Novel CaBi6O10 photocatalyst for methylene blue degradation under visible light irradiation

Wang, Yongjiao; He, Yiming; Li, Tingting; Cai, Jun; Luo, Ming; Zhao, Leihong

doi:10.1016/j.catcom.2011.12.011

Cited by 68 publications

(27 citation statements)

References 21 publications

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“…The band‐gap energy ( Eg ) values of samples obtained via both impregnation–calcination and sonochemical methods were the same (2.3 eV). These values are similar to those reported in the literature . The specific surface area of the CaBi 6 O 10 samples were determined by the BET method.…”

Section: Resultsmentioning

confidence: 99%

Sonochemical synthesis of CaBi₆O₁₀nanoplates: photocatalytic degradation of organic pollutants (ciprofloxacin and methylene blue) and oxidizing species study (h⁺, OH·, H₂O₂and O₂^•-)

Montalvo-Herrera

Sánchez-Martínez

Torres-Martı́nez

2017

J. Chem. Technol. Biotechnol

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BACKGROUND CaBi6O10 nanoplates were synthesized by a sonochemical method using a high‐power ultrasonic processor. Also, the CaBi6O10 was synthesized by an impregnation‐calcination method in order to compare the effect of the synthesis method on the photocatalytic activity of the photocatalyst. In addition, the role of the oxidizing species such as h+, OH•, H2O2 and O2•‐ was evaluated during the photocatalytic degradation of ciprofloxacin (CPFX) and methylene blue (MB). RESULTS The sample synthesized sonochemically showed a morphology of nanoplates with a thickness around 50 nm and length 1.5 µm. Also, the sample showed the best photocatalytic activity (i.e. the sample with the highest surface area and a plate‐like morphology), degrading CPFX by 56% and MB by 67%. The main species involved in the degradation of CPFX were the OH· radicals, and in the degradation of MB it was H2O2. CONCLUSIONS CaBi6O10 nanoplates were prepared successfully by a sonochemical method, showing the best photocatalytic activity in the degradation of CPFX and MB, mainly attributed to the morphology of the nanoplates. In addition, it was observed that the main species involved in the degradation of CPFX were the OH· radicals and in the degradation of MB, H2O2. © 2017 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 99%

Sonochemical synthesis of CaBi₆O₁₀nanoplates: photocatalytic degradation of organic pollutants (ciprofloxacin and methylene blue) and oxidizing species study (h⁺, OH·, H₂O₂and O₂^•-)

Montalvo-Herrera

Sánchez-Martínez

Torres-Martı́nez

2017

J. Chem. Technol. Biotechnol

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“…The first one is to extend the optical absorption range of TiO 2 and enhance the separation efficiency of photogenerated electron−hole pairs via doping, modification, or semiconductor coupling with forming heterojunction [5][6][7]. Another approach is to develop a new visible-light-driven photocatalyst with high activity [8][9][10][11][12]. Till to now, a lot of novel photocatalysts, including CaBi 2 O 4 [8], Ag 3 PO 4 [10], g-C 3 N 4 [11] and Bi 2 WO 6 [12], has been reported.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of hollow CdMoO4 coupled g-C3N4 heterojunction with enhanced photocatalytic activity

Zhao

Zhang

Lin

et al. 2015

Journal of Hazardous Materials

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107

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“…14. Semiconductors have the similar band gaps 3.2 and 3.3 eV [60]. When the photocatalysts were irradiated by sunlight with the photon energy hm that exceeded the band gap energy of ZnO shown as 3.19 eV in Fig.…”

Section: Sunlight-induced Photocatalytic Activity Of Synthesized Zno Npsmentioning

confidence: 99%

Phytoextract-mediated synthesis of zinc oxide nanoparticles using aqueous leaves extract of Ipomoea pes-caprae (L).R.br revealing its biological properties and photocatalytic activity

Venkateasan

Prabakaran

Sujatha

2017

Nanotechnol. Environ. Eng.

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ZnO NPs were efficiently synthesized from the leaves extract of Ipomoea pes-caprae. The work focuses on phytochemical studies, phytomediated synthesis and characterization of ZnO NPs and its biological applications. Phytochemicals present in the extract may be responsible for reducing the metal salts into their respective nanosize particles. The UV-Vis spectrum infers the formation of NPs, with absorbed peak at 322 nm. The XRD pattern depicted significant peaks at 2h positions which confirmed the hexagonal wurtzite structure. FTIR spectrum (ZnO NPs) was recorded to identify the functional group of biomolecules involved in synthesis. ZnO NPs was measured in the range of 2-20 nm by FE-SEM and particle analyses. ZnO NPs in various concentrations revealed potential antioxidant (IC 50 -21.09) and antibacterial activities. Cytotoxicity activity by Vero cell line (MTT assay) was found to be significant. ZnO NPs exhibited concentration-dependent cytotoxic reactivity to Vero cells after 24-h contact. ZnO NPs exhibited efficient dye degradation of methylene blue in the presence of sunlight. Due to the versatile properties and applications of ZnO NPs, these were widely studied by user-friendly approaches being green, simple and economy.& Venugopal Sujatha

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Novel CaBi6O10 photocatalyst for methylene blue degradation under visible light irradiation

Cited by 68 publications

References 21 publications

Sonochemical synthesis of CaBi₆O₁₀nanoplates: photocatalytic degradation of organic pollutants (ciprofloxacin and methylene blue) and oxidizing species study (h⁺, OH·, H₂O₂and O₂^•-)

Sonochemical synthesis of CaBi₆O₁₀nanoplates: photocatalytic degradation of organic pollutants (ciprofloxacin and methylene blue) and oxidizing species study (h⁺, OH·, H₂O₂and O₂^•-)

Fabrication and characterization of hollow CdMoO4 coupled g-C3N4 heterojunction with enhanced photocatalytic activity

Phytoextract-mediated synthesis of zinc oxide nanoparticles using aqueous leaves extract of Ipomoea pes-caprae (L).R.br revealing its biological properties and photocatalytic activity

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Novel CaBi6O10 photocatalyst for methylene blue degradation under visible light irradiation

Cited by 68 publications

References 21 publications

Sonochemical synthesis of CaBi6O10nanoplates: photocatalytic degradation of organic pollutants (ciprofloxacin and methylene blue) and oxidizing species study (h+, OH·, H2O2and O2•-)

Sonochemical synthesis of CaBi6O10nanoplates: photocatalytic degradation of organic pollutants (ciprofloxacin and methylene blue) and oxidizing species study (h+, OH·, H2O2and O2•-)

Fabrication and characterization of hollow CdMoO4 coupled g-C3N4 heterojunction with enhanced photocatalytic activity

Phytoextract-mediated synthesis of zinc oxide nanoparticles using aqueous leaves extract of Ipomoea pes-caprae (L).R.br revealing its biological properties and photocatalytic activity

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Sonochemical synthesis of CaBi₆O₁₀nanoplates: photocatalytic degradation of organic pollutants (ciprofloxacin and methylene blue) and oxidizing species study (h⁺, OH·, H₂O₂and O₂^•-)

Sonochemical synthesis of CaBi₆O₁₀nanoplates: photocatalytic degradation of organic pollutants (ciprofloxacin and methylene blue) and oxidizing species study (h⁺, OH·, H₂O₂and O₂^•-)