Photocatalytic degradation of geosmin by Pd nanoparticle modified WO3 catalyst under simulated solar light

Xue, Qi‐Kun; Liu, Yonggang; Zhou, Qian; Utsumi, Motoo; Zhang, Zhenya; Sugiura, Norío

doi:10.1016/j.cej.2015.08.016

Cited by 47 publications

(15 citation statements)

References 54 publications

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“…Photocatalysis is a promising method for the removal of GSM from water (Lawton, Robertson, Robertson, & Bruce, ). Titanium dioxide under UV light (UV‐A) has been used for the removal of GSM with highly oxidative •OH radicals, but the method requires UV light for its activation (Xue et al, ). However, few studies have been conducted to study modified TiO 2 with sun light to degrade off‐flavour compounds (Fotiou, Triantis, Kaloudis, & Hiskia, ).…”

Section: Removal Of Off‐flavours In Rasmentioning

confidence: 99%

Controlling of geosmin and 2‐methylisoborneol induced off‐flavours in recirculating aquaculture system farmed fish—A review

Lindholm‐Lehto

Vielma

2018

Aquac Res

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Recirculating aquaculture system (RAS) is an increasingly popular alternative to open aquaculture production systems. However, off-flavours and odours can accumulate in the fish flesh from the circulating water and decrease the fish meat quality. Offflavours are typically caused by geosmin (GSM) and 2-methylisoborneol (MIB) that are lipophilic compounds formed as secondary by-products of bacterial metabolism.Even though GSM and MIB are not toxic, they often are disliked by consumers, and both have very low human sensory detection limits. Multiple methods have been suggested to remove or decrease GSM and MIB in fish, including ozonation, advanced oxidation processes (AOP)s and adsorption removal from water using activated carbon and/or zeolites. So far, purging with fresh water is the only efficient method available to remove the off-flavours. There are multiple analytical methods available for the extraction and separation of GSM and MIB from fish flesh and water. This review discusses the current knowledge of GSM and MIB formation, the challenges faced by RAS farms due to these compounds and process solutions available for their removal. K E Y W O R D S2-methylisoborneol (MIB), geosmin (GSM), off-flavours, purging

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Section: Removal Of Off‐flavours In Rasmentioning

confidence: 99%

Controlling of geosmin and 2‐methylisoborneol induced off‐flavours in recirculating aquaculture system farmed fish—A review

Lindholm‐Lehto

Vielma

2018

Aquac Res

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“…Furthermore, the hydrogen could be produced, commercially, via methane's steam reforming and coal gasification. However, both methods result in the emission of CO 2 . Hydrogen may be stored in the form of gas, liquid, and/or metal hydride form and can be transmitted over long range of distance via tankers or pipelines.…”

Section: Introductionmentioning

confidence: 99%

Boosting the performance of visible light‐driven WO ₃ /g‐C ₃ N ₄ anchored with BiVO ₄ nanoparticles for photocatalytic hydrogen evolution

2019

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Summary In this article, a ternary WO3/g‐C3N4@ BiVO4 composites were prepared using eco‐friendly hydrothermal method to produce efficient hydrogen energy through water in the presence of sacrificial agents. The prepared samples were characterized by scanning electron microscopy (SEM), scanning transmission electron microscopy (STEM), transmission electron microscopy (TEM), X‐ray diffraction (XRD), ultraviolet‐visible (UV‐vis), Brunauer‐Emmett‐Teller (BET) surface area, and photoluminescence spectroscopy (PL) emission spectroscopy. The experimental study envisages the formation of 2‐D nanostructures and observed that such kinds of nanostructures could provide more active sites for photocatalytic reduction of water and their inherent reactive‐species mechanism. The results showed the excellent photocatalytic performance (432 μmol h−1 g−1) for 1.5% BiVO4 nanoparticles in WO3/g‐C3N4 composite when compared with pure WO3 and BiVO4. The optical properties and photocatalytic activity measurement confirmed that BiVO4 nanoparticles in WO3/g‐C3N4 photocatalyst inhibited the recombination of photogenerated electron and holes and enhanced the reduction reactions for H2 production. The enhanced photocatalytic efficiency of the composite nanostructures may be attributed to wide absorption region of visible light, large surface area, and efficient separation of electrons/holes pairs owing to synergistic effects between BiVO4 and WO3/g‐C3N4. The prepared samples would be a precise optimal photocatalyst to increase their suppliers for worldwide applications especially in energy harvesting.

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“…For water splitting, the reduction potential of water is 1.23 V that is the minimum potential required to reduce the water. [70][71][72] The 2 terminal electrodes are created in the cell and split the water molecules into H + and OH − ions; both are moved towards the respective electrode by which H + is converted into hydrogen atom after ions receiving of electron from its respective electrode. The whole mechanism is elaborated as shown in Figure 7.…”

Section: Photoelectrochemical Reactionmentioning

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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Photocatalytic degradation of geosmin by Pd nanoparticle modified WO3 catalyst under simulated solar light

Cited by 47 publications

References 54 publications

Controlling of geosmin and 2‐methylisoborneol induced off‐flavours in recirculating aquaculture system farmed fish—A review

Controlling of geosmin and 2‐methylisoborneol induced off‐flavours in recirculating aquaculture system farmed fish—A review

Boosting the performance of visible light‐driven WO ₃ /g‐C ₃ N ₄ anchored with BiVO ₄ nanoparticles for photocatalytic hydrogen evolution

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

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Photocatalytic degradation of geosmin by Pd nanoparticle modified WO3 catalyst under simulated solar light

Cited by 47 publications

References 54 publications

Controlling of geosmin and 2‐methylisoborneol induced off‐flavours in recirculating aquaculture system farmed fish—A review

Controlling of geosmin and 2‐methylisoborneol induced off‐flavours in recirculating aquaculture system farmed fish—A review

Boosting the performance of visible light‐driven WO 3 /g‐C 3 N 4 anchored with BiVO 4 nanoparticles for photocatalytic hydrogen evolution

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

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Boosting the performance of visible light‐driven WO ₃ /g‐C ₃ N ₄ anchored with BiVO ₄ nanoparticles for photocatalytic hydrogen evolution