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Jele Thabisile Brightwell Sithole Bruce Lekha Prabashni Andrew Jerome 《Cellulose (London, England)》2022,29(8):4629-4643
Cellulose - In this study, three different pulp and paper mill sludge (PPMS) samples collected from different South African mills were chemically and physically characterised to investigate their... 相似文献
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Akpan N. Ikot Gaotsiwe Joel Rampho Precious O. Amadi Uduakobong S. Okorie Makagamathe J. Sithole Mantile L. Lekala 《International journal of quantum chemistry》2020,120(24):e26410
The Shannon entropy (S) and the Fisher Information (I) entropies are investigated for a generalized hyperbolic potential in position and momentum spaces. First, the Schrodinger equation is solved exactly using the Nikiforov-Uvarov-Functional Analysis method to obtain the energy spectra and the corresponding wave function. By Fourier transforming the position space wave function, the corresponding momentum wave function was obtained for the low-lying states corresponding to the ground and first excited states. The positions and momentum of Shannon entropy and Fisher Information entropies were calculated numerically. Finally, the Bialynicki-Birula and Mycielski and the Stam-Cramer-Rao inequalities for the Shannon entropy and Fisher Information entropies, respectively, were tested and were found to be satisfied for all cases considered. 相似文献
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J. N. Orce M. Kumar Raju N. A. Khumalo T. S. Dinoko P. Jones R. A. Bark E. A. Lawrie S. N. T. Majola L. M. Robledo B. Rubio M. Wiedeking J. Easton E. A. Khaleel B. V. Kheswa N. Kheswa M. S. Herbert J. J. Lawrie P. L. Masiteng M. R. Nchodu J. Ndayishimye D. Negi S. P. Noncolela S. S. Ntshangase P. Papka D. G. Roux O. Shirinda P. S. Sithole S. W. Yates 《The European Physical Journal A - Hadrons and Nuclei》2016,52(6):166
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A mixture of eight N-substituted and unsubstituted nitroimidazoles has been separated by high-pressure liquid chromatography with 5% ethanol as the eluent. Compounds with the same capacity ratios were selectively detected electrochemically by differential pulse polarography with a hanging mercury drop electrode. The HMDE detector had higher detection limits than the photometric detector set at 315 nm. 相似文献
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S. Khamlich E. Manikandan J. Sithole I. Zorkani N. Cingo M. Maaza 《Journal of Physics and Chemistry of Solids》2011,72(6):714-718
Monodispersed spherical particles of chromium (III) oxide, α-Cr2O3, were successfully synthesized from a diluted solution of KCr(SO4)2·12H2O using the Aqueous Chemical Growth (ACG) technique. The spherical α-Cr2O3 particles obtained were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), and Raman spectroscopy for structural, surface morphological, chemical, and physical properties, as a function of deposition time. The XRD and Raman spectroscopy showed that aging had no apparent effect on the structure of the obtained uniform fine (in the range of micron-nano-level)-spherical particles of α-Cr2O3. The use of SEM demonstrated that aging had a clear influence on the size and the particles size distribution. Accordingly, the time dependence of the average diameter of α-Cr2O3 spherical particles follows the d3 law as required for diffusion-limited Ostwald ripening. 相似文献
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L. Mdletshe S. S. Ntshangase J. F. Sharpey-Schafer S. N. T. Majola T. R. S. Dinoko N. A. Khumalo E. A. Lawrie R. A. Bark T. D. Bucher N. Erasmus P. Jones S. Jongile B. V. Kheswa J. J. Lawrie L. Makhathini K. L. Malatji B. Maqabuka J. Ndayishimye S. P. Noncolela O. Shirinda M. A. Sithole 《The European Physical Journal A - Hadrons and Nuclei》2018,54(10):176
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Sithole M. A. Sharpey Schafer J. F. Majola S. N. T. Bucher T. D. Dinoko T. R. S. Ntshangase S. S. Lawrie E. A. Khumalo N. A. Jongile S. Mdletshe L. Bark R. A. Erasmus N. Jones P. Kheswa B. V. Lawrie J. J. Makhathini L. Malatji K. L. Maqabuka B. Noncolela S. P. Ndayishimye J. Shirinda O. Zikhali B. R. Masiteng P. L. 《The European Physical Journal A - Hadrons and Nuclei》2019,55(10):1-52
The European Physical Journal A - Photon strength functions describing the average response of the nucleus to an electromagnetic probe are key input information in the theoretical modelling of... 相似文献
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Pooja Dhiman Gaurav Sharma Abdullah N. Alodhayb Amit Kumar Garima Rana Thandiwe Sithole Zeid A. ALOthman 《Molecules (Basel, Switzerland)》2022,27(23)
Constructing visible-light-active Z-scheme heterojunctions has proven fruitful in enhancing the photocatalytic activity of photocatalysts for superior water clean-up. Herein, we report the fabrication of a CoFe2O4@Bi2O3/NiO (CBN) Z-scheme nanoheterojunction. The obtained CBN heterojunction was used for visible-light-assisted degradation of ofloxacin (OFL) in water. The OFL degradation efficiency achieved by the CBN heterojunction was 95.2% in 90 min with a rate constant of kapp = 0.03316 min−1, which was about eight times that of NiO and thirty times that of CoFe2O4. The photocatalytic activity of a Bi2O3/NiO Z-scheme heterojunction was greatly enhanced by the visible activity and redox mediator effect of the cobalt ferrite co-catalyst. Higher charge-carrier separation, more visible-light capture, and the Z-scheme mechanism in the Z-scheme system were the important reasons for the high performance of CBN. The scavenging experiments suggested ●O2− as an active species for superior OFL degradation. The possible OFL degradation pathway was predicted based on LC-MS findings of degradation intermediate products. The magnetic nature of the CBN helped in the recovery of the catalyst after reuse for six cycles. This work provides new insights into designing oxide-based heterojunctions with high visible-light activity, magnetic character, and high redox capabilities for potential practical applications in environmental treatment. 相似文献
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