Poly(3-hexylthiophene)/titanium dioxide nanocomposites prepared by in-situ polymerization: structure, morphology and electrochemical properties

Almeida, Aline Ingrid Alves dos Reis; Ferreira, Luiza De Lazari; Almeida, Gabriella Correia de; Calado, Hállen Daniel Rezende; Viana, Marcelo Machado

doi:10.1016/j.synthmet.2020.116544

Cited by 5 publications

(4 citation statements)

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“…Thus, the molecules' movement becomes more energetic which leads to a quicker reaction in less time [42]. According to Almeida and teams, the precipitation obtained from the previous step will be inserted into a microwave reactor for 4 minutes at 80 °C [22]. Thus, on a lab-scale, microwave-assisted heating is suitable and easy to be used as the outcomes will increase the reaction rate, less reaction time, increase in the product conversion, and less formation of undesired products.…”

Section: Preparation Methods Of Titanium Dioxidementioning

confidence: 99%

“…Thus, on a lab-scale, microwave-assisted heating is suitable and easy to be used as the outcomes will increase the reaction rate, less reaction time, increase in the product conversion, and less formation of undesired products. For this reason, this technique has gained importance due to its efficiency compared to the traditional heating route [22].…”

Section: Preparation Methods Of Titanium Dioxidementioning

confidence: 99%

“…After that, the precipitation is then inserted into the microwave reactor in order to acquire the TiO2 nanoparticles. Based on HRTEM images, it indicates that the particle size for the TiO2 nanoparticles is 20 nm [22]. Another method used to procure TiO2 nanoparticles without plant extract is by the simple mixing and precipitation method.…”

Section: Average Particle Sizementioning

confidence: 99%

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Preparation Method of Titanium Dioxide Nanoparticles and Its Application: An Update

Seman

Tarmizi

Ali

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Titanium dioxide (TiO2) is widely used because of its good biocompatibility and stability. Various methods were used to prepare TiO2 by using chemical, biological, and physical methods. In this paper, the currents methods to prepare TiO2 were evaluated either with or without using plant extract. The average particle size produced for different methods of technique and its application was also analyzed. Chemical methods use toxic chemical while physical methods such as gamma produce high energy and using biological method with plant extract is more environmentally friendly. This review gives an up-to-date summary of TiO2 produced using various synthesis methods with the focus on their particle sizes properties. Recent publications on this topic were extracted from related journals obtained from Science Direct online database from the year 2010 to 2021. Preparation methods, average particles sizes, and the applications of the synthesized TiO2 were evaluated and further discussed in this review. It was found that TiO2 of smaller particle sizes were obtained when synthesized without using plant extract. Furthermore, many researchers tend to combine TiO2 with other materials or composites to be mixed with polymers for various purposes of application especially wastewater treatment application.

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Section: Preparation Methods Of Titanium Dioxidementioning

confidence: 99%

Section: Preparation Methods Of Titanium Dioxidementioning

confidence: 99%

Section: Average Particle Sizementioning

confidence: 99%

See 1 more Smart Citation

Preparation Method of Titanium Dioxide Nanoparticles and Its Application: An Update

Seman

Tarmizi

Ali

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…TiO 2 nanoparticles were prepared by a microwave-assisted reaction using an original methodology [38]. For the synthesis of TiO 2 nanoparticles in rutile phase (I), 2 ml of titanium tetrachloride (TiCl 4 ), purchased from Merck, were added to 50 ml of deionized water (pH=1).…”

Section: Tio 2 Synthesismentioning

confidence: 99%

Ag/GO/TiO₂ nanocomposites: the role of the interfacial charge transfer for application in photocatalysis

2021

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TiO2 semiconductor nanoparticles (NPs) in the anatase phase have presented limitations of application in photocatalysis, mainly due to the fast recombination of photoexcited electrons. The combination with other nanoparticles/nanostructures has been shown to be a promising solution for increasing photocatalytic efficiency. In this work, titanium dioxide (TiO2) nanoparticles in different crystalline phases were prepared through a rapid microwave-assisted synthesis and modified by silver nanoparticles (Ag) and graphene oxide (GO). The samples were characterized by x-ray diffraction, transmission electron microscopy, energy dispersive x-ray spectroscopy, infrared spectroscopy and gas adsorption. Crystalline anatase NPs were obtained in basic conditions (pH = 8) while in acidic conditions (pH = 1), single-crystalline rutile NPs were formed. Different previous drying methods: oven and freeze-drying used led to a differentiation in crystallographic phases obtained. Anatase TiO2 and anatase-rutile mixture NPs calcined at 400 °C showed properties as high specific surface area, crystallinity and reduced electron–hole recombination which contributed to an enhanced photocatalytic activity, when compared to the Degussa P25 photoactivity. The effect of silver nanoparticles and GO addition to TiO2 nanopowder was evaluated for photocatalysis activity. An improvement in the methylene blue and rhodamine B dyes photodegradation was observed for both anatase and rutile TiO2 nanocomposites. We noted that anatase TiO2 nanoparticles degraded 53% of rhodamine B, and when functionalized with GO, the photodegradation increased to 69%. Comparatively, the addition of silver nanoparticles to anatase TiO2 increased the dye degradation to 97% in 180 min. Hence, we revel that in the TiO2 nanocomposites, silver nanoparticles showed better interfacial charge transfer than GO, contributing more effectively to the dye photodegradation process.

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Green Polymers Decorated with Metal Nanocomposites: Application in Energy Storage, Energy Economy and Environmental Safety

Srivastva

Saxena

Kumar

2022

Energy, Environment, and Sustainability

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Poly(3-hexylthiophene)/titanium dioxide nanocomposites prepared by in-situ polymerization: structure, morphology and electrochemical properties

Cited by 5 publications

References 57 publications

Preparation Method of Titanium Dioxide Nanoparticles and Its Application: An Update

Preparation Method of Titanium Dioxide Nanoparticles and Its Application: An Update

Ag/GO/TiO₂ nanocomposites: the role of the interfacial charge transfer for application in photocatalysis

Green Polymers Decorated with Metal Nanocomposites: Application in Energy Storage, Energy Economy and Environmental Safety

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Poly(3-hexylthiophene)/titanium dioxide nanocomposites prepared by in-situ polymerization: structure, morphology and electrochemical properties

Cited by 5 publications

References 57 publications

Preparation Method of Titanium Dioxide Nanoparticles and Its Application: An Update

Preparation Method of Titanium Dioxide Nanoparticles and Its Application: An Update

Ag/GO/TiO2 nanocomposites: the role of the interfacial charge transfer for application in photocatalysis

Green Polymers Decorated with Metal Nanocomposites: Application in Energy Storage, Energy Economy and Environmental Safety

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Ag/GO/TiO₂ nanocomposites: the role of the interfacial charge transfer for application in photocatalysis