Waste fiber-based poly(hydroxamic acid) ligand for toxic metals removal from industrial wastewater

Md. Lutfor Rahman and Zhi-Jian Wong and Mohd Sani Sarjadi and Collin Glen Joseph Anthony Joseph and Sazmal E. Arshad and Baba Musta and Mohd Harun Abdullah and UNSPECIFIED (2021) Waste fiber-based poly(hydroxamic acid) ligand for toxic metals removal from industrial wastewater. Polymers, 13. pp. 1-20. ISSN 2073-4360 (E-ISSN)

	Text Waste fiber-based poly(hydroxamic acid) ligand for toxic metals removal from industrial wastewater ABSTRACT.pdf Download (78kB)
	Text Waste fiber-based poly(hydroxamic acid) ligand for toxic metals removal from industrial wastewater FULL TEXT.pdf Restricted to Registered users only Download (791kB) \| Request a copy

URL: https://www.mdpi.com/2073-4360/13/9/1486/htm

Abstract

Toxic metals in the industrial wastewaters have been liable for drastic pollution hence a powerful and economical treatment technology is needed for water purification. For this reason, some pure cellulosic materials were derived from waste fiber to obtain an economical adsorbent for wastewater treatment. Conversion of cellulose into grafting materials such as poly(methyl acrylate)-grafted cellulose was performed by free radical grafting process. Consequently, poly(hydroxamic acid) ligand was produced from the grafted cellulose. The intermediate products and poly(hydroxamic acid) ligand were analyzed by FT-IR, FE-SEM, TEM, EDX, and XPS spectroscopy. The adsorption capacity (qe) of some toxic metals ions by the polymer ligand was found to be excellent, e.g., copper capacity (qe) was 346.7 mg.g−1 at pH 6. On the other hand, several metal ions such as cobalt chromium and nickel also demonstrated noteworthy sorption capacity at pH 6. The adsorption mechanism obeyed the pseudo second-order rate kinetic model due to the satisfactory correlated experimental sorption values (qe). Langmuir model isotherm study showed the significant correlation coefficient with all metal ions (R2 > 0.99), indicating that the single or monolayer adsorption was the dominant mode on the surface of the adsorbent. This polymer ligand showed good properties on reusability. The result shows that the adsorbent may be recycled for 6 cycles without any dropping of starting sorption capabilities. This polymeric ligand showed outstanding toxic metals removal magnitude, up to 90–99% of toxic metal ions can be removed from industrial wastewater.

Item Type:	Article
Keyword:	Adsorption , Waste fiber , Poly(Hydroxamic acid) , Wastewate , Heavy metals
Subjects:	T Technology > TD Environmental technology. Sanitary engineering
Department:	FACULTY > Faculty of Science and Natural Resources
Depositing User:	SAFRUDIN BIN DARUN -
Date Deposited:	26 Jul 2021 14:12
Last Modified:	26 Jul 2021 14:12
URI:	https://eprints.ums.edu.my/id/eprint/30099

Actions (login required)

View Item