Multi-cycle photocatalytic degradation of bezafibrate by a cast polyvinyl alcohol/titanium dioxide (PVA/TiO2) hybrid film

Ren, Meijie; Frimmel, Fritz H.; Abbt‐Braun, Gudrun

doi:10.1016/j.molcata.2015.02.004

Cited by 51 publications

(22 citation statements)

References 51 publications

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“…The presence of BZF in aquatic environments could be potentially harmful because of its mixture toxicity, synergistic, and additives effects [9]. In addition, bioaccumulation and biomagnification of BZF could occur through food chains [10].…”

Section: Introductionmentioning

confidence: 99%

Cobalt modified red mud catalytic ozonation for the degradation of bezafibrate in water: Catalyst surface properties characterization and reaction mechanism

Zhang

et al. 2016

Chemical Engineering Journal

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Section: Introductionmentioning

confidence: 99%

Cobalt modified red mud catalytic ozonation for the degradation of bezafibrate in water: Catalyst surface properties characterization and reaction mechanism

Zhang

et al. 2016

Chemical Engineering Journal

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“…Some examples of the widely used polymers are polyvinyl chloride (PVC) [1], polyethylene glycol (PEG) [2] and polyvinyl alcohol (PVA) [3]. Under certain state, polymers with carboxyl or hydroxyl groups particularly, will bond chemically with the hydroxyl groups on the surface of TiO 2 .…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Study of New Immobilized TiO₂Technique Towards Degradation of Reactive Red 4 Dye

Ain

Jalil

Zaharudin

et al. 2016

MATEC Web of Conferences

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Abstract. The study on TiO2 for wastewater remediation has gained interest among researchers. However, the application of this photocatalyst is limited due to non-recyclability of conventional TiO2. Thus, immobilization technique has been developed to solve this issue. Hence, a comparison study between two types of immobilized photocatalysts namely titanium dioxide (TiO2) and TiO2 mixed with polyvinyl alcohol (PVA) has been conducted in this work to observe the significant effect of PVA polymer in photocatalysis reaction of reactive red 4 (RR4) dye. Double sided adhesive tape (DSAT) was used as thin layer binder in this immobilization system. The result shows that the photocatalytic performance of TiO2-PVA/DSAT was higher than that of TiO2/DSAT under both normal UV and visible light irradiations due to the conjugated unsaturated polymer from PVA serve as electron donor for TiO2 thus increase the photocatalysis process. Besides, TiO2-PVA/DSAT was also found to possess much better adhesion strength to the support material compared to TiO2/DSAT. Based on the findings, this TiO2 immobilization system is expected to be beneficial in the industrial wastewater treatment. Thus, further study to improve the photocatalytic activity of this immobilized TiO2 will be in our future work.

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“…During the thermal treatment both turned to brown. Such a color change was not mentioned by either Lei et al (2012) or Ren et al (2015) [6,21] while Song et al (2014) observed this phenomenon but without any discussion of its reasons [14].…”

Section: Resultsmentioning

confidence: 98%

Investigation of a TiO 2 photocatalyst immobilized with poly(vinyl alcohol)

et al. 2017

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Immobilization of TiO2 photocatalyst was realized with application of poly(vinyl alcohol) (PVA). However, these PVA-based foils were too instable to be used for photocatalytic water cleaning. Their stability could be significantly enhanced by a thermal treatment, but this procedure generated various water-soluble derivatives such as aldehydes, ketones, and aromatic species. Photocatalytic pre-treatment of the foils proved to be suitable to remove these products from the surface of the composite. After three subsequent pre-treating cycles of irradiation and rinsing, the PVA-TiO2 foil became applicable for photocatalytic degradation of Triton X-100, a widely used non-ionic detergent. The composite catalyst kept its stability and efficiency even after some cycles of re-usage, while its surface underwent a perceptible, although quantitatively negligible degradation.

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Multi-cycle photocatalytic degradation of bezafibrate by a cast polyvinyl alcohol/titanium dioxide (PVA/TiO2) hybrid film

Cited by 51 publications

References 51 publications

Cobalt modified red mud catalytic ozonation for the degradation of bezafibrate in water: Catalyst surface properties characterization and reaction mechanism

Cobalt modified red mud catalytic ozonation for the degradation of bezafibrate in water: Catalyst surface properties characterization and reaction mechanism

Photocatalytic Study of New Immobilized TiO₂Technique Towards Degradation of Reactive Red 4 Dye

Investigation of a TiO 2 photocatalyst immobilized with poly(vinyl alcohol)

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Multi-cycle photocatalytic degradation of bezafibrate by a cast polyvinyl alcohol/titanium dioxide (PVA/TiO2) hybrid film

Cited by 51 publications

References 51 publications

Cobalt modified red mud catalytic ozonation for the degradation of bezafibrate in water: Catalyst surface properties characterization and reaction mechanism

Cobalt modified red mud catalytic ozonation for the degradation of bezafibrate in water: Catalyst surface properties characterization and reaction mechanism

Photocatalytic Study of New Immobilized TiO2Technique Towards Degradation of Reactive Red 4 Dye

Investigation of a TiO 2 photocatalyst immobilized with poly(vinyl alcohol)

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Resources

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Photocatalytic Study of New Immobilized TiO₂Technique Towards Degradation of Reactive Red 4 Dye