水产学报2012，Vol.36Issue(2)：306-313,8.DOI:10.3724/SP.J.1231.2012.27608
草鱼鱼鳞对刚果红的吸附性能及其机理
Absorption ability and mechanism of fish scales from grass carp to Congo red
摘要
Abstract
In this study,the sorbent was prepared from fish scale of grass carp and the absorption capability of this sorbent to different chemical dyes was determined. At the same time, the best absorption conditions and the absorption mechanism of this sorbent were studied by use of kinetic and thermodynamic analysis and FTIR assay. The results show that the adsorbent from fish scales has good absorption capacity for the dyes which have sulfonic acid group and the order of adsorbent capabilities to different dyes is: Congo red > carmine > brilliant blue > sunset yellow > methylene blue. While the temperature was 25 ℃, the absorbent dosages was 0.2 g/L,the potential of hydrogen was 7,the concentration of Congo red was 14 n,g/mL,and the effect of fish scales sorbent on Congo red was the best. The quasi secondary dynamic model could reflect the isothermal absorption dynamics of different dosage of fish scales sorbent. The results of kinetic and thermodynamic analysis showed that the endothermic process of this adsorbent was spontaneous and irreversible. The infrared analysis showed that the functional groups of fish scales on Congo red absorption were composed of amino, carboxyl, phosphate groups and so on, which belonged to protein and hydroxyapatite of fish scales.关键词
鱼鳞/刚果红/吸附/吸附机理Key words
fish scales/ Congo red/ absorption/ absorption mechanism分类
轻工纺织引用本文复制引用
熊进,汪海波,张国艳..草鱼鱼鳞对刚果红的吸附性能及其机理[J].水产学报,2012,36(2):306-313,8.基金项目
国家自然科学基金面上项目(21076166) （21076166）
湖北省自然科学基金重点项目(2009CDA11) （2009CDA11）
武汉市农副资源循环利用与新产品开发工程技术中心资助项目(201120637175) （201120637175）
武汉工业学院研究生创新基金计划项目(2010cx002) （2010cx002）
