Integration of Ag2WO4 and AgBr with TiO2 to fabricate ternary nanocomposites: Novel plasmonic photocatalysts with remarkable activity under visible light

Feizpoor, Solmaz; Habibi‐Yangjeh, Aziz

doi:10.1016/j.materresbull.2017.10.028

Cited by 71 publications

(14 citation statements)

References 37 publications

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“…Optical measurements, such as transmission or absorption spectroscopy [9,22,23,25,35,37,88,[103][104][105][106][107][108][109][110], Raman spectroscopy [111], and pump-probe measurements, are used for imaging optical effects in enhanced photocatalytic reactions.…”

Section: Optical Measurementsmentioning

confidence: 99%

“…Graphene is highly conductive in two specific dimensions and is largely used like metal decoration in binary nanophotocatalysts [160][161][162][163][164]. For advanced methods improving photocatalytic reactions, several studies have suggested ternary nanophotocatalytst, such as Ag-TiO 2 -graphene [165][166][167], Ag 2 MoO 4 -AgBr-Ag [104], Ag-rGO-Bi 2 MoO 6 [105], Ag-AgCl-TiO 2 [168], Ag-AgCl-(BiO) 2 CO 3 [106], ZnO-Ag-Ag 2 WO 4 [107], Ag 2 WO 4 -AgBr-TiO 2 ternary nanocomposites [108], Au-La 2 Ti 2 O 7 [169], and Au-TiO 2 -graphene [170]. Cu 7 S 4 -Pd hetero-nanostructures were also reported to exhibit near-infrared solar energy harvesting, leading to highly efficient photocatalytic reactions.…”

Section: Specially Fabricated Samplesmentioning

confidence: 99%

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Review of Experimental Setups for Plasmonic Photocatalytic Reactions

Huang

Chiang

et al. 2019

Catalysts

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Plasmonic photocatalytic reactions have been substantially developed. However, the mechanism underlying the enhancement of such reactions is confusing in relevant studies. The plasmonic enhancements of photocatalytic reactions are hard to identify by processing chemically or physically. This review discusses the noteworthy experimental setups or designs for reactors that process various energy transformation paths for enhancing plasmonic photocatalytic reactions. Specially designed experimental setups can help characterize near-field optical responses in inducing plasmons and transformation of light energy. Electrochemical measurements, dark-field imaging, spectral measurements, and matched coupling of wavevectors lead to further understanding of the mechanism underlying plasmonic enhancement. The discussions herein can provide valuable ideas for advanced future studies.

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Section: Optical Measurementsmentioning

confidence: 99%

Section: Specially Fabricated Samplesmentioning

confidence: 99%

Review of Experimental Setups for Plasmonic Photocatalytic Reactions

Huang

Chiang

et al. 2019

Catalysts

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“…In recent years, semiconductor photocatalyst is regarded as a promising tool for remediation of water pollution 16 and many attempts focused on the development of novel visible-light-driven photocatalysts and their activities studies have been reported 17 – 22 . Among these, TiO 2 19 , 20 , and ZnO 21 , 22 are the most popular semiconducting metal oxide photocatalysts used for degradation of organic pollutants in wastewater. Semiconducting photocatalysts have wide band gap energy of 3.0–3.2 eV for UV absorption which accounts only 4% in solar spectrum.…”

Section: Introductionmentioning

confidence: 99%

Solvothermal synthesis of facet-dependent BiVO4 photocatalyst with enhanced visible-light-driven photocatalytic degradation of organic pollutant: assessment of toxicity by zebrafish embryo

Kamble

Ling

2020

Sci Rep

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the BiVo 4 photocatalyst plays a very important role in photocatalytic reactions attributed to its unique crystalline structure, size, morphology and surface area. Herein, we report a facet-dependent monoclinic scheelite BiVo 4 (m-BiVo 4) photocatalyst with uniform truncated square (18 sided) hexagonal bipyramidal shape synthesized by a template-free and surfactant-free solvothermal method using ethylene glycol solvent under cost-effective and mild reactions. The structural, morphological and optical properties of the m-BiVo 4 photocatalyst are widely characterized. the photocatalytic activity of the m-BiVo 4 photocatalyst is tested towards 20 ppm methylene blue (MB) dye aqueous solution as a pollutant model under visible light irradiation. enhanced visible-light driven photoactivity with dye degradation efficiency of approx. 91% at a rate of 0.388 × 10 −2 min −1 is obtained, presumably due to the presence of high-active (040) facets. Zebrafish embryo toxicity test of treated MB dye solution reveals the degradation and toxicity reduction of the MB dye. Moreover, the recycling experiment validates that the m-BiVo 4 photocatalyst has a great structural stability with reliable performance. this work may provide a lucid and expedient strategy to synthesize highly crystalline (040) facet-dependent semiconductor photocatalyst toward dye degradation and obviously industrial wastewater remediation. Earth is gifted with abundant quantity of clean water. But now days, the world is found in serious risk on environmental and economic stability due to the enormous population and industrialization growth 1. Today in many industries, organic dyes are used extensively and mainly in textile, leather, cosmetics, plastic, paper, ink, ceramic and food processings. Along with these, huge amounts of industrial effluents containing various organic pollutants such as agrochemicals, drugs and antibiotics have also been discharged into fresh water 2,3. Particularly in textile industries, dyes are commonly used owing to their favourable characteristics such as water-soluble, low-price, bright colours and easier to apply on the fabric. The dyes are usually categorized based on their chromophoric structures and different types of dyes such as azo, diazo, xanthene, anthraquinone, acidic and basic dyes are readily available. The azo dyes (-N=N-) are most commonly employed in textile industries and exhibit environmental toxicity effects including carcinogenic and mutagenic events to human beings, animals and water bodies 4. Prior to 2018, it was projected that approximately 70% of the industrially wastewater was not

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“…Currently, silver/silver halides (Ag/AgX, X = Cl, Br, I) plasmonic photocatalysts with highly efficient photocatalytic performances have been widely investigated . Among them, Ag/AgBr with appropriate band gap obtains the most attention .…”

Section: Introductionmentioning

confidence: 99%

Magnetic retrievable Ag/AgBr/ZnFe₂O₄ photocatalyst for efficient removal of organic pollutant under visible light

Liu

Xue

et al. 2020

Applied Organom Chemis

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In the present work, a visible‐light‐driven Ag/AgBr/ZnFe2O4 photocatalyst has been successfully synthesized via a deposition–precipitation and photoreduction method. The crystal structure, chemical composition, morphology and optical properties of the as‐prepared nanocomposites were characterized by X‐ray diffraction spectroscopy, X‐ray photoelectron spectroscopy, scanning electron microscopy, high‐resolution transmission electron microscopy, energy‐dispersive X‐ray spectroscope, UV–vis diffuse reflectance spectroscopy and photoluminescence. The photocatalytic activities of the Ag/AgBr/ZnFe2O4 nanocomposites were evaluated through the photodegradation of gaseous toluene and methyl orange (MO) under visible light. The results revealed that the as‐prepared Ag/AgBr/ZnFe2O4 nanocomposite exhibited excellent photocatalytic activity. The degrading efficiency of MO could still reach 90% after four cycles, and the Ag/AgBr/ZnFe2O4 nanocomposite could be recycled easily by a magnet. Additionally, the enhanced photocatalytic mechanism was discussed according to the trapping experiments, which indicated that the photo‐generated holes (h+) and •O2− played important roles in photodegradation process. At last, a possible photocatalytic oxidation pathways of toluene was proposed based on the results of GC–MS. The Ag/AgBr/ZnFe2O4 composites showed potential application for efficient removal of organic pollutant.

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Integration of Ag2WO4 and AgBr with TiO2 to fabricate ternary nanocomposites: Novel plasmonic photocatalysts with remarkable activity under visible light

Cited by 71 publications

References 37 publications

Review of Experimental Setups for Plasmonic Photocatalytic Reactions

Review of Experimental Setups for Plasmonic Photocatalytic Reactions

Solvothermal synthesis of facet-dependent BiVO4 photocatalyst with enhanced visible-light-driven photocatalytic degradation of organic pollutant: assessment of toxicity by zebrafish embryo

Magnetic retrievable Ag/AgBr/ZnFe₂O₄ photocatalyst for efficient removal of organic pollutant under visible light

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Integration of Ag2WO4 and AgBr with TiO2 to fabricate ternary nanocomposites: Novel plasmonic photocatalysts with remarkable activity under visible light

Cited by 71 publications

References 37 publications

Review of Experimental Setups for Plasmonic Photocatalytic Reactions

Review of Experimental Setups for Plasmonic Photocatalytic Reactions

Solvothermal synthesis of facet-dependent BiVO4 photocatalyst with enhanced visible-light-driven photocatalytic degradation of organic pollutant: assessment of toxicity by zebrafish embryo

Magnetic retrievable Ag/AgBr/ZnFe2O4 photocatalyst for efficient removal of organic pollutant under visible light

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Magnetic retrievable Ag/AgBr/ZnFe₂O₄ photocatalyst for efficient removal of organic pollutant under visible light