Nanostructured Bi(1−x)Gd(x)FeO3 – a multiferroic photocatalyst on its sunlight driven photocatalytic activity

Sakar, M.; Balakumar, S.; Bhaumik, Indranil; Gupta, Pradeep Kumar; Jaisankar, Sellamuthu N.

doi:10.1039/c4ra00137k

Cited by 74 publications

(30 citation statements)

References 62 publications

(38 reference statements)

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“…In this section, we will look into the details of fabrication methods, size effects and properties of nanostructured BFO materials. 17,30,46,53,143,466,472,482,486,504,505,516,519,528,534, Sol-gel, 53,505,680,686,693,695,699,700,702,704,705,710,711,[713][714][715]717,719,720 PLD, 516,[656][657][658][659][660][661] Hydrothermal, 670,703,706 Sonochemical, 687 Co-precipitation, 694 Electrospinning, 697 Self-combustion, 698 Solution combustion, 486,…”

Section: Nanostructuresmentioning

confidence: 99%

Multiferroic bismuth ferrite-based materials for multifunctional applications: Ceramic bulks, thin films and nanostructures

Fan

Xiao

et al. 2016

Progress in Materials Science

516

176

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Among the different types of multiferroic compounds, bismuth ferrite (BiFeO 3 ; BFO) stands out because it is perhaps the only one being simultaneously magnetic and strongly ferroelectric at room temperature. Therefore, in the past decade or more, extensive research has been devoted to BFO-based materials in a variety of different forms, including ceramic bulks, thin films and nanostructures. Ceramic bulk BFO and their solid solutions with other oxide perovskite compounds show excellent ferroelectric and piezoelectric properties and are thus promising candidates for lead-free ferroelectric and piezoelectric devices. BFO thin films, on the other hand, exhibit versatile structures and many intriguing properties, particularly the robust ferroelectricity, the inherent magnetoelectric coupling, and the emerging photovoltaic effects. BFO-based nanostructures are of great interest owing to their size effect-induced structural modification and enhancement in various functional behaviors, such as magnetic and photocatalytic properties. Although to date several

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Section: Nanostructuresmentioning

confidence: 99%

Multiferroic bismuth ferrite-based materials for multifunctional applications: Ceramic bulks, thin films and nanostructures

Fan

Xiao

et al. 2016

Progress in Materials Science

516

176

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“…Doping of BFO nanoparticle especially with RE elements shows significant improvement on the photocatalytic properties of the material, this made possible the photogeneration of eÀ h þ pairs due to the special 4f electron configurations of the elements (Mohan et al, 2014;Pei and Zhang, 2013;Wu et al, 2012). Co-doping of BFO with Sr, Ba, Ca, Na, K, have also been used to improve the photoactivity and visible light response of the material compared to the bulk BFO material.…”

Section: Progress In the Effect Of Doping Of Bfo Nanoparticlementioning

confidence: 99%

“…Doping is one most important way to efficiently enhance the photocatalytic performance of BFO and other related materials especially with the rare-earth (RE) elements. The RE elements can facilitate the abruption of photogenerated electron-hole (eÀ h þ ) pairs because of their special 4f electron configurations (Wu et al, 2012;Pei and Zhang, 2013;Mohan et al, 2014). Some other inherent activities of photocatalyst include the transport of eÀ h þ pairs, and efficient separation of photo-induced charge carriers (Niu et al, 2015b).…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic activity and doping effects of BiFeO3 nanoparticles in model organic dyes

Haruna

Abdulkadir

Idris

2020

Heliyon

129

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The studies of advanced materials in environmental remediation and degradation of pollutants is rapidly advancing because of their wide varieties of applications. BiFeO 3 (BFO), a perovskite nanomaterial with a rhombohedral R3c space group, is currently receiving tremendous attention in photodegradation of dyes. The photocatalytic activity of BFO nanoparticle is a promising field of research in photocatalysis. BFO nanomaterial is a photocatalyst enhanced by doping because of its reduce bandgap energy (2.0-2.77 eV), multiferroic property, strong photoabsorption and crystal structure. The material has proven to be very useful for the degradation of dyes under visible light irradiation among other photocatalysts. Its exceptional nontoxicity, suitability, low cost and long term excellent stability makes it an efficient photocatalyst for the degradation of effluents from textile and pharmaceutical industries which ended-up in the environment and now a major concern of the modern world. This mini-review attempts to provide some detailed synthetic routes of BFO and BFO related nanomaterials and the notable achievements so far on the effect of doping the material. It also discusses the effect of crystallite size of the material and other photophysical properties and how they influence the photocatalytic process of model organic dye pollutants, to date.

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“…The photocatalytic properties of ferroelectrics and polar materials have also attracted signicant attention in the scientic community [41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60]. As far back as 1986, Inoue et al studied photoassisted water decomposition on lead zirconate titanate (PZT) ceramics.…”

Section: Introductionmentioning

confidence: 99%

Ferroelectrics: A pathway to switchable surface chemistry and catalysis

2016

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It has been known for more than six decades that ferroelectricity can aect a material's surface physics and chemistry thereby potentially enhancing its catalytic properties. Ferroelectrics are a class of materials with a switchable electrical polarization that can aect surface stoichiometry and electronic structure and thus adsorption energies and modes; e.g., molecular versus dissociative. Therefore, ferroelectrics may be utilized to achieve switchable surface chemistry whereby surface properties are not xed but can be dynamically controlled by, for example, applying an external electric eld or modulating the temperature. Several important examples of applications of ferroelectric and polar materials in photocatalysis and heterogeneous catalysis are discussed. In photocatalysis, the polarization direction can control band bending at water/ferroelectric and ferroelectric/semiconductor interfaces, thereby facilitating charge separation and transfer to the electrolyte and enhancing photocatalytic activity. For gas-surface interactions, available results suggest that using ferroelectrics as supports for catalytically active transition metals and oxides is another way to enhance catalytic activity. Finally, the possibility of incorporating ferroelectric switching into the catalytic cycle itself is described. In this scenario, a dynamic collaboration of two polarization states can be used to drive reactions that have been historically challenging to achieve on surfaces with xed chemical properties (e.g., direct NO x decomposition and the selective partial oxidation of methane). These predictions show that dynamic modulation of the polarization can help overcome some of the fundamental limitations on catalytic activity imposed by the Sabatier principle.

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Nanostructured Bi_(1−x)Gd_(x)FeO₃ – a multiferroic photocatalyst on its sunlight driven photocatalytic activity

Abstract: We report the manifestation of sunlight driven photocatalytic activity in the nanostructured Gd substituted bismuth ferrite (BiFeO3) multiferroic photocatalyst.

Cited by 74 publications

References 62 publications

Multiferroic bismuth ferrite-based materials for multifunctional applications: Ceramic bulks, thin films and nanostructures

Multiferroic bismuth ferrite-based materials for multifunctional applications: Ceramic bulks, thin films and nanostructures

Photocatalytic activity and doping effects of BiFeO3 nanoparticles in model organic dyes

Ferroelectrics: A pathway to switchable surface chemistry and catalysis

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