| SCB-g-MMA的固相接枝制备及其吸附性能 |
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| 引用本文： | 戈明亮,杜明艺,郑罗云,周向阳,贾志欣.SCB-g-MMA的固相接枝制备及其吸附性能[J].复合材料学报,2016,33(11):2444-2453. |
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| 作者姓名： | 戈明亮 杜明艺 郑罗云 周向阳 贾志欣 |
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| 作者单位： | 1. 华南理工大学 机械与汽车工程学院, 广州 510640;
2. 仲恺农业工程学院 化学化工学院, 广州 510225;
3. 华南理工大学 材料科学与工程学院, 广州 510640 |
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| 基金项目： | 广东省部产学研(2013B090500085)，广州市产学研协同创新重大专项(201508010022) |
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| 摘 要： | 采用固相接枝法将甲基丙烯酸甲酯(MMA)接枝到碱处理后的甘蔗渣(SCB)表面,得到固相接枝产物甲基丙烯酸甲酯接枝甘蔗渣(SCB-g-MMA),并通过XRD、FTIR、13 C NMR、SEM和BET(Brunauer-Emmett-Teller)测试等方法对其结构进行表征分析。将SCB-g-MMA作为亚甲基蓝(MB)的吸附剂,进行吸附性能研究。结果表明:在室温下,MB初始浓度在50~400mg/L范围内,当吸附剂投加量大于等于10g/L时,溶液pH范围在6~12,吸附时间超过40min,SCB-g-MMA对MB的去除率达到99%;当吸附剂投加量为2.5g/L时,对MB的吸附量可达97.3mg/g。SCB-g-MMA对MB吸附动力学和吸附等温线更符合准二级动力学方程和Freundlich等温吸附模型。
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| 关 键 词： | 甘蔗渣 固相接枝法 甲基丙烯酸甲酯 亚甲基蓝 吸附 |
| 收稿时间： | 2015-11-11 |
Solid phase grafting preparation of SCB-g-MMA and its adsorption property |
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| GE Mingliang,DU Mingyi,ZHENG Luoyun,ZHOU Xiangyang,JIA Zhixin.Solid phase grafting preparation of SCB-g-MMA and its adsorption property[J].Acta Materiae Compositae Sinica,2016,33(11):2444-2453. |
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| Authors: | GE Mingliang DU Mingyi ZHENG Luoyun ZHOU Xiangyang JIA Zhixin |
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| Affiliation: | 1. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China;
2. College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China;
3. School of Material Science and Engineering, South China University of Technology, Guangzhou 510640, China |
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| Abstract: | The solid phase grafting product methyl methacrylate grafting sugarcane bagasse (SCB-g-MMA) was prepared by the methyl methacrylate (MMA) grafted sugarcane bagasse (SCB) surface after alkali treatment through solid phase grafting method. And its structure was characterized and analyzed by XRD, FTIR, 13C NMR, SEM and Brunauer-Emmett-Teller (BET) methods etc. Then the SCB-g-MMA was applied to adsorb methylene blue (MB) and adsorption property investigation was carried out. The results show that when the initial concentration of MB is 50-400 mg/L, pH value of aqueous solution is 6-12, dosage of adsorbent is more than 10 g/L and adsorption time is more than 40 min, the removal efficiency of MB by SCB-g-MMA is 99% at room temperature. And when the dosage of adsorbent is 2.5 g/L, the adsorption capacity of MB is 97.3 mg/g. In addition, the adsorption kinetics and the adsorption isotherm of SCB-g-MMA for MB are more fitted to the pseudo-second-order kinetic equation and Freundlich isotherm adsorption model, respectively. |
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| Keywords: | sugarcane bagasse solid phase grafting method methyl methacrylate methylene blue adsorption |
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