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Swift catalytic reduction of hazardous pollutants by new generation microgels.
Singh, Vinai Kumar; Kumar, Krishna; Singh, Nishant; Tiwari, Rudramani; Krishnamoorthi, S.
Afiliação
  • Singh VK; Department of Chemistry & Environmental Science, Madan Mohan Malaviya University of Technology, Gorakhpur 273010, UP, India. neerajrab@gmail.com.
  • Kumar K; Department of Chemistry & Environmental Science, Madan Mohan Malaviya University of Technology, Gorakhpur 273010, UP, India. neerajrab@gmail.com.
  • Singh N; University Department of Chemistry, Faculty of Science, Tilka Manjhi Bhagalpur University, Bhagalpur 812007, Bihar, India.
  • Tiwari R; Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, UP, India.
  • Krishnamoorthi S; Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, UP, India.
Soft Matter ; 18(3): 535-544, 2022 Jan 19.
Article em En | MEDLINE | ID: mdl-34919101
In this manuscript, we report for the first time a new generation microgel synthesis without using any divinyl functionalized cross-linker. A new generation less crosslinked microgel structure has been achieved by optimizing the amount of N-hydroxy methyl acrylamide (NHMA) and using a fixed amount of styrene (St), acrylic acid (AA) and N-vinyl pyrrolidone (NVP) via a free radical emulsion solution polymerization technique. Poly(NHMA) works as a hydrophilic as well as a crosslinking agent. Furthermore, microgels have been upgraded into a composite by incorporation of Ag nanoparticles for catalytic reduction applications. Microgels and their composites have been characterized by EDAX, FT-IR, particle size analyzer, SEM, TEM, TGA, UV-vis spectroscopy and XRD. Methylene blue (MB) dye and p-nitrophenol (PNP) were chosen as model hazardous pollutants for catalytic reduction applications. Microgels efficiently adsorb both pollutants over the surface and microgel_Ag composites dramatically reduced both pollutants in the non-toxic form at room temperature by using smaller doses of NaBH4.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article