Nanostructured-based WO3 photocatalysts: recent development, activity enhancement, perspectives and applications for wastewater treatment

Tahir, Muhammad Bilal; Nabi, Ghulam; Rafique, Muhammad; Khalid, N.R.

doi:10.1007/s13762-017-1394-z

Cited by 155 publications

(51 citation statements)

References 82 publications

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“…Another critical problem that nowadays the environment and humankind are facing is the constantly increasing water pollution. Industrial, agricultural, and household pollution have as a result wastewater production containing pesticides, dyes, organic and inorganic compounds, and heavy metals . Consequently, the degradation of toxic compounds is of utmost importance, and it triggered the search of materials having the ability to decontaminate the wastewater at a low‐cost, and in an eco‐friendly manner.…”

Section: Applicationsmentioning

confidence: 99%

Review on the Versatility of Tungsten Oxide Coatings

Mardare

Hassel

2019

Physica Status Solidi (a)

108

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Tungsten oxide is a versatile material with many advantages such as large availability and low fabrications costs. Additionally, it is suitable to be produced in the form of thin films or coatings, which makes it very attractive for many applications. In this Feature Article, the material properties such as crystallography, chemical stability, and semiconducting properties are presented, followed by examples of coating technologies. Furthermore, the relation between its structure and some of the very important applications fields such as electro‐ and photochromism, as well as pH sensing are analyzed in detail. Its auspicious semiconducting properties make it attractive to be used as photo(electro)catalyst, therefore applications of thin films based on WO3 are emphasized such as photoanodes for water splitting, in healthcare as antimicrobial material and for degradation of pollutants or for CO2 reduction. The article is concluded by a short overview of the current status of research employing tungsten oxide.

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Section: Applicationsmentioning

confidence: 99%

Review on the Versatility of Tungsten Oxide Coatings

Mardare

Hassel

2019

Physica Status Solidi (a)

108

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“…Photocatalyst is activated under the irradiation solar spectrum. Photocatalyst is the major focusing corner for the researchers because of their effective behavior and extraordinary properties for the production of green energy . Green energy is in the form of hydrogen energy that is obtained by the water splitting under the shower of solar spectrum.…”

Section: Renewable Sources Of Energy Productionmentioning

confidence: 99%

“…Photocatalyst is the major focusing corner for the researchers because of their effective behavior and extraordinary properties for the production of green energy. [58][59][60][61][62] Green energy is in the form of hydrogen energy that is obtained by the water splitting under the shower of solar spectrum. Photocatalyst has extraneous ability to initiate the reaction for the splitting of water into hydrogen and oxygen shown in Figure 6.…”

Section: Solar Energymentioning

confidence: 99%

A review on copper vanadate‐based nanostructures for photocatalysis energy production

et al. 2018

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Summary The economic, social, and environmental aspects are important that should be notable before the selection of a method for the production of energy. Various renewable energy sources are used like hydropower, biomass, biofuel, geothermal energy, and wind energy for the production of sustainable energy that are excellent approaches to fulfill energy environmental energy demands. Renewable sources of energy give an excellent chance to extenuate the gas emission in greenhouse and reduction of global warming with the help of renewable sources of energy. The importance and utilization of the variety of renewable sources of energy are elaborated in this article. The emerging and exploring technique for the production of energy is the photocatalysis. In photocatalysis, solar spectrum is the extraneous source that is used with water to produce hydrogen energy (green energy) by the water splitting under the shower of the solar spectrum. The solar spectrum contains heat and intensity of light from which light spectrum is the abundantly used for the splitting of water. The photocatalyst is the key factor to initiate the reaction depending upon the energy band gap by absorbing the energy from the spectrum of the sun. Semiconducting materials having lower forbidden energy band gap are the basic requirements to use them as a photocatalyst for photocatalysis. Copper vanadate and their composites are the promising materials that are used as photocatalyst for the production of hydrogen energy. Copper vanadate is the focusing material that can be used as photocatalyst. It is an n‐type semiconducting material with 2 eV indirect energy band gap having monoclinic structural phase which is tuned by the doping of metals like chromium, molybdenum, and silver to reduce the grain size and energy band gap and increase the surface area and optical absorption of solar light only to enhance the photocatalytic performance towards the production of hydrogen energy by water splitting in the presence of solar light.

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“…The challenge is exacerbated by poor, inappropriate and insufficient effluent treatment at source . However, various reports based on different industries such as clothing textiles, pharmaceuticals, quality assurance laboratories, production industries, furniture and numerous others polluting the environment (water and air) with solid wastes, effluents and various synthetic dyes is of global concern . Recent, researchers have focussed on the coloured wastewater discharged from textile, food and printing industries into the rivers without proper treatment which leads to detrimental effects to fresh water flora and fauna, environmental ecology and human health .…”

Section: Introductionmentioning

confidence: 99%

“…[2,3] However, various reports based on different industries such as clothing textiles, pharmaceuticals, quality assurance laboratories, production industries, furniture and numerous others polluting the environment (water and air) with solid wastes, effluents and various synthetic dyes is of global concern. [3][4][5] Recent, researchers have focussed on the coloured wastewater discharged from textile, food and printing industries into the rivers without proper treatment which leads to detrimental effects to fresh water flora and fauna, environmental ecology and human health. [6] These industries may use acid dyes (when classified by use) and the conversional methods currently used in their treatment plants fail to remove these dyes from their wastewater discharges [7] resulting in coloured effluents.…”

Section: Introductionmentioning

confidence: 99%

In‐Situ Synthesis of Tetraphenylporphyrin/Tungsten (VI) Oxide/Reduced Graphene Oxide (TPP/WO₃/RGO) Nanocomposite for Visible Light Photocatalytic Degradation of Acid Blue 25

et al. 2019

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Environmental pollution is regarded as a major concern and photocatalysis has been used successfully to combat discharges of recalcitrant pollutants. In this study, meso tetraphenylporphyrin (TPP), tungsten (VI) oxide and reduced graphene oxide nanocomposite materials were prepared by in situ method and calcined at different temperatures. The catalysts impact was evaluated for the degradation of acid blue 25 (AB25) under visible light irradiation. The as‐prepared composite materials were characterised for morphological and crystalline structural properties using SEM, Raman, FTIR, TGA, BET and XRD techniques. UV‐Vis and PL absorption studies obtained a band gap energy of 2.14 eV which showed its ability to absorb light in the visible region. The nanocomposite exhibited spherically shaped particles of monoclinic WO3 when using 20 mg TPP and calcination temperature of 350 °C for 4 hours. The highest degradation efficiency of 85% on 20 ppm AB25 as per UV/Vis and TOC results, was obtained for the photocatalyst calcined at 350 °C for 4 hours. The high degradation efficiency can be ascribed to the visible light absorbing nature of the composite and high separation rate of photogenerated charge carriers. This nanocomposite can be a suitable candidate for treatment of other dyestuff in textile effluents.

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Nanostructured-based WO3 photocatalysts: recent development, activity enhancement, perspectives and applications for wastewater treatment

Cited by 155 publications

References 82 publications

Review on the Versatility of Tungsten Oxide Coatings

Review on the Versatility of Tungsten Oxide Coatings

A review on copper vanadate‐based nanostructures for photocatalysis energy production

In‐Situ Synthesis of Tetraphenylporphyrin/Tungsten (VI) Oxide/Reduced Graphene Oxide (TPP/WO₃/RGO) Nanocomposite for Visible Light Photocatalytic Degradation of Acid Blue 25

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Nanostructured-based WO3 photocatalysts: recent development, activity enhancement, perspectives and applications for wastewater treatment

Cited by 155 publications

References 82 publications

Review on the Versatility of Tungsten Oxide Coatings

Review on the Versatility of Tungsten Oxide Coatings

A review on copper vanadate‐based nanostructures for photocatalysis energy production

In‐Situ Synthesis of Tetraphenylporphyrin/Tungsten (VI) Oxide/Reduced Graphene Oxide (TPP/WO3/RGO) Nanocomposite for Visible Light Photocatalytic Degradation of Acid Blue 25

Contact Info

Product

Resources

About

In‐Situ Synthesis of Tetraphenylporphyrin/Tungsten (VI) Oxide/Reduced Graphene Oxide (TPP/WO₃/RGO) Nanocomposite for Visible Light Photocatalytic Degradation of Acid Blue 25