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在旋转结晶条件下合成纳米级TS-1沸石可抑制锐钛矿的形成。

The synthesis of nano-sized TS-1 zeolites under rotational crystallisation conditions can inhibit anatase formation.

作者信息

Wei Xing, Wang Yu-Jia, Ren Tie-Qiang, Wang Hai-Yan, Wei Min

机构信息

Liaoning Key Laboratory of Petroleum & Chemical Industry, Liaoning Shihua University Fushun 113001 P. R. China

出版信息

RSC Adv. 2020 Jan 3;10(2):1015-1020. doi: 10.1039/c9ra09273k. eCollection 2020 Jan 2.

DOI:10.1039/c9ra09273k
PMID:35494455
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9047406/
Abstract

Hydrothermal synthesis is a typical method for the preparation of TS-1. In the current study, agitation was introduced during the crystallisation stage, and nano-sized TS-1 with little anatase TiO was successfully synthesised in a short time (1-8 h). Furthermore, under rotational crystallisation conditions, a series of TS-1 samples was prepared with different crystallisation times, and the products obtained were investigated as catalysts for the oxidative desulfurisation of thiophene from a model fuel. All samples were characterised utilising X-ray diffraction (XRD), scanning electron microscopy (SEM), N-adsorption, ultraviolet-visible (UV-Vis) spectroscopy and Fourier-transform infrared (FT-IR) spectroscopy techniques. It was found that under rotational crystallisation conditions, nano-sized TS-1 could be synthesised in a short time that had improved efficiency for the oxidative desulfurisation reaction of thiophene in comparison with TS-1 synthesised by static crystallisation for 24 h.

摘要

水热合成是制备TS-1的一种典型方法。在本研究中，在结晶阶段引入搅拌，在短时间内（1-8小时）成功合成了含少量锐钛矿型TiO的纳米级TS-1。此外，在旋转结晶条件下，制备了一系列具有不同结晶时间的TS-1样品，并将所得产物作为模型燃料中噻吩氧化脱硫的催化剂进行了研究。利用X射线衍射（XRD）、扫描电子显微镜（SEM）、N吸附、紫外可见（UV-Vis）光谱和傅里叶变换红外（FT-IR）光谱技术对所有样品进行了表征。结果发现，在旋转结晶条件下，与通过静态结晶24小时合成的TS-1相比，可在短时间内合成纳米级TS-1，其对噻吩氧化脱硫反应的效率有所提高。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5050/9047406/45a2deee1924/c9ra09273k-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5050/9047406/adec1b217301/c9ra09273k-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5050/9047406/09aaaac6fac9/c9ra09273k-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5050/9047406/496f822f75d9/c9ra09273k-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5050/9047406/ac1240e66a2e/c9ra09273k-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5050/9047406/c5e10d6f7e5d/c9ra09273k-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5050/9047406/45a2deee1924/c9ra09273k-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5050/9047406/adec1b217301/c9ra09273k-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5050/9047406/09aaaac6fac9/c9ra09273k-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5050/9047406/496f822f75d9/c9ra09273k-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5050/9047406/ac1240e66a2e/c9ra09273k-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5050/9047406/c5e10d6f7e5d/c9ra09273k-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5050/9047406/45a2deee1924/c9ra09273k-f6.jpg

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本文引用的文献

1
A non-chemically selective top-down approach towards the preparation of hierarchical TS-1 zeolites with improved oxidative desulfurization catalytic performance.一种用于制备具有改进的氧化脱硫催化性能的分级TS-1沸石的非化学选择性自上而下方法。
Chem Commun (Camb). 2016 Feb 28;52(17):3580-3. doi: 10.1039/c5cc10232d. Epub 2016 Feb 5.
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Synthesis of hierarchical TS-1 by caramel templating.焦糖模板法合成分级 TS-1。
Chem Commun (Camb). 2011 Mar 28;47(12):3529-31. doi: 10.1039/c0cc04560h. Epub 2011 Feb 11.
3
Hierarchical mesoporous TS-1 zeolite: a highly active and extraordinarily stable catalyst for the selective oxidation of 2,3,6-trimethylphenol.
层状中孔 TS-1 沸石：用于 2,3,6-三甲基苯酚选择性氧化的高活性和极稳定的催化剂。
Chem Commun (Camb). 2010 Jul 21;46(27):4994-6. doi: 10.1039/c0cc00499e. Epub 2010 Jun 1.
4
Synthesis, crystallization mechanism, and catalytic properties of titanium-rich TS-1 free of extraframework titanium species.无骨架钛物种的富钛TS-1的合成、晶化机理及催化性能
J Am Chem Soc. 2008 Aug 6;130(31):10150-64. doi: 10.1021/ja7100399. Epub 2008 Jul 10.