文献类型：期刊文献

英文题名：Efficient removal of H2S with zinc oxide/nitrogen-doped ordered mesoporous carbons at room temperature

作者：Chen, Youlin[1];Ma, Cheng[1];Wu, Yue[3];Ke, Chengyu[1];Liu, Xiaojun[1];Wang, Jitong[1,2];Qiao, Wenming[1];Ling, Licheng[1,2]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Key Lab Specially Funct Polymer Mat & Related Tec, Shanghai 200237, Peoples R China;[3]Shanxi Xinhua Chem Def Equipment Res Inst Ltd Co, Taiyuan, Peoples R China

年份：2022

卷号：333

外文期刊名：MICROPOROUS AND MESOPOROUS MATERIALS

收录：;EI(收录号：20220811703089);WOS:【SCI-EXPANDED(收录号:WOS:000761912300005)】；

基金：This work was partly supported by the National Natural Science Foundation of China (No. 22178116, 21978097) , Shanghai Pujiang Program (21PJD019) and the Fundamental Research Funds for the Central Universities (222201817001, 50321041918013, 50321042017001) .

语种：英文

外文关键词：H2S removal; Ordered mesoporous carbon; Nitrogen doping; ZnO

摘要：Nitrogen-doped ordered mesoporous carbon (NMC) was prepared via an organic-inorganic co-assembly method to support ZnO for the efficient removal of H2S at room temperature. NMCs with large BET specific surface areas, copious ordered mesopores, and controllable nitrogen doping worked cooperatively with uniformly dispersed ZnO, to improve desulfurization capability at room temperature. Among these, NMC-2 possessed a BET surface area as high as 1172 m(2)/g, a large pore volume of 1.09 cm(3)/g, and a conducive nitrogen content. The appropriate residual ordered mesopores after ZnO loading provided a fast-H2S-diffusion channel in NMC-2-20%, an accessible interfacial area (925 m(2)/g), and a sufficient space for product storage (0.9 cm(3)/g). The introduction of nitrogen as Lewis basic sites not only promoted the dissociation of H2S but also accelerated the lattice diffusion rate during the desulfurization process. The synergy of the above advantages resulted in an excellent desulfurization performance of 151.2 mg/g. This study presents the effective application of NMC as a support for ZnO for a fine desulfurization at room temperature.