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、13C 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50～400 mg/L范围内,当吸附剂投加量大于等于10 g/L时,溶液pH范围在6～12,吸附时间超过40 min,SCB-g-MMA对MB的去除率达到99％;当吸附剂投加量为2.5 g/L时,对MB的吸附量可达97.3 mg/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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