Strong pyro-electro-chemical coupling of Ba0.7Sr0.3TiO3@Ag pyroelectric nanoparticles for room-temperature pyrocatalysis

Xu, Xiaoli; Chen, Shijie; Wu, Zheng; Jia, Yanmin; Xiao, Lingbo; Liu, Yongsheng

doi:10.1016/j.nanoen.2018.06.005

Cited by 108 publications

(58 citation statements)

References 42 publications

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“…Recently, pyrocatalysis becomes increasingly popular in the dye decomposition [9][10][11]. Wu et al have reported that the BiFeO3 nanoparticles can decompose ~ 99 % Rhodamine B (RhB) dye after 85 cold-hot cycles [9].…”

Section: Introductionmentioning

confidence: 99%

“…Wu et al have reported that the BiFeO3 nanoparticles can decompose ~ 99 % Rhodamine B (RhB) dye after 85 cold-hot cycles [9]. Xu et al have realized the decomposition ratio of ~ 99 % for RhB dye after 50 cold-hot cycles with Ba0.7Sr0.3TiO3@1.5%Ag nanoparticles [10]. You et al have reported a decomposition ratio of RhB dye up to ~ 86.5 % after 80 mins with NaNbO3 nanofibers in response to vibration together with cold-hot cycles [11].…”

Section: Introductionmentioning

confidence: 99%

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The Enhanced Pyrocatalysis of the Pyroelectric BiFeO3/g-C3N4 Heterostructure for Dye Decomposition Driven by Cold-hot Temperature Alternation

Chen

Yao

et al. 2020

Preprint

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The BiFeO3/g-C3N4 heterostructure, which is fabricated via a simple mixing-calcining method, benefits the significant enhancement of the pyrocatalytic performance. With the growth of the g-C3N4 content in the heterostructure pyrocatalysts from 0 to 25 %, the decomposition ratio of Rhodamine B (RhB) dye after 18 cold-hot temperature fluctuation (25 oC - 65 oC) cycles increases at first and then decreases, reaching a maximum value of ~ 94.2 % at 10% while that of the pure BiFeO 3 is ~ 67.7 %. The enhanced dye decomposition may be due to the fabrication of the heterostructure which strengthens the separation of the positive and negative carriers and further accelerates their migration. The intermediate products in the pyrocatalytic reaction also have been detected and confirmed, which proves the key role of the pyroelectric effect in realizing the dye decomposition using BiFeO3/g-C3N4 heterostructure catalyst. The pyroelectric BiFeO3/g-C3N4 heterostructure shows the potential application in pyrocatalytically degrading dye wastewater.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Enhanced Pyrocatalysis of the Pyroelectric BiFeO3/g-C3N4 Heterostructure for Dye Decomposition Driven by Cold-hot Temperature Alternation

Chen

Yao

et al. 2020

Preprint

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“…Similar to the photocatalysis, pyroelectrocatalytic process can produce positive and negative charges by using pyroelectric materials as the active media during temperature variation. The energy generated through such a process has been applied to some catalytic process such as dye decomposition [14][15][16] and water splitting 17,18 . Theoretical calculation shows that a pyroelectric engine in an ideal condition can reach an energy conversion e ciency as high as 84-92%, which is much higher than the photovoltaic energy conversion e ciency typically in the range of 20% 19,20 .…”

Section: Introductionmentioning

confidence: 99%

Pyroelectrocatalytic CO2 reduction for methanol driven by temperature-variation

Xiao¹,

Xu²,

Jia³

et al. 2020

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Taking the advantages of pyroelectric nanostructured materials, we use the temperature-variation, a ubiquitous phenomenon in our daily life, to reduce carbon dioxide (CO2) for methanol through pyroelectrocatalytic process. Layered-perovskite bismuth tungstate nanoplates harvest heat energy from temperature-variation, driving pyroelectrocatalytic CO2 reduction for methanol at temperatures between 15 °C and 70 °C. The methanol yield can be as high as 55.0 µmol·g−1 after experiencing 20 cycles of temperature-variation. This efficient, cost-effective, and environmental-friendly pyroelectrocatalytic CO2 reduction route provides a new thought towards utilizing natural diurnal temperature-variation for future methanol economy.

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“…Recently, pyrocatalysis becomes increasingly popular in the dye decomposition [8][9][10]. Wu et al have reported that the BiFeO3 nanoparticles can decompose ~ 99 % Rhodamine B (RhB) dye after 85 cold-hot cycles [8].…”

Section: Introductionmentioning

confidence: 99%

“…Wu et al have reported that the BiFeO3 nanoparticles can decompose ~ 99 % Rhodamine B (RhB) dye after 85 cold-hot cycles [8]. Xu et al have realized the decomposition ratio of ~ 99 % for RhB dye after 50 cold-hot cycles with Ba0.7Sr0.3TiO3@1.5%Ag nanoparticles [9]. You et al have reported a decomposition ratio of RhB dye up to ~ 86.5 % after 80 min with NaNbO3 nanofibers in response to vibration together with cold-hot cycles [10].…”

Section: Introductionmentioning

confidence: 99%

The enhanced pyrocatalysis of the pyroelectric BiFeO3/g-C3N4 heterostructure for dye decomposition driven by cold-hot temperature alternation

Chen

Yao

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

The BiFeO3/g-C3N4 heterostructure, which is fabricated via a simple mixing-calcining method, benefits the significant enhancement of the pyrocatalytic performance. With the growth of g-C3N4 content in the heterostructure pyrocatalysts from 0 to 25 %, the decomposition ratio of Rhodamine B (RhB) dye after 18 cold-hot temperature fluctuation (25 oC - 65 oC) cycles increases at first and then decreases, reaching a maximum value of ~ 94.2 % at 10 % while that of the pure BiFeO3 is ~ 67.7 %. The enhanced dye decomposition may be due to the generation of the internal electric field which strengthens the separation of the positive and negative carriers and further accelerates their migrations. The intermediate products in the pyrocatalytic reaction also have been detected and confirmed, which proves the key role of the pyroelectric effect in realizing the dye decomposition using BiFeO3/g-C3N4 heterostructure catalyst. The pyroelectric BiFeO3/g-C3N4 heterostructure shows the potential application in pyrocatalytically degrading dye wastewater.

show abstract

Strong pyro-electro-chemical coupling of Ba0.7Sr0.3TiO3@Ag pyroelectric nanoparticles for room-temperature pyrocatalysis

Cited by 108 publications

References 42 publications

The Enhanced Pyrocatalysis of the Pyroelectric BiFeO3/g-C3N4 Heterostructure for Dye Decomposition Driven by Cold-hot Temperature Alternation

The Enhanced Pyrocatalysis of the Pyroelectric BiFeO3/g-C3N4 Heterostructure for Dye Decomposition Driven by Cold-hot Temperature Alternation

Pyroelectrocatalytic CO2 reduction for methanol driven by temperature-variation

The enhanced pyrocatalysis of the pyroelectric BiFeO3/g-C3N4 heterostructure for dye decomposition driven by cold-hot temperature alternation

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