Open AccessSynthesis of double‐shelled hollow silica sphere with single‐shelled hollow silica sphere and cetyltrimethyl ammonium bromide as dual templates
Author(s) -
Zhou Gaoxin,
Zhang Zhilong,
Chen Bo,
Wang Ying,
Ding Yu,
Zhang Xiaolu,
Ji Min
Publication year - 2017
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2016.0415
Subject(s) - ammonium bromide , template , materials science , dual (grammatical number) , chemical engineering , nanotechnology , pulmonary surfactant , engineering , art , literature
In this work, single‐shelled hollow mesoporous silica nanoparticles (SHMSNs) were first fabricated via template method and surface‐protected etching strategy with the aid of cetyltrimethyl ammonium bromide (CTAB). Then, double‐shelled hollow mesoporous silica nanoparticles (DHMSNs) were successfully synthesised based on single‐shelled hollow mesoporous silica. The etching procedure using sodium carbonate as etchant, the surface‐protected etching time and the influence of CTAB were discussed in detail. Experimental results showed that a warm and effective etching process could be achieved at 39°C for 3 h with CTAB protection. The resulting SHMSNs and DHMSNs were characterised by transmission electron microscope, scanning electron microscope, and nitrogen adsorption–desorption isotherms. In addition, it was proved that SHMSNs and DHMSNs possessed a well‐defined hollow structure and uniform size. It is believed that the nanostructure feature some implication for creating other hollow structures.