We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Adsorption removal of Pb and Cd on lignocellulose- g -acrylic acid/montmorillonite nanocomposite from aqueous solutions.
- Authors
Du, Min; Li, Qi; Wang, Li
- Abstract
Lignocellulose-g-acrylic acid/montmorillonite nanocomposite materials (LNC-g-AA/MMT) was used as an adsorbent to remove Pb2+, Cd2+ions from the aqueous solutions.The effects of various experimental conditions including initial metal ions concentration, initial solution pH, contact time, and temperature were investigated. The data showed that 0.1 g of LNC-g-AA/MMT, 0.04 mol/L of Pb2+, and 0.05 mol/L of Cd2+, pH 5.5, contact time of 120 and 60 min at 30°C, a maximum adsorption capacity of Pb2+ (918.2 mg/g) and Cd2+ (482.5 mg/g) were observed. The adsorption kinetics and isotherms have been studied, which implied that all absorption processes were in good agreement with the pseudo-second-order model and the Langmuir isotherm, respectively. The desorption process was also studied. The results indicated that the desorption capacity of LNC-g-AA/MMT for Pb2+and Cd2+was 821.9 and 448.2 mg/g with 0.1 g metal ions-loaded adsorption, 0.06 and 0.04 mol/L of HNO3concentration, contact time 60 min, contact temperature 30°C, in which the maximum desorption percentage was 90 and 92.9%, respectively.
- Subjects
LIGNOCELLULOSE; MONTMORILLONITE; NANOCOMPOSITE materials; ADSORPTION (Chemistry); AQUEOUS solutions
- Publication
Desalination & Water Treatment, 2016, Vol 57, Issue 7, p3261
- ISSN
1944-3994
- Publication type
Article
- DOI
10.1080/19443994.2014.984338