摘要
利用造纸污泥与壳聚糖制备造纸污泥-壳聚糖(SL-CSA)纳米复合吸附材料,研究了SL-CSA纳米复合材料对废水中铬离子(Cd^(2+))和铅离子(Pb^(2+))的吸附性能。通过傅里叶变换红外光谱仪(FT-IR)和扫描电子显微镜(SEM)表征证明了复合材料的成功制备。吸附实验表明,SL-CSA纳米复合材料对Cd^(2+)和Pb^(2+)的吸附均遵循准二级动力学方程,属于化学吸附。根据Langmuir模型,SL-CSA纳米复合材料对Cd^(2+)和Pb^(2+)的最大吸附量分别为314.05 mg/g和320.06 mg/g。
Papermaking sludge-chitosan(SL-CSA)nanocomposite adsorption material was prepared by using papermaking sludge and chitosan.The adsorption properties of SL-CSA nanocomposite material on chromium ion(Cd^(2+))and lead ion(Pb^(2+))in wastewater were studied.FT-IR and SEM characterizations proved that the nanocomposite was prepared successfully.The adsorption experiments showed that the adsorptions on Cd^(2+)and Pb^(2+)by SL-CSA nanocomposite material conformed to the pseudo-second-order kinetic equation,which was a chemical-adsorption process.According to Langmuir model,the maximum adsorption capacities of Cd^(2+)and Pb^(2+)by SL-CSA nanocomposite were 314.05 and 320.06 mg/g,respectively.
作者
李娜
胡凤哲
LI Na;HU Fengzhe(College of Chemistry and Food Science,Yulin Normal University,Yulin,Guangxi Zhuang Autonomous Region,537000;Yulin Normal University,Yulin,Guangxi Zhuang Autonomous Region,537000)
出处
《中国造纸学报》
CAS
CSCD
北大核心
2023年第2期109-113,共5页
Transactions of China Pulp and Paper
基金
玉林师范学院2022年度博士启动项目“TiO_(2)改性光催化剂的制备及其对印染废水的处理研究”(项目编号:G2022ZK22)。
