Zeolite-based absorbent: polyacrylic acid loading for enhanced ferric(III) removal from aqueous solution

Zhou, Junjie, Ma, Hongguo, Chen, Lvyu, Ding, Xudong, Fang, Yuchun, Pan, Jianlin, Wang, Hongdi, Tan, Bin and Zhou, Jian 2024. Zeolite-based absorbent: polyacrylic acid loading for enhanced ferric(III) removal from aqueous solution. Journal of Environmental Chemical Engineering 12 (6) , 114317. 10.1016/j.jece.2024.114317

Full text not available from this repository.

Abstract

The process of adsorption shows promise as an effective method for water purification due to its cost-effectiveness, reusability, and adaptability in treating various metal ions. However, it has been noted that this method has limited Fe(III) removal capacity and is susceptible to interference from co-existing ions. To address this, a new adsorbent material (ZEO-PAA) was developed by loading polyacrylic acid (PAA) onto NaOH-treated zeolite using γ-Glycidoxypropyltrimethoxysilane (GPTMS) as a linker. In comparison to natural zeolite, ZEO-PAA demonstrates a strong affinity for Fe(III), exhibiting remarkable Fe(III) removal performance even in the presence of other common cations, such as Na(I), Ca(II), and Mg(II). Furthermore, ZEO-PAA maintains high adsorption performance for heavy metal ions such as Pb(II), Cu(II), Ni(II), Cd(II), and Cr(III). After 7 cycles of adsorption/regeneration, the Fe(III) removal rate of ZEO-PAA remains over 85 %. The adsorption process of ZEO-PAA for Fe(III) aligns with the Langmuir isotherm model and PSO Kinetics model, with a maximum adsorption capacity (qm) of 37.53 mg/g. This study provides valuable insights into the development of a reusable adsorbent material, demonstrating great potential for practical water treatment.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Engineering
Publisher:	Elsevier
ISSN:	2213-2929
Date of Acceptance:	30 September 2024
Last Modified:	28 Feb 2025 12:01
URI:	https://orca.cardiff.ac.uk/id/eprint/176456

Actions (repository staff only)

Edit Item