Heat Transfer Analysis of a Solar Air Heater Roughened with Chamfered Rib and Groove Roughness on the Absorber Plate Using CFD Approach

Kumar, Amit; Layek, Apurba; Mondal, Partha Kumar

doi:10.1007/978-981-15-0124-1_121

Cited by 4 publications

(2 citation statements)

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“…Since TiO 2 is nontoxic and cost-effective and exhibits high photostability, it serves as an excellent semiconductor material for photocatalysis. 87 However, despite these advantages, TiO 2 has three primary limitations. First, the recombination of charge carriers hinders surface reactions, leading to a low energy conversion efficiency.…”

Section: S-scheme Photocatalyst Systemsmentioning

confidence: 99%

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Nanocomposite Marvels: Unveiling Breakthroughs in Photocatalytic Water Splitting for Enhanced Hydrogen Evolution

Kumar,

Prasad Singh,

Kumar

et al. 2024

ACS Omega

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An overview of the significant innovations in photocatalysts for H 2 development, photocatalyst selection criteria, and photocatalytic modifications to improve the photocatalytic activity was examined in this Review, as well as mechanisms and thermodynamics. A variety of semiconductors have been examined in a structured fashion, such as TiO 2 -, g-C 3 N 4 -, graphene-, sulfide-, oxide-, nitride-, oxysulfide-, oxynitrides, and cocatalyst-based photocatalysts. The techniques for enhancing the compatibility of metals and nonmetals is discussed in order to boost photoactivity within visible light irradiation. In particular, further deliberation has been carried out on the development of heterojunctions, such as type I, type II, and type III, along with Z-systems, and S-scheme systems. It is important to thoroughly investigate these issues in the sense of visible light irradiations to enhance the efficacy of photocatalytic action. In fact, another advancement in this area may include hiring mediators including grapheme oxide and metals to establish indirect Z-scheme montages with a correct band adjustment. The potential consideration of reaction chemology, mass transfer, kinetics of reactions, restriction of light diffusion, and the process and selection of suitable light and photoreactor also will optimize sustainable hydrogen output efficiency and selectivity.

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Section: S-scheme Photocatalyst Systemsmentioning

confidence: 99%

“…Since TiO 2 is nontoxic and cost-effective and exhibits high photostability, it serves as an excellent semiconductor material for photocatalysis . However, despite these advantages, TiO 2 has three primary limitations.…”

Section: Strategies For Improving the Photoactivity Of Photocatalystsmentioning

confidence: 99%