聚乙烯醇/壳聚糖/硝酸铈共混纤维毡的制备及其对Cr(Ⅵ)的吸附性能

纺织学报 ›› 2012, Vol. 33 ›› Issue (5): 15-19.

聚乙烯醇/壳聚糖/硝酸铈共混纤维毡的制备及其对Cr(Ⅵ)的吸附性能

卢丽萍,王芳芳,吴敏

生态纺织教育部重点实验室（江南大学）

收稿日期:2011-04-18 修回日期:2012-01-11 出版日期:2012-05-15 发布日期:2012-05-15
通讯作者: 吴敏 E-mail:xycwxdq@sina.com

Preparation of PVA/CS/Ce(NO3)3 blend fiber felt and its applications to Cr(Ⅵ) ions

LU Li-Ping, WANG Fang-Fang, WU Min

Key Laboratiry of Eco-Textiles (Jiangnan University), Ministry of Education

Received:2011-04-18 Revised:2012-01-11 Online:2012-05-15 Published:2012-05-15
Contact: WU Min E-mail:xycwxdq@sina.com

摘要/Abstract

摘要： 将不同质量比的聚乙烯醇(PVA)、壳聚糖(CS)和硝酸铈(Ce(NO3)3)溶于稀乙酸中，进行静电纺丝，制备PVA/CS/Ce(NO3)3共混纤维毡。运用扫描电镜和红外光谱对吸附前后的样品进行表征。研究了pH、时间、浓度对Cr(Ⅵ)吸附的影响。结果表明：纤维毡对Cr(Ⅵ)的吸附是基团与基团的螯合作用，pH=4时吸附效果最好，吸附等温线符合Langmuir吸附模型，对Cr(Ⅵ)的吸附饱和量为59.81mg/g，Cr(Ⅵ)的去除率达到87%。

关键词: 静电纺丝, 壳聚糖, 吸附, Cr(Ⅵ)离子

Abstract: The blend solution of polyvinyl alcohol(PVA) and chitosan(CS) and cerous nitrate(Ce(NO3)3) dissolving in dilute acetic at different mass ratios was spun into PVA/CS/Ce(NO3)3 blend fiber felt via electrospinning process.Using scanning electron microscopy and infrared spectrum on the adsorption of samples before and after the plating. Studied pH、time and concentration for Cr(Ⅵ) adsorption influence.Results show:the adsorption of metal ions were binding of metal ions to the chelating sites on the blend fiber felt,the effect of adsorption was the best when pH=4,the adsorption data of Cr(Ⅵ) were fitted well with langmuir isotherm,the equilibrium adsorption capacities were 59.81mg/g,the dispel of Cr(Ⅵ) can reach 87%.

Key words: electrospinning, chitosan, adsouption, Cr(Ⅵ)ion

卢丽萍, 王芳芳, 吴敏. 聚乙烯醇/壳聚糖/硝酸铈共混纤维毡的制备及其对Cr(Ⅵ)的吸附性能[J]. 纺织学报, 2012, 33(5): 15-19.

LU Li-Ping, WANG Fang-Fang, WU Min. Preparation of PVA/CS/Ce(NO3)3 blend fiber felt and its applications to Cr(Ⅵ) ions[J]. JOURNAL OF TEXTILE RESEARCH, 2012, 33(5): 15-19.

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