چکیده مقاله
This study presents the synthesis, characterization, and wastewater treatment performance of a novel hybrid nanocomposite composed of graphene oxide GO and y alumina y Al2O3 Functionalization was achieved through silanization using 3 glycidyloxypropyltrimethoxysilane GPTMS for GO and 3 aminopropyltriethoxysilane APTES for y Al2O3, followed by covalent grafting via epoxy amine linkage FTIR spectroscopy confirmed successful grafting, with clear evidence of Si O Si stretching and reduction of epoxy ring vibrations BET surface area analysis revealed that the GO/y Al2O3 hybrid retained a high specific surface area 198 08 m²/g , comparable to commercial y Al2O3, confirming that GO did not hinder porosity UV Vis spectroscopy demonstrated the hybrid's high affinity for silver ions, as indicated by a gradual decrease in AgNO3 absorbance at ~430 nm with increasing nanoparticle concentration 1 5% Real world wastewater from a metal industry source was treated with GO/y Al2O3 at various concentrations 0%, 3%, 4%, and 5% Substantial reductions in chemical oxygen demand COD , biological oxygen demand BOD , and turbidity were observed At 5% nanoparticle dosage, COD and BOD were reduced from 1162 mg/L and 480 mg/L to 64 mg/L and 11 mg/L, respectively, while turbidity decreased from >1100 NTU to 1 62 NTU These findings suggest that the GO/y Al2O3 hybrid nanocomposite is a powerful multifunctional adsorbent capable of simultaneously removing heavy metals, reducing organic load, and improving water clarity Its scalability, stability, and synergy between GO and y Al2O3 functionalities make it a promising material for industrial wastewater treatment applications
کلیدواژهها
نویسندگان
Salar Sadri
Department of Chemical Engineering, Shah C, Islamic Azad University, Shahreza, Iran
Navid Joupari
Department of Polymer Engineering, Amirkabir University of Technology, Tehran, Iran
Mohammad Hassan Vakili
Department of Chemical Engineering, Shah C, Islamic Azad University, Shahreza, Iran
شیوه ارجاع
Sadri, Salar and Joupari, Navid and Vakili, Mohammad Hassan,1404,Covalent Synthesis and Performance Evaluation of Graphene Oxide/y-Alumina Hybrid Nanocomposite for Industrial Wastewater Treatment,Fourth International Congress for Chemical Engineering and Petroleum Industry students,Tehran
ارائهشده در
مجموعه مقالات چهارمین کنگره بین المللی دانشجویان مهندسی شیمی و صنعت نفت29 آبان 1404 · تهران