Journal
CARBOHYDRATE POLYMERS
Volume 151, Issue -, Pages 230-236Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2016.05.066
Keywords
Sulfonated cellulose; Metal ions; Adsorption; Removal efficiency; Desorption
Categories
Funding
- National Science Foundation of China [31100434]
- Natural Science Foundation of Shandong Province [ZR2015CM006]
- Foundation of Tianjin Key Laboratory of Pulp Paper [201305]
- Special Fund of Taishan Scholar Project
Ask authors/readers for more resources
Contamination of heavy metal in wastewater has caused great concerns on human life and health. Developing an efficient material to eliminate the heavy metal ions has been a popular topic in recent years. In this work, sulfonated cellulose (SC) was explored as efficient adsorbent for metal ions in solution. Thermo gravimetric analyzer (TGA), X-ray diffraction (XRD) and Fourier-transform infrared spectrometer (FTIR) first analyzed the characterizations of SC. Subsequently, effects of solution pH, adsorbent loading, temperature and initial metal ion concentration on adsorption performance were investigated. The results showed that sulfonated modification of cellulose could decrease the crystallinity and thermostability of cellulose. Due to its excellent performance of adsorption to metal ions, SC could reach adsorption equilibrium status within as short as 2 min. In multi-component solution, SC can orderly removes Fe3+, Pb2+ and Cu2+ with excellent selectivity and high efficiency. In addition, SC is a kind of green and renewable adsorbent because it can be easily regenerated by treatment with acid or chelating liquors. The mechanism study shows that the sulfonic group play a major role in the adsorption process. (C) 2016 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available