Preparation of core-shell silica particles with tunable pore size by phenylethanol as swelling agent for chromatographic separation

被引：1
作者：
Liu, Bei [1 ,2 ,4 ]
Yang, Yali [1 ,2 ]
Quan, Kaijun [1 ,2 ]
Chen, Jia [1 ,2 ,4 ]
Zhang, Haixia [3 ]
Qiu, Hongdeng [1 ,2 ,4 ]
机构：
[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, CAS Key Lab Chem Northwestern Plant Resources, Lanzhou 730000, Peoples R China
[2] Lanzhou Inst Chem Phys, Chinese Acad Sci, Key Lab Nat Med Gansu Prov, Lanzhou 730000, Peoples R China
[3] Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China
[4] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
MATERIALS LETTERS | 2024年 / 364卷
基金：
中国国家自然科学基金;
关键词：
Core; -shell; Stationary phase; Phenylethanol; Porous materials; Sol -gel preparation; MESOPOROUS SILICA; MICROSPHERES; NANOSPHERES; UREA;
D O I：
10.1016/j.matlet.2024.136343
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The core-shell particles with tunable pore size were synthesized by a bi-phase reaction successfully. By adjusting the amount of phenylethanol, fibrous shells with tunable pore sizes ranging from 4 to 19 nm could be obtained in one pot. The obtained silica microspheres were used for chromatographic separation after modification with octyltrichlorosilane and end-capping with N-(trimethoxysilylpropyl)imidazole. Better resolutions of nitroimidazoles and anilines were obtained on the end-capped stationary phase. This particle could serve as an HPLC stationary phase with good reproducibility and particular selectivity.
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页数：4
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