Facile Synthesis of Boron Organic Polymers for Efficient Removal and Separation of Methylene Blue, Rhodamine B, and Rhodamine 6G

Autor: Changjun Xiang, Xue Zhao, Haibo Zhang, Dan Wang, Xiaohai Zhou, Fulin Zhang, Luchang Liu
Rok vydání: 2018
Předmět:
Zdroj: ACS Sustainable Chemistry & Engineering. 6:16777-16787
ISSN: 2168-0485
DOI: 10.1021/acssuschemeng.8b04049
Popis: Dodecahydro-closo-dodecaborate anion (B12H122–) organic polymers (BOPs) were facilely obtained from aqueous solution via a simple and effective method. Single crystal X-ray diffraction results insinuated that the BOPs were formed by intermolecular forces between 4,4′-bipyridine and B12H122–. The presence of B12H122– gave the BOPs a certain degree of electronegativity, which possessed excellent stability and high adsorption capacity toward the cationic dyes methylene blue (MB), rhodamine B (RB), and rhodamine 6G (RB6G). The adsorption capacity of BOPs for MB, RB, and RB 6G dyes reached 3250 mg·g–1, 1388 mg·g–1, and 2033 mg·g–1, respectively. Through adsorption kinetics and adsorption isotherm results, BOPs exhibited rapid kinetic adsorption and ultrahigh adsorption capacity. Moreover, the BOPs materials could separate MB/MO, MB/RB, MB/RB6G, RB/MO, and RB6G/MO mixed components efficiently by adjusting the pH of the dye solution. It was worth mentioning that BOPs adsorbents could be easily and rapidly regene...
Databáze: OpenAIRE