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Removal Process of Cu2+ from Aqueous Solutions using Expanded Vermiculite
Wang J. H.; Yan S. Y.; Fan Y. W.; Chen Z. Y.; Wang L.
2012
Source PublicationASIAN JOURNAL OF CHEMISTRY
ISSN0970-7077
Volume24Issue:2Pages:611-614
AbstractThe adsorption of Cu2+ from aqueous solution by expanded vermiculite was studied in batch mode. The sorption process was fast and equilibrium was achieved in ca. 50 min of contact. The effect of adsorbent dosage, contact time, temperature and initial Cu2+ concentration was investigated. The removal efficiency of Cu2+ using expanded vermiculite reached 99 % in low Cu2+ concentration. Experimental results indicated that a pseudo-second-order reaction model provided the best description of the data with a correlation coefficient 0.99 for different temperatures. The rate constants of adsorption by expanded vermiculite were defined by second-order kinetics of rate constant 0.0228, 80.878 and 120.280 g/mg/min(-1) at 298, 303 and 323 K, respectively. The results indicated that this system was an endothermic process.
KeywordAdsorption Copper Expanded Vermiculite Kinetics
Subject AreaChemistry
Indexed BySCI
WOS IDWOS:000300464000028
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Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/1642
Collection材料物理与化学研究室
AffiliationChinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China;Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China;Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang J. H.,Yan S. Y.,Fan Y. W.,et al. Removal Process of Cu2+ from Aqueous Solutions using Expanded Vermiculite[J]. ASIAN JOURNAL OF CHEMISTRY,2012,24(2):611-614.
APA Wang J. H.,Yan S. Y.,Fan Y. W.,Chen Z. Y.,&Wang L..(2012).Removal Process of Cu2+ from Aqueous Solutions using Expanded Vermiculite.ASIAN JOURNAL OF CHEMISTRY,24(2),611-614.
MLA Wang J. H.,et al."Removal Process of Cu2+ from Aqueous Solutions using Expanded Vermiculite".ASIAN JOURNAL OF CHEMISTRY 24.2(2012):611-614.
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