Synthesis, structure and adsorption studies of a nickel coordination polymer with selective removal on methyl orange

A nickel coordination polymer with selective adsorption on methyl orange (MO) has been prepared from 5-(1H-benzoimidazol-2-ylsulfanylmethyl)-isophthalic acid and NiCl2 in the presence of 4,4-bis(1-imidazolyl)bibenzene. The kinetic of the adsorption was also investigated. [Display omitted] •A new nic...

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Bibliographic Details
Published in:Inorganica Chimica Acta 2018-05, Vol.476, p.1-6
Main Authors: Yin, Wen-Yu, Bian, Tong-Tong, Geng, Juan, Hu, Yao-Hui, Yan, Shu-Qin, Tang, Xiao-Yan, Cheng, Hong-Jian, Ma, Yun-Sheng, Yuan, Rong-Xin
Format: Article
Language:English
Subjects:
Adsorption
Chemical compounds
Chemical synthesis
Coordination polymers
Diffraction
Dyes
Infrared spectroscopy
Methylene blue
Nickel
Polymers
Single crystals
X ray powder diffraction
X-ray diffraction
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Summary:A nickel coordination polymer with selective adsorption on methyl orange (MO) has been prepared from 5-(1H-benzoimidazol-2-ylsulfanylmethyl)-isophthalic acid and NiCl2 in the presence of 4,4-bis(1-imidazolyl)bibenzene. The kinetic of the adsorption was also investigated. [Display omitted] •A new nickel coordination polymer which shows a 2D network was synthesized.•The layer framework exhibits selective adsorption on organic dye.•The adsorption process was fitted well with the pseudo-second-order kinetic model. A new coordination network based on 5-(1H-benzoimidazol-2-ylsulfanylmethyl)-isophthalic acid (H2bismip) along with 4,4-bis(1-imidazolyl)bibenzene (bimb), formulated as [Ni2(bismip)2(bimb)2(H2O)]n (1) has been synthesized under solvothermal condition. Compound 1 has been structurally characterized by elemental analysis, IR spectroscopy, powder X-ray diffraction (PXRD). Single crystal X-ray diffraction analysis shows compound 1 is a 2D network with a Schläfli symbol of 44. The layer framework exhibits effective adsorption on organic dye. The kinetic of the adsorption process was analyzed by the pseudo-first-order and pseudo-second-order model equations and the data was fitted well with the pseudo-second-order kinetic model (R > 0.99). The compound was found to be an excellent selective absorbent for the removal of methyl orange (MO) from the mixture solution of methyl orange - methylene blue (MO-MB).
ISSN:0020-1693
1873-3255
DOI:10.1016/j.ica.2018.01.025