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Jing Guo,Arcadio Sotto,Antonio Martín,김정환 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.45 No.-
Functionalized SBA-15 mesoporous materials were newly developed and embedded as inorganicadditive into polyethersulfone (PES) membrane. Doping the SBA-15 mesoporous materials improvedmembrane permeability without significant change in morphological structure of PES membrane. However, low dosage of SBA-15 of 0.3 wt.% increased fouling rate of PES membrane with BSA compound. The fouling potential in PES membrane was reduced by increasing concentration of SBA-15 materials to0.6 wt.%. Antifouling properties of PES membrane were associated with lower BSA membrane adsorptiondue to the improvement of membrane hydrophilicity by SBA-15 addition
Humic acid fouling in a submerged photocatalytic membrane reactor with binary TiO2–ZrO2 particles
Sovann Khan,김정환,Arcadio Sotto,Bart Van der Bruggen 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.21 No.1
The binary TiO2–ZrO2 particles were better alternative to TiO2 particles as photocatalyst to reduce humicacid fouling in photocatalytic membrane reactor. The structure of the TiO2–ZrO2 particles was stronglydependent upon the content of zirconium as an additive. A composition of 50% TiO2 with 50% ZrO2 wasoptimal in terms of physicochemical properties. The effect of TiO2–ZrO2 particles on the reduction ofhumic acid fouling was further improved by the presence of divalent cations such as calcium. Nevertheless, the stability of polymeric membranes in longer-term operation using a hybridphotocatalytic membrane reactor for water treatment applications may remain a challenge.
Khan, Sovann,Kim, Jeonghwan,Sotto, Arcadio,Van der Bruggen, Bart Elsevier 2015 Journal of industrial and engineering chemistry Vol.21 No.-
<P><B>Abstract</B></P> <P>The binary TiO<SUB>2</SUB>–ZrO<SUB>2</SUB> particles were better alternative to TiO<SUB>2</SUB> particles as photocatalyst to reduce humic acid fouling in photocatalytic membrane reactor. The structure of the TiO<SUB>2</SUB>–ZrO<SUB>2</SUB> particles was strongly dependent upon the content of zirconium as an additive. A composition of 50% TiO<SUB>2</SUB> with 50% ZrO<SUB>2</SUB> was optimal in terms of physicochemical properties. The effect of TiO<SUB>2</SUB>–ZrO<SUB>2</SUB> particles on the reduction of humic acid fouling was further improved by the presence of divalent cations such as calcium. Nevertheless, the stability of polymeric membranes in longer-term operation using a hybrid photocatalytic membrane reactor for water treatment applications may remain a challenge.</P>