Pottery glaze——An excellent adsorbent for the removal of Cu(Ⅱ) from aqueous solution

作     者：Rifaqat Ali Khan Rao M.Kashifuddin 

作者机构：Environmental Research LaboratoryDepartment of Applied ChemistryFaculty of Engineering and TechnologyAligarh Muslim University 

出 版 物：《Chinese Journal Of Geochemistry》 (中国地球化学学报)

年 卷 期：2012年第31卷第2期

页      面：136-146页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

主　　题：吸附剂 水溶液 除铜 陶器 Langmuir 电解质浓度 批处理过程 釉 

摘      要：In the present study,pottery glaze was investigated as an excellent adsorbent for the removal of Cu(Ⅱ) ions from aqueous *** of concentration,contact time,pH,and effect of electrolyte concentration,adsorbent doses and temperature were studied by using batch process to optimize conditions for maximum adsorption. Equilibrium isotherm data were analyzed using Langmuir,Freundlich and Temkin isotherms at 30,40 and 50℃. Thermodynamic parameters such as standard enthalpy change(ΔH0),free energy change(ΔG 0)and entropy change (ΔS0)were also *** parameters indicated that adsorption process is endothermic and spontaneous in *** mean energy calculated from Dubinin-Radushkeuich(D-R)isotherms showed chemical nature of *** kinetic data were evaluated using the pseudo-first-order and pseudo-second order kinetic equations and it was found that data best fitted pseudo-second-order model over a wide range of initial Cu(Ⅱ)concentrations supporting that chemisorption process was *** adsorption and desorption studies carried out by batch process suggested 100% desorption of Cu(Ⅱ)ions with 0.1 N HCl solution.