研究了吸附剂投加量、甲基橙初始浓度、pH值、吸附时间等条件对甲基橙脱色效果的影响.结果表明,在质子化壳聚糖用量为3.6g/L条件下,对质量浓度低于200mg/L甲基橙溶液的吸附率不低于90％.拟二级动力学模型能很好地描述其吸附过程；吸附等温线符合Langmuir模型.质子化壳聚糖在较宽的pH值范围内对甲基橙具有较好的脱色效果,可提高壳聚糖的利用价值.
参考文献
| [1] | Niramol SA;Thiravetyan P;Nakbanpote W .Adsorption mechanism of synthetic reactive dye wastewater by chitosan[J].Journal of Colloid and Interface Science,2005(1):36-42. |
| [2] | Saha T K;Bhoumik N C;Karmaker S et al.Adsorption of methyl orange onto chitosan from aqueous solution[J].J WaterResourProt,2010,2:898-906. |
| [3] | Soraya Hosseini;Moonis Ali Khan;Mohamad Rasool Malekbala .Carbon coated monolith, a mesoporous material for the removal of methyl orange from aqueous phase: Adsorption and desorption studies[J].Chemical engineering journal,2011(3):1124-1131. |
| [4] | Zhu H Y;Jiang R;Fu Y Q et al.Preparation,characterization and dye adsorption properties of Y-Fe2O3/SiO2/chitosan composite[J].Applied Surface Science,2011,258:1337-1344. |
| [5] | 邵红,肖宏康,程慧,金雯雯.壳聚糖季铵盐改性膨润土的制备及其对印染废水处理[J].科技导报,2010(16):92-96. |
| [6] | 贾宏玲,王自为,刘燕,任建国.壳聚糖希夫碱金属配合物催化氧化甲基橙的研究[J].光谱实验室,2011(02):885-888. |
| [7] | 蔡苇,张业明.染料壳聚糖微球的制备及对Cr6+的吸附研究[J].环境科学与技术,2009(11):24-27. |
| [8] | Zhu Huayue;Jiang Ru;Xiao Ling .Adsorption of an anionic azo dye by chitosan/kaolin/y-Fe2O3 composites[J].Applied Clay Science,2010,48:522-526. |
| [9] | 蒋挺大.壳聚糖[M].北京:化学工业出版社,2001 |
| [10] | Rosa S;Laranjeira M C M;Riela H G et al.Crosslinked quaternary chitosan as an adsorbent for the removal of the reactive dye from aqueous solutions[J].Journal of Hazardous Materials,2008,155:253260. |
| [11] | Chiou M S;Chuang G S .Competitive adsorption of dye metanil yellow and RB15 in acid solutions on chemically cross linked chitosan beads[J].Chemosphere,2006,62:731740. |
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