Immobilization of TiO2 into a poly methyl methacrylate (PMMA) as hybrid film for photocatalytic degradation of methylene blue

Ounas, Omar; Foulani, Abdellah Anouar El; Lekhlif, Brahim; Jamaleddine, Jamal

doi:10.1016/j.matpr.2019.08.068

Cited by 17 publications

(7 citation statements)

References 11 publications

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“…Ounas et al [122] presented a simple and effective approach to prepare a polymethyl methacrylate-TiO 2 (TiO 2 / PMMA) film photocatalyst, by a cheap and lowcost technique. The characterization of the film by XRD, FTIR, and Transmittance spectroscopy confirmed that the anatase TiO 2 has been deposited on the surface of the polymer.…”

Section: Immobilized Photocatalystsmentioning

confidence: 99%

“…In this sense, several supported photocatalysts have been prepared for MO [121,[126][127][128][129][130], RhB [123,[131][132][133], MB [122,[134][135][136][137][138][139][140][141][142][143][144], and other pulliting dyes [124,125,[145][146][147][148][149][150][151][152][153][154][155][156][157][158][159] removal, as shown in Table 3.…”

Section: Immobilized Photocatalystsmentioning

confidence: 99%

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Use of Nanostructured Photocatalysts for Dye Degradation: A Review

Santoyo

Andrade-Espinoza

Romero-Toledo

et al. 2022

Period. Polytech. Chem. Eng.

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Among the technologies proposed for wastewater treatment, the Advanced Oxidation Processes are viable and technological strategies for dyes degradation. Different photocatalytic systems classified in metal oxides alone or combined through hybrid composites or immobilized onto supports have been designed in various nanostructured shapes for their application in the photodegradation of polluting dyes. This review aims to describe the dyes as an environmental threat, photocatalysis as an effective process to remove dyes from water and provide an overview of the recent studies using photocatalytic systems grouped according to their development. Furthermore, this review describes the main parameters of a photocatalytic system with an important role in dye photodegradation. Finally, we discuss the limitations of photocatalysis for real industrial applications and the challenges for this environmental nanotechnology.

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Section: Immobilized Photocatalystsmentioning

confidence: 99%

Section: Immobilized Photocatalystsmentioning

confidence: 99%

Use of Nanostructured Photocatalysts for Dye Degradation: A Review

Santoyo

Andrade-Espinoza

Romero-Toledo

et al. 2022

Period. Polytech. Chem. Eng.

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“…[83] Polymers have recently garnered public attention because of their outstanding processing capability, low density, and low cost, indicating a high potential for use as substrate materials for TiO 2 . [84,85] Many methods have been developed to generate polymer-supported TiO 2 photocatalysts. [86][87][88] Immobilization of TiO 2 on polymer substrates has several advantages, including better photonic efficiency, ease of catalyst recovery, less catalyst loss, and the availability of extended contact time with contaminants to be decomposed.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Epoxy Paint Based on TiO₂ for the Decontamination of Water under Visible LED and Sunlight Irradiation

Chawraba,

Medlej,

Noun

et al. 2024

ChemistrySelect

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Semiconductor oxides such as titanium dioxide (TiO2) have been used as photocatalysts for removing contaminants. In addition, TiO2 nanoparticles in suspension form are difficult to recover and recycle, and they are expensive. In our work, titanium dioxide has been immobilized on a commercially available, thermally stable, chemically stable, and cheap polymer. The nanocomposite is synthesized with varying percentages of TiO2, 0.25, 0.5, and 1 weight percent. The obtained nanocomposites were characterized, and the effect of the process parameter (i. e., initial concentration of MB, amount of catalyst, light wavelength, and power of light) was investigated. Also, the results show good photodegradation of MB by the TiO2‐epoxy nanocomposite. The decomposition of 10 ppm methylene blue (MB) during 200 min under 25 W visible LED irradiation can reach 95 %. This value is higher than that obtained with pristine TiO2, which does not have photocatalytic activity under LED light. The antibacterial activity of nanocomposites concerning Escherichia coli and Stephalocous aureus was studied, and an inhibition zone of 2 cm and 3.5 cm was obtained, respectively. Therefore, the TiO2‐epoxy nanocomposite was applied to a glass jar and tested after four months for the degradation of methylene blue (5 ppm) and methyl orange (8 ppm) under sunlight. The paint demonstrated good photocatalytic efficiency of 41 % and 72 % within 310 min, respectively.

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“…For stable photocatalysis applications, the preparation of inorganic polymers composites is currently attracting significant attention. This includes the immobilization of semiconductors on poly (methyl methacrylate) (PMMA) [8], polycarbonate (PC) [9], polystyrene (PS) [10], polyamide (PA) [11], polyethylene (PE) [12] or polyethylene terephthalate (PET) [13].…”

Section: Introductionmentioning

confidence: 99%

Highly Stable Photocatalytic Removal of Paraquat Dichloride using ZnO/TiO2 supported on PVC

Ashiru¹,

Matmin²,

Toemen

2021

Mal. J. Fund. Appl. Sci.

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This study presents on ZnO/TiO2 supported on PVC (ZnO/TiO2@PVC) in the photocatalytic removal of paraquat dichloride. The ZnO/TiO2@PVC was characterized using XRD, FESEM-EDX, FTIR, and AFM. Findings indicated that ZnO/TiO2@PVC allowed degradation of paraquat dichloride under UV irradiation by the rate of up to 73%. XRD pattern indicated the presence of both TiO2(anatase) and ZnO (zincite) crystalline as well as PVC amorphous structures. FESEM and AFM results revealed the observed shape and surface of TiO2 interconnected nanowires with ZnO nanorods uniformly distributed according to EDX mapping. The reduced surface roughness was also shown in the supported photocatalyst. FTIR analysis clearly demonstrate the combined spectra of immobilised ZnO/TiO2 powder catalyst onto the PVC in the composite. Kinetic study of the degradation process was performed according to pseudo-first-order and the influence of ZnO/TiO2 coating onto PVC polymer and initial paraquat concentration were investigated on the treatment performance. Under optimized condition (pH = 7, PQ =20 mg/L and catalyst coating =15%), the stability and reusability of the supported catalyst was also evaluated over ten sequential treatment runs, and the catalyst maintain high reactivity. High recyclability of the ZnO/TiO2@PVC composites as catalyst in photodegradation processes are also reported in this study.

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Immobilization of TiO2 into a poly methyl methacrylate (PMMA) as hybrid film for photocatalytic degradation of methylene blue

Cited by 17 publications

References 11 publications

Use of Nanostructured Photocatalysts for Dye Degradation: A Review

Use of Nanostructured Photocatalysts for Dye Degradation: A Review

Photocatalytic Epoxy Paint Based on TiO₂ for the Decontamination of Water under Visible LED and Sunlight Irradiation

Highly Stable Photocatalytic Removal of Paraquat Dichloride using ZnO/TiO2 supported on PVC

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Immobilization of TiO2 into a poly methyl methacrylate (PMMA) as hybrid film for photocatalytic degradation of methylene blue

Cited by 17 publications

References 11 publications

Use of Nanostructured Photocatalysts for Dye Degradation: A Review

Use of Nanostructured Photocatalysts for Dye Degradation: A Review

Photocatalytic Epoxy Paint Based on TiO2 for the Decontamination of Water under Visible LED and Sunlight Irradiation

Highly Stable Photocatalytic Removal of Paraquat Dichloride using ZnO/TiO2 supported on PVC

Contact Info

Product

Resources

About

Photocatalytic Epoxy Paint Based on TiO₂ for the Decontamination of Water under Visible LED and Sunlight Irradiation