Sustainable nanocomposites of epoxy and silica xerogel synthesized from corn stalk ash: Enhanced thermal and acoustic insulation performance

Effect of Aging Solvents on Physicochemical and Thermal Properties of Silica Xerogels Derived from Steel Slag

“…In our previous study, corn stalk ash was used as silica precursor. With usage of isopropanol as aging solvent, bulk density of silica xerogel was determined as 0.048 g cm −3 …”

Silica Mesoporous Structures: Effective Nanocarriers in Drug Delivery and Nanocatalysts

“…These properties are determined by their shape [2], size [3], and composition. Compared to uniform particles of the same size, porous nanomaterials have unique properties due to their vacant spaces, including low densities [4][5][6][7], large active surfaces [8][9][10], low refractive coefficients [11][12][13][14], desirable permeabilities [15][16][17], good selectivity [18][19][20], and thermal and acoustic resistances [21][22][23]. The above-mentioned characteristics of porous nanostructures have resulted in the presentation of diverse nanoporous materials, which have attracted the attention of scientists in a variety of fields.…”

“…The ratio of free-space pores to the total volume of a material is defined as porosity [24,25], which in this category, a pore connected to the free surface of substance is called an open cell [26], and materials with open cells are suitable for use in, e.g., filtration [27], membranes [28], separation [28], and chemical operations, playing roles as catalysts [28] and in chromatography [29]. A pore that is far away from the free surface of a composition is called a closed-cell [30], and these closed cells, while they increase the thermal and acoustic resistance of these materials, as well as reduce their weights, do not contribute to any chemical applications [21][22][23]31]. Pores come in a variety of shapes and can be spherical [30], cylindrical [32], grooves [33], and hexagonal [34].…”

A novel silica xerogel synthesized from volcanic tuff as an adsorbent for high‐efficient removal of methylene blue: parameter optimization using Taguchi experimental design

“…To overcome these problems, the synthesis of silica xerogels has been promoted for large production at ambient pressure drying . Furthermore, low cost silica precursors such as fly ash, kaolin, oil shale ash, rice hull ash, bagasse ash, corn stalk, wheat starch and cellulose have been preferred instead of the expensive alkoxides, nowadays.…”