Confining Polyoxometalate Clusters into Porous Aromatic Framework Materials for Catalytic Desulfurization of Dibenzothiophene
Peng‐Yuan Wang, Lingchang Jiang, Xiaoqin Zou, Huaqiao Tan, Panpan Zhang, Jialu Li, Baisong Liu, Guangshan Zhu
Abstract
Removal of notorious sulfur compounds to produce low-sulfur-content (≤10 ppm) diesel is necessary and vital for modern industry and environmental protection. A new type of inorganic–organic hybrid material has been designed and synthesized via confining molybdenum-containing polyoxometalate (POM) clusters within porous aromatic framework-1 (PAF-1) cavities named POM–PAF-1. Deep oxidative desulfurization experiments reveal that POM–PAF-1 possesses excellent reactivity under mild conditions, exemplified by a sulfur removal degree of 98.5% dibenzothiophene within 30 min at 30 °C. The improvement in oxidative desulfurization reactivity from traditional porous POM-based catalysts is owing to uniform POMs and lipophilic and porous PAF-1. The high performance of POM–PAF-1 in terms of excellent reactivity and good stability means it has potential in new heterogeneous catalysis.