The effects of cetyltrimethylammonium bromide surfactant on alumina modified zinc oxides

Journal Article · Wed Jun 15 00:00:00 EDT 2016 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2016.02.013· OSTI ID:22581553

Gac, Wojciech ^[1]; Zawadzki, Witold; Słowik, Grzegorz; Pawlonka, Justyna; Machocki, Andrzej ^[1]; Lipke, Agnieszka; Majdan, Marek ^[2]

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1. Department of Chemical Technology, Faculty of Chemistry, Maria Curie-Sklodowska University, 3 M. Curie-Sklodowska Sq., 20-031 Lublin (Poland)
2. Department of Inorganic Chemistry, Faculty of Chemistry, Maria Curie-Sklodowska University, 2 M. Curie-Sklodowska Sq., 20-031 Lublin (Poland)

Highlights: • Synthesis of novel ZnO−Al{sub 2}O{sub 3} oxides in the presence of CTAB surfactant. • Determination of the structural, surface and optical properties. • Nanocrystalline, high-surface area ZnO−Al{sub 2}O{sub 3} oxides. • ZnO-Al{sub 2}O{sub 3} materials of different gap energy. - Abstract: Novel alumina modified zinc oxide materials were prepared by co-precipitation method in the presence of different amounts of cetyltrimethylammonium bromide (CTAB) surfactant. X-ray diffraction, {sup 27}Al magic-angle spinning Nuclear Magnetic Resonance Spectroscopy, and transmission electron microscopy studies evidenced formation of 10–15 nm zinc oxide nanoparticles in the presence of the small amounts of surfactant. Amorphous alumina and zinc aluminate phases of different coordination environment of Al sites were identified. An increase of surfactant concentration led to the elongation of nanoparticles and changes of the nature of hydroxyl groups. Precipitation in the high CTAB concentration conditions facilitated formation of mesoporous materials of high specific surface area. The materials were composed of very small (2–3 nm) zinc aluminate spinel nanoparticles. High concentration of CTAB induced widening of band gap energy.

• OSTI ID: 22581553
• Journal Information: Materials Research Bulletin, Vol. 78; Other Information: Copyright (c) 2016 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ABSORPTION SPECTROSCOPY
ALUMINATES
ALUMINIUM 27
ALUMINIUM OXIDES
CONCENTRATION RATIO
COPRECIPITATION
CRYSTAL STRUCTURE
CRYSTALS
INFRARED SPECTRA
NANOPARTICLES
NANOSTRUCTURES
NMR SPECTRA
OPTICAL PROPERTIES
SPECIFIC SURFACE AREA
SPINELS
SURFACE AREA
SURFACES
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
ZINC OXIDES