污染控制與治理科技重大專項資助項目(2015ZX07205003)

國家自然科學基金資助項目(21576023,21407008)

國家重點研發計劃資助項目(2016YFE0115500,2016YFC0700603)

中央高校基本科研業務費資助項目(FRF-TP-15-080A1)

詳細信息

中圖分類號: X511
計量
- 文章訪問數: 705
- HTML全文瀏覽量: 235
- PDF下載量: 9
- 被引次數: 0
出版歷程
- 收稿日期: 2017-01-05

Fabrication of Fe₃O₄@C core-shell particles and its application in UV-Fenton oxidize removal of VOCs

1) School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
2) School of Chemical Engineering, Qinghai University, Xining 810016, China
3) China Building Materials Academy, Beijing 100024, China
4) Beijing Municipal Institute ofLabor Protection, Beijing 100054, China
5) School of Science, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
6) School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

摘要

摘要: 采用一步水熱法制備核殼結構Fe₃O₄@C微米粒子,通過比表面積及孔徑分析儀、X射線衍射儀、透射電子顯微鏡、傅里葉變換紅外光譜儀等對粒子結構和形貌進行表征,并研究了粒子作為非均相催化劑在UV-Fenton氧化去除揮發性有機物(VOCs)中的作用機制.結果表明,核殼結構Fe₃O₄@C粒子由于包覆了孔隙狀碳層而具有較強的吸附能力,可顯著增加VOCs氣體分子與Fenton試劑的接觸幾率,有助于提高VOCs的去除效率.通過計算反應速率常數及協同因子,證實在核殼結構Fe₃O₄@C粒子去除VOCs的過程中存在吸附-催化氧化協同作用.
- 核殼結構粒子 /
- UV-Fenton氧化法 /
- 揮發性有機物 /
- 吸附-催化作用
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 spectroscopy, 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 particles 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 factor β was introduced to evaluate the synergistic effects in the integrated process of the adsorption-catalytic oxidation by the core-shell structure particles.
- core-shell nanocomposite /
- UV-Fenton oxidation /
- volatile organic compounds /
- adsorptive-catalytic effects

HTML全文

參考文獻(17)

[1]	Wu R R, Li J, Hao Y F, et al. Evolution process and sources of ambient volatile organic compounds during a severe haze event in Beijing, China. Sci Total Environ, 2016, 560-561:62
[3]	Mostbauer P, Lombardi L, Olivieri T, et al. Pilot scale evaluation of the BABIU process——Upgrading of landfill gas or biogas with the use of MSWI bottom ash. Waste Manage, 2014, 34(1):125
[4]	Palmiotto M, Fattore E, Paiano V, et al. Influence of a municipal solid waste landfill in the surrounding environment:toxicological risk and odor nuisance effects. Environ Int, 2014, 68:16
[5]	Rasi S, Läntelä J, Rintala J. Upgrading landfill gas using a high pressure water absorption process. Fuel, 2014, 115:539
[6]	Wu C D, Liu J M, Yan L C, et al. Assessment of odor activity value coefficient and odor contribution based on binary interaction effects in waste disposal plant. Atmos Environ, 2015, 103:231
[7]	Wu C D, Liu J M, Zhao P, et al. Conversion of the chemical concentration of odorous mixtures into odour concentration and odour intensity:a comparison of methods. Atmos Environ, 2016, 127:283
[8]	Liu Y P, Chen J C, Li W, et al. Carbon functionalized mesoporous silica-based gas sensors for indoor volatile organic compounds. J Colloid Interface Sci, 2016, 477:54
[9]	Feo G D, Gisi S D, Williams I D. Public perception of odour and environmental pollution attributed to MSW treatment and disposal facilities:a case study. Waste Manage, 2013, 33(4):974
[10]	Govindan M, Moon I S. A single catalyst of aqueous Co-Ⅲ for deodorization of mixture odor gases:a development and reaction pathway study at electro-scrubbing process. J Hazard Mater, 2013, 260:1064
[11]	Qian Y J, Zhou X F, Zhang Y L,et al. Performance and properties of nanoscale calcium peroxide for toluene removal. Chemosphere, 2013, 91(5):717
[12]	Gil R R, Ruiz B, Lozano M S,et al. VOCs removal by adsorption onto activated carbons from biocollagenic wastes of vegetable tanning. Chem Eng J, 2014, 245:80
[14]	Zhou Y, Xiao B, Liu S Q, et al. Photo-Fenton degradation of ammonia via a manganese-iron double-active component catalyst of graphene-manganese ferrite under visible light. Chem Eng J, 2016, 283:266
[15]	Barndõk H, Blanco L, Hermosilla D,et al. Heterogeneous photo-Fenton processes using zero valent iron microspheres for the treatment of wastewaters contaminated with 1,4-dioxane. Chem Eng J, 2016, 284:112
[16]	Tokumura M, Nakajima R, Znad H T,et al. Chemical absorption process for degradation of VOC gas using heterogeneous gas-liquid photocatalytic oxidation:toluene degradation by photo-Fenton reaction. Chemosphere, 2008, 73(5):768
[17]	Tokumura M, Wada Y, Usami Y,et al. Method of removal of volatile organic compounds by using wet scrubber coupled with photo-Fenton reaction——Preventing emission of by-products. Chemosphere, 2012, 89(10):1238
[18]	Handa M, Lee Y, Shibusawa M,et al. Removal of VOCs in waste gas by the photo-Fenton reaction:effects of dosage of Fenton reagents on degradation of toluene gas in a bubble column. J Chem Technol Biotechnol, 2013, 88(1):88
[19]	Lei L C, Gu L, Zhang X W, et al. Catalytic oxidation of highly concentrated real industrial wastewater by integrated ozone and activated carbon. Appl Catal A-Gen, 2007, 327(2):287