Keggin-type polycationic AlO4Al12(OH)24(H2O)127+ intercalated MoO3 composites for methyl orange adsorption

Autor: Tian-Yi Dang, Qian Wang, Wan-Yu Zhang, Jie Wang, Shuxia Liu, Zhong Zhang, Hong-Rui Tian, Ying Lu
Rok vydání: 2022
Předmět:
Zdroj: Chinese Chemical Letters. 33:2617-2620
ISSN: 1001-8417
DOI: 10.1016/j.cclet.2021.09.079
Popis: Molybdenum trioxide (MoO3) can be employed as an excellent host for intercalation due to its 2D layered structure that connected by van der Waals interactions. Herein, a series of polyoxometalate-based MoO3 composites (Al13@MoO3) were successfully prepared by interpolating the Keggin-type polycationic AlO4Al12(OH)24(H2O)127+ (Al13) into MoO3 gallery. These composites can be applied to rapidly adsorb the anionic dye methyl orange (MO) through strong electrostatic interactions lead to compact and stable gathering in the surrounding of the numerous charged Al13. Adsorption behaviors of composites with the different amount of Al13 were determined, these results revealed that Al13-3.34%@MoO3 exhibited the most remarkable adsorption capacity. More importantly, the composite maintains superior adsorption capacity for five consecutive adsorption/desorption cycles, suggesting that Al13@MoO3 can be an efficient and durable adsorbent.
Databáze: OpenAIRE