Preparation and application of two novel supramolecular polyoxmetalates with adsorption of organic contaminants in wastewater

Article type: Research Article

Authors: Yang, Wen-Hao | Pei, Ying | Du, Hao-Yu | Xiao, Shang-Hao | Wu, Xiu-Jun | You, Ze-Wei | Li, Yuan-Yuan | Wang, Xiao-Jia | Niu, Yun-Yin^{; *}

Affiliations: Green Catalysis Center, and College of Chemistry Zhengzhou University, Henan, P. R. China

Correspondence: [*] Corresponding author: Yun-Yin Niu, Green Catalysis Center, and College of Chemistry Zhengzhou University, Henan 450052, P.R. China. E-mail: [email protected].

Abstract: Two new supramolecular polyoxmetalates were synthesized from 1, 4-bis[4-nitrile-pyridine)-N-methylene]phenyldibromide (L1) and 1, 2-bis[4-nitrile-pyridine)-N-methylene]phenyldibromide (L2) and (NH4)6Mo7–O24·4H2O under hydrothermal conditions. They are named p-[C20H18N2O4][Mo8O26] 0.5·H2O (1) and o-[C20H18N2O4][Mo8O26] ċ 0.5·H2O (2) respectively. The structures have been confirmed through single-crystal X-ray diffraction analyses and further characterized by elemental analyses, IR spectra. The adsorption test of compound 1 and compound 2 in organic dyes were carried out. It was found that compound 1 had a good adsorption effect on methylene blue (MB) and rhodamine B (RhB). The adsorption effect of compound 2 on MB is stronger than that of compound 1.

Keywords: Supramolecular polyoxmetalates, adsorption, wastewater treatment, hydrothermal, hydrolysis

DOI: 10.3233/MGC-210021

Journal: Main Group Chemistry, vol. 20, no. 1, pp. 69-79, 2021