Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Patrick G. Ndungu"'
Publikováno v:
Nanomaterials, Vol 13, Iss 20, p 2810 (2023)
In this work, we report on the synthesis of four morphologies of ZnO, namely, nanoparticles, nanorods, nanosheets, and nanoflowers, from a single precursor Zn(CH3COO)2·2H2O under different reaction conditions. The synthesised nanostructured material
Externí odkaz:
https://doaj.org/article/a4c2e972a87e4476bcd6aca16f0032db
Publikováno v:
Frontiers in Water, Vol 4 (2022)
In this work, environmental occurrence and risk assessment of pharmaceuticals, personal care products (PPCPs), and stimulants are presented. A quantitative technique is described for ultrasonic-assisted solid-phase extraction (SPE) followed by GC-MS
Externí odkaz:
https://doaj.org/article/9f03a90447284290810dc3dcbf657987
Autor:
Lerato Y. Molefe, Nicholas M. Musyoka, Jianwei Ren, Henrietta W. Langmi, Mkhulu Mathe, Patrick G. Ndungu
Publikováno v:
Frontiers in Chemistry, Vol 7 (2019)
Porous materials such as metal organic frameworks (MOFs), zeolite templated carbons (ZTC), and some porous polymers have endeared the research community for their attractiveness for hydrogen (H2) storage applications. This is due to their remarkable
Externí odkaz:
https://doaj.org/article/fd2afbe1839e4db681060bcb2425a951
Publikováno v:
Energies, Vol 14, Iss 22, p 7547 (2021)
The cocombustion of coal and pinus sawdust waste is an economically viable and sustainable option for increasing the share of biomass in energy production. This technology also has the potential to reduce the emission of greenhouse gases from existin
Externí odkaz:
https://doaj.org/article/59d269eccc6f41b78c7dec618aa19bf6
Publikováno v:
Molecules, Vol 26, Iss 14, p 4284 (2021)
Environmental pollutants, such as mycotoxins, pesticides, and pharmaceuticals, are a group of contaminates that occur naturally, while others are produced from anthropogenic sources. With increased research on the adverse ecological and human health
Externí odkaz:
https://doaj.org/article/3d33227679814d5b8865f53b23413fb2
Publikováno v:
Journal of Experimental Nanoscience, Vol 12, Iss 1, Pp 363-383 (2017)
Metal nanoparticle (MNP) catalysts used for the synthesis of multiwalled carbon nanotubes (MWCNTs) consisted of single metals (Fe, Ni or Co) and bimetallic mixture (CoFe, NiFe or NiCo). MWCNTs were successfully synthesised at 200 °C in 10 min using
Externí odkaz:
https://doaj.org/article/8a146850059b42628207432b511ed472
Autor:
Veronica W. O. Wanjeri, Sefater Gbashi, Jane C. Ngila, Patrick Njobeh, Messai A. Mamo, Patrick G. Ndungu
Publikováno v:
International Journal of Analytical Chemistry, Vol 2019 (2019)
Multiwalled carbon nanotube (MWCNT) was fixed onto the surface of a magnetic silica (Fe3O4@SiO2) substrate via chemical vapour deposition (CVD). Acetylene gas was used as the carbon source and cobalt oxide as the catalyst. The chemical and physical c
Externí odkaz:
https://doaj.org/article/8bf867731cf34169b858dfa58570d475
Publikováno v:
Materials, Vol 13, Iss 18, p 3945 (2020)
Considering its availability, renewable character and abundance in nature, this review assesses the opportunity of the application of biomass as a precursor for the production of carbon-based nanostructured materials (CNMs). CNMs are exceptionally sh
Externí odkaz:
https://doaj.org/article/05d096e572cb46bcb84c47f83bc5fd95
Publikováno v:
Materials, Vol 8, Iss 5, Pp 2415-2432 (2015)
Nanocomposites of poly(3-hexylthiophene) (P3HT) and nitrogen-doped carbon nanotubes (N-CNTs) have been synthesized by two methods; specifically, direct solution mixing and in situ polymerization. The nanocomposites were characterized by means of tran
Externí odkaz:
https://doaj.org/article/168687b905f840679585dee54eb37304
Autor:
Denga Ramutshatsha-Makhwedzha, Jane Catherine Ngila, Patrick G. Ndungu, Philiswa Nosizo Nomngongo
Publikováno v:
Journal of Marine Science and Engineering, Vol 7, Iss 5, p 133 (2019)
This work reports the preparation and application of Fe2O3-SiO2-PAN nanocomposite for the removal of Cr3+, Cu2+, Al3+, Ba2+, Zn2+, Ni2+, Mn2+, Co2+, and Ti3+ from seawater. X-ray diffraction (XRD), scanning electron microscope/energy dispersive X-ray
Externí odkaz:
https://doaj.org/article/cf5c75f306e546a6b795306f2b09f5f7