A universal polymer-assisted route to fabricate Zr-doped TiO_(2)nanocomposite:boosting reactive desulfurization  

作　　者：Yue Du Ping Li Zhi-Yi Zhong Wen-Xue Chen Yi-Si Liu Yun-Long Xie Li-Na Zhou Kai Wang 

机构地区：[1]Hubei Key Laboratory of Photoelectric Materials and Devices,College of Material Science and Engineering,Hubei Normal University,Huangshi 435002,China [2]National Laboratory of Solid State Microstructures,Nanjing University,Nanjing 210093,China [3]College of Urban and Environmental Sciences,Huangshi Key Laboratory of Prevention and Control of Soil Pollution,Hubei Normal University,Huangshi 435002,China [4]School of Chemistry,Chemical Engineering and Biotechnology,Nanyang Technological University,Singapore 637459,Singapore

出　　处：《Tungsten》2024年第3期596-609,共14页钨科技（英文）

基　　金：supported by Hubei Provincial Natural Science Foundation and Huangshi of China(2022CFD039);the National Natural Science Foundation of China(22008058);Program for Innovative Teams of Outstanding Young and Middle-aged Researchers in the Higher Education Institutions of Hubei Province(T2021010)。

摘　　要：A series of transition metal ion-doped TiO_(2)composites were prepared by polyethyleneimine-assisted solvent-free selfassembly.Due to the similar electronegativity and ionic radius of Ti and Zr ions,the introduction of Zr element to TiO_(2)can effectively improve its surface acidity and introduce more defect sites on the TiO_(2)framework.As-fabricated Zr-doped TiO_(2)nanocomposite exhibits the formation of Zr-Ti bond,strong surface acidity,connected mesoporous channels,and relatively high crystallinity.These remarkable properties contribute to its adsorption-oxidation-desulfurization capacity toward thiophene-type sulfides,which can remove 500×^(10-6)dibenzothiophene from the model fuel within 100 min at low reaction temperatures.The polymer-induced self-assembly method can reduce organic solvent usage,pollutant emissions,and energy consumption,which provides an efficient and practical way to prepare porous metal oxide-based catalysts in future.

关 键 词：Oxidative desulfurization Transition metal ion-doped TiO_(2)nanocomposite DIBENZOTHIOPHENE Solvent-free self-assembly method 

分 类 号：TQ426[化学工程] TB33[一般工业技术—材料科学与工程]