Preparation and characterization of cadmium selenide nanoparticles loaded on activated carbon and their application for muroxide removal: kinetic and isotherm study of removal process
Publish place: 2nd National Conference On Oil,Gas and petrochemicals
Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
View: 1,474
This Paper With 11 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
NCOGP02_008
تاریخ نمایه سازی: 23 خرداد 1392
Abstract:
In the first, cadmium selenide nanoparticles loaded on activated carbon (CdSe-NP-AC) has been synthesized and characterized by different techniques including XRD and SEM. Then, this new adsorbent successfully has been applied for the removal of muroxide (MO) from aqueous solution in batch studies, while the effect of various experimental parameters like initial pH (pH0), contact time, amount of (CdSe-NP-AC) and initial MO concentration (C0) on its removal percentage was examined by one at a time optimization method. It was found following optimization of variable, the adsorption of MO onto (CdSe-NP-AC) followed pseudo-second-order kinetics and show Tempkin and Langmuir models for interpretation of experimental data. It was observed that by increasing the temperature the removal percentage was improved and the positive change in entropy (ΔS◦) and heat of adsorption (ΔH◦) show the endothermic nature of process, while the high negative value in Gibbs free energy change (ΔG◦) indicates the feasible nature of adsorption process
Keywords:
Authors
Saeed Zamani Amirabad
Chemistry Department, Islamic Azad University, Omidiyeh Branch, Omidiyeh, Iran
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :