Synthesis, characterization and catalytic activity of tungstocobaltate-pillared ZnAl-layered double hydroxide | Zendy

Rita Das | Zendy; Bhabani Shankar Mohanta | Zendy; Nigamananda Das | Zendy

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Synthesis, characterization and catalytic activity of tungstocobaltate-pillared ZnAl-layered double hydroxide

Author(s) -

Rita Das,

Bhabani Shankar Mohanta,

Nigamananda Das

Publication year - 2017

Publication title -

european chemical bulletin

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.131

H-Index - 5

ISSN - 2063-5346

DOI - 10.17628/ecb.2017.6.415-420

Subject(s) - hydroxide , characterization (materials science) , catalysis , layered double hydroxides , chemical engineering , materials science , chemistry , inorganic chemistry , nanotechnology , organic chemistry , engineering

Tungstocobalate (Co III W 12 O 40 5- ) intercalated ZnAl-layered double hydroxide (ZnAl-CoW 12 ) was prepared via rehydration of calcined ZnAl-LDH under N 2 atmosphere. Characterization by chemical analysis together with powder XRD, FT-IR, TG-DTA and UV-VIS DRS provided evidence of intercalation of Co III W 12 O 40 5- (58 wt. %) in the interlayer of LDH. The catalytic activity of ZnAl-CoW 12 was evaluated for hydrogen peroxide mediated decolourisarion of methyl orange and oxidation of benzaldehyde to benzoic acid under varying reaction conditions. ZnAl-CoW 12 was found effective for both the reactions and stable under the experimental conditions for repetitive use without any noticeable decrease in activity.

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