Theoretical Investigation of the Adsorption of Cadmium Iodide from Water Using Polyaniline Polymer Filled with TiO2 and ZnO Nanoparticles

Mahdhi, Noureddine; Alsaiari, Norah Salem; Alzahrani, Fatimah Mohammed; Katubi, Khadijah Mohammedsaleh; Amari, Abdelfattah; Hammami, Saber

doi:10.3390/w13182591

Open AccessArticle

Theoretical Investigation of the Adsorption of Cadmium Iodide from Water Using Polyaniline Polymer Filled with TiO₂ and ZnO Nanoparticles

by

Noureddine Mahdhi

^1,*

,

Norah Salem Alsaiari

^2,*

,

Fatimah Mohammed Alzahrani

^2,*

,

Khadijah Mohammedsaleh Katubi

^2,*

,

Abdelfattah Amari

^3,4

and

Saber Hammami

⁵

¹

Laboratory Materials Organizations and Properties, Tunis El Manar University, Tunis 2092, Tunisia

²

Chemistry Department, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia

³

Department of Chemical Engineering, College of Engineering, King Khalid University, Abha 61411, Saudi Arabia

⁴

Research Laboratory of Energy and Environment, Department of Chemical Engineering, National School of Engineers, Gabes University, Gabes 6072, Tunisia

⁵

FEMTO-ST Institute, CNRS UMR-6174, Université de Bourgogne Franche-Comté, 25030 Besançon, France

^*

Authors to whom correspondence should be addressed.

Water 2021, 13(18), 2591; https://doi.org/10.3390/w13182591

Submission received: 28 August 2021 / Revised: 15 September 2021 / Accepted: 16 September 2021 / Published: 19 September 2021

(This article belongs to the Special Issue Water Treatment by Adsorption and Catalytic Methods)

Download

Browse Figures

Review Reports Versions Notes

Abstract

The removal of heavy metals from drinking water has attracted great interest in water purification technology. In this study, a biocompatible Polyaniline (PANI) polymer filled with TiO₂ and ZnO nanoparticles (NPs) is considered as an adsorbent of cadmium iodide from water. Theoretical investigation of the van der Waals (vdW) interactions deduced from the Hamaker constant calculated on the basis of Lifshitz theory was presented. It was found that the surface energy as well as the work of adhesion between water and PANI/NPs across air increases with an increasing volume fraction of the TiO₂ and ZnO nanoparticles. Consequently, an increase in the Laplace pressure around the cavities/porosities was found, which leads to the enhancement of the specific contact surface between water and PANI/NPs. On the other hand, for the interactions between CdI₂ particles and PANI/NPs surface across water, we show that the interactions are governed principally by the attractive London dispersion forces. The vdW energy and force increase proportionally with the augmentation of the volume fraction of nanoparticles and of the radius of the CdI₂ particle. Particularly, the PANI/TiO₂ has been proved to be a better candidate for adsorption of cadmium iodide from water than PANI/ZnO.

Keywords: adsorption; polyaniline; cadmium iodide

Share and Cite

MDPI and ACS Style

Mahdhi, N.; Alsaiari, N.S.; Alzahrani, F.M.; Katubi, K.M.; Amari, A.; Hammami, S. Theoretical Investigation of the Adsorption of Cadmium Iodide from Water Using Polyaniline Polymer Filled with TiO₂ and ZnO Nanoparticles. Water 2021, 13, 2591. https://doi.org/10.3390/w13182591

AMA Style

Mahdhi N, Alsaiari NS, Alzahrani FM, Katubi KM, Amari A, Hammami S. Theoretical Investigation of the Adsorption of Cadmium Iodide from Water Using Polyaniline Polymer Filled with TiO₂ and ZnO Nanoparticles. Water. 2021; 13(18):2591. https://doi.org/10.3390/w13182591

Chicago/Turabian Style

Mahdhi, Noureddine, Norah Salem Alsaiari, Fatimah Mohammed Alzahrani, Khadijah Mohammedsaleh Katubi, Abdelfattah Amari, and Saber Hammami. 2021. "Theoretical Investigation of the Adsorption of Cadmium Iodide from Water Using Polyaniline Polymer Filled with TiO₂ and ZnO Nanoparticles" Water 13, no. 18: 2591. https://doi.org/10.3390/w13182591

APA Style

Mahdhi, N., Alsaiari, N. S., Alzahrani, F. M., Katubi, K. M., Amari, A., & Hammami, S. (2021). Theoretical Investigation of the Adsorption of Cadmium Iodide from Water Using Polyaniline Polymer Filled with TiO₂ and ZnO Nanoparticles. Water, 13(18), 2591. https://doi.org/10.3390/w13182591

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Menu

Theoretical Investigation of the Adsorption of Cadmium Iodide from Water Using Polyaniline Polymer Filled with TiO₂ and ZnO Nanoparticles

Abstract

Share and Cite

Article Metrics

Article Access Statistics

Further Information

Guidelines

MDPI Initiatives

Follow MDPI