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One‐pot Synthesis of Novel Composite@Composite‐Typed Core@Shell Nanostructures and the Adsorption Property for Dye Wastewater
Author(s) -
Yang Liming,
Teng Yiran,
Teng Fei
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201700446
Subject(s) - adsorption , composite number , rhodamine b , materials science , nanostructure , shell (structure) , methyl orange , chemical engineering , ion exchange , hydrothermal circulation , ion , nanotechnology , composite material , chemistry , organic chemistry , catalysis , photocatalysis , engineering
In this work, the novel composite@composite‐type core@shell nanostructures, i.e . Na 0.5 Ce 0.5 MoO 4 ‐MoS 2 @Na 0.5 Ce 0.5 MoO 4 ‐MoS 2 , have been synthesized via one‐pot hydrothermal method. The core and shell are both composed of Na 0.5 Ce 0.5 MoO 4 ‐MoS 2 but with different mass ratios of Na 0.5 Ce 0.5 MoO 4 to MoS 2 , which are obviously different from the commonly reported core@shell nanostructures with the single‐component core and the single‐component shell. Besides, it is found that for single dye solution, 20 wt% core@shell sample has an significantly improved adsorption capability for rhodamine B (RhB), but a poor adsorption capability for methyl orange (MO) dye. In RhB‐MO mixture solution, the adsorption of RhB has been greatly promoted by MO. In addition, Cr(VI) ion has significantly decreased the adsorption capacity of RhB; meanwhile, K(I) ion can slightly promote MO adsorption. This work provides a simple preparation approach to the new composite‐type core@shell nanostructures, and can help us to understand the adsorption processes for practical wastewaters.