Anti-bacterial chitosan/zinc phthalocyanine fibers supported metallic and bimetallic nanoparticles for the removal of organic pollutants. (1st October 2017)

• Record Type: Journal Article
• Authors: Ali, Fayaz; Khan, Sher Bahadar; Kamal, Tahseen; Anwar, Yasir; Alamry, Khalid A.; Asiri, Abdullah M.
• Is Part Of: Carbohydrate polymers. Volume 173(2017)
• Page Start: 676
• Page End: 689
• Publication Date: 2017-10-01
• Subjects: Chitosan -- Composite fibers -- Composite pellets -- Metal nanoparticles -- Recycling -- Nanocomposite -- Catalytic reduction; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2017.05.074
• Languages: English
• ISSNs: 0144-8617

Abstract

Highlights: Novel chitosan composite fibers as support for nanoparticles. Metallic and bimetallic zero valent nanoparticles grown onto the composite fibers. Efficient catalysts for the reduction of nitrophenols and dyes. Excellent catalytic efficiency. High antibacterial activity. Abstract: In this report, we prepared chitosan (CS) membrane, CS/zinc phthalocyanine (ZnPc-CS) composite fibers and pellets as support for the synthesis of zero valent metal nanoparticles. The composite fibers and pellets of ZnPc-CS were prepared by simply dispersing 5 wt% of ZnPc in CS solution. ZnPc-CS composite were applied as economical host material for the development of metallic and bimetallic zero valent nanoparticles. The composites of ZnPc-CS were put in 0.1 M metals salt solutions (mono- and bi-metallic) for the adsorption of metal ions. The metal ions adsorbed ZnPc-CS fibers were treated with 0.1 M sodium borohydride (NaBH4) aqueous solution for conversion of metal ions into nanoparticles. Thus, through water based in-situ preparation process, metals nanoparticles loaded on ZnPc-CS composite fibers and pellets were achieved. The presence of respective metals nanoparticles on the composite fibers was confirmed using FE-SEM, XRD and FTIR. Moreover, we determined that these composites exhibit excellent catalytic efficiency and recyclability in the reduction reactions of 4-nitrophenol (4-NP), methyl orange (MO) and cango red (CR). In addition, these composites displayed high antibacterial activity as tested against pathogenic bacteria Escherichia coli .