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| 竹炭负载壳聚糖对Zn2+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. 竹炭负载壳聚糖对Zn2+吸附动力学及其机制分析[J]. 浙江林学院学报, 2010, 27(5) |
| 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，浙江省宁波市鄞州区科技局资助项目 |
| 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. |
| 关 键 词： | 竹炭/壳聚糖 吸附Zn2+ 反应动力学 机制 |
Adsorption kinetics with Zn2+ on bamboo charcoal loaded with chitosan |
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| ZHANG Wen-biao,LI Wen-zhu,JIN Shou-wen,CHEN Bin,REN Hong-xing,SUN Jin. Adsorption kinetics with Zn2+ on bamboo charcoal loaded with chitosan[J]. Journal of Zhejiang Forestry College, 2010, 27(5) | |
| Authors: | ZHANG Wen-biao LI Wen-zhu JIN Shou-wen CHEN Bin REN Hong-xing SUN Jin |
| Affiliation: | ZHANG Wen-biao1,LI Wen-zhu1,JIN Shou-wen2,CHEN Bin3,REN Hong-xing4,SUN Jin4(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,3.School of Environment Science and Technology,4.Ningbo Tianyun Ecological Engineering Co.,Ltd.,Ningbo 315192,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 character... |
| Keywords: | bamboo charcoal/chitosan absorption of Zn2 ion absorption kinetics mechanism |
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