Synthesis of a phosphomolybdic acid/nanocrystalline titanium silicalite-1 catalyst in the presence of hydrogen peroxide for effective adsorption-oxidative desulfurization
文献类型：期刊论文
| 作者 | Wang, Siyue2; Tong, Huan2; Li, Haonan2; Shi, Xin2; Liu, Di2; Li, Jinhong2; Guo, Kaixuan2; Zhao, Liu2; Song, Shengjie2; Chen, Lidong2 |
| 刊名 | New Journal of Chemistry
 |
| 出版日期 | 2022-02-07 |
| 卷号 | 46期号:5页码:2559-2568 |
| ISSN号 | 11440546 |
| 关键词 | Scanning electron microscopy - Microporosity - Zeolites - High resolution transmission electron microscopy - X ray diffraction - Catalytic oxidation - Fourier transform infrared spectroscopy - Catalyst activity - Hydrogen peroxide - Mesoporous materials - Nuclear magnetic resonance spectroscopy - Catalyst supports - Catalyst selectivity - Nanocatalysts - Nanocrystals |
| DOI | 10.1039/d1nj04652g |
| 英文摘要 | Phosphomolybdic acid (HPMo) supported on microporous nanocrystalline titanium silicalite-1 zeolite (Nano-TS-1) catalysts were prepared in the absence or presence of hydrogen peroxide via the impregnation method. The catalysts were characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), UV-visible diffuse reflectance spectroscopy (UV-vis), N2 adsorption-desorption, 31P and 29Si magic angle spinning nuclear magnetic resonance (MAS-NMR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results of FT-IR, UV-vis and 31P MAS-NMR characterization confirm that the Keggin framework structure of the HPMo catalyst supported by the Nano-TS-1 is maintained, and a small amount of peroxomolybdatephosphate species is generated after the introduction of H2O2. The results of the kinetics research experiments show that the adsorption desulfurization activity of various aromatic sulfur-containing compounds over Nano-TS-1 and supported HPMo catalysts decreases in the order thiophene (TH) > benzothiophene (BT) > dibenzothiophene (DBT). Besides, the time to reach adsorption saturation is extended in turn, which is the result of their diffusion effect in microporous zeolites. The catalysts exhibit high catalytic activity in the oxidation of DBT and TH under mild conditions. Under selected conditions, i.e. m(oil)/m(catalyst) = 8.0 g/0.15 g, moL(O/S) = 10, V(model oil/ethanol) = 10.0 mL/10.0 mL, the desulfurization rates of TH and DBT are 99.8% and 58.6%, respectively. The results show that the supported HPMo or HPMo-H2O2 catalysts exhibit oxidative desulfurization efficiency in the order TH > DBT > BT, which may be attributed to the combined effect of the electron cloud density on the sulfur atoms, the pseudo liquid phase of HPMo and shape selectivity over Nano-TS-1. This journal is 漏 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique. |
| 学科主题 | Adsorption |
| 项目编号 | Research support from the Service Local Project of the Education Department of Liaoning Province (No. LF2019002), the Research project on Undergraduate Teaching Reform of general higher education in Liaoning Province (No. 254 liaojiaoban[2021]), the Undergraduate Training Programs for Innovation and Entrepreneurship of Liaoning Province (No. S20191016522, and 202010165017) and the &lsquo ; &lsquo ; Transformational Technologies for Clean Energy and Demonstration&rsquo ; &rsquo ; , Strategic Priority Research Program of the Chinese Academy of Sciences, (Grant No. XDA 21030500) is acknowledged. |
| 出版者 | Royal Society of Chemistry |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/61246]  |
| 作者单位 | 1.School of Chemical Engineering, Dalian University of Technology, Dalian; 116024, China 2.Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian; 110629, China 3.Beijing Key Laboratory of Ionic Liquids Clean Process, Key Laboratory of Green Process and Engineering, Chinese Academy of Sciences, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China |
| 推荐引用方式 GB/T 7714 | Wang, Siyue,Tong, Huan,Li, Haonan,et al. Synthesis of a phosphomolybdic acid/nanocrystalline titanium silicalite-1 catalyst in the presence of hydrogen peroxide for effective adsorption-oxidative desulfurization[J]. New Journal of Chemistry,2022,46(5):2559-2568. |
| APA | Wang, Siyue.,Tong, Huan.,Li, Haonan.,Shi, Xin.,Liu, Di.,...&Wang, Xiangsheng.(2022).Synthesis of a phosphomolybdic acid/nanocrystalline titanium silicalite-1 catalyst in the presence of hydrogen peroxide for effective adsorption-oxidative desulfurization.New Journal of Chemistry,46(5),2559-2568. |
| MLA | Wang, Siyue,et al."Synthesis of a phosphomolybdic acid/nanocrystalline titanium silicalite-1 catalyst in the presence of hydrogen peroxide for effective adsorption-oxidative desulfurization".New Journal of Chemistry 46.5(2022):2559-2568. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。