Impact of ferroelectricity on the photodegradation of charged dye species: significance of polarity match

He, Yiqing; Ji, Muwei; Hu, Yanyan; Yang, Qinghua; Yan, Changxu; Chen, Yuxiong; Chang, Shengding; Li, Bo; Wang, Jin

doi:10.1039/c8tc01081a

Cited by 11 publications

(4 citation statements)

References 22 publications

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“…[ 174 , 175 ] The continuousness of electric dipole–dipole interactions in surface chemistry makes ferroelectrics promising for photocatalysis. [ 47 , 176 , 177 ] He et al [ 178 ] reported substantial photocatalytic methyl orange (MO) and RhB degradations by using BaTiO 3 nanoparticles synthesized with surfactant (BTO‐1) measured in the temperature range of 30 °C to 80 °C ( Figure 38 a,b ). As shown in Figure 38c , the reaction involves the charge separation and preferential adsorption of charged dye species in the aqueous solution on the polar surfaces of BaTiO 3 particles.…”

Section: Emerging Energy and Environmental Applicationsmentioning

confidence: 99%

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Engineering the Defects and Microstructures in Ferroelectrics for Enhanced/Novel Properties: An Emerging Way to Cope with Energy Crisis and Environmental Pollution

et al. 2022

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In the past century, ferroelectrics are well known in electroceramics and microelectronics for their unique ferroelectric, piezoelectric, pyroelectric, and photovoltaic effects. Nowadays, the advances in understanding and tuning of these properties have greatly promoted a broader application potential especially in energy and environmental fields, by harvesting solar, mechanical, and heat energies. For example, high piezoelectricity and high pyroelectricity can be designed by defect or microstructure engineering for piezo‐ and pyro‐catalyst, respectively. Moreover, highly piezoelectric and broadband (UV–Vis–NIR) light‐responsive ferroelectrics can be designed via defect engineering, giving rise to a new concept of photoferroelectrics for efficient photocatalysis, piezocatalysis, pyrocatalysis, and related cocatalysis. This article first summarizes the recent developments in ferroelectrics in terms of piezoelectricity, pyroelectricity, and photovoltaic effects based on defect and microstructure engineering. Then, the potential applications in energy generation (i.e., photovoltaic effect, H2 generation, and self‐powered multisource energy harvesting and signal sensing) and environmental protection (i.e., photo‐piezo‐pyro‐ cocatalytic dye degradation and CO2 reduction) are reviewed. Finally, the outlook and challenges are discussed. This article not only covers an overview of the state‐of‐art advances of ferroelectrics, but also prospects their applications in coping with energy crisis and environmental pollution.

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Section: Emerging Energy and Environmental Applicationsmentioning

confidence: 99%

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confidence: 99%

Engineering the Defects and Microstructures in Ferroelectrics for Enhanced/Novel Properties: An Emerging Way to Cope with Energy Crisis and Environmental Pollution

et al. 2022

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“…The synthesis of BaTiO 3 was carried out by a simple sol-gel method with slight modification from the previous report. 23 An appropriate amount of BaCl 2 .2H 2 O was dissolved in H 2 O (solution A), to which, 2.5 M of aqueous KOH was added and stirred for 30 minutes. Separately, equal mole of titanium tetra isopropoxide was dissolved in ethanol (solution B) and stirred for 30 minutes.…”

Section: Preparation Of Batio 3 Nanoparticlesmentioning

confidence: 99%

Hoisting the photovoltaic performance by photocharging and plasmonic effect via aminosilane‐protected silver/barium titanate for dye‐sensitized solar cells

Devi

Bhojanaa

Pavithra

et al. 2022

Intl J of Energy Research

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Recently, oxide perovskites coupled with plasmonic metal nanoparticles have focused on improving the efficiency of dye-sensitized solar cells. However, the corrosion of metal nanoparticles with electrolyte hinders the practical applications. The combination of oxide perovskites with plasmonic metal nanoparticles shielded by amino silicates will provide an alternate solution to the existing difficulties. In that note, BaTiO 3 nanoparticles are synthesized using sol-gel method and designated as BTO, followed by mixing up with different aminosilicates bounded Ag nanoparticles by photochemical reduction method and used as a photoanode for DSSC. The observed results clearly confirms the increase in the number of amino groups from silanes tends show the decrease in the band gap with increment in the V OC is due to upward shift of conduction band edge. The enhanced photovoltaic performance has been exhibited by APTMS-bounded Ag/BTO (AMBTO) is due to the presence of mono amine group in silicate, that helps in effective binding of Ag as well as the presence of -O-Si-O-prevents the corrosion of Ag from the electrolyte. This leads to increase in photocurrent of AMBTO-based photoanode of DSSC on measuring its photovoltaic performance under full sunlight illumination (100 mW cm À2 , AM 1.5 G). The maximum obtained J SC , V OC , FF, and power conversion efficiency offered by AMBTO were 13.43 mA cm À2 , 0.77 V, 57.2%, and 5.88%, respectively. About 39% improvement has been observed in AMBTO compared to BTO photoanode-based DSSC. Thus, AMBTO can be considered as a potential candidate for the photovoltaic applications.

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“…Moreover, combining ferroelectric perovskite materials with other semiconductor photocatalysts is an effective approach for facilitating separation of photogenerated charge carriers and immensely improves the efficiency of the photocatalysis process. [35][36][37] A few reports were found on ferroelectric-based perovskite materials combined with semiconductor photocatalysts to improve their photocatalytic character; for example, ferroelectric tetragonal-phase BaTiO 3 /BiOI showed an excellent photocatalytic character compared to non-ferroelectric cubic-phase BaTiO 3 /BiOI and pure BiOI. 38 Similarly, Shen et al found that the photocatalytic activity of ferroelectric Ba 0.8 Sr 0.2 TiO 3 was improved when coupled with BiOBr due to the internal electric field of ferroelectric Ba 0.8 Sr 0.2 TiO 3 , enabling effective charge-carrier separation.…”

Section: Introductionmentioning

confidence: 99%

Efficient degradation of endocrine-disrupting compounds by heterostructured perovskite photocatalysts and its correlation with their ferroelectricity

Subramanian

Mishra

et al. 2022

New J. Chem.

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Impact of ferroelectricity on the photodegradation of charged dye species: significance of polarity match

Abstract: Polarization of BaTiO3 nanocrystals results in preferential adsorption of charged dye species at the polar surface, and either positive or negative impact on photodegradation can be expected.

Cited by 11 publications

References 22 publications

Engineering the Defects and Microstructures in Ferroelectrics for Enhanced/Novel Properties: An Emerging Way to Cope with Energy Crisis and Environmental Pollution

Engineering the Defects and Microstructures in Ferroelectrics for Enhanced/Novel Properties: An Emerging Way to Cope with Energy Crisis and Environmental Pollution

Hoisting the photovoltaic performance by photocharging and plasmonic effect via aminosilane‐protected silver/barium titanate for dye‐sensitized solar cells

Efficient degradation of endocrine-disrupting compounds by heterostructured perovskite photocatalysts and its correlation with their ferroelectricity

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