Engineering Dual Oxygen Simultaneously Modified Boron Nitride for Boosting Adsorptive Desulfurization of Fuel

作     者：Jing Luo Yanchen Wei Yanhong Chao Chao Wang Hongping Li Jun Xiong Mingqing Hua Huaming Li Wenshuai Zhu Jing Luo;Yanchen Wei;Yanhong Chao;Chao Wang;Hongping Li;Jun Xiong;Mingqing Hua;Huaming Li;Wenshuai Zhu

作者机构：School of Chemistry and Chemical Engineering&Institute for Energy ResearchJiangsu UniversityZhenjiang 212013China State Key Laboratory of Heavy Oil ProcessingCollege of Chemical Engineering and EnvironmentChina University of Petroleum(Beijing)Beijing 102249China School of Materials Science and EngineeringJiangsu UniversityZhenjiang 212013China School of PharmacyJiangsu UniversityZhenjiang 212013China 

出 版 物：《Engineering》 (工程（英文）)

年 卷 期：2022年第8卷第7期

页      面：86-93页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：financially supported by the National Key Research and Development Program of China (2017YFB0306504) the National Natural Science Foundation of China (22178154, 22108105, 21722604, and 21878133) the Postdoctoral Foundation of China (2017M611726) Graduate Education Innovation Project of Government of Jiangsu Province (KYCX20_3039) 

主　　题：Polymer-based synthetic strategy Interior substitution BN Oxygen doping Adsorptive desulfurization 

摘      要：Oxygen atoms usually co-exist in the lattice of hexagonal boron nitride(h-BN). The understanding of interactions between the oxygen atoms and the adsorbate, however, is still ambiguous on improving adsorptive desulfurization performance. Herein, simultaneously oxygen atom-scale interior substitution and edge hydroxylation in BN structure were constructed via a polymer-based synthetic *** results indicated that the dual oxygen modified BN(BN–2O) exhibited an impressively increased adsorptive capacity about 12% higher than that of the edge hydroxylated BN(BN–OH) fabricated via a traditional method. The dibenzothiophene(DBT) was investigated to undergo multimolecular layer type coverage on the BN–2O uneven surface via π–π interaction, which was enhanced by the increased oxygen doping at the edges of BN–2O. The density functional theory calculations also unveiled that the oxygen atoms confined in BN interior structure could polarize the adsorbate, thereby resulting in a dipole interaction between the adsorbate and BN–2O. This effect endowed BN–2O with the ability to selectively adsorb DBT from the aromatic-rich fuel, thereafter leading to an impressive prospect for the adsorptive desulfurization performance of the fuel. The adsorptive result was in good accordance with Freundlich and pseudo-second-order adsorption kinetics model results. Therefore, the designing of a polymer-based strategy could be also extended to other heteroatom doping systems to enhance adsorptive performance.