Synthesis and photocatalytic properties of In2O3 micro/nanostructures with different morphologies

Shao, Meiling; Chen, Haitao; Shen, Ming; Chen, Wuxia

doi:10.1016/j.colsurfa.2017.06.022

Cited by 30 publications

(5 citation statements)

References 17 publications

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“…In 2 O 3 has been widely applied in gas sensing and photocatalytic in recent years due to its wide band gap (3.75 eV) [3]. The traditional methods for synthesizing hollow metal oxide semiconductors include template [4], hydrothermal [5], solvothermal [6], sol-gel [7], etc. Among them, the template method has advantages such as simple, high repetition rate, excellent predictability and controllable particle size, special shape and structure, which is widely applied in synthesizing hollow sphere In 2 O 3 semiconductor.…”

Section: Introductionmentioning

confidence: 99%

Deposition of hollow sphere In₂O₃ coatings by liquid flame spray

Zhang

Sun

Shen

et al. 2019

Surface Engineering

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Hollow sphere In(OH) 3 coatings were deposited by a simple liquid flame spray with hollow sphere In(OH) 3 suspension, which was synthesized by improved soft template methods. The morphology of the In(OH) 3 was well preserved and oxygen vacancies were produced in the harsh thermomechanical environment of the flame spraying process. The In 2 O 3 coatings and In 2 O 3 powder were obtained by calcinating the In(OH) 3 coatings and In(OH) 3 precursor, respectively. The thickness of the coatings increased from 12 to 22 μm as the diameter of the feed nozzle increased, and the interconnection between the single hollow spheres In 2 O 3 in the coatings was better than that of the as-synthesized In 2 O 3 powder. The diameter of the single hollow spheres In 2 O 3 in the coatings was about 1.2∼1.4 μm, which is similar to the as-synthesized In 2 O 3 powder. The In 2 O 3 coatings with hollow spheres possessed a very high specific surface area, excellent interconnections, controllable thickness and numerous oxygen defects.

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Section: Introductionmentioning

confidence: 99%

Deposition of hollow sphere In₂O₃ coatings by liquid flame spray

Zhang

Sun

Shen

et al. 2019

Surface Engineering

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“…Focusing on the sample P@V1, Ag 4 V 2 O 7 , a micrometer-sized ball cluster composed of nanoscale tubes, was partially covered by the Ag 3 PO 4 crystal, and the internal Ag 4 V 2 O 7 crystal still can be seen in Figure b, showing a micro-nano structure. The nanotubes of Ag 4 V 2 O 7 enhanced the specific surface area and adsorption to provide more active sites. − Meanwhile, the microspheres consisting of nanotubes contributed to stability due to the aggregation-inducing effect and facilitated the in situ growth of Ag 3 PO 4 . This peculiar structure provided an efficient route for enhancing the photocatalytic performance of Ag 3 PO 4 @Ag 4 V 2 O 7 .…”

Section: Resultsmentioning

confidence: 99%

“…The nanotubes of Ag 4 V 2 O 7 enhanced the specific surface area and adsorption to provide more active sites. 43−45 Meanwhile, the microspheres consisting of nanotubes contributed to stability due to the aggregation-inducing effect 46 and facilitated the in situ growth of Ag 3 PO 4 . This peculiar structure provided an efficient route for enhancing the photocatalytic performance of Ag 3 PO 4 @Ag 4 V 2 O 7 .…”

Section: Resultsmentioning

confidence: 99%

Design and Application of Ag₃PO₄@Ag₄V₂O₇ Z-Scheme Photocatalysts with a Micro-Nano Tube-Cluster Structure for the Co-Degradation of Nitrate and Ammonia in Wastewater

Zhou

Wang

et al. 2019

Ind. Eng. Chem. Res.

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Water eutrophication due to the discharge of nitrogen-containing wastewater has aroused widespread concern around the world, and photocatalysis is confirmed a promising method to dispose the problem. Nonetheless, co-degradation of ammonia nitrogen and nitrate nitrogen is still nerve-wracking. In this work, the Ag3PO4@Ag4V2O7 Z-scheme photocatalysts with a micro-nano tube-cluster structure were designed by a facile in situ growth method, which realized concurrent removal of nitrate and ammonia in wastewater, without the addition of hole scavengers or electron scavengers, due to its high redox ability. The experimental results demonstrated that P@V1 composites showed superior rate (2.79 times enhancement) and higher conversion (3.00 times enhancement) compared with the pure Ag4V2O7 crystals for ammonia degradation and the pure Ag3PO4 crystals for nitrate reduction, respectively. Therefore, Z-scheme photocatalysts offer a new thought for co-degradation of low concentrations of nitrogenous contaminated water.

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“…It will have a prominent impact on humans and nature if the toxic effluent flows into water bodies. − Meanwhile, synthetic dyes are not subject to biodegradation, resulting in much more difficult complete removal than that of other substances. Traditional water treatment technologies for waste dyes, including adsorption, coagulation, flocculation, prechlorination, and biological treatment methods, − are accompanied by some disadvantages in the case of water purification, such as the release of irritating chemicals, secondary pollution, high cost, low decolorization efficiency, and poor regeneration capacity. These methods are not in line with the concept of sustainability.…”

Section: Introductionmentioning

confidence: 99%

Self-Cleaning and Photodegradable PVDF-g-IL Dye Wastewater Separation Membranes Modified with Dopamine-Coated TiO₂ Core–Shell Particles

et al. 2023

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In the present work, self-cleaning membranes of ionic liquid-grafted poly(vinylidene fluoride) (PVDF) polydopamine-coated TiO 2 were prepared through a nonsolvent-induced phase separation method. PDA facilitates the uniform dispersion of TiO 2 nanoparticles in PVDF substrates; meanwhile, TiO 2 @PDA core−shell particles and the hydrophilic IL improve the hydrophilicity of PVDF membranes and contribute to the increased average pore size and porosity, significantly improving the pure water permeation flux and dye wastewater flux (the water flux increased to 385.9 Lm −2 h −1 ). In addition, the combined effect of the positively charged IL and the strongly viscous PDA shell layer enhanced the retention and adsorption of dyes so that the retention and adsorption rates of both anionic and cationic dyes were close to 100%. Notably, the hydrophilic PDA allowed more TiO 2 to migrate to the membrane surface during the phase transition; on the other hand, dopamine could promote photodegradation. Therefore, the combined two factors for TiO 2 @PDA were beneficial to the ultraviolet-catalytic (UV-catalytic) degradation of dyes on the surface of the membrane, leading to >80% degradation rates of various dyes. Thus, the high-efficiency and easy-to-operate wastewater treatment technology provides attractive potential for dye removal and resolution of membrane contamination.

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Synthesis and photocatalytic properties of In2O3 micro/nanostructures with different morphologies

Cited by 30 publications

References 17 publications

Deposition of hollow sphere In₂O₃ coatings by liquid flame spray

Deposition of hollow sphere In₂O₃ coatings by liquid flame spray

Design and Application of Ag₃PO₄@Ag₄V₂O₇ Z-Scheme Photocatalysts with a Micro-Nano Tube-Cluster Structure for the Co-Degradation of Nitrate and Ammonia in Wastewater

Self-Cleaning and Photodegradable PVDF-g-IL Dye Wastewater Separation Membranes Modified with Dopamine-Coated TiO₂ Core–Shell Particles

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Synthesis and photocatalytic properties of In2O3 micro/nanostructures with different morphologies

Cited by 30 publications

References 17 publications

Deposition of hollow sphere In2O3 coatings by liquid flame spray

Deposition of hollow sphere In2O3 coatings by liquid flame spray

Design and Application of Ag3PO4@Ag4V2O7 Z-Scheme Photocatalysts with a Micro-Nano Tube-Cluster Structure for the Co-Degradation of Nitrate and Ammonia in Wastewater

Self-Cleaning and Photodegradable PVDF-g-IL Dye Wastewater Separation Membranes Modified with Dopamine-Coated TiO2 Core–Shell Particles

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Deposition of hollow sphere In₂O₃ coatings by liquid flame spray

Deposition of hollow sphere In₂O₃ coatings by liquid flame spray

Design and Application of Ag₃PO₄@Ag₄V₂O₇ Z-Scheme Photocatalysts with a Micro-Nano Tube-Cluster Structure for the Co-Degradation of Nitrate and Ammonia in Wastewater

Self-Cleaning and Photodegradable PVDF-g-IL Dye Wastewater Separation Membranes Modified with Dopamine-Coated TiO₂ Core–Shell Particles