We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Soybean hulls residue adsorbent for rapid removal of lead ions.
- Authors
Wei, Xuling; Li, Hui-Ru; Wang, Li; He, Yu-Feng; Wang, Rong-Min
- Abstract
Soybean hulls residue (SHR) is a kind of typical biocompatible and edible natural polymer with containing cellulose, glycoprotein and lignin. In this paper, SHR is extracted by simple method and characterized by FTIR, XRD, SEM, elemental and XPS analysis. Then, this natural polymer adsorbent is applied to remove Pb(II), and main factors on Pb(II) removal by SHR are investigated in details, such as initial concentration of lead, pH value, SHR dosage, oscillating time and temperature. It shows that the removal rate of Pb(II) quickly increases more than 90% within the first 5 min, and the removal rate get to 99% within 20 min. The isotherm, kinetic models and thermodynamic parameters are applied to test the experimental data, respectively. It indicates that Pb(II) adsorption on SHR is an endothermic and spontaneous process. The adsorption mechanism has also been investigated. In summary, SHR exhibits excellent adsorption ability for removing Pb(II), which could be used as a fast edible antidote in emergency, especially in cases of mass poisoning by lead.
- Subjects
LEAD; SOY bran; BIOPOLYMERS; BIOMEDICAL materials; GLYCOPROTEINS; CELLULOSE; LIGNINS
- Publication
Pure & Applied Chemistry, 2014, Vol 86, Issue 5, p711
- ISSN
0033-4545
- Publication type
Article
- DOI
10.1515/pac-2013-1101