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Electrostatically Assembled CdS–Co 3 O 4 Nanostructures for Photo‐assisted Water Oxidation and Photocatalytic Reduction of Dye Molecules
Author(s) -
Yehezkeli Omer,
de Oliveira Débora R. B.,
Cha Jennifer N.
Publication year - 2015
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201401490
Subject(s) - nanorod , photocatalysis , materials science , nanoparticle , methylene blue , nanostructure , molecule , electron transfer , conjugated system , visible spectrum , photochemistry , nanotechnology , chemical engineering , catalysis , chemistry , optoelectronics , polymer , organic chemistry , engineering , composite material
Electrostatic assembly is used here to couple CdS nanorods with Co 3 O 4 nanoparticles into photocatalytic systems that simultaneously oxidize water and mediate electron transfer. Layered films of CdS nanorods and Co 3 O 4 nanoparticles are first used to generate high photocurrents electrochemically as opposed to CdS or Co 3 O 4 alone. Dispersed clusters of CdS nanorods conjugated with Co 3 O 4 nanoparticles are next shown to efficiently oxidize water and reduce methylene blue in solution.