dc.creator | Marković, Smilja | |
dc.creator | Stojković Simatović, Ivana | |
dc.creator | Ahmetović, Sanita | |
dc.creator | Veselinović, Ljiljana | |
dc.creator | Stojadinović, Stevan | |
dc.creator | Rac, Vladislav | |
dc.creator | Škapin, Srečo Davor | |
dc.creator | Uskoković, Dragan | |
dc.date.accessioned | 2023-12-09T13:29:51Z | |
dc.date.available | 2023-12-09T13:29:51Z | |
dc.date.issued | 2018 | |
dc.identifier.isbn | 978-86-919111-3-3 | |
dc.identifier.uri | http://rimsi.imsi.bg.ac.rs/handle/123456789/2970 | |
dc.description.abstract | Zinc oxide-based materials have a great potential to be applied as photocatalysts in the processes
of removal of organic and biological pollutants from drinking and wastewaters. A major
drawback of ZnO as visible-light absorber is a band energy gap of 3.37 eV, which restricts the
material to absorb UV light only. This drawback can be overcame by modifying the optical
absorption properties of zinc oxide particles. Different approaches have been applied to modify
the visible light photocatalytic activity of ZnO materials: (1) metal and nonmetal ion doping, (2)
hydrogenation, (3) the incorporation of crystalline defects in the form of vacancies and
interstitials, (4) the modification of particles morphology and surface topology, etc.
In this study we investigated the influence of different surfactants on the morphology, optical
properties and functionality of ZnO particles. Two different surfactants were employed during
microwave processing of ZnO particles, cetyltrimethylammonium bromide (CTAB) as cationic
and Pluronic F-127 as non-ionic one. The crystal structure and phase purity of the ZnO particles
were determined by X-ray diffraction and Raman spectroscopy. Effects of the surfactants on
particles morphology and texture properties were observed with field emission scanning electron
microscopy (FE–SEM) and nitrogen adsorption–desorption isotherm, respectively. The optical
properties were studied using UV–Vis diffuse reflectance and photoluminescence (PL)
spectroscopy. Functionality of ZnO particles was studied due to their photocatalytic and
electrochemical activities. Photocatalytic activity was examined via decolorization of methylene
blue under direct sunlight irradiation. Electrochemical behavior of the ZnO samples as anode
material was evaluated by linear sweep voltammetry in Na2SO4
electrolyte; the oxygen evolution
kinetics were determined and compared. | sr |
dc.language.iso | en | sr |
dc.publisher | Materials Research Society of Serbia Knez Mihailova 35/IV, P.O.Box 433, 11000 Belgrade, Serbia | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45004/RS// | sr |
dc.rights | openAccess | sr |
dc.rights.uri | https://creativecommons.org/licenses/by-sa/4.0/ | |
dc.source | Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018 | sr |
dc.subject | ZnO particles | sr |
dc.title | CTAB- and pluronic F-127-assisted microwave processing of ZnO particles with modified morphology and optical properties | sr |
dc.type | conferenceObject | sr |
dc.rights.license | BY-SA | sr |
dc.citation.spage | 70/O.S.II.9 | |
dc.identifier.fulltext | http://rimsi.imsi.bg.ac.rs/bitstream/id/7541/Markovic-YUCOMAT-2018.pdf | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_rimsi_2970 | |
dc.type.version | publishedVersion | sr |