摘要
研究了由葡糖杆菌产生的细菌纤维素对Cu2+的吸附。考察了溶液pH值、吸附时间、吸附剂的投加量以及金属离子的初始质量浓度对Cu2+吸附效果的影响,并进一步探讨了细菌纤维素对Cu2+的吸附动力学模拟和吸附等温线模拟。结果表明,吸附动力学可用拟二级速度方程来描述,该材料对Cu2+的吸附平衡符合Langmuir等温吸附方程。
Bacterial cellulose as new sorbent for removing Cu^2＋ was investigated. The effects of performance parameters such as pH, adsorption time, mass concentration of adsorbent and mass concentration of metal ions were analyzed. The results show that the adsorption rate could be well fitted by pseudo-second-order rate model, and adsorption isothem could be described by the Langmuir model.
出处
《材料科学与工程学报》
CAS
CSCD
北大核心
2008年第3期426-429,共4页
Journal of Materials Science and Engineering
关键词
葡糖杆菌
细菌纤维素
CU^2+
吸附
Gluconacetobacter xylinum
bacterial cellulose
Cu^2＋
adsorption
