摘要
以刺槐豆胶(LDG)、海藻酸钠(A)为材料制备复合凝胶珠,探讨反应时间、碱性品红浓度、温度及pH对复合凝胶珠吸附碱性品红的影响。结果表明,复合凝胶珠对碱性品红的吸附在180 min后达到平衡,pH=8为最佳吸附pH,同等条件下,复合凝胶珠对碱性品红的吸附优于活性炭,其对碱性品红的吸附行为符合Freundlich吸附等温方程和颗粒内扩散方程。
Alginate-locust bean gum （A-LBG） composite gel-beads were prepared in the laboratory and studies of the properties as an adsorbent for removing basic fuchsin, a dyestuff, from water were conducted with the emphasis on some influential factors such as different adsorption time, basic fuchsin initial concentration, temperature and pH. Results showed that it took 180 min to reach to the adsorption equilibrium and the optimized condition achieved at pH 8; furthermore, the adsorption behavior fit the Freundlich equation and the modified intra-particle diffusion model. Under the similar condition, the adsorption performance of the composite gel bead was better than that of activated carbon.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2014年第9期32-36,共5页
Environmental Science & Technology
基金
国家自然科学基金项目资助(50773064)
天水师范学院"青蓝"人才工程基金资助
关键词
海藻酸钠
刺槐豆胶
复合凝胶珠
碱性品红
吸附
alginate
locust bean gum
composite gel-beads
basic fuchsin
adsorption
