Adsorptive removal of Pb(II) from water using metal-organic frameworks Cu-BTC and Zn-BTC

سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 343

نسخه کامل این مقاله ارائه نشده است و در دسترس نمی باشد

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:

شناسه ملی سند علمی:

IICC21_276

تاریخ نمایه سازی: 5 آذر 1398

چکیده مقاله:

Metal-organic frameworks are a kind of porous nanoscale materials, which features attractive adsorption of small molecules, large pores, high surface areas, etc., making them attractive for analytical applications [1]. In this study, two MOFs, which named by Cu-BTC and Zn-BTC, with the benzene-1,3,5-tricarboxylic acid linker, were successfully synthesized. Various variables including contact time, pH solution, initial concentration of metal ions and the effect of absorbent dose using ultrasonic device were studied. The use of an ultrasonic device plays an important role in shortening the absorption time of lead ions by increasing the absorbent dispersion in the solution [2]. For Pb(II) metal ions the sorption capacities of 333 mg g-1 and 312 mg g-1 were obtained effectively by Cu-BTC and Zn-BTC structures, respectively. The experimental adsorption data for the Cu-BTC and Zn-BTC MOFs, are well suited with the pseudo-second-order kinetic model (R2 = 0.99), and adsorption isotherms of Pb2+ metal ions with the Langmuir model are in good agreement. This work exhibits two BTC-based MOFs to remove Pb2+ from pollutant water in less than 30 min effectively.

نویسندگان

Zahra Seyfi Hasankola

Department of Chemistry, Iran University of Science and Technology, Tehran, Iran.

Rahmatollah Rahimi,

Department of Chemistry, Iran University of Science and Technology, Tehran, Iran.

Vahid Safarifard

Department of Chemistry, Iran University of Science and Technology, Tehran, Iran.