改性膨胀石墨基炭/炭复合材料对甲醛气体的吸附性能
Gaseous Formaldehyde Adsorption Property of Modified Expanded Graphite Based Carbon/Carbon Composite
摘 要
对膨胀石墨基炭/炭复合材料(EGCs)进行真空浸渍改性, 研究了改性剂种类(双氧水、硝酸、氨基酸、氯化铵、CTAB), 改性剂浓度、改性温度、改性时间对EGCs甲醛吸附性能的影响。结果表明: 经CTAB溶液改性后, EGCs对甲醛气体的吸附性能得到提高, 而经双氧水、硝酸、氨基酸、氯化铵等溶液改性的EGCs对甲醛气体的吸附能力反而下降; 当CTAB浓度为0.01 mol·L-1、改性温度为70 ℃、改性时间为60 min时, 改性后EGCs对甲醛的吸附效果最好, 最大吸附量可达1 042 mg·g-1。
膨胀石墨基炭/炭复合材料
改性
吸附
formaldehyde
expanded graphite-base carbon/carbon composites
modification
adsorption
Abstract
The expanded graphite based carbon/carbon composite (EGCs) was modified by vacuum impregnation with solutions of hydrogen peroxide, nitric acid, amino acid, ammonium chloride, CTAB. The effects of modifying agent, concentration of modifying agent, modifying time and temperature on gaseous formaldehyde adsorption property of modified EGCs were studied. The results show that gaseous formaldehyde adsorption property of EGCS modified with CTAB was better than that before modification, but it dropped after EGCs was modified with hydrogen peroxide, nitric acid, amino acid, ammonium chloride. When CTAB concentration was 0.01 mol·L-1, modification temperature was 70 ℃, modification time was 60 min, the gaseous formaldehyde adsorption property of modified EGCs was the best, the maximal adsorption capacity of 1 042 mg·g-1.
中图分类号 TQ165
所属栏目 新材料新工艺
基金项目 国家自然科学基金资助项目(21071107, 21277094, 21103119); 江苏省自然科学基金-青年基金资助项目(BK2012167); 江苏省高校自然科学基金资助项目(12KJA430005, 09KJB30003, 11KJB430012); 苏州市环境功能材料重点实验室基金项目(SZS201008); 苏州市应用基础研究计划项目(SYG201242)
收稿日期 2012/10/8
修改稿日期 2013/9/22
网络出版日期
作者单位点击查看
备注顾诚(1988-), 男, 江苏建湖人, 硕士研究生。
引用该论文: GU Cheng,CHEN Zhi-gang,LIU Cheng-bao,MA Juan-ning. Gaseous Formaldehyde Adsorption Property of Modified Expanded Graphite Based Carbon/Carbon Composite[J]. Materials for mechancial engineering, 2013, 37(12): 80～84
顾诚,陈志刚,刘成宝,马娟宁. 改性膨胀石墨基炭/炭复合材料对甲醛气体的吸附性能[J]. 机械工程材料, 2013, 37(12): 80～84
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参考文献
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【2】封跃鹏, 张太生.室内空气污染概述[J].环境监测管理与技术, 2002, 14(3): 1720-1723.
【3】徐强, 张秀珍, 钱松, 等.室内空气中甲醛污染对健康的影响及其控制[J].江苏预防医学, 1996(3): 49-52.
【4】KIM D, PARK J H, KIM S D. Comparison of removal ability of indoor formaldehyde over different materials functionalized with various amine groups[J].Journal of Industrial and Engineering Chemistry, 2011, 508: 1-5.
【5】FAISAL I K, ALOKE K G. Removal of Volatile Organic Compounds From polluted air[J].Journal of Loss Prevention in the Process Industries, 2000, 13: 527-545.
【6】过乃蓉.国内外治理恶臭污染的一些方法[J].环境科学丛刊, 1986, 7(11): 30-34.
【7】LIU C B, CHEN Z G, CHEN H, et al. Preparation of expanded graphite-based composites by one step impregnation[J].Journal of Wuhan University of Technology-Materials Science Edition, 2011, 26(2): 254-257.
【8】王振邦, 陈志刚, 刘成宝, 等.膨胀石墨基炭/炭复合材料的制备及其苯酚吸附性能[J].材料工程, 2010 (11): 21-25.
【9】TAMON H, OKAZAKI M. Influence of acidic surface oxides of activated carbon on gas adsorption characteristics[J].Carbon, 1996, 34(6): 741-746.
【10】MORWSKI A W, INAGAKI M. Application of modified synthetic carbon for adsorption of trihalomethanes from water[J].Desalination, 1997, 114(1): 23-27.
【11】ZHANGA T, WALAWENDER W P, FANA L T. Preparation of activated carbon from forest andagricultural residues through CO2 activation[J].Chemical Engineering Journal, 2004, 105: 53-59.
【12】ZHANGA T, WALAWENDER W P, FANA L T. Preparation of activated carbon from forest andagricultural residues through CO2 activation[J].Chemical Engineering Journal, 2004, 105: 53-59.
【13】PAL S, LEE K H, KIM J U, et al. Adsorption of cyanuric acid on activated carbon from aqueous solution: Effect of carbon surface modification and thermodynamic characteristics[J].Journal of Colloid and Interface Science, 2006, 303: 39-48.
【14】邢其毅, 徐瑞秋, 周政.基础有机化学[M].北京: 人民教育出版社, 1980.
【15】付猛, 王荣飞, 赵晓兵, 等.膨胀石墨的表面修饰及其对甲醛吸附性能研究[J].功能材料, 2009, 40(8): 1322-1325.
【16】MCKAY G, BLAIR H S, GARDEN J R J. Adsorption of dyes of chitin[J].J Appl Polym Sci, 1982, 27(8): 3043-3047.
【17】BALBUENA P B, LOSTOSKIE C, KEITH E G, et al. Fundamental of Adsorption[M].Tokyo: Suzukim Kodansha Ltd, 1993.
【18】徐燕莉.表面活性剂的功能[M].北京: 化学工业出版社, 2000: 41-46.
【19】肖进新, 赵振国.表面活性剂应用原理[M].北京: 化学工业出版社, 2003: 78-83.
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