TY - JOUR
T1 - Facile and green synthesis of disordered mesoporous silica as biogenic filler for mixed-matrix membranes
AU - Setiawan, Wahyu Kamal
AU - Chiang, Kung Yuh
N1 - Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2023/10/1
Y1 - 2023/10/1
N2 - Disordered mesoporous silica particles (MSNs) were successfully synthesized using facile sol-gel using rice husk as a silica precursor and water-soluble polymers as structure-directing agents (SDAs) under acidic conditions of gluconic acid solutions. The influence of polyvinyl alcohol/PVA, polyvinylpyrrolidone/PVP, and soluble starch on the textural properties and morphologies were studied. Besides, the impact of MSNs with considerable properties on the CO2/N2 separation performance of poly(ether-block-amide) or Pebax membranes was also investigated. SDAs could generally double the specific surface area of the original sample up to 400–600 m2/g, except PVP/starch and PVA/PVP. In addition, PVP governed spherical shape, while its combination with PVA established excellent particle size distribution (100–200 nm). MSNs prepared using PVA/PVP were even considered to upgrade Pebax membrane's CO2/N2 separation performance. CO2 permeability and CO2/N2 selectivity were enhanced up to 58% and 21%, respectively, compared to pure Pebax membranes. This finding will be promising for encouraging sustainable filler development for membrane technology.
AB - Disordered mesoporous silica particles (MSNs) were successfully synthesized using facile sol-gel using rice husk as a silica precursor and water-soluble polymers as structure-directing agents (SDAs) under acidic conditions of gluconic acid solutions. The influence of polyvinyl alcohol/PVA, polyvinylpyrrolidone/PVP, and soluble starch on the textural properties and morphologies were studied. Besides, the impact of MSNs with considerable properties on the CO2/N2 separation performance of poly(ether-block-amide) or Pebax membranes was also investigated. SDAs could generally double the specific surface area of the original sample up to 400–600 m2/g, except PVP/starch and PVA/PVP. In addition, PVP governed spherical shape, while its combination with PVA established excellent particle size distribution (100–200 nm). MSNs prepared using PVA/PVP were even considered to upgrade Pebax membrane's CO2/N2 separation performance. CO2 permeability and CO2/N2 selectivity were enhanced up to 58% and 21%, respectively, compared to pure Pebax membranes. This finding will be promising for encouraging sustainable filler development for membrane technology.
KW - Disordered mesoporous silica
KW - Eco-friendly approach
KW - Nanoparticles
KW - Rice husk
KW - Sol-gel preparation
UR - http://www.scopus.com/inward/record.url?scp=85163524500&partnerID=8YFLogxK
U2 - 10.1016/j.matchemphys.2023.128087
DO - 10.1016/j.matchemphys.2023.128087
M3 - 期刊論文
AN - SCOPUS:85163524500
SN - 0254-0584
VL - 307
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
M1 - 128087
ER -