Simultaneous degradation and reduction of multiple organic compounds by poly(vinyl imidazole) cryogel-templated Co, Ni, and Cu metal nanoparticles
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Tarih
2020
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Royal Soc Chemistry
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Superporous poly(vinyl imidazole) (p(VI)) cryogel was employed to prepare Co, Ni and Cu metal nanoparticles in situ. The catalytic performance of p(VI)-M cryogel composites in the degradation of methylene blue (MB) and eosin yellow (EY) and in 4-nitrophenol (4-NP) reduction in the presence of NaBH4 in aqueous media was determined as Co > Cu > Ni for MB, Co > Ni > Cu for EY and Ni approximate to Co > Cu for 4-NP. Binary and tertiary mixtures of these substrates (dyes and 4-NP) were also used to assess the best catalytic performance among the p(VI)-M composites, showing that p(VI)-Co was the best catalyst with over 95% conversion in 5 min regardless of single, binary or tertiary substrate mixtures. It was further shown that over 99% conversion for each substrate in the MB + EY + 4-NP triple mixture can be readily attained within similar to 30 min of reaction time. P(VI)-Co composite catalysts are capable of simultaneous elimination of multiple toxic organic compounds from aqueous environments, providing great opportunities in real applications.
Açıklama
Anahtar Kelimeler
Catalytic-Reduction, Poly(N-Vinyl Imidazole), Hydrogen Generation, Dyes, 4-Nitrophenol, Tio2, Ag, Composites, Hydrolysis, Microgel
Kaynak
New Journal of Chemistry
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
44
Sayı
11
