A review and recent advances in solar-to-hydrogen energy conversion based on photocatalytic water splitting over doped-TiO2 nanoparticles

Ismael, Mohammed

doi:10.1016/j.solener.2020.09.073

Cited by 275 publications

(72 citation statements)

References 229 publications

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“…The conversion of solar energy into electrochemical energy as fuel from water splitting has emerged as an efficient and low-cost strategy for clean and renewable energy production. Hydrogen (H 2 ) produced in this photocatalytic process is considered one of the most promising green fuels for the future due to its high energy-per-mass content, zero CO 2 emission, low-cost, operation facility and capability of separating H 2 and O 2 streams [ 245 , 246 , 247 ].…”

Section: Applications Of Tio 2 and Zno Nanostructuresmentioning

confidence: 99%

Green Synthesis and Applications of ZnO and TiO2 Nanostructures

et al. 2021

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Over the last two decades, oxide nanostructures have been continuously evaluated and used in many technological applications. The advancement of the controlled synthesis approach to design desired morphology is a fundamental key to the discipline of material science and nanotechnology. These nanostructures can be prepared via different physical and chemical methods; however, a green and ecofriendly synthesis approach is a promising way to produce these nanostructures with desired properties with less risk of hazardous chemicals. In this regard, ZnO and TiO2 nanostructures are prominent candidates for various applications. Moreover, they are more efficient, non-toxic, and cost-effective. This review mainly focuses on the recent state-of-the-art advancements in the green synthesis approach for ZnO and TiO2 nanostructures and their applications. The first section summarizes the green synthesis approach to synthesize ZnO and TiO2 nanostructures via different routes such as solvothermal, hydrothermal, co-precipitation, and sol-gel using biological systems that are based on the principles of green chemistry. The second section demonstrates the application of ZnO and TiO2 nanostructures. The review also discusses the problems and future perspectives of green synthesis methods and the related issues posed and overlooked by the scientific community on the green approach to nanostructure oxides.

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Section: Applications Of Tio 2 and Zno Nanostructuresmentioning

confidence: 99%

Green Synthesis and Applications of ZnO and TiO2 Nanostructures

et al. 2021

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“…The utilization of solar energy to dissociate water into H2 and oxygen (O2) through photocatalysis assisted by a semiconductor photocatalyst is gaining momentum among various ways of H2 production. With the pioneering work from Honda and Fujishima on the splitting of water using single-crystal TiO2 [1,2], many revolutionary ideas have contributed towards developing an efficient photocatalyst for the effective utilization of solar energy and high H2 yield in absence of any carbonaceous by-products [3][4][5][6]. The mechanism of photo splitting of water involves absorption of radiation with an energy greater than the bandgap of the photocatalyst.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical Ternary Sulfides as Effective Photocatalyst for Hydrogen Generation Through Water Splitting: A Review on the Performance of ZnIn2S4

et al. 2021

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One of the major aspects and advantages of solar energy conversion is the photocatalytic hydrogen generation using semiconductor materials for an eco-friendly technology. Designing a low-cost efficient material to overcome limited light absorption as well as rapid recombination of photogenerated charge carriers is essential to achieve considerable hydrogen generation. In recent years, sulfide based semiconductors have attracted scientific research interest due to their excellent solar response and narrow band gap. The present review focuses on the recent approaches in the development of hierarchical ternary sulfide based photocatalysts with a special focus on ZnIn2S4. We also observe how the electronic structure of ZnIn2S4 is beneficial for water splitting and the various strategies involved for improving the material efficiency for photocatalytic hydrogen generation. The review places emphasis on the latest advancement/new insights on ZnIn2S4 being used as an efficient material for hydrogen generation through photocatalytic water splitting. Recent progress on essential aspects which govern light absorption, charge separation and transport are also discussed in detail.

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“…TiO 2 shows three different crystal structures, anatase, rutile, and brookite. Among these anatase (band gap energy 3.2 eV) showed the highest photocatalytic activity due to its open structure [39] . Kerrami et al.…”

Section: Introductionmentioning

confidence: 99%

“…The photocatalytic activity is influenced by factors such as pH and calcination temperature [39] . Ruiz et al.…”

Section: Introductionmentioning

confidence: 99%

Metal‐Doped Titanium Dioxide for Environmental Remediation, Hydrogen Evolution and Sensing: A Review

et al. 2021

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Titanium dioxide is an essential photocatalyst for the purification of water and air and energy generation. Titanium dioxide shows relatively high chemical stability and reactivity under ultraviolet light (λ< 387 nm), the energy of which exceeds the 3.3 eV bandgap in the crystalline anatase phase. TiO2 is active under UV light, and its practical applicability is limited under visible light. Modification techniques like metal doping can enhance its activity under visible light. Metal doping is employed for introducing additional states in the TiO2 bandgap. Fewer energy transitions are required to cause visible light absorption by these impurities. This review focuses on the effects of metal‐doping and applications of metal‐doped TiO2 in the fields of environmental remediation, hydrogen evolution, and sensing.

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A review and recent advances in solar-to-hydrogen energy conversion based on photocatalytic water splitting over doped-TiO2 nanoparticles

Cited by 275 publications

References 229 publications

Green Synthesis and Applications of ZnO and TiO2 Nanostructures

Green Synthesis and Applications of ZnO and TiO2 Nanostructures

Hierarchical Ternary Sulfides as Effective Photocatalyst for Hydrogen Generation Through Water Splitting: A Review on the Performance of ZnIn2S4

Metal‐Doped Titanium Dioxide for Environmental Remediation, Hydrogen Evolution and Sensing: A Review

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