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Facile Fabrication of Lilium Pollen-like Organosilica Particles.
Langmuir ( IF 3.7 ) Pub Date : 2020-01-09 , DOI: 10.1021/acs.langmuir.9b02627 Huayu Yang 1 , Xin Lu 1 , Zhong Xin 1
Langmuir ( IF 3.7 ) Pub Date : 2020-01-09 , DOI: 10.1021/acs.langmuir.9b02627 Huayu Yang 1 , Xin Lu 1 , Zhong Xin 1
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Organosilica particles with a novel lilium pollen-like morphology were synthesized by a one-step sol-gel method. The hydrolysis and co-condensation of vinyltrimethoxysilane (VTMS) and tetraethoxysilane (TEOS) took place in an aqueous medium with ammonia as the catalyst. The growth process of the organosilica particles was tracked by scanning electron microscopy (SEM). The bulk and surface composition of the lilium pollen-like organosilica particles were characterized by solid-state 29Si nuclear magnetic resonance (NMR) spectroscopy and X-ray photoelectron spectroscopy (XPS), respectively. In addition, bowl-like, golf ball-like, and walnut kernel-like organosilica particles could also be obtained by changing the concentration of ammonia, the amount of silane precursors, or the reaction medium. This study provides a facile method to prepare nonspherical organosilica particles with controllable morphologies.
中文翻译：
百合花粉状有机硅颗粒的简便制备。
通过一步溶胶-凝胶法合成了具有新颖的百合花粉状形态的有机硅颗粒。乙烯基三甲氧基硅烷（VTMS）和四乙氧基硅烷（TEOS）的水解和共缩合是在以氨为催化剂的水性介质中进行的。通过扫描电子显微镜（SEM）跟踪有机二氧化硅颗粒的生长过程。分别通过固态29Si核磁共振（NMR）光谱和X射线光电子能谱（XPS）表征了花粉状有机二氧化硅颗粒的体积和表面组成。另外，通过改变氨的浓度，硅烷前体的量或反应介质，也可以得到碗状，高尔夫球状和核桃仁状的有机二氧化硅粒子。
更新日期：2020-01-09
中文翻译：
百合花粉状有机硅颗粒的简便制备。
通过一步溶胶-凝胶法合成了具有新颖的百合花粉状形态的有机硅颗粒。乙烯基三甲氧基硅烷（VTMS）和四乙氧基硅烷（TEOS）的水解和共缩合是在以氨为催化剂的水性介质中进行的。通过扫描电子显微镜（SEM）跟踪有机二氧化硅颗粒的生长过程。分别通过固态29Si核磁共振（NMR）光谱和X射线光电子能谱（XPS）表征了花粉状有机二氧化硅颗粒的体积和表面组成。另外，通过改变氨的浓度，硅烷前体的量或反应介质，也可以得到碗状，高尔夫球状和核桃仁状的有机二氧化硅粒子。
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