Band gap engineered TiO<sub>2</sub>nanoparticles for visible light induced photoelectrochemical and photocatalytic studies

Khan, Mohammad Mansoob; Pradhan, Debabrata; Ansari, Sajid Ali; Han, Do Hung; Lee, Jintae; Cho, Moo Hwan

doi:10.1039/c3ta14052k

Cited by 774 publications

(454 citation statements)

References 43 publications

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“…Our BET results show that the specific surface area increased from (101), (004) and (200) [10]. Other studies also reported the absence of Ti-N crystal peak in the XRD patterns for their N-doped TiO 2 particles [7,8,18,19].…”

Section: Synthesis and Characterisation Of The Ntk Catalystssupporting

confidence: 55%

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Hybridising nitrogen doped titania with kaolinite: A feasible catalyst for a semi-continuous photo-degradation reactor system

Sia

Dai

Jin

et al. 2015

Chemical Engineering Journal

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Citation: SIA, T.H. et al., 2015. Hybridising nitrogen doped titania with kaolinite: a feasible catalyst for a semi-continuous photo-degradation reactor system. Chemical Engineering Journal, 279, Additional Information:• This paper was accepted for publication in the journal Chemical En- AbstractThe application of TiO 2 catalyst for an industrial water treatment process is still limited due to its poor reusability, low oxidation efficiency and UV light use. Taking these challenges as the objective of this study, we integrated particle impregnation with nitrogen-doping methods to hybrid nitrogen doped TiO 2 nanoparticles with kaolinite (NTK) as the photocatalyst for water treatment. SEM/TEM, XPS and XRD results revealed that the doped nitrogen in the NTK particle inclined toward interstitial, and the TiO 2 nanocrystals were hybridized into the layered kaolinite minerals. Kaolinite was found to be an excellent TiO 2 nanocatalyst supporter, providing promising adsorption transitions to not only sensitize TiO 2 nanocrystals, but also enhance their photocatalytic oxidation capacity and recoverability. Kinetic studiesshowed that the NTK catalysts demonstrated a superior interfacial oxidation and photocatalytic degradation ability under visible light irradiation. Importantly, the NTK catalysts could be easily recovered for reuse with stable photo-degradation performance in a semi-continuous photoreactor process. The high degradation capacity, reusability and visible light accessibility of the NTK catalysts make the NTK-catalysed technology promising for industrial applications.

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Section: Synthesis and Characterisation Of The Ntk Catalystssupporting

confidence: 55%

“…have been conducted to immobilize or impregnate TiO 2 particles into inert materials as the support carries such as clay [8,9], silica beads [5] and polymers [10]. These TiO 2 immobilized hybrids can be synthesised by sol-gel [9,11], electrochemical deposition or vapour deposition methods [12,13].…”

Section: Introductionmentioning

confidence: 99%

Hybridising nitrogen doped titania with kaolinite: A feasible catalyst for a semi-continuous photo-degradation reactor system

Sia

Dai

Jin

et al. 2015

Chemical Engineering Journal

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“…Photocatalysis is an alternative since it allows their rapid and efficient removal from water, transforming them into by-products with lower toxicity [5,6]. Among several semiconductor materials, titanium dioxide (TiO 2 ) has a band gap of ~3.10 eV [8,9], which make it a suitable photocatalyst for the degradation of organic pollutants because of its low cost, unique optical properties, and availability [10].…”

Section: Introductionmentioning

confidence: 99%

Orthogonal experimental design of titanium dioxide—Poly(methyl methacrylate) electrospun nanocomposite membranes for photocatalytic applications

Vild

Teixeira

Kühn

et al. 2016

Journal of Environmental Chemical Engineering

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“…Para facilitar esse processo, adiciona-se na superfície do semicondutor, o corante, com a finalidade de melhorar suas propriedades fotovoltaicas, processo conhecido como método de sensibilização. [43][44][45][46][47] …”

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Titanium dioxide application in solar cells

Vitoreti¹,

Pena²,

Vaz³

et al. 2017

Rev. Virtual Quim.

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Abstract:Extensive research has been performed in solar cells field, due the fact that the main current energy sources are derived from finite fossil fuels, and cause environmental problems. In this perspective the sun can be seen as the energy future of the planet, being the most abundant renewable energy source. The solar cell basic operation is based on the semiconductors ability in converting sunlight into electricity when exposed to sun radiation. A semiconductor that has been highlighted in solar cells application is titanium dioxide (TiO 2 ), due to its intrinsic properties, such as a wide bandgap, transparence to visible light, photostability, a low cost material, and others. Among the main types of solar cells applying TiO 2 are the dye-and the quantum dots-sensitized solar cells, and perovskites cells. In this review the main aspects related to synthesis, textural and morphological properties of TiO 2 of interest for application in solar cells are discussed.Keywords: Titanium dioxide; semiconductor; solar cells. ResumoExtensivas pesquisas têm sido desenvolvidas com células solares (CSs), uma vez que as principais fontes de produção de energia atuais são derivadas de combustíveis fósseis finitos e que causam problemas ambientais. Nesta perspectiva, o sol pode ser visto como o futuro energético do planeta, sendo a fonte de energia renovável mais abundante. O funcionamento básico de uma CS se baseia na habilidade em que os semicondutores apresentam de converter a luz solar em eletricidade, quando expostos à radiação solar. Um dos semicondutores que têm se destacado em CSs é o dióxido de titânio (TiO 2 ), devido às suas propriedades intrínsecas, como uma larga banda proibida, transparência à luz visível, fotoestabilidade, baixo custo, dentre outras. Dentre os principais tipos de CSs que utilizam TiO 2 , estão as CSs sensibilizadas por corantes, por pontos quânticos e as de perovsquitas. Nesta revisão os principais aspectos relacionados à síntese, propriedades texturais e morfológicas do TiO 2 de interesse para aplicação em CSs são discutidos.

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Band gap engineered TiO₂nanoparticles for visible light induced photoelectrochemical and photocatalytic studies

Cited by 774 publications

References 43 publications

Hybridising nitrogen doped titania with kaolinite: A feasible catalyst for a semi-continuous photo-degradation reactor system

Hybridising nitrogen doped titania with kaolinite: A feasible catalyst for a semi-continuous photo-degradation reactor system

Orthogonal experimental design of titanium dioxide—Poly(methyl methacrylate) electrospun nanocomposite membranes for photocatalytic applications

Titanium dioxide application in solar cells

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Band gap engineered TiO2nanoparticles for visible light induced photoelectrochemical and photocatalytic studies

Cited by 774 publications

References 43 publications

Hybridising nitrogen doped titania with kaolinite: A feasible catalyst for a semi-continuous photo-degradation reactor system

Hybridising nitrogen doped titania with kaolinite: A feasible catalyst for a semi-continuous photo-degradation reactor system

Orthogonal experimental design of titanium dioxide—Poly(methyl methacrylate) electrospun nanocomposite membranes for photocatalytic applications

Titanium dioxide application in solar cells

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Band gap engineered TiO₂nanoparticles for visible light induced photoelectrochemical and photocatalytic studies