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磷酸微波活化多孔生物质炭对亚甲基蓝的吸附特性

Keywords: 微波,H3PO4,中孔,吸附,热力学

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Abstract:

以甘蔗渣为原料,采用微波辅助H3PO4活化法制备富含含氧酸官能团的中孔生物质炭。通过扫描电子显微镜SEM、傅立叶变换红外光谱FT-IR等技术对生物质炭物理化学性质进行表征,并通过静态实验法,探讨炭样对亚甲基蓝的吸附行为及热力学性质。结果表明,H3PO4活化制备蔗渣生物质炭的适宜条件为浸渍比1:1,烘干时间10h,活化功率900W,活化时间22min,在此条件下制得的生物质炭得率为39.2%,碘值为817mg/g,亚甲基蓝值为229mg/g,为国家一级品标准的1.7倍。红外光谱分析表明,炭样表面以羟基、羰基、羧基等酸性官能团为主。静态吸附实验表明,Freundlich方程与Redlich-Peterson方程能较好地描述等温吸附行为,表现为优惠吸附。热力学研究表明,吸附吉布斯自由能(ΔG0)70KJ/mol,表明亚甲基蓝在制备炭样上的吸附是吸热反应,升温有利于吸附,且化学反应在吸附过程中发挥了重要作用。

References

[1]  Luo L.S., Yang Z.F., Yu Y., et al.2-Steps preparation activated carbon from solidago canadensis: Carbonized by electrical heating and activated by microwave radiation. Journal of Donghua University, 2010, 27(6):786-791
[2]  金璇, 马鲁铭, 王红武.表面化学改性活性炭对有机物吸附的研究进展. 江苏环境科技,2006,19(2):43-45 Jin X., Ma L.M., Wang H.W. Progress in surface chemical modification of activated carbon for adsorption of organic substance. Jiangsu Environmental Science and Technology, 2006, 19(2):43-45(in Chinese)
[3]  Qiu Y.P., Cheng H.Y., Xu C., et al. Surface characteristics of crop-residue-derived black carbon and lead(Ⅱ) adsorption. Water Research,2008,42(3):567-574
[4]  Issabayeva G., Aroua M. K., Sulaiman N. M. N.Removal of lead from aqueous solutions on palm shell activated carbon. Bioresource Technology,2006,97(18):2350-2355
[5]  左宋林, 刘军利, 倪传根. 低温磷酸活化棉秆制备活性炭的研究.林产化学与工业, 2008,28(6):44-48 Zuo S.L., Liu J.L., Ni C.G. Preparation of activated carbons from cotton stalk by low-temperature activation using phosphoric acid. Chemistry and Industry of Forest Products, 2008, 28(6):44-48.(in Chinese)
[6]  胡皆汉, 郑学仿. 实用红外光谱学.北京:科学出版社, 2011
[7]  赵瑶兴,孙祥玉.有机分子结构光谱鉴定.北京:科学出版社,2003
[8]  Singh N. Sorption behavior of triazole fungicides in Indian soils and its correlation with soil properties. Journal of Agricultural and Food Chemistry, 2002, 50(22): 6434-6439
[9]  Jibril B.Y., Al-Maamari R.S., Hegde G., et al. Effects of feedstock pre-drying on carbonization of KOH-mixed bituminous coal in preparation of activated carbon. Journal of Analytical and Applied Pyrolysis, 2007, 80(2): 277-282
[10]  Ralph L.S., Christine K.F.H., Terence C.M., et al. The Systematic Identification of Organic Compounds. Beijing: Chemical Industry Press, 2007
[11]  Freundlich H.M.F. Over the adsorption in solution. Journal of Physical Chemistry, 1906, 57: 385-471
[12]  Tutem E., Apak R., Unal C.F. Adsorptive removal of chlorophenols from water by bituminous shale. Water Research, 1998, 32(8): 2315-2324
[13]  Sekar M., Sakthi V., Rengaraj S. Kinetics and equilibrium adsorption study of lead (Ⅱ) onto activated carbon prepared from coconut shell. Journal of Colloid and Interface Science, 2004, 279(2):307-313
[14]  Gokmen V., Serpen A. Equilibrium and kinetic studies on the adsorption of dark colored compounds from apple juice using adsorbent resin. Journal of Food Engineering, 2002, 53(3):221-227
[15]  宋应华,朱家文,陈葵,等.大孔吸附树脂对红霉素的平衡吸附行为及其热力学性质.化工学报,2006,57(4):715-718 Song Y.H., Zhu J.W., Chen K., et al. Adsorption of erythromycin on macroporous resins and thermodynamic analysis. Journal of Chemical Industry and Engineering, 2006, 57(4):715-718(in Chinese)
[16]  Geng XP. Study on the fractions of thermodynamic function changes for both adsorption and desorption from a liquid-solid system. Thermochimica Acta, 1998, 308 (12): 131-138
[17]  罗刚,张全兴,李爱民,等.吸附树脂对山梨酸的吸附作用及其热力学性质.应用化学, 2003,20(12):1039-1142 Luo G., Zhang Q.X., Li A.M., et al. Adsorption thermodynamic properties of sorbic acid on the polymeric adsorption resins. Chinese Journal of Applied Chemistry, 2003,20(12):1039-1142 (in Chinese)
[18]  左宋林,刘军利,杨建校,等.磷酸活化法活性炭性质对亚甲基蓝吸附能力的影响.林产化学与工业,2010,30(4):1-6 Zuo S.L., Liu J.L., Yang J.X., et al. Effects of the properties of phosphoric acid-activated carbon on adsorption capacity of methylene blue. Chemistry and Industry of Forest Products, 2010, 30(4):1-6 (in Chinese)
[19]  刘亚纳,周鸣,汤红妍,等.亚甲基蓝在污泥活性炭上的吸附.环境工程学报,2012,6(7):2339-2344 Liu Y., Zhou M., Tang H.Y., et al. Absorption of methylene blue on sludge activated carbon. Chinese Journal of Environmental Engineering, 2012, 6(7):2339-2344 (in Chinese)
[20]  杨春维, 王栋. Fenton 试剂对亚甲基蓝氧化褪色的反应动力学实验研究.环境技术,2004(6):24-29 Yang C.W., Wang D. The study of Fenton reagent oxidation and reaction kinetics of methylene blue.Environmental Technology, 2004(6):24-29 (in Chinese)
[21]  Haque K.E. Microwave energy for mineral treatment pro-cesses-a brief review. International Journal of Mineral Processing, 1999, 57(1):1-24
[22]  田宇红, 兰新哲, 周军, 等.微波辐射-KOH活化兰炭粉制备活性炭. 化学工程, 2010, 38(10): 225-228 Tian Y.H., Lan X.Z., Zhou J., et al. Preparation of activated carbon from blue coke powder by microwave radiation and KOH activation. Chemical Engineering, 2010, 38(10): 225-228(in Chinese)
[23]  Thostenson E.T., Chou T.W. Microwave proceeding of fundamental and application composites part A. Applied Science and Manufacturing, 1999, 30(9):1055-1071
[24]  Fang Q.Q., Meaney P.M., Paulsen K.D. Viable three-dimensional medical microwave tomography: theory and numerical experiments. IEEE Transactions on Antennas and Propagation, 2010, 58 (2):449-458
[25]  Fu D.J., Zeng X.R., Xie S.H.,et al. Effect of catalyst on the growth of aligned carbon prepared by microwave chemical vapor deposition. Procedia Engineering, 2012, 27:1373-1377
[26]  Koleini J.S.M., Barani K., Rezaei B.The effect of microwave treatment on dry grinding kinetics of iron ore. Mineral Processing and Extractive Metallurgy Review, 2012, 33 (3):159-169

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