Efficient removal of norfloxacin by MOF@GO composite: isothermal, kinetic, statistical, and mechanistic study. (2nd October 2021)

• Record Type: Journal Article
• Authors: Khan, Naseem Ahmad; Shaheen, Salma; Najam, Tayyaba; Shah, Syed Shoaib Ahmad; Javed, Muhammad Sufyan; Nazir, Muhammad Altaf; Hussain, Ejaz; Shaheen, Asma; Hussain, Shahid; Ashfaq, Muhammad
• Is Part Of: Toxin reviews. Volume 40:Number 4(2021)
• Page Start: 915
• Page End: 927
• Publication Date: 2021-10-02
• Subjects: Metal-organic framework -- graphene oxide -- toxic antibiotics -- adsorptive removal -- water treatment; Toxicology -- Periodicals; Toxins -- Periodicals; 615.905
• DOI: 10.1080/15569543.2020.1801750
• Languages: English
• ISSNs: 1556-9543

Abstract

Abstract: In this paper, the facile synthesis of graphene oxide and MOF based composite material for the demanded adsorption of leading antibiotic is reported. The adsorbent showed good results for removal of norfloxacin with high adsorption capacity (1114.82 mg/g) and removal efficiency (93.61 %). In addition, Langmuir model proved most suitable with highest value of R 2 = 0.99929 among three applied isothermal models. The thermodynamic study showed spontaneous and exothermic (ΔH = −1.1×10 −5 Kj/ mol, ΔG = −13324.33 Kj/ mol) nature of adsorption process with reusability of 88.4 % after several cycles. Moreover, statistical analysis and mechanistic study were also performed. HIGHLIGHTS: Synthesis of graphene oxide and MOF based composite material High surface area, void spaces, open metal sites, and tunable morphology. Adsorption of leading antibiotic (norfloxacin). MOF/GO composite with high water stability and reuseability. Isothermal, kinetic, statistical and mechanistic study.