Elimination of pesticide atrazine by photoelectrocatalysis using a photoanode based on WO3 nanosheets

Fernández‐Domene, R.M.; Sánchez-Tovar, Rita; Lucas-Granados, Bianca; Muñoz-Portero, M.J.; Garcı́a-Antón, J.

doi:10.1016/j.cej.2018.06.015

Cited by 72 publications

(23 citation statements)

References 63 publications

(98 reference statements)

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“…In general, tungsten oxide-based materials described in the literature exhibit donor densities in the range of 10 19 -10 22 cm -3 , depending on the synthesis method. The values typically reported for oxide layers obtained by anodization (10 22 cm −3 ) [24,[41][42][43][44][45] are in agreement with those obtained for the anodic WO 3 samples studied in this work. The highest values were received for samples B and G.…”

Section: Resultssupporting

confidence: 90%

Improving Photoelectrochemical Properties of Anodic WO3 Layers by Optimizing Electrosynthesis Conditions

2020

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Although anodic tungsten oxide has attracted increasing attention in recent years, there is still a lack of detailed studies on the photoelectrochemical (PEC) properties of such kind of materials grown in different electrolytes under various sets of conditions. In addition, the morphology of photoanode is not a single factor responsible for its PEC performance. Therefore, the attempt was to correlate different anodizing conditions (especially electrolyte composition) with the surface morphology, oxide thickness, semiconducting, and photoelectrochemical properties of anodized oxide layers. As expected, the surface morphology of WO3 depends strongly on anodizing conditions. Annealing of as-synthesized tungsten oxide layers at 500 °C for 2 h leads to obtaining a monoclinic WO3 phase in all cases. From the Mott-Schottky analysis, it has been confirmed that all as prepared anodic oxide samples are n-type semiconductors. Band gap energy values estimated from incident photon−to−current efficiency (IPCE) measurements neither differ significantly for as−synthesized WO3 layers nor depend on anodizing conditions such as electrolyte composition, time and applied potential. Although the estimated band gaps are similar, photoelectrochemical properties are different because of many different reasons, including the layer morphology (homogeneity, porosity, pore size, active surface area), oxide layer thickness, and semiconducting properties of the material, which depend on the electrolyte composition used for anodization.

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Section: Resultssupporting

confidence: 90%

Improving Photoelectrochemical Properties of Anodic WO3 Layers by Optimizing Electrosynthesis Conditions

2020

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“…À0.97 V vs. NHE). 68,69 Correspondingly, the E CB value of 450-Bi 2 WO 6 should be À0.97 eV, suggesting that the reaction of producing $O 2 À from Fig. 9 Mott-Schottky plots of 450-Bi 2 WO 6 .…”

Section: Possible Mechanism Of Photodegradationmentioning

confidence: 95%

Synthesis and application of Bi₂WO₆for the photocatalytic degradation of two typical fluoroquinolones under visible light irradiation

Huang

Chen

et al. 2019

RSC Adv.

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“…Many researchers have carried out studies on the pollution removal caused by atrazine. Fernández-Domene et al (2018) studied the removal of atrazine under photoelectro catalytic conditions. Wu et al (2018) removed atrazine by using peroxymono sulfate in combination with ferrate as an oxidant in the water.…”

Section: Introductionmentioning

confidence: 99%

A composite of Ni–Fe–Zn layered double hydroxides/biochar for atrazine removal from aqueous solution

Wang

Kang

Jiang

et al. 2020

Biochar

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This study assembled corn stalk-derived biochar (BC) with layered double hydroxide (LDH) through a rapid coprecipitation of biochar and metal (Ni/Fe/Zn) hydroxide precipitates. A BC and LDH composite (BC-LDH) and modified BC-LDH material after heating (BC-LDH-P) were prepared successfully for atrazine adsorptive removal. The physicochemical properties of the synthesized samples were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FT-IR), and X-ray photoelectron spectroscopy (XPS). Batch experiments were conducted to study the sorption of atrazine onto BC, BC-LDH, and BC-LDH-P from the aqueous solution. The adsorption of atrazine onto BC-LDH and BC-LDH-P were performed following with the pseudo-second-order kinetic model, and the sorption isotherms agreed well with the Freundlich fitting model. The adsorption amounts of the three materials are arranged in descending order is as follows: BC-LDH-P > BC-LDH > BC (143.15 > 123.10 > 95.93 mg g −1 , respectively). Due to the high crystallinity of the LDH material and the high binding degree with biochar, Ni/Fe/Zn-LDH biochar composites offer a potential alternative to a carbon-based adsorbent for atrazine removal from aqueous solution.

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Elimination of pesticide atrazine by photoelectrocatalysis using a photoanode based on WO3 nanosheets

Cited by 72 publications

References 63 publications

Improving Photoelectrochemical Properties of Anodic WO3 Layers by Optimizing Electrosynthesis Conditions

Improving Photoelectrochemical Properties of Anodic WO3 Layers by Optimizing Electrosynthesis Conditions

Synthesis and application of Bi₂WO₆for the photocatalytic degradation of two typical fluoroquinolones under visible light irradiation

A composite of Ni–Fe–Zn layered double hydroxides/biochar for atrazine removal from aqueous solution

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Elimination of pesticide atrazine by photoelectrocatalysis using a photoanode based on WO3 nanosheets

Cited by 72 publications

References 63 publications

Improving Photoelectrochemical Properties of Anodic WO3 Layers by Optimizing Electrosynthesis Conditions

Improving Photoelectrochemical Properties of Anodic WO3 Layers by Optimizing Electrosynthesis Conditions

Synthesis and application of Bi2WO6for the photocatalytic degradation of two typical fluoroquinolones under visible light irradiation

A composite of Ni–Fe–Zn layered double hydroxides/biochar for atrazine removal from aqueous solution

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Product

Resources

About

Synthesis and application of Bi₂WO₆for the photocatalytic degradation of two typical fluoroquinolones under visible light irradiation