A Novel 3DOM TiO<sub>2</sub> Based Multifunctional Photocatalytic and Catalytic Platform for Energy Regeneration and Pollutants Degradation

Ding, Yang; Huang, Lina; Barakat, Tarek; Su, Bao‐Lian

doi:10.1002/admi.202001879

Cited by 31 publications

(14 citation statements)

References 49 publications

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“…Evidently, the simulated result coincides well with the detected XRD profile, which directly proves that the developed nanoparticles have pure tetragonal phase. Additionally, the reliability factors of R wp , R p , and χ 2 are 3.14%, 1.89%, and 3.29, respectively, and the lattice parameters of the BiOF:Er 3+ /0.04Yb 3+ nanoparticles are demonstrated to be around a = 3.7539 Å, b = 3.7539 Å, c = 6.2348 Å, and V = 87.860 Å 3 . It is clear that these obtained lattice parameters are smaller than those of the BiOF (a = 3.756 Å, b = 3.756 Å, c = 6.234 Å, V = 87.946 Å 3 ; JCPDS#86-1648) owing to the various ionic radii among the Er 3+ , Yb 3+ , and Bi 3+ ions.…”

Section: Resultsmentioning

confidence: 95%

Facile Realization of Boosted Near‐Infrared‐Visible Light Driven Photocatalytic Activities of BiOF Nanoparticles through Simultaneously Exploiting Doping and Upconversion Strategy

Ran

Wang

et al. 2021

Adv Materials Inter

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In spite of this, one of the unavoidable issues of photocatalysis is how to take advantage of solar energy efficiently. As we know, the sunlight can be roughly divided into three parts, that is, ultraviolet, visible and near-infrared (NIR) light, in which they take around 5%, 45%, and 50% energy of the sunlight, respectively. [6,7] To date, these widely used photocatalysts, such as ZnO, WO 3 , and TiO 2 , suffer from narrow absorption edge, where the energy originating from visible and NIR light is wasted, resulting in dissatisfied photocatalytic properties. [8][9][10] In order to tackle this shortage, researchers tried to find out other semiconductors and some nano-sized compounds, such as CaAl 5 Fe 7 O 19 , ZnS-CdS, and SiO 2 -TiO 2 , which were promising candidates for photocatalytic and antibacterial applications, were proposed. [11][12][13][14] Thereby, searching for novel semiconductors is a facile and efficient route to develop highly efficient photocatalytic materials.Over the last decades, considerable attention has been attracted in bismuth containing semiconductors since they exhibit promising applications in photocatalysis owing to their superiorities including high stability, suitable energy band gap (i.e., E g ), and nontoxicity. [15,16] Shi et al. reported that the Bi 5 OI 7 and BiO 5 I 2 semiconductors with admirable photocatalytic activities can utilize both ultraviolet and visible lights. [17] As a member of bismuth containing semiconductors, the investigation on the photocatalytic properties of BiOX (X = F, Cl, Br, and I), which displays unique matlockite structure with [XBiOOBiX] layers, has been intensively performed. [18,19] Particularly, with the help of weak nonbonding van der Waals interaction along the c-axis, [Bi 2 O 2 ] 2+ slabs with positive valence are interleaved by means of two halide ions, leading to the production of internal electric field along the caxis. [18] Note that, the occurrence of the internal electric field enables the separation of electron-hole pairs more efficiently which gives rise to admirable photocatalytic behaviors of BiOX. At present, it has been revealed that the BiOX compounds can capture both ultraviolet and visible lights to photodegrade pollutants (i.e., RhB, methyl orange). [20,21] Nevertheless, these currently developed BiOX photocatalysts still own some deficiencies, such as the harvest of NIR light is insufficient and A facile strategy is put forward to improve the photocatalytic activity of BiOF nanoparticles by simultaneously exploiting doping and upconversion engineering. The Er 3+ /Yb 3+ -codoped BiOF nanoparticles are synthesized via using high-temperature solid-state reaction route. Through employing firstprinciples density functional theory, one knows that the electronic structure of BiOF host is greatly impacted by Er 3+ and Yb 3+ ions doping. Excited by 980 nm, bright upconversion emissions are seen in prepared compounds and their maximum intensities are obtained when x = 0.04. Furthermore, the photocatalytic capacity of the designed n...

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Section: Resultsmentioning

confidence: 95%

Facile Realization of Boosted Near‐Infrared‐Visible Light Driven Photocatalytic Activities of BiOF Nanoparticles through Simultaneously Exploiting Doping and Upconversion Strategy

Ran

Wang

et al. 2021

Adv Materials Inter

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“…utilization of light. Therefore, 3D TMOPCs can be used to enhance the degradation of the insecticide, [110] the organic compounds in water, such as rhodamine B (Rh B) (Figure 9a) [111,112] and acidorange7 (AO7, 20 mg L À1 ), [113] organic solvents, such as isopropanol (Figure 9b) [114] and acetaldehyde, [115] and reduce CO 2 to solar fuel. [44] Compared with a single TMO, TMOPC not only provides a larger specific surface area, but also has a certain role in enriching reactants, while improving the utilization of light and further improving the photocatalytic efficiency.…”

Section: Photocatalystmentioning

confidence: 99%

Recent Advances in Preparation and Applications of 3D Transition Metal Oxides Semiconductor Photonic Crystal

Yan

Meng

Qiu

et al. 2021

Advanced Photonics Research

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Nanostructured transition metal oxides (TMOs) semiconductor materials, whose photoelectric properties are significantly improved due to their nanostructures, have attracted more and more attention in recent years. As a functional material with periodic nanostructures and unique optical properties, photonic crystals (PhCs) have become an important option for nanostructuring semiconductor materials. The TMO semiconductor PhC (TMOPC), which is integrated by combining TMO with PhC, not only has the sensitivity of the TMO semiconductor to environmental stimulus, but also can improve the utilization rate of light and make the material have the optical response due to the optical modulation of PhC, such as slow light effect. The application of TMOPCs is widely promoted and expanded due to the improvement of its performance. Herein, this review summarizes the preparation methods of 3D TMOPCs in recent years and their main applications. The limitation and potential development of 3D TMOPCs in preparation and application are also discussed and prospected.

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“…[2][3][4][5] Photocatalysis has been regarded as an efficient technology for the storage of light energy in chemical bonds via various photoinduced reactions, including water splitting, pollutants decomposition, CO 2 conversion, H 2 O 2 production, valued organics synthesis, and so on. [6][7][8][9][10] Generally, four main processes are involved in these photocatalytic reactions. First, light absorption occurs when the photo energy is larger than the band gap of the semiconductor.…”

Section: Introductionmentioning

confidence: 99%

Vacancy defect engineering in semiconductors for solar light‐driven environmental remediation and sustainable energy production

Ding

Maitra

Wang

et al. 2022

Interdisciplinary Materials

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The introduction of vacancy defects in semiconductors has been proven to be a highly effective approach to improve their photocatalytic activity owing to their advantages of promoting light absorption, facilitating photogenerated carrier separation, optimizing electronic structure, and enabling the production of reactive radicals. Herein, we outline the state-of-the-art vacancy-engineered photocatalysts in various applications and reveal how the vacancies influence photocatalytic performance. Specifically, the types of vacancy defects, the methods for tailoring vacancies, the advanced characterization techniques, the categories of photocatalysts with vacancy defects, and the corresponding photocatalytic behaviors are presented. Meanwhile, the methods of vacancies creation and the related photocatalytic performance are correlated, which can be very useful to guide the readers to quickly obtain indepth knowledge and to have a good idea about the selection of defect engineering methods. The precise characterization of vacancy defects is highly challenging. This review describes the accurate use of a series of characterization techniques with detailed comments and suggestions. This represents the uniqueness of this comprehensive review. The challenges and development prospects in engineering photocatalysts with vacancy defects for practical applications are discussed to provide a promising research direction in this field.

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A Novel 3DOM TiO₂ Based Multifunctional Photocatalytic and Catalytic Platform for Energy Regeneration and Pollutants Degradation

Cited by 31 publications

References 49 publications

Facile Realization of Boosted Near‐Infrared‐Visible Light Driven Photocatalytic Activities of BiOF Nanoparticles through Simultaneously Exploiting Doping and Upconversion Strategy

Facile Realization of Boosted Near‐Infrared‐Visible Light Driven Photocatalytic Activities of BiOF Nanoparticles through Simultaneously Exploiting Doping and Upconversion Strategy

Recent Advances in Preparation and Applications of 3D Transition Metal Oxides Semiconductor Photonic Crystal

Vacancy defect engineering in semiconductors for solar light‐driven environmental remediation and sustainable energy production

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A Novel 3DOM TiO2 Based Multifunctional Photocatalytic and Catalytic Platform for Energy Regeneration and Pollutants Degradation

Cited by 31 publications

References 49 publications

Facile Realization of Boosted Near‐Infrared‐Visible Light Driven Photocatalytic Activities of BiOF Nanoparticles through Simultaneously Exploiting Doping and Upconversion Strategy

Facile Realization of Boosted Near‐Infrared‐Visible Light Driven Photocatalytic Activities of BiOF Nanoparticles through Simultaneously Exploiting Doping and Upconversion Strategy

Recent Advances in Preparation and Applications of 3D Transition Metal Oxides Semiconductor Photonic Crystal

Vacancy defect engineering in semiconductors for solar light‐driven environmental remediation and sustainable energy production

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A Novel 3DOM TiO₂ Based Multifunctional Photocatalytic and Catalytic Platform for Energy Regeneration and Pollutants Degradation