Piezotronic effect boosted photocatalytic performance of heterostructured BaTiO3/TiO2 nanofibers for degradation of organic pollutants

Wu, Junqiang; Wang, Wenwei; Tian, Yao; Song, Chunxiao; Qiu, Hong; Han, Xue

doi:10.1016/j.nanoen.2020.105122

Cited by 138 publications

(63 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Heterojunction constructed by coupling different materials with diverse energy level structure is another effective means to improve photocatalytic performance [19][20][21][22][23] . In recent years, Z-scheme heterostructure, especially the direct Z-scheme heterostructure, has become one of the most effective strategy for obtaining high-efficient photocatalyst 22,23 .…”

mentioning

confidence: 99%

Interfacial chemical bond and internal electric field modulated Z-scheme Sv-ZnIn2S4/MoSe2 photocatalyst for efficient hydrogen evolution

et al. 2021

View full text Add to dashboard Cite

Construction of Z-scheme heterostructure is of great significance for realizing efficient photocatalytic water splitting. However, the conscious modulation of Z-scheme charge transfer is still a great challenge. Herein, interfacial Mo-S bond and internal electric field modulated Z-scheme heterostructure composed by sulfur vacancies-rich ZnIn2S4 and MoSe2 was rationally fabricated for efficient photocatalytic hydrogen evolution. Systematic investigations reveal that Mo-S bond and internal electric field induce the Z-scheme charge transfer mechanism as confirmed by the surface photovoltage spectra, DMPO spin-trapping electron paramagnetic resonance spectra and density functional theory calculations. Under the intense synergy among the Mo-S bond, internal electric field and S-vacancies, the optimized photocatalyst exhibits high hydrogen evolution rate of 63.21 mmol∙g−1·h−1 with an apparent quantum yield of 76.48% at 420 nm monochromatic light, which is about 18.8-fold of the pristine ZIS. This work affords a useful inspiration on consciously modulating Z-scheme charge transfer by atomic-level interface control and internal electric field to signally promote the photocatalytic performance.

show abstract

mentioning

confidence: 99%

Interfacial chemical bond and internal electric field modulated Z-scheme Sv-ZnIn2S4/MoSe2 photocatalyst for efficient hydrogen evolution

et al. 2021

View full text Add to dashboard Cite

show abstract

“…In recent years, photocatalytic water splitting using solar energy to produce hydrogen, the mineralization and degradation of organic pollutants, cathodic protection and anticorrosion, and the reduction of high-priced heavy metal ions and CO 2 have attracted widespread attention. [14][15][16][17][18][19][20][21][22][23] Based on the properties of semiconductors, wide-bandgap photocatalysts oen have stronger redox activity. However, these photocatalysts can only be excited by high-energy UV light in the solar spectrum, which is a critical problem that needs to be solved for the practical application of photocatalytic technology.…”

Section: Introductionmentioning

confidence: 99%

Y₂O₃:Yb³⁺, Tm³⁺/ZnO composite with a heterojunction structure and upconversion function for the photocatalytic degradation of organic dyes

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Until now there are many wide gap oxides (TiO 2 [ 4 , 5 ], SnO 2 [ 6 , 7 ], and ZnO [ 8 , 9 ]) and narrow band gap materials (Bi 2 WO 6 [ 10 , 11 ], Ag 3 PO 4 [ 12 , 13 ], BiPO 4 [ 14 , 15 ], g-C 3 N 4 [ 16 , 17 ], WO 3 [ 18 , 19 ], and BiOX [ 20 , 21 ]) studied for the potocatalytic removal of wastewater organic contaminants and indoor pollutants. The mono-components photocatalyst have disadvantages such as narrow visible light absorption [ 22 , 23 ], low specific surface area [ 24 , 25 ], and fast charge carriers recombination [ 26 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

Tandem Structures Semiconductors Based on TiO2_SnO2 and ZnO_SnO2 for Photocatalytic Organic Pollutant Removal

Eneşca

Isac

2021

Nanomaterials

View full text Add to dashboard Cite

The photocatalyst materials correlation with the radiation scenario and pollutant molecules can have a significant influence on the overall photocatalytic efficiency. This work aims to outline the significance of optimizing the components mass ratio into a tandem structure in order to increase the photocatalytic activity toward pollutant removal. ZnO_SnO2 and TiO2_SnO2 tandem structures were obtained by the doctor blade technique using different mass ratios between the components. The samples contain metal oxides with crystalline structures and the morphology is influenced by the main component. The photocatalytic activity was tested using three radiation scenarios (UV, UV-Vis, and Vis) and two pollutant molecules (tartrazine and acetamiprid). The results indicate that the photocatalytic activity of the tandem structures is influenced by the radiation wavelength and pollutant molecule. The TiO2_SnO2 exhibit 90% photocatalytic efficiency under UV radiation in the presence of tartrazine, while ZnO_SnO2 exhibit 73% photocatalytic efficiency in the same experimental conditions. The kinetic evaluation indicate that ZnO_SnO2 (2:1) have a higher reaction rate comparing with TiO2_SnO2 (1:2) under UV radiation in the presence of acetamiprid.

show abstract

Piezotronic effect boosted photocatalytic performance of heterostructured BaTiO3/TiO2 nanofibers for degradation of organic pollutants

Cited by 138 publications

References 60 publications

Interfacial chemical bond and internal electric field modulated Z-scheme Sv-ZnIn2S4/MoSe2 photocatalyst for efficient hydrogen evolution

Interfacial chemical bond and internal electric field modulated Z-scheme Sv-ZnIn2S4/MoSe2 photocatalyst for efficient hydrogen evolution

Y₂O₃:Yb³⁺, Tm³⁺/ZnO composite with a heterojunction structure and upconversion function for the photocatalytic degradation of organic dyes

Tandem Structures Semiconductors Based on TiO2_SnO2 and ZnO_SnO2 for Photocatalytic Organic Pollutant Removal

Contact Info

Product

Resources

About

Piezotronic effect boosted photocatalytic performance of heterostructured BaTiO3/TiO2 nanofibers for degradation of organic pollutants

Cited by 138 publications

References 60 publications

Interfacial chemical bond and internal electric field modulated Z-scheme Sv-ZnIn2S4/MoSe2 photocatalyst for efficient hydrogen evolution

Interfacial chemical bond and internal electric field modulated Z-scheme Sv-ZnIn2S4/MoSe2 photocatalyst for efficient hydrogen evolution

Y2O3:Yb3+, Tm3+/ZnO composite with a heterojunction structure and upconversion function for the photocatalytic degradation of organic dyes

Tandem Structures Semiconductors Based on TiO2_SnO2 and ZnO_SnO2 for Photocatalytic Organic Pollutant Removal

Contact Info

Product

Resources

About

Y₂O₃:Yb³⁺, Tm³⁺/ZnO composite with a heterojunction structure and upconversion function for the photocatalytic degradation of organic dyes