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A green synthetic approach using chili plant supported Ag/Ag2O@P25 heterostructure with enhanced photocatalytic properties under solar irradiation
KTH Royal Inst Technol, Dept Chem, Ecol Chem Grp, Sch Chem Sci & Engn, Stockholm, Sweden;Menoufia Univ, Fac Sci, Dept Chem, Shibin Al Kawm 32512, Egypt.
Menoufia Univ, Fac Sci, Dept Chem, Shibin Al Kawm 32512, Egypt.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Medicinal Chemistry, Farmakognosi. KTH Royal Inst Technol, Dept Chem, Ecol Chem Grp, Sch Chem Sci & Engn, Stockholm, Sweden;Menoufia Univ, Fac Sci, Dept Chem, Shibin Al Kawm 32512, Egypt.ORCID iD: 0000-0002-2519-6690
Kafrelsheikh Univ, Inst Nanosci & Nanotechnol, Kafrelsheikh 33516, Egypt.
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2019 (English)In: Optik (Stuttgart), ISSN 0030-4026, E-ISSN 1618-1336, Vol. 192, article id 162943Article in journal (Refereed) Published
Abstract [en]

As the environmental pollution is a global, catastrophic occurrence, green synthesis of different catalysts has long been pursued. Herein, Capsicum annuum L (chili) extract-based catalysts were used for the fabrication of Ag/Ag2O nanoparticles (NPs) without harsh conditions. The prepared Ag/Ag2O NPs were uniform with an average size of 11.4 nm. The Ag/Ag2O was smoothly coupled with P25 to produce Ag/Ag2O@P25 photocatalyst which had effective electron-hole pair separation and active sites for high photocatalytic activity. The catalyst degraded 98.7% of the model pollutant methylene blue (MB) and catalytic conversion of 100% 2,4-dinitroaniline (2,4-DNA) within 60 s were realized under energy saving solar-light illumination, matching the rules of "green chemistry". In addition, the prepared photocatalyst exhibited superior stability and reusability, and the hot filtration test proved the heterogeneity of the catalyst.

Place, publisher, year, edition, pages
2019. Vol. 192, article id 162943
Keywords [en]
Green synthesis, Ag/Ag2O nanoparticles, Heterostructure, Photocatalysis, Uv/visible-light
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URN: urn:nbn:se:uu:diva-397677DOI: 10.1016/j.ijleo.2019.162943ISI: 000494471400031OAI: oai:DiVA.org:uu-397677DiVA, id: diva2:1373923
Available from: 2019-11-28 Created: 2019-11-28 Last updated: 2019-11-28Bibliographically approved

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El-Seedi, Hesham

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