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丝光改性竹笋皮对亚甲基蓝的吸附研究

DOI: 10.7685/j.issn.1000-2030.2014.04.024, PP. 163-169

Keywords: 丝光改性竹笋皮,吸附,亚甲基蓝,紫外-可见分光光度法

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Abstract:

采用竹笋皮和丝光改性竹笋皮为吸附材料,研究了二者对亚甲基蓝的吸附行为,评价二者对亚甲基蓝的吸附去除性能。采用扫描电镜、红外光谱和比表面积等方法对2种材料的形貌和结构进行表征;采用静态吸附法,以紫外-可见分光光度法为检测手段,探讨了pH值、反应时间、添加量以及亚甲基蓝初始浓度等因素对亚甲基蓝吸附能力的影响;采用Langmuir吸附等温模型对其进行热力学模拟研究,Lagergren准一级动力学方程和Ho准二级动力学方程对其进行动力学模拟研究。结果表明1)与竹笋皮相比,丝光竹笋皮更易形成分子内氢键;表面含有大量紧密排列的孔隙和不规则的沟槽;比表面积为1.516m2?g-1,高于未改性竹笋皮比表面积(1.425m2?g-1)。2)在低酸度时亚甲基蓝基本不被吸附;当pH值从3增至8时,吸附量不断增大;当pH值达到8以后,吸附量达到最大且保持平衡。3)随着溶液中亚甲基蓝初始浓度的增加,到达平衡时丝光改性竹笋皮对亚甲基蓝的饱和吸附量先是急剧增加,然后保持不变。4)当亚甲基蓝质量浓度仅为5mg?L-1时,30min就可达到吸附平衡,当亚甲基蓝质量浓度升至50和100mg?L-1时,则需要60min才可到达吸附平衡。5)对于初始质量浓度为100mg?L-1的亚甲基蓝溶液,100mg的丝光改性竹笋皮即可达到定量吸附。丝光改性竹笋皮对亚甲基蓝的吸附动力学和热力学分别符合准二级吸附模型和Langmuir等温吸附模型。在pH8、反应时间为60min、材料用量为10mg以及亚甲基蓝初始质量浓度为100mg?L-1时丝光改性竹笋皮对亚甲基蓝的最大吸附容量可达25mg?g-1,可有效去除水中亚甲基蓝。

References

[1]  Farinella N V, Matos G D, Lehmann E L, et al.Grape bagasse as an alternative natural adsorbent of cadmium and lead for effluent treatment[J].Journal of Hazardous Materials, 2008, 154:1007-1012
[2]  Hameed B H, Ahmad A A.Batch adsorption of methylene blue from aqueous solution by garlic peel, an agricultural waste biomass[J].Journal of Hazardous Materials, 2009, 164:870-875
[3]  戴日成, 张统, 郭茜, 等.印染废水水质特征及处理技术综述[J].工业给排水, 2000, 26(10):33-37[Dai R C, Zhang T, Guo Q, et al.Summary of printing-dyeing wastewater treatment technology[J].Water and Wastewater Engineering, 2000, 26(10):33-37(in Chinese with English abstract)]
[4]  闫金霞, 成庆利.印染废水治理技术综述[J].染料与染色, 2007, 44(2):48-51[Yan J X, Cheng Q L.A Review on the treatment technology of dyeing Wastewater[J].Dyestuffs and Coloration, 2007, 44(2):48-51(in Chinese with English abstract)]
[5]  刘转年, 王念秦.超细粉煤灰吸附亚甲基蓝的机理研究[J].离子交换与吸附, 2008, 24(6):535-543[Liu Z N, Wang N Q.Study on the adsorption mechanism of ultra-fine coal fly ash towards methylene blue[J].Ion Exchange and Adsorption, 2008, 24(6):535-543(in Chinese with English abstract)]
[6]  朱晓婧, 杨俊, 陈晓强, 等.二氧化钛改性油页岩渣对水溶液中亚甲基蓝和六价铬的吸附[J].环境化学, 2012, 31(11):1683-1690[Zhu X J, Yang J, Chen X Q, et al.Adsorption of methylene blue and Cr(Ⅵ)from aqueous solution by TiO2 modified oil shale ash[J].Environmental Chemistry, 2012, 31(11):1683-1690(in Chinese with English abstract)]
[7]  赵小蓉, 杜冬云, 陆晓华.累托石对亚甲基蓝吸附性能的研究[J].离子交换与吸附, 2003, 19(4):337-342[Zhao X R, Du D Y, Lu X H.Research on the adsorptive properties of rectorties to mythylene blue[J].Ion Exchange and Adsorption, 2003, 19(4):337-342(in Chinese with English abstract)]
[8]  Venkatesha T G, Nayaka Y A, Chethana B K.Adsorption of Ponceau S from aqueous solution by MgO nanoparticles[J].Applied Surface Science, 2013, 276:620-627
[9]  Li Y, Du Q, Liu T, et al.Methylene blue adsorption on graphene oxide/calcium alginate composites[J].Carbohydrate Polymers, 2013, 95:501-507
[10]  焦新亭, 李晓东, 刘国文, 等.碳纳米管对亚甲基蓝的吸附性能研究[J].安全与环境学报, 2007, 7(3):44-47[Jiao X T, Li X D, Liu G W, et al.Study on adsorption of methylene blue by carbon nanotubes[J].Journal of Safety and Environment, 2007, 7(3):44-47(in Chinese with English abstract)]
[11]  许彬彬, 佟蜜, 孙小梅, 等.聚胺酸修饰酵母对碱性品红和亚甲基蓝的吸附行为[J].化学工程师, 2008, 153(6):60-62[Xu B B, Dong M, Sun X M, et al.Adsorption behavior of basicm agenta and methylene blue using poly(amic acid)modified baker’s yeast as adsorbent[J].Chemical Engineer, 2008, 153(6):60-62(in Chinese with English abstract)]
[12]  从善畅, 薛晋阳, 张涛, 等.农林废弃物在印染废水处理中的应用[J].杭州化工, 2010, 40(4):14-16[Cong S C, Yue J Y, Zhang T, et al.The applicagtion of agricultural and forestal waste for the treatment of dyeing wastewater[J].Hanzhou Chemical Engineering, 2010, 40(4):14-16(in Chinese with English abstract)]
[13]  Feng Y, Zhou H, Liu G, et al.Methylene blue adsorption onto swede rape straw(Brassica napus L.)modified by tartaric acid:equilibrium, kinetic and adsorption mechanisms[J].Bioresource Technology, 2012, 125:138-144
[14]  Reddy P M K, Mahammadunnisa S K, Ramaraju B, et al.Low-cost adsorbents from bio-waste for the removal of dyes from aqueous solution[J].Environmental Science Pollutant Research, 2013, 20:4111-4124
[15]  周殷, 胡长伟, 李建龙.柚子皮吸附水溶液中亚甲基蓝的机理研究[J].环境科学研究, 2008, 21(5):49-54[Zhou Y, Hu C W, Li J L.Study on the biosorption mechanism of methylene blue in aqueous solution using pummelo Peel[J].Research of Environmental Sciences, 2008, 21(5):49-54(in Chinese with English abstract)]
[16]  江静, 高逸婷, 卢玉栋, 等.木麻黄树皮对亚甲基蓝吸附性能的研究[J].中国科技论文在线, 2010, 5(6):481-484[Jiang J, Gao Y T, Lu Y D, et al.Adsorption of methylene blue by casuarina equisetifolia bark[J].Science Paper Online, 2010, 5(6):481-484(in Chinese with English abstract)]
[17]  张玮, 詹燕.农林废弃物改性方法研究进展[J].现代农业科技, 2012(6):305-306[Zhang W, Zhan Y.Research advance on modification technologies of wastes from agriculture and forestry[J].Mordern Agricultural Technology, 2012(6):305-306(in Chinese with English abstract)]
[18]  Kim J T, Netravali A N.Mercerization of sisal fibers:effect of tension on mechanical properties of sisal fiber and fiber-reinforced composites[J].Composites:Part A, 2010, 41:1245-1252

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