Muhammad Rizwan , Kanza Kayani , Zahid Qamar , Zhenping Liu , Vellaisamy A.L. Roy
{"title":"Cobalt ferrite-MXene Nanohybrid: A dual-action approach for synergistic doxorubicin removal through adsorption-photocatalysis","authors":"Muhammad Rizwan , Kanza Kayani , Zahid Qamar , Zhenping Liu , Vellaisamy A.L. Roy","doi":"10.1016/j.seppur.2025.133405","DOIUrl":null,"url":null,"abstract":"<div><div>The increasing presence of emerging organic contaminants (EOCs), including pharmaceuticals, constitutes a serious threat to aquatic biological systems and human beings primarily due to the persistence and bioaccumulative nature of EOCs. Among these, doxorubicin (DOX), a widely used chemotherapeutic agent, has emerged as a significant environmental contaminant due to improper disposal. This study presents a dual-function nanohybrid comprising of cobalt ferrite-MXene (<span><math><mrow><mi>C</mi><mi>F</mi><mi>O</mi><mo>-</mo><msub><mrow><mi>T</mi><mi>i</mi></mrow><mn>3</mn></msub><msub><mi>C</mi><mn>2</mn></msub></mrow></math></span>) synthesized via a wet sonication method as a very effective material for the removal of DOX through synergistic adsorption and photocatalysis. The structural and surface properties of the samples were comprehensively characterized using X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), UV–Visible (UV–Vis) spectroscopy, X-ray Photoelectron Spectroscopy (XPS), and Dynamic Light Scattering (DLS), which confirmed successful fabrication of <span><math><mrow><mi>C</mi><mi>F</mi><mi>O</mi><mo>-</mo><msub><mrow><mi>T</mi><mi>i</mi></mrow><mn>3</mn></msub><msub><mi>C</mi><mn>2</mn></msub></mrow></math></span> nanohybrid. Vibrating Sample Magnetometer (VSM) was also utilized to investigate the magnetic properties of nanohybrid. Under optimized circumstance, <span><math><mrow><mi>C</mi><mi>F</mi><mi>O</mi><mo>-</mo><msub><mrow><mi>T</mi><mi>i</mi></mrow><mn>3</mn></msub><msub><mi>C</mi><mn>2</mn></msub></mrow></math></span> nanohybrid demonstrates remarkable adsorption capacity (15.16 mg/g) and photocatalytic efficiency, leading to a 97 % DOX removal at pH 8.5. The adsorption process is based on pseudo-second-order kinetics as well as Sips isotherms, highlighting multilayer adsorption on heterogeneous active sites. Enhanced photocatalytic degradation is attributed to the formation of a Schottky junction which promotes efficient electron-hole separation. The recyclability of the material is proven up to five cycles with negligible loss in performance which indicates stability and reusability. These findings suggest that the developed nanohybrid offers a cost-effective, recyclable and eco-friendly approach for removing DOX from wastewater. Its enhanced performance without generating secondary toxic substances, making it a sustainable approach for environmental remediation.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"372 ","pages":"Article 133405"},"PeriodicalIF":8.1000,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Separation and Purification Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1383586625020027","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The increasing presence of emerging organic contaminants (EOCs), including pharmaceuticals, constitutes a serious threat to aquatic biological systems and human beings primarily due to the persistence and bioaccumulative nature of EOCs. Among these, doxorubicin (DOX), a widely used chemotherapeutic agent, has emerged as a significant environmental contaminant due to improper disposal. This study presents a dual-function nanohybrid comprising of cobalt ferrite-MXene () synthesized via a wet sonication method as a very effective material for the removal of DOX through synergistic adsorption and photocatalysis. The structural and surface properties of the samples were comprehensively characterized using X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), UV–Visible (UV–Vis) spectroscopy, X-ray Photoelectron Spectroscopy (XPS), and Dynamic Light Scattering (DLS), which confirmed successful fabrication of nanohybrid. Vibrating Sample Magnetometer (VSM) was also utilized to investigate the magnetic properties of nanohybrid. Under optimized circumstance, nanohybrid demonstrates remarkable adsorption capacity (15.16 mg/g) and photocatalytic efficiency, leading to a 97 % DOX removal at pH 8.5. The adsorption process is based on pseudo-second-order kinetics as well as Sips isotherms, highlighting multilayer adsorption on heterogeneous active sites. Enhanced photocatalytic degradation is attributed to the formation of a Schottky junction which promotes efficient electron-hole separation. The recyclability of the material is proven up to five cycles with negligible loss in performance which indicates stability and reusability. These findings suggest that the developed nanohybrid offers a cost-effective, recyclable and eco-friendly approach for removing DOX from wastewater. Its enhanced performance without generating secondary toxic substances, making it a sustainable approach for environmental remediation.
期刊介绍:
Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.