A new nanohybrid material constructed from Keggin-type polyoxometalate and Cd(II) semicarbazone Schiff base complex with excellent adsorption properties for the removal of cationic dye pollutants

A novel nanohybrid material containing a Cd(II) semicarbazone Schiff base complex and phosphomolybdic acid, [Cd(H2L+)6][H2L]+4[PMo12O40]4·18CH3OH·4H2O (1), [HL = pyridine-2-carbaldehyde semicarbazone] was prepared by a simple sonochemical route and characterized by 1HNMR, 13CNMR, FT-IR, UV–vis, PXRD...

Full description

Saved in:
Bibliographic Details
Published in:Journal of molecular structure 2017-02, Vol.1130, p.592-602
Main Authors: Farhadi, Saeed, Amini, Mostafa M., Dusek, Michal, Kucerakova, Monika, Mahmoudi, Farzaneh
Format: Article
Language:English
Subjects:
Adsorption activity
Cationic dye pollutants
Nanohybrid material
Polyoxometalate
Single crystal
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A novel nanohybrid material containing a Cd(II) semicarbazone Schiff base complex and phosphomolybdic acid, [Cd(H2L+)6][H2L]+4[PMo12O40]4·18CH3OH·4H2O (1), [HL = pyridine-2-carbaldehyde semicarbazone] was prepared by a simple sonochemical route and characterized by 1HNMR, 13CNMR, FT-IR, UV–vis, PXRD, FESEM, TG-DTA and BET-BJH surface area analysis. Also the single crystal 1, was characterized by single-crystal X-ray diffraction analysis. It crystallizes in the triclinic system with space group P-1 and is assembled into 3D supramolecular structure via hydrogen intermolecular interactions. The nanohybrid 1 was tested for the adsorption and removal of organic dyes such as methylene blue (MB), Rhodamine B (RhB) and methyl orange (MO) from aqueous solutions. The effects of parameters such as the dosage of adsorbent, the initial concentration and pH of dye solution were investigated on the removal efficiency of methylene blue. The nanohybrid 1 exhibited excellent adsorption ability towards cationic dyes. Moreover, it could be easily separated from the reaction solution and recycled up to three times without significant loss of adsorption activity. [Display omitted] •A new nanohybrid containing Cd(II) semicarbazone and PMo12O403− was synthesized.•This nanohybrid revealed a 3D supramolecular structure via hydrogen interactions.•This nanohybrid was tested as an adsorbent for the removal of dye pollutants.•The results showed that the nanohybrid is an excellent adsorbent for cationic dyes.•The nanohybrid can be easily separated and reused without the loss of ability.
ISSN:0022-2860
1872-8014
DOI:10.1016/j.molstruc.2016.10.081