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مقالات فارسیISIکنفرانسهاژورنالها

Synthesis of Piperdinomethylcalix[4]arene Attached Silica Resin for the Removal of Metal Ions from Water: Equilibrium, Thermodynamic and Kinetic Modelling Studies

محل انتشار: نشریه پیشرفته شیمی، دوره: 3، شماره: 5
سال انتشار: 1399
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 170

فایل این مقاله در 12 صفحه با فرمت PDF قابل دریافت می باشد

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لینک ثابت به این مقاله:
https://civilica.com/doc/1141837

شناسه ملی سند علمی:

JR_AJCS-3-5_011

تاریخ نمایه سازی: 22 دی 1399

چکیده مقاله:

Toxic metal pollution is one of the most persistent environmental problems globally. This study deals with the synthesis of the p -piperdinomethyl calix[4]arene attached silica (PAS) resin and to investigate their metal ions removal efficiency from water. In batch adsorption experiment PAS resin shows good adsorption efficacy for the Cu2+ and Pb2+ metal ions. To examine the adsorption mechanism and validate the experimental adsorption data the isotherm models were applied and adsorption of the Cu2+ and Pb2+ metal ions follow Freundlich isotherm model very well with good correlation coefficient. However, the adsorption energy calculated from the D-R isotherm was at the range of 9-14 KJ/mole which describes the ion exchange nature of resin. Furthermore, breakthrough capacity of column was calculated from online adsorption as 0.027 and 0.041 mmol/g-1 for Cu2+ and Pb2+, respectively. Furthermore, thermodynamics and kinetic study revealed that, the adsorption process spontaneity and endothermic that follows the pseudo 2nd order kinetic equation with good regression coefficient.

کلیدواژه ها:

Batch Adsorption ، Toxic metal ions ، Calix[4]arene ، Online adsorption

نویسندگان

Ranjhan Junejo

National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro-۷۶۰۸۰, Pakistan

Shahabuddin Memon

National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro-۷۶۰۸۰, Pakistan

Fatih Durmaz

Department of Chemistry, Selcuk University, Konya ۴۲۰۷۵, Turkey

Ayaz Ali Ahmed

National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro-۷۶۰۸۰, Pakistan

Fakhar Nisa Memon

Department of Chemistry, University of Karachi, Karachi-۷۵۲۷۰, Pakistan

Nida Shams Jalbani

National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro-۷۶۰۸۰, Pakistan

Safia Sanam Memon

National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro-۷۶۰۸۰, Pakistan

Asif Ali Bhatti

Department of Chemistry, Government College University Hyderabad, Hyderabad ۷۱۰۰۰, Pakistan

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