Zobrazeno 1 - 10
of 79
pro vyhledávání: '"K.T. Hillie"'
Autor:
David E. Motaung, James Tshilongo, K.T. Hillie, Teboho P. Mokoena, Zamaswazi P. Tshabalala, Mudalo Jozela, Hendrik C. Swart
Publikováno v:
Applied Surface Science. 571:151121
Real-time detection of n-propanol vapour is important in human health protection. Thus, we report on the influence of large surface area and crystallinity of p-type NiO nanostructures on propanol sensing characteristics. Structural properties of p-ty
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93e4a9333b9c84f9cbbce9cebb52255e
https://doi.org/10.1016/j.apsusc.2021.151121
https://doi.org/10.1016/j.apsusc.2021.151121
Publikováno v:
Sensors and Actuators B: Chemical. 347:130530
We present the engineering of various concentrations of rare-earth europium (Eu3+) ions in the range of 1–4 wt% doped in p-type NiO for selective detection of toluene prepared utilizing the hydrothermal method. The undoped showed a nanoflake-like,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d57c2c421f1c35e051e49d5d23a95aa
https://doi.org/10.1016/j.snb.2021.130530
https://doi.org/10.1016/j.snb.2021.130530
Autor:
G. L. Kabongo, Gugu H. Mhlongo, P.S. Mbule, Mokhotjwa Simon Dhlamini, K.T. Hillie, Bakang Moses Mothudi
Publikováno v:
Journal of Luminescence. 187:141-153
In the present study, a succession of thulium (Tm)-doped zinc oxide (ZnO) nanostructures samples were prepared by sol-gel method using zinc acetate dihydrate, thulium nitrate pentahydrate and sodium hydroxide species with absolute ethanol as solvent.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c337be73366a023c18223db53106f33
https://doi.org/10.1016/j.jlumin.2017.02.024
https://doi.org/10.1016/j.jlumin.2017.02.024
Publikováno v:
Sensors and Actuators B: Chemical. 338:129774
Aromatic hydrocarbons like benzene, toluene, ethylbenzene and xylene (BTEX) are lethal volatile organic compounds, which should be precisely monitored to maintain occupational safety and indoor air quality. Thus, herein, the superior sensitivity towa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1ee78d6263f5ad2db7facc0f0a7ee29
https://doi.org/10.1016/j.snb.2021.129774
https://doi.org/10.1016/j.snb.2021.129774
Publikováno v:
Applied Surface Science. 542:148634
Propanol and benzene, toluene, ethylenebenzene and xylene (BTEX) vapours are within the volatile organic compounds (VOCs) family and are utilized in industrial and petroleum goods, are greatly toxic in human health and environment. Therefore, it is d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6f9cf0423705399eea1da76a3cb1598
https://doi.org/10.1016/j.apsusc.2020.148634
https://doi.org/10.1016/j.apsusc.2020.148634
Publikováno v:
Applied Surface Science. 525:146002
The detection of hazardous and toxic gases in homes and corporate world, with highly sensitive and selective manner continues to be of great interest. Therefore, we report on the gas sensing characteristics of NiO nanostructures with crystallite size
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffb3b9bf070a78a6ba9146322e9a7e05
https://doi.org/10.1016/j.apsusc.2020.146002
https://doi.org/10.1016/j.apsusc.2020.146002
Autor:
Gugu H. Mhlongo, Mokhotjwa Simon Dhlamini, K.T. Hillie, Thomas Malwela, G. L. Kabongo, Bakang Moses Mothudi
Publikováno v:
Journal of Alloys and Compounds. 591:156-163
Un-doped and Tb3+ doped ZnO nanocrystals with different concentrations of Tb3+ were synthesized by a sol–gel method and their photoluminescence (PL) properties were investigated. The successful incorporation of Tb3+ ions with different concentratio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::894e7fb4f2600fa3296d70fcefe1fe02
https://doi.org/10.1016/j.jallcom.2013.12.075
https://doi.org/10.1016/j.jallcom.2013.12.075
Autor:
G. L. Kabongo, Gugu H. Mhlongo, Mokhotjwa Simon Dhlamini, Bakang Moses Mothudi, K.T. Hillie, H.C. Swart
Publikováno v:
Materials Letters. 119:71-74
In this work, the sol–gel method was used to prepare Ytterbium (Yb 3+ ) doped ZnO nano-phosphors with different concentrations of Yb 3+ ions. Their structural, morphological, photoluminescence, electronic states and the chemical composition analysi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a45202ce7cd60e1ff2a029d476fe579
https://doi.org/10.1016/j.matlet.2013.12.076
https://doi.org/10.1016/j.matlet.2013.12.076
Temperature-dependence on the structural, optical, and paramagnetic properties of ZnO nanostructures
Autor:
K.T. Hillie, Gugu H. Mhlongo, Gerald F. Malgas, S.S. Nkosi, H.C. Swart, Bonex W. Mwakikunga, David E. Motaung
Publikováno v:
Applied Surface Science. 293:62-70
Violet-blue emitting ZnO nanostructures were synthesized by a microwave-assisted hydrothermal method followed by post-synthesis annealing at different temperatures. Scanning electron microscope analysis revealed a morphological transformation upon in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e33fc527f12f59fd962546da58f2bf92
https://doi.org/10.1016/j.apsusc.2013.12.076
https://doi.org/10.1016/j.apsusc.2013.12.076
Publikováno v:
Optical Materials. 36:732-739
Luminescence properties of Pr 3+ single doped SiO 2 and Pr 3+ co-doped SiO 2 :Tb 3+ /Eu 3+ nanophosphors synthesized using sol–gel method were investigated. X-ray diffraction (XRD), and scanning electron microscope (SEM) were used to study the phas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22468adc85356ee6db52da368ed2398b
https://doi.org/10.1016/j.optmat.2013.10.031
https://doi.org/10.1016/j.optmat.2013.10.031