Application of microalgal-ZnO-NPs for reusing polyester/cotton blended fabric wastes after modification by cellulases enzymes

作     者：Osama M.Darwesh Naser G.Al-Balakocy Ahmed Ghanem Ibrahim A.Matter Osama M.Darwesh;Naser G.Al-Balakocy;Ahmed Ghanem;Ibrahim A.Matter

作者机构：Agricultural Microbiology DepartmentNational Research Centre33 EL-Buhouth St.DokkiCairo12622Egypt Protenic and Manmade Fibers DepartmentNational Research CentreDokkiCairo12622Egypt Packaging Materials DepartmentNational Research CentreCairo12622Egypt 

出 版 物：《Waste Disposal and Sustainable Energy》 (废弃物处置与可持续能源（英文）)

年 卷 期：2023年第5卷第4期

页      面：471-482页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：supported by the program of the science technology and innovation funding authority(STDF) Egypt under Grant No.43447 

主　　题：Wastewater remediation Polyester/cotton wastes Cytotoxicity Microalgal-ZnO-NPs Dunaliella sp. Microbial nanotechnology 

摘      要：Polyester/cotton(PET/C)blended fabric wastes are produced daily in huge amounts,which constitutes an economic loss and an environmental threat if it is not reused *** textile waste recycling technologies put much effort into developing fabric materials with unique properties,such as bioactivity or new optical goods based on modern technologies,especially *** this study,zinc oxide nanoparticles(ZnO-NPs)were biosynthesized using the aqueous extract of Dunaliella *** immobilized on PET/C waste fabrics after enzymatically activated with *** produced Dunaliella-ZnO-NPs(10–20 nm with a spherical shape)were characterized by High-resolution transmission electron microscopy(HRTEM),Fourier-transform infrared spectroscopy(FTIR),X-Ray diffraction analysis(XRD),and Scanning electron microscopy-energy dispersive X-ray analyzer(SEM-EDAX),and some functional groups,such as CH,CO,NH,and CN(due to the presence of carboxyl,proteins and hydroxyl groups),were detected,revealing the biosynthesis of *** analysis showed that the resulting ZnO-NPS had potent antimicrobial effects,Ultraviolet(UV)protection capabilities,and no cytotoxic effects on the normal human fibroblast cell line(BJ1).On the other hand,enzymatic treatments of PET/C fabric waste with cellulases enhanced the immobilization of biosynthetic nanoparticles on their *** PET/C fabrics loaded with Dunaliella-ZnO-NPs showed antibacterial and UV protection capabilities making them an eco-friendly and cost-effective candidate for numerous *** applications can include the manufacture of active packaging devices,wastewater treatment units,and many other environmental applications.