Open AccessSynthesis of mesoporous silica with ordered nanostructural morphology from natural quartz sand
Author(s) -
Т. Ф. Кузнецова,
В. Е. Агабеков,
Andrei Ivanets,
Е. В. Карпинчик,
Ю. Д. Саука
Publication year - 2020
Publication title -
doklady nacionalʹnoj akademii nauk belarusi
Language(s) - English
Resource type - Journals
eISSN - 2524-2431
pISSN - 1561-8323
DOI - 10.29235/1561-8323-2020-64-5-544-550
Subject(s) - mesoporous material , materials science , quartz , morphology (biology) , scanning electron microscope , chemical engineering , porosity , amorphous solid , mesoporous silica , molecular sieve , desorption , mineralogy , specific surface area , adsorption , volume (thermodynamics) , composite material , crystallography , chemistry , geology , organic chemistry , paleontology , quantum mechanics , engineering , catalysis , physics
Silica with ordered nanostructured morphology characteristic of mesoporous molecular sieves with cubic packing of cylindrical pores and a three-dimensional porous structure is obtained from natural quartz sand. It was shown by X-ray diffraction, scanning electron microscopy, and low-temperature nitrogen adsorption-desorption that the obtained silica material is thermally stable, amorphous, consists of submicron grains, has a high specific surface area of 1396 m 2 /g, a pore volume of 0.780 cm 3 /g and an average diameter of 2.2 nm with a narrow size distribution of mesopores.