title: CuO embedded chitosan spheres as antibacterial adsorbent for dyes.
abstract: Chitosan/copper oxide (CS/CuO) composite spheres were prepared by simple mixing of CuO nanomaterials in CS solution followed by dropwise addition to NH4OH solution. The characterizations of all the prepared spheres were carried out by FESEM, EDS, XRD, XPS, and FTIR analyses while the thermal properties were analyzed by TGA. Further the ability of composite spheres was tested as an easily removable pollutant adsorbent from water containing different dyes and compared with pure CS. Composite spheres were found to be the best adsorbent when applied to remove indigo carmine (IC), congo red (CR) and methyl orange (MO) from water. Amongst the three dyes, CS/CuO composite spheres were more selective toward MO adsorption. CS/CuO composite spheres also displayed significant antibacterial activity by inhibiting Pseudomonas aeruginosa growth. Thus the fabricated composite spheres can be used as a biosorbent in the future.
authors.affiliation: Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O. Box 80203, 21589 Jeddah, Saudi Arabia; Department of Chemistry, King Abdulaziz University, P.O. Box 80203, 21589 Jeddah Saudi Arabia. Electronic address: sbkhan@kau.edu.sa.
authors.forename: Sher Bahadar
authors.initials: SB
authors.lastname: Khan
authors.affiliation: Department of Chemistry, King Abdulaziz University, P.O. Box 80203, 21589 Jeddah Saudi Arabia.
authors.forename: Fayaz
authors.initials: F
authors.lastname: Ali
authors.affiliation: Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O. Box 80203, 21589 Jeddah, Saudi Arabia; Department of Chemistry, King Abdulaziz University, P.O. Box 80203, 21589 Jeddah Saudi Arabia.
authors.forename: Tahseen
authors.initials: T
authors.lastname: Kamal
authors.affiliation: Department of Biology, Faculty of Science, King Abdulaziz University, P.O. Box 80203, 21589 Jeddah, Saudi Arabia.
authors.forename: Yasir
authors.initials: Y
authors.lastname: Anwar
authors.affiliation: Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O. Box 80203, 21589 Jeddah, Saudi Arabia; Department of Chemistry, King Abdulaziz University, P.O. Box 80203, 21589 Jeddah Saudi Arabia.
authors.forename: Abdullah M
authors.initials: AM
authors.lastname: Asiri
authors.affiliation: Department of Packaging, Yonsei University, 1 Yonseidae-gil, Wonju, Gangwon-do 220-710, Republic of Korea.
authors.forename: Jongchul
authors.initials: J
authors.lastname: Seo
mesh_terms: D000327:Adsorption; D064753:Ammonium Hydroxide / Q000737:chemistry; D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology; D001391:Azo Compounds / Q000302:isolation & purification; D048271:Chitosan / Q000737:chemistry*; D004396:Coloring Agents / Q000302:isolation & purification*; D003224:Congo Red / Q000302:isolation & purification; D003300:Copper / Q000737:chemistry*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007203:Indigo Carmine / Q000302:isolation & purification; D007700:Kinetics; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D011550:Pseudomonas aeruginosa / Q000187:drug effects / Q000254:growth & development; D013696:Temperature; D062065:Wastewater / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods
chemical_list: D064753:Ammonium Hydroxide; D000900:Anti-Bacterial Agents; D001391:Azo Compounds; D048271:Chitosan; D004396:Coloring Agents; D003224:Congo Red; D003300:Copper; D007203:Indigo Carmine; D062065:Wastewater; D014874:Water Pollutants, Chemical; C100258:methyl orange; C030973:cupric oxide
keywords: Antibacterial activity; Biosorbent; Chitosan; Composite; CuO; Spheres