Herein,the fabrication of cellulose acetate(CA)silica-based nanocomposite membranes via the dry-wetphase inversion procedure for water desalination was investigated.The modified and unmodified silicananoparticles(MSNP...Herein,the fabrication of cellulose acetate(CA)silica-based nanocomposite membranes via the dry-wetphase inversion procedure for water desalination was investigated.The modified and unmodified silicananoparticles(MSNPs and SNPs)were prepared by the sol-gel technique.The effect of the SNPs andMSNPs was investigated on the CA membrane's properties and their performance for water desalination.The CA nanocomposite membranes were characterized to study their structure,hydrophilicity,andmorphology.The fabricated nanocomposite membranes showed hydrophilic surface properties.Theperformance of reverse osmosis(RO)membranes was measured using a crossflow RO unit at 10 bar(1 bar=0.1 MPa).The membrane with 10 mg of SNPs enhanced permeate water flux compared to thepristine CA membrane by 1.6 L/(m2·h).The effect of MSNPs on the nanocomposites'performance waslower than their counterpart in the case of adding SNPs.The membrane with 30 mg of MSNPs showedthe highest permeate water flux among other nanocomposite membranes with a value oAQSf 35.7 L/(m2·h)at 24 bar.展开更多
文摘Herein,the fabrication of cellulose acetate(CA)silica-based nanocomposite membranes via the dry-wetphase inversion procedure for water desalination was investigated.The modified and unmodified silicananoparticles(MSNPs and SNPs)were prepared by the sol-gel technique.The effect of the SNPs andMSNPs was investigated on the CA membrane's properties and their performance for water desalination.The CA nanocomposite membranes were characterized to study their structure,hydrophilicity,andmorphology.The fabricated nanocomposite membranes showed hydrophilic surface properties.Theperformance of reverse osmosis(RO)membranes was measured using a crossflow RO unit at 10 bar(1 bar=0.1 MPa).The membrane with 10 mg of SNPs enhanced permeate water flux compared to thepristine CA membrane by 1.6 L/(m2·h).The effect of MSNPs on the nanocomposites'performance waslower than their counterpart in the case of adding SNPs.The membrane with 30 mg of MSNPs showedthe highest permeate water flux among other nanocomposite membranes with a value oAQSf 35.7 L/(m2·h)at 24 bar.
