摘要：Diatomic cerium and carbon doped boron nitride (Ce@C-BN) materials derived from Ce-based metal-organic frameworks (Ce-MOFs) and boron nitride precursors were synthesized by direct single-step pyrolysis strategy. In such a strategy, Ce-MOFs not only provide a Lewis acid Ce species but also act as a carbon source to introduce more active sites. The physicochemical characteristics of resulting Ce@C-BN materials were characterized. The as-synthesized Ce@C-BN materials had a high specific surface area from microporous and mesoporous structures, and an electron transfer that enhanced the Lewis acid-base interaction between Ce and BN. The Ce@C-BN adsorbent showed a high dibenzothiophene (DBT) adsorptive capacity of 48.0 mg S/g and excellent adsorptive performance for both 4-methyldibenzothiophene (4-MDBT) and 4,6-dimethyldibenzothiophene (4,6DMDBT). The adsorption of DBT onto Ce@C-BN followed the pseudo-second-order kinetic and Freundlich isotherm models. The improved performance of Ce@C-BN in the adsorptive desulfurization is attributed to the enhanced Lewis acid-base interaction, increased chemisorption sites via valency forces, S-Ce, and pi-pi interactions. Therefore, this preparation strategy of Ce@C-BN provides a novel and promising route for the development of high-performance adsorbents.

关键字：Adsorptive desulfurization; Carbon doping; Ce doping; Boron nitride

ISSN号：0169-4332

卷、期、页：卷: 590

发表日期：2022-07-15

影响因子：6.707000

期刊分区（SCI为中科院分区）：二区

收录情况：SCIE（科学引文索引网络版）,EI（工程索引）

发表期刊名称：APPLIED SURFACE SCIENCE

参与作者：Luo, Jing,Yan, Ming,Ji, Haiyan,Mu, Liping,Huang, Yan,Zhu, Linhua,Zou, Yiru,Wang, Chao,Wu, Peiwen

第一作者：巢艳红,朱文帅

论文类型：期刊论文

论文概要：Luo, Jing,Yan, Ming,Ji, Haiyan,Mu, Liping,Huang, Yan,Zhu, Linhua,Zou, Yiru,Wang, Chao,Wu, Peiwen,巢艳红,朱文帅，Three-dimensional Ce-MOFs-derived Ce@C-BN nanobundles for adsorptive desulfurization，APPLIED SURFACE SCIENCE，2022，卷: 590

论文题目：Three-dimensional Ce-MOFs-derived Ce@C-BN nanobundles for adsorptive desulfurization