Fabrication of novel magnetically separable visible-light-driven photocatalysts through photosensitization of Fe 3 O 4 /ZnO with CuWO 4

Shekofteh-Gohari, Maryam; Habibi‐Yangjeh, Aziz

doi:10.1016/j.jiec.2016.08.028

Cited by 104 publications

(21 citation statements)

References 43 publications

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“…Hence, separation of the photogenerated charge carriers will be greatly hindered, resulting in decrease in the photocatalytic performance, as observed in Figure A. Similar results have been observed in the literature for different multi‐component photocatalysts …”

Section: Resultssupporting

confidence: 81%

Novel g‐C₃N₄ nanosheets/CDs/BiOCl photocatalysts with exceptional activity under visible light

2018

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We fabricated novel ternary nanocomposites through integration of C‐dots (carbon dots), BiOCl, and nanosheets of graphitic carbon nitride (g‐C3N4 nanosheets) by a cost‐effective route. The fabricated photocatalysts were subsequently characterized by XRD, EDX, TEM, HRTEM, XPS, FT‐IR, UV‐vis DRS, TGA, BET, and PL methods to gain their structure, purity, morphology, optical, textural, and thermal properties. In addition, the degradation intermediates were identified by gas chromatography‐mass spectroscopy (GC‐MS). Photocatalytic performance of the synthesized samples was studied by photodegradations of three cationic (RhB, MB, and fuchsine), one anionic (MO) dyes, one colorless (phenol) pollutant and removal of an inorganic pollutant (Cr(VI)) under visible light. It was revealed that the ternary nanocomposite with loading 20% of BiOCl illustrated superlative performances in the selected photocatalytic reactions compared with the corresponding bare and binary photocatalysts. Visible‐light photocatalytic activity of the g‐C3N4 nanosheets/CDs/BiOCl (20%) nanocomposite was 42.6, 27.8, 24.8, 20.2, and 15.9 times higher than the pure g‐C3N4 for removal of RhB, MB, MO, fuchsine, and phenol, respectively. Likewise, the ternary photocatalyst showed enhanced activity of 15.3 times relative to the g‐C3N4 in photoreduction of Cr(VI). Moreover, the ternary nanocomposite exhibited excellent chemical stability and recyclability after five cycles. Finally, the mechanism for improved photocatalytic performance was discussed based on the band potential positions.

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Section: Resultssupporting

confidence: 81%

Novel g‐C₃N₄ nanosheets/CDs/BiOCl photocatalysts with exceptional activity under visible light

2018

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“…XRD patterns of S2 and S3 are shown in Figure . The distinctive X‐ray diffraction patterns of S2 at 2 θ = 31.78°, 34.44°, 36.26°, 47.54°, 56.59°, 62.85°,67.93° and 69.06° of ZnO (JCPDS36–1451) were recognized by comparison with literature records and proved the pure phases of the catalyst . Sample S2 showed a very weak pattern owing to the low concentration of Fe 3 O 4 in the sample.…”

Section: Resultsmentioning

confidence: 72%

“…Fe 3 O 4 nanoparticles were synthesized according to the literature and ferric chloride hexahydrate and ferrous sulfate heptahydrate were employed as an iron source. ZnO/Fe 3 O 4 nanocomposites ( S1 ) were prepared according to the literature without adding any IL. ZnO/Fe 3 O 4 nanocomposites ( S2 and S3 ) were synthesized by a direct precipitation process.…”

Section: Methodsmentioning

confidence: 99%

2D ZnO/Fe₃O₄ nanocomposites as a novel catalyst‐promoted green synthesis of novel quinazoline phosphonate derivatives

Ezzatzadeh

Hossaini

2020

Applied Organom Chemis

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In this research a novel and efficient procedure for the preparation of phosphonate derivatives using the reaction of 2,4‐dihydroxyacetophenone, isopropenylacetylene, 2‐amino‐N‐alkyl benzamide, dialkyl acetylenedicarboxylates and trimethyl phosphite or triphenyl phosphite in the presence of reusable 2D ZnO/Fe3O4 nanocomposites in water at room temperature was investigated. The 2D ZnO/Fe3O4 nanocomposites were synthesized using ionic liquid [OMIM]Br as a stabilizer and soft template. In addition, the power of antioxidant for some prepared compounds was studied using trapping of radicals by DPPH and a ferric reduction activity potential experiment. As a result, compound 6f displayed a noteworthy power for trapping of free radicals and 6b exhibited excellent reducing power compared with standards (BHT and TBHQ). Moreover, the antimicrobial power of some prepared quinazolinone phosphonates was proved by employing the disk diffusion experiment on two kinds of bacteria, Gram‐positive and ‐negative bacteria. The obtained outcomes of disk diffusion test showed that these compounds prevented bacterial growth. Some advantages of this procedure are: short time of reaction, high yields of product and easy separation of catalyst and products.

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“…Approximately 71 % degradation of textile effluent was achieved in 4 hours. The intimate contact between two phases enhances separation of photogenerated electrons and holes, thus reduces the recombination [39][40][41][42]. of energy band edges of the two phases at the right positions, which facilitated the efficient migration of the charge carriers across the surfaces before their recombination, and provided sufficient potential to initiate redox reactions.…”

Section: Photocatalytic Degradation Of Methylene Blue Rhodamine B Anmentioning

confidence: 99%

Visible light degradation of textile effluent by electrodeposited multiphase CuInSe2 semiconductor photocatalysts

Karthikeyan

Sivaranjani

Dhanavel

et al. 2017

Journal of Molecular Liquids

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Fabrication of novel magnetically separable visible-light-driven photocatalysts through photosensitization of Fe 3 O 4 /ZnO with CuWO 4

Cited by 104 publications

References 43 publications

Novel g‐C₃N₄ nanosheets/CDs/BiOCl photocatalysts with exceptional activity under visible light

Novel g‐C₃N₄ nanosheets/CDs/BiOCl photocatalysts with exceptional activity under visible light

2D ZnO/Fe₃O₄ nanocomposites as a novel catalyst‐promoted green synthesis of novel quinazoline phosphonate derivatives

Visible light degradation of textile effluent by electrodeposited multiphase CuInSe2 semiconductor photocatalysts

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Fabrication of novel magnetically separable visible-light-driven photocatalysts through photosensitization of Fe 3 O 4 /ZnO with CuWO 4

Cited by 104 publications

References 43 publications

Novel g‐C3N4 nanosheets/CDs/BiOCl photocatalysts with exceptional activity under visible light

Novel g‐C3N4 nanosheets/CDs/BiOCl photocatalysts with exceptional activity under visible light

2D ZnO/Fe3O4 nanocomposites as a novel catalyst‐promoted green synthesis of novel quinazoline phosphonate derivatives

Visible light degradation of textile effluent by electrodeposited multiphase CuInSe2 semiconductor photocatalysts

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Novel g‐C₃N₄ nanosheets/CDs/BiOCl photocatalysts with exceptional activity under visible light

Novel g‐C₃N₄ nanosheets/CDs/BiOCl photocatalysts with exceptional activity under visible light

2D ZnO/Fe₃O₄ nanocomposites as a novel catalyst‐promoted green synthesis of novel quinazoline phosphonate derivatives