A new nano-TiO2 immobilized biodegradable polymer with self-cleaning properties

Sökmen, Münevver; Tatlıdil, İlknur; Breen, Christopher; Clegg, Francis; Buruk, Celal Kurtuluş; Sivlim, Tuğba; Akkan, Şenay

doi:10.1016/j.jhazmat.2011.01.020

Cited by 56 publications

(25 citation statements)

References 22 publications

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“…We also underline the role of TiO 2 as a photocatalytic antibacterial material that has considerable beneficial properties, such as bio-compatibility, a high potential for self-cleaning and high antibacterial activity, 11,12 and it is now the basis for a number of commercial antibacterial products. 17,18 Ratova et al 3 produced LDPE/TiO 2 films by an extrusion method and tested the photocatalytic antibacterial activity via the destruction of Escherichia coli while the TiO 2 concentration was 5 and 30 wt%. 3 Polymeric materials are a good candidate to use in the health care industry and for environmental materials.…”

Section: Introductionmentioning

confidence: 99%

Applications of a new type of poly(methyl methacrylate)/TiO2 nanocomposite as an antibacterial agent and a reducing photocatalyst

Salabat

Mirhoseini

2015

Photochem Photobiol Sci

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A new type of poly(methyl methacrylate) (PMMA)/TiO2 nanocomposite film sensitized by ionic liquids with a low dosage of TiO2 nanoparticles was prepared based on a microemulsion method. The photocatalytic activity, via the photoreduction of 4-nitrophenole (4-NP) to 4-aminophenole (4-AP) by NaBH4, and the photocatalytic-based antibacterial activity, for the destruction of Escherichia coli and Staphylococcus aureus, of the prepared nanocomposite film were investigated. The conditions for the maximum efficiency in the presence of visible light irradiation have been evaluated. The rate constant of the photoreduction of 4-NP to 4-AP was calculated and the maximum rate constant was found with the 0.01 wt% of TiO2 dosage in the photocatalyst and a solution pH of 7.5. The photocatalytic antibacterial maximum activity against Gram-negative bacteria was also obtained for the 0.01 wt% of TiO2 concentration of the photocatalyst. A notable result of this work is that PMMA/TiO2 nanocomposite films show efficient photocatalytic activity at very low loadings of TiO2, in contrast to other previous reports.

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Section: Introductionmentioning

confidence: 99%

Applications of a new type of poly(methyl methacrylate)/TiO2 nanocomposite as an antibacterial agent and a reducing photocatalyst

Salabat

Mirhoseini

2015

Photochem Photobiol Sci

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“…Moreover, a comprehensive review of TiO 2 films was conducted by Varshney et al (2016), in which various types of coating methods (e.g., doctor-blade, chemical vapour deposition, hydrothermal, electrophoretic deposition, sputter deposition, spray pyrolysis, and flame aerosol coating methods) are thoroughly explained [12]. In an earlier study by Sökmen et al [13], immobilized TiO 2 was used for the photodegradation of MB dye. This study revealed that more MB dye was removed in a shorter amount of time through immobilized TiO 2 -polymer.…”

Section: Introductionmentioning

confidence: 99%

Immobilized TiO2-Polyethylene Glycol: Effects of Aeration and pH of Methylene Blue Dye

et al. 2017

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Abstract:Immobilized TiO 2 and immobilized TiO 2 -polyethylene glycol (TiO 2 /PEG) films have been prepared via brush coating method. The formulation of immobilized TiO 2 film was prepared by mixing distilled water with P25, while the formulation containing P25 combined with 8% PEG in distilled water was used in preparing immobilized TiO 2 /PEG. A double sided adhesive tape (DSAT) was stacked onto a glass surface prior to coating with the formulations and annealing by a thermal treatment at 100 • C for 15 min. The photocatalytic activity of immobilized photocatalysts was evaluated under photodegradation of methylene blue (MB). It was observed that immobilized TiO 2 /PEG has showed a higher rate of photocatalytic activity compared to immobilize TiO 2 . The X-ray photoelectron spectroscopy and Fourier transform infrared (FT-IR) spectra of immobilized TiO 2 /PEG sample proved that the existence of C=O led to enhanced photoactivity efficiency under normal light and visible light irradiations. The photocatalytic activity performance of immobilized TiO 2 /PEG was the highest at 75 mL·min −1 aeration rate and pH 11 of MB dye. The correlation between of all these parameters was investigated in this study.

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“…More than 1000 substances have been tested [2]. Advanced oxidation using TiO 2 offer potential treatment opportunities for: tertiary treatment of municipal wastewater [3,4], for removal of endocrine disrupting chemicals [5][6][7] and disinfection [8,9], especially effluents containing pathogens resistant to chlorination [10][11][12][13][14][15][16]; treatment of hazardous effluents from hospitals [17,18]; industrial effluents from pulp and paper [19][20][21][22], dairy manufacturing [23], textile dyeing [24][25][26][27][28][29][30][31], agricultural oil mills and distilleries [32,33], and pharmaceutical industry [34][35][36][37]; wastewater effluents containing phenols [38][39][40][41] and chlorophenols [42,43], herbicides and pesticides [44][45][46], ammonia [4...…”

Section: Introductionmentioning

confidence: 99%

TiO2 Solar Photocatalytic Reactor Systems: Selection of Reactor Design for Scale-up and Commercialization—Analytical Review

2016

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For the last four decades, viability of photocatalytic degradation of organic compounds in water streams has been demonstrated. Different configurations for solar TiO 2 photocatalytic reactors have been used, however pilot and demonstration plants are still countable. Degradation efficiency reported as a function of treatment time does not answer the question: which of these reactor configurations is the most suitable for photocatalytic process and optimum for scale-up and commercialization? Degradation efficiency expressed as a function of the reactor throughput and ease of catalyst removal from treated effluent are used for comparing performance of different reactor configurations to select the optimum for scale-up. Comparison included parabolic trough, flat plate, double skin sheet, shallow ponds, shallow tanks, thin-film fixed-bed, thin film cascade, step, compound parabolic concentrators, fountain, slurry bubble column, pebble bed and packed bed reactors. Degradation efficiency as a function of system throughput is a powerful indicator for comparing the performance of photocatalytic reactors of different types and geometries, at different development scales. Shallow ponds, shallow tanks and fountain reactors have the potential of meeting all the process requirements and a relatively high throughput are suitable for developing into continuous industrial-scale treatment units given that an efficient immobilized or supported photocatalyst is used.

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A new nano-TiO2 immobilized biodegradable polymer with self-cleaning properties

Cited by 56 publications

References 22 publications

Applications of a new type of poly(methyl methacrylate)/TiO2 nanocomposite as an antibacterial agent and a reducing photocatalyst

Applications of a new type of poly(methyl methacrylate)/TiO2 nanocomposite as an antibacterial agent and a reducing photocatalyst

Immobilized TiO2-Polyethylene Glycol: Effects of Aeration and pH of Methylene Blue Dye

TiO2 Solar Photocatalytic Reactor Systems: Selection of Reactor Design for Scale-up and Commercialization—Analytical Review

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