Development of TiO2 photocatalyst reaction for water purification

Zhang, Lianfeng; Kanki, Tatsuo; Sano, Noriaki; Toyoda, Atsushi

doi:10.1016/s1383-5866(02)00157-0

Cited by 124 publications

(50 citation statements)

References 4 publications

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“…The actual dissolved oxygen was found to be 7.7-8.0 mg L −1 at the air flow rate of 2 L min −1 . Several authors have also demonstrated that there existed a sufficient amount of dissolved O 2 when optimal air flow rate was used in their photocatalytic degradation system [38][39][40][41]. The role of dissolved O 2 is to enhance the separation of the photogenerated electrons and holes and thereby improve the efficiency with which the •OH radicals are produced.…”

Section: Effect Of Air Flow Ratementioning

confidence: 99%

Parameter effect on photocatalytic degradation of phenol using TiO2-P25/activated carbon (AC)

Lam

Sin

Mohamed

2010

Korean J. Chem. Eng.

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P25 powder embedded and TiO 2 immobilized on activated carbon (TiO 2 -P25/AC) was prepared by P25 powder modified sol-gel and dip-coated method. The photocatalysts were characterized by XRD, BET, SEM and their photocatalytic activities were evaluated through phenol degradation in a fluidized bed photoreactor. The addition of P25 in the photocatalysts could significantly enhance the photocatalytic activity, and the optimum loading of P25 was 3 g L −1 . The operating parameter results indicated that the optimum pH for phenol degradation was 5.2; the effect of air flow rate gave an optimal value of 2 L min −1 ; the increasing of UV light intensity led to an increase of degradation efficiency due to more photons absorbed on the surface of the photocatalyst. The kinetics of the phenol degradation fitted well with the Langmuir-Hinshelwood kinetics model. Finally, the photocatalytic ability of TiO 2 -P25/AC was reduced only 10% after five cycles for phenol degradation.

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Section: Effect Of Air Flow Ratementioning

confidence: 99%

Parameter effect on photocatalytic degradation of phenol using TiO2-P25/activated carbon (AC)

Lam

Sin

Mohamed

2010

Korean J. Chem. Eng.

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“…Such applications as water and air sterilization or their purification from organic and non-organic pollutants are being broadly tested and developed [1][2][3][4][5][6]. The photocatalytic properties of titania are evidenced by the ability of thin coatings of this material to exhibit disinfecting activity following their illumination with UV light [7,8].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic activity of thin TiO2 films deposited using sol–gel and plasma enhanced chemical vapor deposition methods

Sobczyk-Guzenda

Pietrzyk

Szymanowski

et al. 2013

Ceramics International

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“…However, most investigations have to be carried out under ultraviolet (UV) light [3][4][5] since TiO 2 photocatalyst shows relatively high activity and chemical stability under UV light. Therefore, solar light cannot be fully utilized.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal synthesis of S-doped TiO2 nanoparticles and their photocatalytic ability for degradation of methyl orange

Tian

et al. 2009

Ceramics International

127

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A simple synthesis route to nanocrystalline S-doped TiO 2 photocatalysts by a hydrothermal method at 180 8C was developed and the photocatalytic activity of the obtained powders for the degradation of methyl orange was studied. The products were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The phase composition (anatase/rutile ratio) and the photocatalytic activity of the final materials were found to be markedly influenced by the amount of the incorporated sulphur. On increasing the S-dopant amount, the anatase/ rutile ratio and the photocatalytic activity of the as-prepared powders increased. Crown

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Development of TiO2 photocatalyst reaction for water purification

Cited by 124 publications

References 4 publications

Parameter effect on photocatalytic degradation of phenol using TiO2-P25/activated carbon (AC)

Parameter effect on photocatalytic degradation of phenol using TiO2-P25/activated carbon (AC)

Photocatalytic activity of thin TiO2 films deposited using sol–gel and plasma enhanced chemical vapor deposition methods

Hydrothermal synthesis of S-doped TiO2 nanoparticles and their photocatalytic ability for degradation of methyl orange

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