Pb(II) ions removal from aqueous solution by an effective nano-composite
Publish place: International Conference on Society and Environment
Publish Year: 1397
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICSE01_184
تاریخ نمایه سازی: 30 دی 1397
Abstract:
The aim of this study is the investigation of the lead reduction from aqueous solution using sand– supported zero valent iron nanoparticles (S-nZVI). The synthesis of S-nZVI as based on the reduction of ferrous iron with borohydride, in which sand acted as support material. The structure of this nano-composite was characterized by Scanning electron microscope, Xray powder diffraction, and Brunauer-Emmett-Teller analysis. The SEM images revealed that nZVI particles immobilized on sand were spherical and uniformly dispersed on the surface of the stabilizer. Batch experiments indicated that the lead removal efficiency decreased with the increase in the initial Pb(II) concentration , but increased with the increase in the initial pH, contact time , temperature and sorbent dosage. The maximum adsorption capacity of the SnZVI for Pb(II) was 37.2 (mg g−1). In view of this, S-nZVI, as a low-cost nano-composite, has a great potential to be used as an economical and efficient adsorbent to remove lead from water and wastewater.
Authors
Saloome Sepehri
Agricultural Engineering Research Institute (AERI), Agricultural Research, Education and .Extension Organization (AREEO), P.O. Box ۳۱۵۸۵-۸۴۵, Karaj, Iran