V2O5, CeO2 and Their MWCNTs Nanocomposites Modified for the Removal of Kerosene from Water

Thamer Adnan Abdullah,Ali Dawood Salman,Karol Kułacz,Miklós Jakab,Balázs Zsirka,Rashed Taleb Rasheed,Viktor Sebestyén,Tatjána Juzsakova,Muhammad Ali Mallah,Le Phuoc Cuong

doi:10.3390/nano12020189

Abstract

In this paper, the application of multiwalled carbon nanotubes (MWCNTs) based on metal oxide nanocomposites as adsorbents for the removal of hydrocarbons such as kerosene from water was investigated. Functionalized MWCNTs were obtained by chemical oxidation using concentrated sulfuric and nitric acids. V2O5, CeO2, and V2O5:CeO2 nanocomposites were prepared using the hydrothermal method followed by deposition of these oxides over MWCNTs. Individual and mixed metal oxides, fresh MWCNTs, and metal oxide nanoparticle-doped MWCNTs using different analysis techniques were characterized. XRD, TEM, SEM, EDX, AFM, Raman, TG/DTA, and BET techniques were used to determine the structure as well as chemical and morphological properties of the newly prepared adsorbents. Fresh MWCNTs, Ce/MWCNTs, V/MWCNTs, and V:Ce/MWCNTs were applied for the removal of kerosene from a model solution of water. GC analysis indicated that high kerosene removal efficiency (85%) and adsorption capacity (4270 mg/g) after 60 min of treatment were obtained over V:Ce/MWCNTs in comparison with fresh MWCNTs, Ce/MWCNTs and V/MWCNTs. The kinetic data were analyzed using the pseudo-first order, pseudo-second order, and intra-particle diffusion rate equations.

Highlights

Environmental pollution has been a matter of concern globally from several decades.numerous policies and frameworks have sought to deal with it
V2O5:CeO2 nanoparticles clearly depict that the average grain sizes were found to be 70.3, V2 O5 :CeO2 nanoparticles clearly depict that the average grain sizes were found to be 70.3, 56.9, and 71.4 nm as shown in Figure 5a–c, respectively
The untreated multiwalled carbon nanotubes (MWCNTs) sample used for surface modification shows two notable The untreated MWCNTs sample used for surface modification shows two notable regions (Figure 7 MWCNTs)

Summary

Introduction

Environmental pollution has been a matter of concern globally from several decades. Numerous policies and frameworks have sought to deal with it. Water pollution resulting from oil spills has been comprehensively studied by researchers in order to save marine and aquatic life and peoples’ lives [1]. Since water polluted with hydrocarbons has been the main reason for numerous waterborne diseases, its consumption is toxic to humans [2]. Nanomaterials 2022, 12, 189 and human development primarily relies on industrial development, the exploitation of crude oil and its various derivatives for the smooth functioning of industrialization has increased. The extensive increase in terms of the exploration and refining of crude oil and its subsequent transportation worldwide has had a terrible impact on the environment

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Conclusion