Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Osman Ahmed Zelekew"'
Autor:
Abraham Solomon Kasa, Dinsefa Mensur Andoshe, Noto Susanto Gultom, Dong-Hau Kuo, Xiaoyun Chen, Hairus Abdullah, Osman Ahmed Zelekew
Publikováno v:
Applied Water Science, Vol 14, Iss 9, Pp 1-13 (2024)
Abstract Noble metal-free nickel manganese oxysulfide (NiMnOS) catalysts were successfully prepared via a facile and eco-friendly approach at a low synthesis temperature of 90 °C in a water bath. The catalysts were synthesized by varying Ni: Mn mola
Externí odkaz:
https://doaj.org/article/9b64bfc16f3e434eb2c4422a02a02d49
Autor:
Biruktait Ayele Lemecho, Dinsefa Mensur Andoshe, Noto Susanto Gultom, Hairus Abdullah, Dong-Hau Kuo, Xiaoyun Chen, Temesgen D. Desissa, Demeke Tesfaye Wondimageng, Yi-nan Wu, Osman Ahmed Zelekew
Publikováno v:
ACS Omega, Vol 9, Iss 12, Pp 13714-13727 (2024)
Externí odkaz:
https://doaj.org/article/2b5427740d584f1eb820cbc4683521c2
Autor:
Hildana Tesfaye Berede, Dinsefa Mensur Andoshe, Noto Susanto Gultom, Dong-Hau Kuo, Xiaoyun Chen, Hairus Abdullah, Tadele Hunde Wondimu, Yi-nan Wu, Osman Ahmed Zelekew
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract The global concern over water pollution caused by organic pollutants such as methylene blue (MB) and other dyes has reached a critical level. Herein, the Allium cepa L. peel extract was utilized to fabricate copper oxide (CuO) nanoparticles.
Externí odkaz:
https://doaj.org/article/96f67d1c12de4336a27c3b2be34dc031
Autor:
Zhengjie Su, Binghong Wu, Longyan Chen, Mengistu Tadesse Mosisa, Pengkun Zhang, Qinhan Wu, Dong-Hau Kuo, Dongfang Lu, Osman Ahmed Zelekew, Jinguo Lin, Xiaoyun Chen
Publikováno v:
Journal of Science: Advanced Materials and Devices, Vol 8, Iss 4, Pp 100645- (2023)
A bismuth-titanium bimetal oxysulfide BiTiOS catalyst was prepared via hydrolysis and characterized by different testing techniques. This BiTiOS catalyst, forming the Ti-doped Bi2(O,S)3 phase, can format the oxygen vacancy, increase its electrochemic
Externí odkaz:
https://doaj.org/article/332947ea9b1144c19860e00c94c09a03
Publikováno v:
Materials Research Express, Vol 11, Iss 8, p 085001 (2024)
Introduction . Owing to the increasing use of organic dyes, the biosynthesis of metal oxide nanocatalysts is urgently needed as an economical and environmentally friendly solution to reduce their waste release. Method . In this study, we synthesized
Externí odkaz:
https://doaj.org/article/41e141a48a4048859010ad0fd7a4f498
Autor:
Setegn Geta Aragaw, Gebisa Bekele Feysia, Noto Susanto Gultom, Dong-Hau Kuo, Hairus Abdullah, Xiaoyun Chen, Osman Ahmed Zelekew
Publikováno v:
Applied Water Science, Vol 12, Iss 6, Pp 1-12 (2022)
Abstract Water pollution as a result of releasing organic and inorganic pollutants is the main concern and health risk factor for human beings. To minimize the effect of toxicity from pollutants, enormous method has been applied. In this report, the
Externí odkaz:
https://doaj.org/article/95818fca7451420aa2176798f7159870
Autor:
Mekdes Tenkolu Maru, Bedasa Abdisa Gonfa, Osman Ahmed Zelekew, Sanaulla Pathapalya Fakrudeen, H. C. Ananda Murthy, Eneyew Tilahun Bekele, Fedlu Kedir Sabir
Publikováno v:
Green Chemistry Letters and Reviews, Vol 16, Iss 1 (2023)
ABSTRACTThe photocatalytic degradation of the organic pollutants using the green synthesized catalysts is an environmentally safe approach for the wastewater treatment. In this study, ZnO and CuO nanoparticles (NPs) and ZnO/CuO nanocomposites (NCs) w
Externí odkaz:
https://doaj.org/article/f30909a45dc842368bdef61591210824
Autor:
Mintesinot Tamiru Mengistu, Tadele Hunde Wondimu, Dinsefa Mensur Andoshe, Jung Yong Kim, Osman Ahmed Zelekew, Fekadu Gashaw Hone, Newaymedhin Aberra Tegene, Noto Susanto Gultom, Ho Won Jang
Publikováno v:
Bioinorganic Chemistry and Applications, Vol 2023 (2023)
A simple wet chemical ultrasonic-assisted synthesis method was employed to prepare visible light-driven g-C3N4-ZnO-Co3O4 (GZC) heterojunction photocatalysts. X-ray diffraction (XRD), scanning electromicroscopy (SEM), Fourier-transform infrared spectr
Externí odkaz:
https://doaj.org/article/9978ab2cf1b94d61a32dabeada1ad3b5
Autor:
Qinhan Wu, Xuran Wang, Jiawei Fu, Osman Ahmed Zelekew, Adugna Boke Abdeta, Dong-Hau Kuo, Jubin Zhang, Zhanhui Yuan, Jinguo Lin, Xiaoyun Chen
Publikováno v:
Journal of Science: Advanced Materials and Devices, Vol 6, Iss 4, Pp 578-586 (2021)
Wool-coiled MoSrOS bimetal oxysulfide catalysts were synthesized by a simple method. The catalysts were characterized by different instruments. The MoSrOS reduction activities were also investigated by the reduction of Cr(VI), Rhodamine-B (RhB), Meth
Externí odkaz:
https://doaj.org/article/7d983eb16fe94053b92ee6126899dfa8
Autor:
Temesgen Debelo Desissa, Matusal Meja, Dinsefa Andoshe, Femi Olu, Fekadu Gochole, Gebisa Bekele, Osman Ahmed Zelekew, Tatek Temesgen, Belay Brehane, Kumsa D. Kuffi, Tadele Hunde
Publikováno v:
SN Applied Sciences, Vol 3, Iss 8, Pp 1-10 (2021)
Abstract High-temperature structural ceramic materials require stability in terms of thermal and mechanical properties. High entropy oxides (HEOs) are among the emerging novel family of advanced ceramic materials with peculiar functional properties.
Externí odkaz:
https://doaj.org/article/924007eff76e4644848488ac0b537b85