磷酸改性竹炭对水溶液中环丙沙星吸附去除作用研究
Study on Removal of Ciprofloxacin from Water by Phosphoric Acid Modified Bamboo-Charcoal
沈越 1张健2
作者信息
- 1. 江西省环境信息中心,江西南昌330037
- 2. 江西省环境保护科学研究院,江西南昌330037
- 折叠
摘要
[目的]探讨磷酸改性竹炭对环丙沙星的吸附去除效果.[方法]利用磷酸改性后竹炭去除水溶液中的环丙沙星,采用傅里叶转换红外光谱(FTIR)、扫描电子显微镜(SEM)、比表面积(BET)等手段分析竹炭的物理特性,并用吸附等温方程和吸附动力学研究吸附过程.[结果]改性后竹炭比未改性竹炭具有更好地吸附效果,改性后竹发表面结构发生了一定的变化,总孔容和比表面积经改性后均增加,且表面有一些微孔转化成介孔.吸附过程可用Freundlich等温模型描述,二级动力学模型能更好地描述吸附过程.[结论]试验结果为水环境中抗生素的治理研究提供了参考.
Abstract
[Objective] The aim was to discuss the adsorption of ciprofloxacin by phosphoric acid modified bamboo-charcoal.[Method] Phosphoric acid modified bamboo-charcoal was used to remove ciprofloxacin from water,FTIR,SEM,BET were adopted to analyze physical characteristics of bamboo-charcoal,the adsorption process was studied with adsorption isotherm equation and adsorption kinetics.[Result] The modified bamboo-charcoal had better adsorption effect than the unmodified,and the surface structure of the modified bamboo-charcoal changed,vtotal and specific surface area were all increased,the surface had some micro pores transferring into the mesoporous.The adsorption process could be described by the Freundlich isotherm model,the secondary dynamic model could better describe the adsorption process.[Conclusion] The test results provide a reference for governance of antibiotics in water.
关键词
竹炭/环丙沙星/吸附Key words
Bamboo-charcoal/Ciprofloxacin/Adsorption引用本文复制引用
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据