Porous Hybrid Nanoflower Self-Assembled from Polyoxometalate and Polyionene for Efficient Oxidative Desulfurization

Luhong ZhangShanshan SongNa Yang*Xiaowei TantaiXiaoming XiaoBin JiangYongli Sun

Cite this: Ind. Eng. Chem. Res. 2019, 58, 9, 3618–3629

Publication Date: February 12, 2019.

Abstract

A novel and precise ionic self-assembly (ISA) construction strategy for the self-assembly of polymeric quaternary ammonium salts (polyionene) and Anderson-type polyoxometalate (β-Mo8O264–) to form a three-dimensional nanoflower structure was developed successfully and used for oxidative desulfurization (ODS) of fuels for the first time. Furthermore, the morphologies of the self-assembled structures could be precisely regulated by varying the reaction conditions, including the concentrations of the polyionene and temperature. Additionally, nitrogen sorption analysis indicated the porosity with a surface area up to 140 m2 g–1. Remarkably, the nanoflowers showed excellent conversion (98.9%) toward the ODS process with six times of recycling. This could be ascribed to the large amount of active sites dispersed over the relatively high specific area, providing contact with reactants in the ODS process. This facile and innovative fabrication method shed new light on the versatile design and construction of nanostructures.

Graphical abstract


原文链接:https://pubs.acs.org/doi/10.1021/acs.iecr.8b05905

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