Open AccessLow-temperature synthesis of mesoporous M41S metal-silicates and their adsorption and capillary-condensation properties
Author(s) -
Т. Ф. Кузнецова,
Andrei Ivanets,
В. С. Комаров
Publication year - 2019
Publication title -
vescì nacyânalʹnaj akadèmìì navuk belarusì. seryâ hìmìčnyh navuk
Language(s) - English
Resource type - Journals
eISSN - 2524-2342
pISSN - 1561-8331
DOI - 10.29235/1561-8331-2019-55-3-338-344
Subject(s) - capillary condensation , mesoporous material , adsorption , sorption , materials science , zirconium , desorption , atmospheric temperature range , metal , condensation , vanadium , inorganic chemistry , silicate , isothermal process , chemical engineering , chemistry , thermodynamics , organic chemistry , metallurgy , catalysis , physics , engineering
Low-temperature synthesis of the mesoporous silicates containing d-metals is carried out. The measured isotherms of low-temperature nitrogen adsorption-desorption by chrome, vanadium and zirconium silicate adsorbents belong to Type IV (b) of sorption isotherms on IUPAC classification. Such isothermal curves are inherent in mesoporous systems with the M41S type of ordering of the making elements. Increasing рН of sedimentation and metal content lead to amorphization of samples and distortion of a supramolecular lattice with uniform regular geometry and a long-range ordering.