Adsorption and photocatalyst assisted dye removal and bactericidal performance of ZnO/chitosan coating layer

International Journal of Biological Macromolecules
Tahseen KamalAbdullah M Asiri

Abstract

Pure chitosan and its zinc oxide composite coatings were applied on microfibriller cellulose mat (MCM) to prepare chitosan coated microfibriller cellulose (Chi-MCM) and zinc oxide/chitosan coated microfibriller cellulose (ZnO/Chi-MCM), respectively. X-ray diffraction (XRD), and scanning electron microscopy (SEM), were used to characterize the samples in this study. SEM images showed that dense chitosan solutions (3 and 5wt%) made a thick layer over MCM while diluted solution (1wt%) resulted in wrapping of the chitosan over the individual microfibers and avoided the thick layer formation. Removal of an azo dye methyl orange (MO) from aqueous solution using adsorption and combined adsorption with photodegradation activity of the Chi-MCM and ZnO/Chi-MCM were evaluated, respectively. Compared in the absence of UV light, ZnO/Chi-MCM showed faster and higher degree of dye removal by photocatalytic dissociation and adsorption under ultraviolet irradiation. Various parameters including pH of MO solution and its initial concentration were tested for the removal of MO dye. ZnO/Chi-MCM showed maximum adsorption capacity of 42.8mg/g. Antibacterial activities were also evaluated where ZnO/Chi-MCM displayed a remarkable performance inhibitin...Continue Reading

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Citations

May 18, 2016·Carbohydrate Polymers·Tahseen KamalAbdullah M Asiri
Jun 12, 2016·International Journal of Biological Macromolecules·Shahid Ali KhanAbdullah M Asiri
Oct 30, 2016·International Journal of Biological Macromolecules·Noor TahirSaima Noreen
Oct 28, 2019·Current Pharmaceutical Design·Muhammad IsmailSher B Khan
Oct 19, 2019·Current Pharmaceutical Design·Nasrullah Shah Mazhar Ul-Islam
Oct 13, 2019·Current Pharmaceutical Design·Uzma ArifInn-Kyu Kang
Oct 13, 2019·Current Pharmaceutical Design·Hanif UllahTaous Khan
Nov 28, 2019·Current Pharmaceutical Design·Sher Bahadar Khan, Tahseen Kamal
Dec 8, 2019·Environmental Science and Pollution Research International·Kalsoom AkhtarSher Bahadar Khan
Aug 8, 2020·Journal of Tissue Engineering and Regenerative Medicine·Muhammad Umar Aslam KhanSaira Aftab
Dec 16, 2020·International Journal of Biological Macromolecules·Shah HussainUsman Ghani
Mar 20, 2021·International Journal of Biological Macromolecules·N N BahrudinZ Zainal
May 1, 2021·Materials·Angela SpoialăEcaterina Andronescu
Sep 20, 2021·International Journal of Biological Macromolecules·Mahmoud H Abu ElellaKuk Ro Yoon

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