Novel and Effective Zn-Al-GA LDH Anchored on Nanofibers for High-Performance Heavy Metal Removal and Organic Decontamination: Bio remediation Approach

摘要

Heavy metals and dye contaminations pose the most critical environmental problems facing the world today . These may lead to bad effects on human, animal's health, and aquatic ecosystems. Herein, we report a facile and effective approach to fabricate controllable design of tunable Zn/Al/gallate layered double hydroxide/polystyrene nanofibers (Zn/Al/GA LDH/PSNFs).The prepared materials before and after adsorption process were characterized by BET surface area, X-ray diffraction, FT-IR analysis FESEM and HRTEM. In the current work, the removal of copper metal ions and malachite green dye (MG) by Zn/Al/GA LDH/PSNFs were investigated. Studying the influence of different factors on the performance of pollutant adsorption was estimated. Adsorption kinetics and isotherms of Cu(2+)metal ions and MG dye were investigated under various conditions including (pH 5, dose 0.05 g/L and 2 h) and (pH 8, dose 0.05 g/L and 3 h), respectively, at 25 degrees C. The fabricated Zn/Al/GA LDH/PSNFs material achieved excellent adsorption performance with maximum adsorption capacity 190 mg/g and 60.7 mg/g for Cu(2+)metal ions and MG, respectively. The reusability of the prepared adsorbent achieved very good cycling stability. Furthermore, the Zn/Al/GA LDH/PSNFs showed good antibacterial activity against both Gram-positive and Gram-negative bacteria strains.