Use of chemically activated cotton nut shell carbon for the removal of fluoride contaminated drinking water: Kinetics evaluation

	Use of chemically activated cotton nut shell carbon for the removal of fluoride contaminated drinking water: Kinetics evaluation
	Mariappan Rajan 2; Vairamuthu Raj 1; Ganapathy Alagumuthu 3
刊名	CHINESE JOURNAL OF CHEMICAL ENGINEERING
	2015
卷号	23 期号:4 页码:710
关键词	ADSORPTIVE REMOVAL AQUEOUS-SOLUTION WASTE-WATER FLY-ASH EQUILIBRIUM SORPTION CADMIUM ALUMINA THERMODYNAMICS ADSORBENT Activated carbon Cotton nut shell Fluoride Isotherm Kinetics
ISSN号	1004-9541
英文摘要	Chemically activated cotton nut shell carbons (CTNSCs) were prepared by different chemicals and they were used for the removal of fluoride from aqueous solution. Effects of adsorption time, adsorbent dose, pH of the solution, initial concentration of fluoride, and temperature of the solution were studied with equilibrium, thermodynamics and kinetics of the adsorption process by various CTNSC adsorbents. It showed that the chemically activated CTNSCs can effectively remove fluoride from the solution. The adsorption equilibrium data correlate well with the Freundlich isotherm model. The adsorption of fluoride by the chemically activated CTNSC is spontaneous and endothermic in nature. The pseudo first order, pseudo second order and intra particle diffusion kinetic models were applied to test the experimental data. The pseudo second order kinetic model provided a better correlation of the experimental data in comparison with the pseudo-first-order and intra particle diffusion models. A mechanism of fluoride adsorption associating chemisorption and physisorption processes is presented allowing the discussion of the variations in adsorption behavior between these materials in terms of specific surface area and porosity. These data suggest that chemically activated CTNSCs are promising materials for fluoride sorption. (C) 2015 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.
资助项目	[University Grants Commission (UGC), Government of India, New Delhi]
语种	英语
内容类型	期刊论文
源URL	[http://119.78.100.183/handle/2S10ELR8/293416]
专题	中国科学院上海药物研究所
作者单位	1.江苏省盐城地震台 2.中国科学院上海药物研究所 3.Sri Paramakalyani Coll, PG & Res Ctr Chemistry, Alwarkurichi 627412, Tamil Nadu, India
推荐引用方式 GB/T 7714	Mariappan Rajan,Vairamuthu Raj,Ganapathy Alagumuthu. Use of chemically activated cotton nut shell carbon for the removal of fluoride contaminated drinking water: Kinetics evaluation[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2015,23(4):710.
APA	Mariappan Rajan,Vairamuthu Raj,&Ganapathy Alagumuthu.(2015).Use of chemically activated cotton nut shell carbon for the removal of fluoride contaminated drinking water: Kinetics evaluation.CHINESE JOURNAL OF CHEMICAL ENGINEERING,23(4),710.
MLA	Mariappan Rajan,et al."Use of chemically activated cotton nut shell carbon for the removal of fluoride contaminated drinking water: Kinetics evaluation".CHINESE JOURNAL OF CHEMICAL ENGINEERING 23.4(2015):710.