Synthesis of spherical SBA-15 by poly (vinyl alcohol)/ Hydroxyl-terminated polybutadiene supermicelles as co-surfactant and its application for removal of diazinon from aqueous solution

Effect of Poly(vinyl alcohol) Concentration on the Micro/Mesopore Structure of SBA15 Silica

“…The pore diameter, which can be evaluated using the calculated value, ranged from 2.0 to 50 nm. 5 Calculated using the a O -BJH pore size (a O = 2d 100 / √ 3).…”

“…Nanoporous silica with a 2-50 nanometers pore diameter is a porous material that consists of regularly arranged pores [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. It has been prevalently employed in catalyst supports, drug delivery carriers, adsorbents, sensors, and fuel cells, owing to its high specific surface area, uniform pore structure, narrow pore size distribution, and potential ability to inhibit active particle growth and aggregation in its pores [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. In addition, porous materials such as zeolite and MOFs have been researched, and mesoporous silica has many advantages which enable it to be used in various applications, such as high diffusivity using relatively large mesopores and high thermal/chemical stability .…”

“…Several types of mesoporous materials (e.g., SBA, MCM, KIT, etc.) have been manufactured by modifying the synthesis pathway and surfactants [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]20,21]. Due to its thick pore wall and relatively high hydrothermal stability, SBA15 has received the most attention among these mesoporous materials, and various techniques have also been used to further increase its hydrothermal stability [1][2][3][4][5].…”

“…The characteristics relevant to the aforementioned applications are the pore geometry, diameter, size distribution, volume, and BET surface area. Numerous research groups have tailored the pore structure of mesoporous materials to optimize their properties [1,[5][6][7][8][9][10][11][13][14][15]17,[24][25][26][27][28]. To enhance the applicability of these materials, it is necessary to increase their pore volume and BET surface area.…”