Microporous Silica Based Membranes for Desalination

Microporous Silica Based Membranes for Desalination

This review provides a global overview of microporous silica based membranes for desalination via pervaporation with a focus on membrane synthesis and processing, transport mechanisms and current state of the art membrane performance. Most importantly, the recent development and novel concepts for improving the hydro-stability and separating performance of silica membranes for desalination are ...

Sol–Gel Synthesis and Characterization of Microporous Silica Membranes

It has been reported in the literature that the composition Unsupported silica membranes were prepared by acid-catalyzed of the synthesis solution influences the structure of the spehydrolysis and condensation of tetraethylorthosilicate. The possicies in the sol (3) and, hence, the final structure of the bility of tailoring the pore size and porosity of microporous silica membrane. This possibi...

Performance and Long Term Stability of Mesoporous Silica Membranes for Desalination

This work shows the preparation of silica membranes by a two-step sol-gel method using tetraethyl orthosilicate in ethanolic solution by employing nitric acid and ammonia as co-catalysts. The sols prepared in pH 6 resulted in the lowest concentration of silanol (Si-OH) species to improve hydrostability and the optimized conditions for film coating. The membrane was tested to desalinate 0.3-15 w...

Electrospun membranes: Next generation membranes for desalination and water/wastewater treatment

Hydrophobic Ceramic Membranes for Water Desalination

Hydrophilic ceramic membranes (tubular and planar) made of TiO2 and Al2O3 were efficiently modified with non-fluorinated hydrophobic grafting molecules. As a result of condensation reaction between hydroxyl groups on the membrane and reactive groups of modifiers, the hydrophobic surfaces were obtained. Ceramic materials were chemically modified using three various non-fluorinated grafting agent...