| 吸附动力学及其机制分析 |
| |
| 引用本文： | 张文标,李文珠,金首文,陈斌,任红星,孙进.吸附动力学及其机制分析[J].浙江林学院学报,2010,27(5):641-645. |
| |
| 作者姓名： | 张文标 李文珠 金首文 陈斌 任红星 孙进 |
| |
| 作者单位： | 1. 浙江农林大学 工程学院 国家木质资源综合利用工程技术中心，浙江 临安 311300；2. 浙江农林大学 理学院，浙江 临安 311300；3. 浙江农林大学 环境科技学院，浙江 临安 311300；4.宁波天韵生态治理工程有限公司，浙江 宁波 315192 |
| |
| 基金项目： | 浙江省科学技术重点项目（2006C13052）; 浙江省宁波市鄞州区科技局资助项目（2008） |
| |
| 摘 要： | 以竹炭粉和壳聚糖为原料，制备竹炭/壳聚糖复合吸附剂，进行扫描电镜（吸收光谱SEM）、红外吸收（FTIR）、X-射线衍射（XRD）等图谱表征，并进行Zn2+吸附试验。结果表明：①壳聚糖较好地负载在竹炭上，凸凹不平明显，蜂窝增强；复合吸附剂对Zn2+的吸附率在80 min后达到93%。②竹炭/壳聚糖复合吸附剂对Zn2+吸附过程的动力学表明，吸附过程符合多孔结构的吸附特征，方程拟合结果更符合二级动力学模型。③Zn2+吸附前后的红外吸收图谱表明，与竹炭/壳聚糖复合吸附剂吸附配位主要发生在—NH2中的氮原子、—OH和C＝O中氧原子上。图9参11
|
| 关 键 词： | 竹炭/壳聚糖 吸附Zn2+ 反应动力学 机制 |
Adsorption kinetics with Zn~（2＋） on bamboo charcoal loaded with chitosan |
| |
| ZHANG Wen-biao,LI Wen-zhu,JIN Shou-wen,CHEN Bin,REN Hong-xing,SUN Jin.Adsorption kinetics with Zn~（2＋） on bamboo charcoal loaded with chitosan[J].Journal of Zhejiang Forestry College,2010,27(5):641-645. |
| |
| Authors: | ZHANG Wen-biao LI Wen-zhu JIN Shou-wen CHEN Bin REN Hong-xing SUN Jin |
| |
| Institution: | 1.National Engineering and Technology Research Center of Wood-Based Resources Comprehensive Utilization,School of Engineering,Zhejiang A ＆ F University,Lin＇an 311300,Zhejiang,China;2.School of Sciences,Zhejiang A ＆ F University,Lin＇an 311300,Zhejiang,China;3.School of Environment Science and Technology,Zhejiang A ＆ F University,Lin＇an 311300,Zhejiang,China;4.Ningbo Tianyun Ecological Engineering Co.,Ltd.,Ningbo 315192,Zhejiang,China) |
| |
| Abstract: | A compound absorbent was made from bamboo charcoal and chitosan（bamboo charcoal/chitosanBCCTS）.Then the compound was characterized with a Scanning Electron Microscope（SEM）,a Fourier Transform Infrared（FTIR） spectrometer,and X-ray diffraction（XRD）.Using BCCTS as the absorption reagent,adsorption to Zn2 ＋ was studied.Results showed that：（1） chitosan was efficiently loaded onto bamboo charcoal forming an increased,but uneven,honeycomb structure with an absorption reagent rate up to 93%.（2） Adsorption characteristics matched those of a vesicular structure with simulation results producing a second order kinetic equation.（3） Comparing the infrared absorption spectrogram results of Zn2＋ before and after absorption showed that adsorption sites for Zn2＋ on the bamboo charcoal/chitosan absorbent were mainly located at N atoms in —NH2 and O atoms in —OH and C O groups. |
| |
| Keywords: | bamboo charcoal/chitosan absorption of Zn2＋ ion absorption kinetics mechanism |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《浙江林学院学报》浏览原始摘要信息 |
|
