One-step synthesis of hybrid zeolite with exceptional hydrophobicity to accelerate the interfacial reaction at low temperature
作者： Dan Li , Zhonghan Wu , Dan Zhou , Yongde Xia , Xinhuan Lu
DOI: 10.1016/J.MICROMESO.2019.02.002
关键词: Moiety 、 Chemistry 、 Cyclohexanol 、 Zeolite 、 Dimethyldiethoxysilane 、 Solubility 、 Phenol 、 Catalysis 、 Chemical engineering 、 Catalyst support
摘要: Abstract Up to date, hydrophobic hybrid zeolites (water contact angle > 120°) unexceptionally are prepared through post synthesis methods by using long-alkyl-chain organosilanes (C8∼C16) as organic Si source. In this work, organic-inorganic zeolite with exceptional hydrophobicity (WCA of 150°) has been firstly one-step synthesized rotating dry gel conversion (rota-DGC) route in the present short-alkyl-chain (dimethyldiethoxysilane) without any structure-directing agents. Not only efficient utilization for carbon source achieved, but also crystallization rate fastened. Various analysis results and stability support incorporation Si(CH3)2 moiety into framework. Thus-synthesized acts excellent catalyst phenol hydrogenation aqueous medium at low temperature 318 K. The hydrophobic/lipophilic property plays an important role formation stable oil/water microenvironment on surface accelerate interfacial reactions, solubility difference product reactant water promoted complete high selectivity cyclohexanol.
sci-hub.se 参考文章(21)
Christopher W. Jones, Katsuyuki Tsuji, Mark E. Davis, Organic-functionalized molecular sieves as shape-selective catalysts Nature. ,vol. 393, pp. 52- 54 ,(1998) , 10.1038/29959
Dan Zhou, Xing Chu, Jun Xu, Tianjun Zhang, Xinhuan Lu, Feng Deng, Shengfu Wang, Qinghua Xia, Preparation of organic–inorganic hybrid zeolites with highly-conserved framework carbon by an improved DGC route Microporous and Mesoporous Materials. ,vol. 220, pp. 225- 230 ,(2016) , 10.1016/J.MICROMESO.2015.09.009
Dan Zhou, Jun Xu, Jiejie Deng, Xianlong Wei, Xinhuan Lu, Xing Chu, Feng Deng, Qinghua Xia, One-step DGC assembly and structural characterization of a hairy particle zeolite-like organic–inorganic hybrid as an efficient modifiable catalytic material Dalton Transactions. ,vol. 44, pp. 14732- 14740 ,(2015) , 10.1039/C5DT00027K
Katsutoshi Yamamoto, Yasuyuki Sakata, Yuki Nohara, Yoko Takahashi, Takashi Tatsumi, Organic-Inorganic Hybrid Zeolites Containing Organic Frameworks Science. ,vol. 300, pp. 470- 472 ,(2003) , 10.1126/SCIENCE.1081019
Dan Zhou, Xinhuan Lu, Jun Xu, Anan Yu, Jiyang Li, Feng Deng, Qinghua Xia, Dry Gel Conversion Method for the Synthesis of Organic–Inorganic Hybrid MOR Zeolites with Modifiable Catalytic Activities Chemistry of Materials. ,vol. 24, pp. 4160- 4165 ,(2012) , 10.1021/CM3023538
Xu Yang, Xiang Yu, Lizhen Long, Tiejun Wang, Longlong Ma, Liangpeng Wu, Yu Bai, Xinjun Li, Shijun Liao, Pt nanoparticles entrapped in titanate nanotubes (TNT) for phenol hydrogenation: the confinement effect of TNT. Chemical Communications. ,vol. 50, pp. 2794- 2796 ,(2014) , 10.1039/C3CC49331H
Xiaolong Han, Lei Wang, Jiding Li, Xia Zhan, Jian Chen, Jichu Yang, Tuning the hydrophobicity of ZSM-5 zeolites by surface silanization using alkyltrichlorosilane Applied Surface Science. ,vol. 257, pp. 9525- 9531 ,(2011) , 10.1016/J.APSUSC.2011.06.054
Yizhi Xiang, Lingniao Kong, Pengyang Xie, Tieyong Xu, Jianguo Wang, Xiaonian Li, Carbon Nanotubes and Activated Carbons Supported Catalysts for Phenol in Situ Hydrogenation: Hydrophobic/Hydrophilic Effect Industrial & Engineering Chemistry Research. ,vol. 53, pp. 2197- 2203 ,(2014) , 10.1021/IE4035253
Wenfu Yan, Edward W. Hagaman, Sheng Dai, Functionalization of aluminophosphate AlPO4-H1 (VPI-5) with phenylphosphonic acid Chemistry of Materials. ,vol. 16, pp. 5182- 5186 ,(2004) , 10.1021/CM048766B
Chaoqun Bian, Qinming Wu, Jian Zhang, Fang Chen, Shuxiang Pan, Liang Wang, Xiangju Meng, Ulrich Müller, Mathias Feyen, Bilge Yilmaz, Hermann Gies, Weiping Zhang, Xinhe Bao, Dirk De Vos, Toshiyuki Yokoi, Takashi Tatsumi, Feng-Shou Xiao, A new zeolite formed from interlayer expansion of the precursor COK-5 Microporous and Mesoporous Materials. ,vol. 214, pp. 204- 209 ,(2015) , 10.1016/J.MICROMESO.2015.04.017