Effect of TiO2 nanoparticles on fouling mitigation of ultrafiltration membranes for activated sludge filtration

Bae, Tae‐Hyun; Tak, Tae‐Moon

doi:10.1016/j.memsci.2004.09.008

Cited by 415 publications

(156 citation statements)

References 15 publications

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“…Incorporation of inorganic particles into membranes, related to modification of polymeric materials via improving its hydrophilic character, has been proven to successfully reduce the membrane fouling [6][7][8]. Addition of selected hydrophilic particles in the membrane matrix increases the polymer hydrophilicity and enhances the water permeability while mitigating the membrane fouling [9,10].…”

Section: G R a P H I C A L Abstract Abstract A R T I C mentioning

confidence: 99%

Enhanced ultrafiltration PES membranes doped with mesostructured functionalized silica particles

et al. 2015

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Section: G R a P H I C A L Abstract Abstract A R T I C mentioning

confidence: 99%

Enhanced ultrafiltration PES membranes doped with mesostructured functionalized silica particles

et al. 2015

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“…Another inorganic filler included in the membranes was TiO 2 with photocatalytic properties. Bae and Tak prepared polysulfone membranes by addition of TiO 2 nanoparticles to the casting solution [5]. The TiO 2 entrapped membrane showed lower flux decline compared to that of the original polymeric membrane.…”

Section: Bottino Et Al Prepared Poly(vinylidene Fluoride) (Pvdf)-siomentioning

confidence: 99%

Preparation and Characterization of Microporous Hollow Fiber Membranes Containing Hydrotalcite as an Inorganic Adsorbent

Nagashima

Yahagi

Hirose

et al. 2010

SERDJ

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Polyethersulfone (PES) hollow fiber membranes containing hydrotalcite as an adsorbent were prepared by the nonsolvent induced phase separation method. In the membrane preparation, the weight ratios of PES and hydrotalcite were varied from 3:1 to 3:2 and 3:4. It was found that an effective cavity was formed around the hydrotalcite contained in the membrane. This is because the compatibility between hydrophobic PES and hydrophilic hydrotalcite is poor. The existence of a cavity in the membrane is useful for adsorption because the effective surface area of the adsorbent included in the membrane is large. On the contrary, in the PES membrane containing activated carbon, such a cavity was not observed and the PES was in close contact with the activated carbon. Both PES and activated carbon are hydrophobic and thus high compatibility between them prevented cavity formation. The adsorption ability of phosphate on the hydrotalcite contained in the membrane was investigated. 30~40 % of the original adsorption ability of the hydrotalcite particle was retained.

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“…Therefore, membrane fouling can be prevented by incorporating TiO2 nanoparticles over polymeric membrane surface. In fact, titanium dioxide (TiO2) has been extensively utilized in recent years to improve the permeability and antifouling properties of membrane due to photocatalytic and superhydrophilicity effects [4][5][6] . TiO2 nanoparticles effectively degrade chemicals especially organic compounds with UV light.…”

Section: 10 Introductionmentioning

confidence: 99%

“…The hybrid TFC membrane was found that dramatic photobactericidal effect on E. coli under UV light illumination. Other researchers, Bae et al 5 were prepared two types of TiO2 immobilized ultrafiltration membranes, TiO2 entrapped and deposited membranes. TiO2 entrapped membrane showed lower flux decline compared to neat membrane and TiO2 deposited membrane exhibited greater fouling mitigation effect compared to TiO2 entrapped membrane.…”

Section: 10 Introductionmentioning

confidence: 99%

Membrane Performance: TiO2 Nanoparticles Coated on Polysulfone (PSf) Ultrafiltration Membrane Surfaces

et al. 2013

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This study focuses on the modification polysulfone (PSf) ultrafiltration membrane surfaces via coated and irradiated with titanium dioxide (TiO2) nanoparticles with UV lights respectively. Basically, the flat sheet membrane was prepared using phase inversion technique with three conditions: (i) uncoated PSf membrane, (ii) coated PSf membrane with TiO2 and (iii) PSf membrane coated with TiO2 irradiated to UV. The coating process was carried out using dipping method into TiO2 nanoparticles suspension at different concentrations (0.01, 0.03 and 0.05 wt.%). Membrane was immersed in all suspension for 15 and 30 minutes. Then, coated membranes were exposured under 184 Watts UV lamp at two different durations, 15 and 30 minutes. The performance of membranes was evaluated in terms of pure water flux (PWF) and humic acid (HA) rejection. The morphology of membranes was characterized using scanning electron microscopy (SEM). Analysis of the result revealed that 15 minutes immersion of membrane in TiO2 suspension showed a better performance in term permeation and rejection of compared to 30 min immersion. This is due to the pore plugging as time of immersion increased. Therefore, the coated membranes with 0.03 wt.% of TiO2 nanoparticles at 15 minutes immersion and 15 minutes exposure of UV light irradiation were determined as an ideal performance of rejection and permeation compared to the other.

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Effect of TiO2 nanoparticles on fouling mitigation of ultrafiltration membranes for activated sludge filtration

Cited by 415 publications

References 15 publications

Enhanced ultrafiltration PES membranes doped with mesostructured functionalized silica particles

Enhanced ultrafiltration PES membranes doped with mesostructured functionalized silica particles

Preparation and Characterization of Microporous Hollow Fiber Membranes Containing Hydrotalcite as an Inorganic Adsorbent

Membrane Performance: TiO2 Nanoparticles Coated on Polysulfone (PSf) Ultrafiltration Membrane Surfaces

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