Preparation of 6-(4'-Nicotinamido) phenyl-3-(3'-pyridinyl) pyridazino [3,2-c]1,2,4-triazole and Its Adsorption Performance for Mercury(Ⅱ) Ions

doi:10.11944/j.issn.1000-0518.2016.11.160069

Chinese Journal of Applied Chemistry ›› 2016, Vol. 33 ›› Issue (11): 1322-1328.DOI: 10.11944/j.issn.1000-0518.2016.11.160069

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Preparation of 6-(4'-Nicotinamido) phenyl-3-(3'-pyridinyl) pyridazino [3,2-c]1,2,4-triazole and Its Adsorption Performance for Mercury(Ⅱ) Ions

CHEN Dun^a^b,MA Yali^a^b,Tunsagnl Awut^a,Ismayil Nurulla^a^*()

^aKey Laboratory of Functional Polymer Materials,School of Chemistry and Chemical Engineering,Urumqi 830046,China
^bXinjiang Education Institute,Urumqi 830043,China

Received:2016-02-23 Accepted:2016-06-13 Published:2016-11-01 Online:2016-11-01
Contact: Ismayil Nurulla
Supported by:
Supported by the National Natural Science Foundation of China(No.21164011)

Abstract

Abstract:

6-(4'-Nicotinamido)phenyl-3-(3'-pyridinyl)pyridazino[3,2-c]1,2,4-triazole(K₂) was prepared by 3-(4-bromophenyl)-6-chloropyridazine and nicotinic hydrazide, and characterized by infrared spectroscopy, ¹H- and ¹³C- nuclear magnetic resonance spectroscopy. The adsorptive properties and the selectivity of compound K₂ for the separation of Hg²⁺ were investigated. The results indicate that the maximum adsorption capacity is 46.50 mg/g. The adsorption capacity reaches equilibrium within 20 min at pH 6.0~8.0. Using 0.50 mol/L HCl and 1.00 mol/L thiourea as desorption solvent, the desorption rate is more than 97%. The selective factor(α) values of Hg(Ⅱ) for Cd(Ⅱ), Co(Ⅱ), Ni(Ⅱ), Zn(Ⅱ) and Mn(Ⅱ) are 5.67, 6.70, 10.20, 8.90 and 9.21, respectively. These indicate that compound K₂ has excellent adsorption and selective properties. The experimental data follow the Langmuir adsorption model and a pseudo-second-order model.

Key words: mercury(Ⅱ), adsorption material, adsorption property, conjugated structure

CHEN Dun, MA Yali, Tunsagnl Awut, Ismayil Nurulla. Preparation of 6-(4'-Nicotinamido) phenyl-3-(3'-pyridinyl) pyridazino [3,2-c]1,2,4-triazole and Its Adsorption Performance for Mercury(Ⅱ) Ions[J]. Chinese Journal of Applied Chemistry, 2016, 33(11): 1322-1328.

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Preparation of 6-(4'-Nicotinamido) phenyl-3-(3'-pyridinyl) pyridazino [3,2-c]1,2,4-triazole and Its Adsorption Performance for Mercury(Ⅱ) Ions

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