Magnetic ordered mesoporous carbon (Fe-OMC) was successfully synthesized via hydrothermal route and applied as adsorbent for the removal of bisphenol A (BPA) in water. Through the characterizations of high resolution transmission electron microscopy, X-ray diffraction, specific surface area analyzer and vibrating sample magnetometer, the adsorbent possessed large specific surface area, unique ordered mesoporous pore structure, rich oxygen-containing functional groups and high super paramagnetism. During the application, Fe-OMC could effectively adsorb and remove BPA from water and the equilibrium adsorption capacity reached 72.62mg/g, and still maintained favorable adsorption ability after separation and recovery. With increasing BPA concentration from 1mg/L to 20mg/L, the equilibrium adsorption capacity increased from 8.33mg/g to 91.78mg/g. As solution pH raised, it presented a trend of first decreasing, then increasing and finally decreasing and the highest adsorption occurred at pH 8 (75.34mg/g). The adsorption process could be well described by pseudo-second-order adsorption kinetic model and Langmuir adsorption isotherm model. The calculated thermodynamic parameters illustrated that the BPA adsorption onto Fe-OMC was a spontaneous and exothermic process.
毕薇薇, 陈娅, 马晓雁, 邓靖. 磁性有序介孔碳的制备及其对水中双酚A的吸附[J]. 中国环境科学, 2020, 40(11): 4762-4769.
BI Wei-wei, CHEN Ya, MA Xiao-yan, DENG Jing. Synthesis of magnetic ordered mesoporous carbon and its adsorption of bisphenol A in water. CHINA ENVIRONMENTAL SCIENCECE, 2020, 40(11): 4762-4769.
徐西蒙,宗绍燕,刘丹.钢渣碱活化过硫酸盐降解双酚A[J]. 中国环境科学, 2019,39(7):2889-2895. Xu X M, Zong S Y, Liu D. Bisphenol A degradation by base-activated persulfate using stell slag[J]. China Environmental Science, 2019, 39(7):2889-2895.
[2]
Pahigian J M, Zuo Y G. Occurrence, endocrine-related bioeffects and fate of bisphenol A chemical degradation intermediates and impurities:A review[J]. Chemosphere, 2018,207:469-480.
[3]
杨娜,陈秀荣,林逢凯,等.处理BPA模拟废水的SBR工况参数对污泥有机毒性的影响研究[J]. 环境科学, 2014,35(4):1414-1420. Yang N, Chen X R, Lin F K, et al. Effects of operating parameters on organic toxicity of sludge treating synthetic bisphenol A wastewater[J]. Environmental Science, 2014,35(4):1414-1420.
[4]
Guo W L, Hu W, Pan J M, et al. Selective adsorption and separation of BPA from aqueous solution using novel molecularly imprinted polymers based on kaolinite/Fe3O4composites[J]. Chemical Engineering Journal, 2011,171(2):603-611.
[5]
Ryoo R, Joo S H, Knuck M, et al. Ordered mesoporous carbons[J]. Advanced Materials, 2011,13(9):677-681.
[6]
Konggidinata M I, Chao B, Lian Q Y, et al. Equilibrium, kinetic and thermodynamic studies for adsorption of BTEX onto ordered mesoporous carbon (OMC)[J]. Journal of Hazardous Materials, 2017, 336:249-259.
[7]
Peng X M, Hu F P, Huang J L, et al. Preparation of a graphitic ordered mesoporous carbon and its application in sorption of ciprofloxacin:Kinetics, isotherm, adsorption mechanisms studies[J]. Microporous and Mesoporous Materials, 2016,228:196-206.
[8]
Shinae J, Sang H J, Ryong R, et al. Synthesis of new, nanoporous carbon with hexagonally ordered mesostructure[J]. Journal of America Chemistry Society, 2000,122:10712-10713.
[9]
Tan C Q, Gao N Y, Deng Y, et al. Radical induced degradation of acetaminophen with Fe3O4 magnetic nanoparticles as heterogeneous activator of peroxymonosulfate[J]. Journal of Hazardous Materials, 2014,276:452-460.
[10]
Weber W J, Morris J C. Kinetics of adsorption on carbon from solution[J]. Journal of the Sanitary Engineering Division by American Society of Civil Engineers, 1963,89:31-60.
[11]
Chi Y, Geng W C, Zhao L, et al. Comprehensive study of mesoporous carbon functionalized with carboxylate groups and magnetic nanoparticles as a promising adsorbent[J]. Journal of Colloid and Interface Science, 2012,369:366-372.
[12]
Liu N N, Yin L W, Zhang L W, et al. Ferromagnetic Ni decorated ordered mesoporous carbons as magnetically separable adsorbents for methyl orange[J]. Materials Chemistry and Physics, 2011,131:44-52.
[13]
公绪金,董玉奇,李伟光.原位载铁中孔活性炭吸附As和天然有机物效能[J]. 中国环境科学, 2019,39(9):3857-3865. Gong X J, Dong Y Q, Li W G. Adsorption characteristics of arsenic and humic acid by iron in-situ-impregnated mesoporous activated carbon[J]. China Environmental Science, 2019,39(9):3857-3865.
[14]
Yang G X, Jiang H. Amino modification of biochar for enhanced adsorption of copper ions from synthetic wastewater[J]. Water Research, 2014,48:396-405.
[15]
Kang F X, Ge Y Y, Hu X J, et al. Understanding the sorption mechanisms of aflatoxin B1to kaolinite, illite, and semctite clays via a comparative computational study[J]. Journal of Hazardous Materials, 2016,320:80-87.
[16]
方梦婵,周华娇,吴静怡,等.磁性石墨烯@聚多巴胺纳米复合材料分离去除水中双酚A[J]. 分析科学学报, 2017,33(4):6140-6144. Fang M C, Zhou H J, Wu J Y, et al. Removal of bisphenol A from water using polydopamine coated magnetic graphene as adsorption materials[J]. Journal of Analytical Science, 2017,33(4):6140-6144.
[17]
吴日良,刘云芳,任森,等.Fe3O4@碳/氧化石墨烯复合材料制备及染料吸附性能[J]. 中国环境科学, 2016,36(10):2981-2987. Wu R L, Liu Y F, Ren S, et al. Preparation and dye adsorbing properties of Fe3O4@carbon/grapheme oxide composites[J]. China Environmental Science, 2016,36(10):2981-2987.
[18]
曾红杰,余静,王盈盈.磁性吸附剂MZFS吸附偶氮染料中性红的性能及机理[J]. 中国环境科学, 2019,39(9):3814-3823. Zeng H J, Yu J, Wang Y Y. The performance and mechanism of adsorption azo dye neutal red from aqueous solution using magnetic adsorbent MZFS[J]. China Environmental Science, 2019,39(9):3814-3823.
[19]
Jin Z X, Wang X X, Sun Y B, et al. Adsorption of 4-n-nonylphenol and bisphenol-a on magnetic reduced graphene oxides:a combined experimental and theoretical studies[J]. Environmental Science and Technology, 2015,49(15):9168-9175.
[20]
Li S Z, Gong Y B, Yang Y C, et al. Recyclable CNTs/Fe3O4magnetic nanocomposites as adsorbents to remove bisphenol A from water and their regeneration[J]. Chemical Engineering Journal, 2015,260:231-239.
[21]
Salehinia S, Ghoreishi S M, Maya F, et al. Hydrophobic magnetic montmorillonite composite material for the efficient adsorption and microextraction of bisphenol A from water samples[J]. Journal of Environmental Chemical Engineering, 2016,4:4062-4071.
[22]
Zhou Q X, Wang Y Q, Xiao J P, et al. Adsorption and removal of bisphenol A, anaphthol and b-naphthol from aqueous solution by Fe3O4@polyaniline coreeshell nanomaterials[J]. Synthetic Metals, 2016,212:113-122.
[23]
Celebican O, Inci I, Baylan N. Investigation of adsorption properties of levulinic acid by a nanotechnological material[J]. Journal of Molecular Structure, 2020,1203:127454.
[24]
Yu F, Ma J, Wu Y Q. Adsorption of toluene, ethylbenzene and m-xylene on multi-walled carbon nanotubes with different oxygen contents from aqueous solutions[J]. Journal of Hazardous Materials, 2011,192(3):1730-1379.
[25]
Bautistatoledo I, Ferrogarcia M A, Riverautrilla J, et al. Bisphenol A removal from water by activated carbon:Effect of carbon characteristics and solution chemistry[J]. Environmental Science and Technology, 2005,39(16):6246-6250.
[26]
Park H S, Koduru J R, Choo K H, et al. Activated carbons impregnated with iron oxide nanoparticles for enhanced removal of bisphenol A and natural organic matter[J]. Journal of Hazardous Materials, 2015,286:315-324.