Chelator-mimetic multi-functionalized hydrogel: Highly efficient and reusable sorbent for Cd, Pb, and As removal from waste water

abstract

• 2016 Elsevier B.V. Medically inspired hydrogels were successfully synthesized by mimicking the structure of current chelating agents. Thioglycolic acid modified polyallylamine (PAAm/TGA) and Dihydroxybenzoic acid-Thioglycolic modified polyallylamine (PAAm/TGA/DHBA) were synthesized following a simple conjugation process. These hydrogels exhibit high affinity, low cost, and high re-usability efficiency. The maximum sorption capacities were significantly higher than those sorbents currently in use. The kinetic study of the hydrogels demonstrated that almost 50% removal occurred in less than 5min. Additionally, the hydrogel exhibited excellent re-usability, maintaining their efficiency in 5 consecutive cycles. These results suggest that these hydrogels can be considered to be potential agents to be used in waste/produced water treatment.

authors

• Liang, Jenn-Tai

published proceedings

• CHEMICAL ENGINEERING JOURNAL

author list (cited authors)

• Mohammadi, Z., Shangbin, S., Berkland, C., & Liang, J.

citation count

• 21

complete list of authors

• Mohammadi, Zahra||Shangbin, Sun||Berkland, Cory||Liang, Jenn-tai

publication date

• January 2017

publisher

• Elsevier  Publisher

published in

• CHEMICAL ENGINEERING JOURNAL  Journal

keywords

• Chelator Mimetic
• High Sorption Capacity
• Hydrogel
• Re-usable
• Toxic Metal Removal

Digital Object Identifier (DOI)

• 10.1016/j.cej.2016.08.121

start page

• 496

end page

• 502

volume

• 307

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.cej.2016.08.121