Photocatalytic semiconductor thin films for hydrogen production and environmental applications

Shwetharani, R.; Chandan, H.R.; Sakar, M.; Balakrishna, R. Geetha; Reddy, Kakarla Raghava; Raghu, Anjanapura V.

doi:10.1016/j.ijhydene.2019.03.149

Cited by 112 publications

(31 citation statements)

References 103 publications

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“…A deeper examination foreseen that the broad DEB can be the superimposition of various emissions including violet, blue, green and orange-red emission representing different types of defects in the electrospun ZnO structures. [44][45][46][47][48][49][50][51][52] The defects are expected to act as charge traps in the nanostructured sample and they are strongly associated with the nature of the defect center. Although tremendous efforts have been shed light on the correlation between the structure and energetic center of these defects, still their precise emission nature at room temperature remains under dispute.…”

Section: Investigations On Structure-photoluminescence Property Corrementioning

confidence: 99%

“…Overall, the predicted energetic location of each center is well agreed with theoretical calculations and various experimental results available in the literature so far. [44][45][46][47][48][49][50][51][52] The detailed investigation predicted that the variations in the relative intensity of ZB to ZST might be ascribed to the presence of radiative defects at the interface of the grains in the ZnO. The relative areas of each emission for all samples have been calculated and plotted in Figure 5h.…”

Section: Investigations On Structure-photoluminescence Property Corrementioning

confidence: 99%

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General Strategy for Fabrication of Ordered One Dimensional Inorganic Structures by Electrospinning: Structural Evolution From Belt to Solid via Hollow Tubes

et al. 2021

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Increasing profound interest in methods to fabricate complex hollow superstructures in terms of shell architecture is highly desirable for the realization of various functionalities. Recent efforts in this direction have strongly suggested that unlike other hollow structures, tubular structures do not have well-developed nanostructure library, and establishing a general method remains a significant challenge. Hollowstructured metal oxides have emerged as one of the most propitious functional materials by virtue of their hollow interior, shell composition, internal structure, low density, high surface area, and fast diffusion ability. [1][2][3][4] These solitary and exceptional characteristics have made them outstand in various fields including catalysis, chemical sensors, adsorption, and energy conversion/storage systems. [5][6][7][8][9][10][11][12] The recent past has significantly seen dimensionally controlled structures to be drawing recognition because of their correlation between the structure and property in surfaceenhanced applications. In this aspect, intensive efforts have taken place to develop diverse approaches for assembling hollow structures to optimize their physicochemical properties for specific applications. Consequently, this has been upheld through varied synthesis routes and numerous hollow structures such as spheres, boxes, and micro/nanotubes have been fabricated. [13,14] To raise the value of appropriate functionalities and exploit the structural advantages in surface-enhanced applications, welldefined shell structures with tunable size, shape, composition, and pores are highly desirable. However, most of the reported hollow structures possess relatively simple configuration which strongly limits their prospects to modulate potential characteristics. This remains as a substantial challenge to structural aspects including the shell thickness, number of internal multishells, porosity, and importantly unsuitable for large-scale synthesis. Among the different methods for preparing the hollow structures, template-assisted synthesis has been recognized as a straightforward method because of the predictability of the resultant shapes originating from the sacrificed templates. [15][16][17][18] Although the templating strategy has enabled the successful preparation of hollow structures; however, it still possess few critical challenges. They include the cost, tedious and timeconsuming coating procedure, nonuniformity of coating, reproducibility, additional steps to remove the template without collapsing the original structure, and scalability. Furthermore, the

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Section: Investigations On Structure-photoluminescence Property Corrementioning

confidence: 99%

Section: Investigations On Structure-photoluminescence Property Corrementioning

confidence: 99%

General Strategy for Fabrication of Ordered One Dimensional Inorganic Structures by Electrospinning: Structural Evolution From Belt to Solid via Hollow Tubes

et al. 2021

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“…No cenário atual, materiais com propriedades ajustáveis e dispositivos flexíveis são essenciais nos estudos de energia e meio ambiente, e a fotocatálise se mostra um processo determinante, principalmente no que diz respeito suas aplicações em escala industrial (SHWETHARANI, et al 2019…”

Section: Filmes Finosunclassified

Deep Learning Para Regressão De Potência Elétrica De Uma Usina De Energia De Ciclo Combinado

Moura¹,

Meneses²

2020

Anais Do XIV Simpósio Brasileiro De Engenharia Física

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Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição 4.0 Internacional (CC BY 4.0). O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais.

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“…Also, they prepared barium titanate nanoparticles by the sol-gel method and investigated its photocatalytic activity. 15 The article by Shwetharani et al 16 discussed the research progress of photocatalytic nano-semiconductor films in preparation, properties, photocatalytic mechanism, and applications. In their article, Jyothi et al 17 discussed the synthesis methods, properties, photocatalytic mechanism, and determinants of non-metal doped hybrid nanometal oxides.…”

Section: Introductionmentioning

confidence: 99%

Two kinds of polyaniline fiber photo sensor with interdigital electrode and flexible hydrogel

Zhang

Tao

Wang

et al. 2021

J of Applied Polymer Sci

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In previous studies, polyaniline nanofiber sensor on interdigital electrode is sensitive to light. Herein, we prepared a flexible hydrogel sensor with polyaniline nanofiber as the active material and polyacrylamide hydrogel as the flexible substrate. Comparing the properties of above two different kinds of sensors with polyaniline nanofiber, the photocurrent generated by PANIhydrogel sensor under external light stimulation is about 1~2 orders of magnitude higher than interdigital electrode sensor, indicating the PANI-hydrogel sensor is more sensitive. The two sensors can all respond to different wavelengths of monochromatic light, especially sensitive to light of smaller wavelengths such as ultraviolet light (380 nm) and blue light (475 nm). Moreover, the volt-ampere characteristic curve in response to external light stimulation can be clearly distinguished only when the appropriate concentration of proton acid is doped (3 g citric acid, 7 g acetic acid, and 3 ml HCl).

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Photocatalytic semiconductor thin films for hydrogen production and environmental applications

Cited by 112 publications

References 103 publications

General Strategy for Fabrication of Ordered One Dimensional Inorganic Structures by Electrospinning: Structural Evolution From Belt to Solid via Hollow Tubes

General Strategy for Fabrication of Ordered One Dimensional Inorganic Structures by Electrospinning: Structural Evolution From Belt to Solid via Hollow Tubes

Deep Learning Para Regressão De Potência Elétrica De Uma Usina De Energia De Ciclo Combinado

Two kinds of polyaniline fiber photo sensor with interdigital electrode and flexible hydrogel

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