Configuration regulation of active sites by accurate doping inducing self-adapting defect for enhanced photocatalytic applications: A review

Zhang, Shuqu; Yi, Xingshen; Hu, Guanghua; Chen, Meixue; Shen, H. F.; Li, Bing; Yang, Lixia; Dai, Weili; Zou, Jian‐Ping; Luo, Shenglian

doi:10.1016/j.ccr.2022.214970

Cited by 50 publications

(15 citation statements)

References 234 publications

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“…Moreover, the same element may play different roles depending on its dopant position and concentration. [49] Favorable effects can become detrimental if defects are improperly introduced. Therefore, special attention should be paid to the specific treatment of defects, especially regarding mechanisms pertinent to device performance.…”

Section: Heteroatom Dopingmentioning

confidence: 99%

The Positive Versus Negative Effects of Defect Engineering for Solar Water Splitting: A Review

Huang,

Meng,

et al. 2023

Adv Funct Materials

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Although defect design is an essential means of improving the performance of photocatalytic materials, defect introduction is not always beneficial. Current defect engineering focuses on avoiding or modifying introduced defects to mitigate their adverse effects on solar water splitting performance. This review comprehensively summarizes the strategies for defect introduction and discusses their crucial roles in solar water splitting. Focusing on the dual effects of defects, the most basic schemes for preparing favorable defects through pretreatment and posttreatment methods are reviewed. In addition, the review focuses on strategies for overcoming or mitigating the detrimental effects of defects to improve the performance of photocatalysts. Finally, the challenges and prospects of developing a defect‐based photocatalyst design strategy are outlined. This review provides a reference for preparing defect‐based photocatalysts for conducting more in‐depth research on defects. Additionally, it offers ideas for utilizing unfavorable defects and converting them into favorable defects for performance improvement.

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Section: Heteroatom Dopingmentioning

confidence: 99%

The Positive Versus Negative Effects of Defect Engineering for Solar Water Splitting: A Review

Huang,

Meng,

et al. 2023

Adv Funct Materials

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“…Introducing an impurity element into the host structure, called doping, is a common strategy to change and regulate the physicochemical characteristics of a photocatalyst. The dopants can be introduced into the lattice to replace a number of cations or anions in substitutional sites and/or occupy interstitial sites. , The photocatalyst characteristics that are alterable through doping include (1) photon absorption capability, (2) oxidation and reduction power of charge carriers, (3) concentration and spatial distribution of defects, (4) crystallinity, (5) particle size, and (6) surface structure. ,,,,− Doping appears to be applicable to overcome both bulk and surface issues. Recent reviews discussing doped photocatalysts are available in the literature. − …”

Section: Charge Carrier Behavior In Various Photocatalytic Systemsmentioning

confidence: 99%

Probing Charge Carrier Behavior in Engineered Photocatalysts with Time-Resolved Visible to Mid-IR Absorption Spectroscopy

Sudrajat,

Carra,

Rossetti

et al. 2023

J. Phys. Chem. C

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Light-induced catalytic reactions on the photocatalyst surface are initiated by excited charge carriers. Therefore, the observed photocatalytic behavior is sensitive to the charge carrier behavior. In this regard, understanding charge carrier behavior is important to help us more efficiently improve the photocatalytic activity, which is often limited by unfavorable charge carrier dynamics and poor charge carrier management. In this review, we discuss how charge carrier behavior is elucidated in a diverse array of photocatalytic systems with time-resolved visible to mid-IR absorption spectroscopy (TRVIR) to reveal the reason behind their high activity. TRVIR is a promising technique that combines a visible-NIR probe and a near-mid-IR probe to characterize the behavior of both electron and hole. Interpretation of TRVIR spectra is described in sufficient detail here to shed light on how charge carriers behave upon structural modifications, thereby allowing one to foresee proper modifications for future photocatalysts. Perspectives are then presented to stimulate further discussions.

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“…This enhances the photoelectrochemical properties of the catalyst without compromising the actual lattices structure. [94][95][96] The introduction of oxygen defects to the catalyst surface can ameliorate the ability to harvest photons in the UV-vis rangeand also serve astraps for electrons. This improves charge utilization and accelerates the rate of surface reactions.…”

Section: Oxygen Vacancy-assisted Mars-van Krevelen Reaction Pathwaymentioning

confidence: 99%

Harnessing Solar Energy Towards Synergistic Photothermal Catalytic Oxidation of Volatile Organic Compounds

et al. 2023

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Volatile organic compounds (VOCs) are prominent air pollutants, hazardous to human health and the environment. Sunlight is a sustainable energy source capable of meeting the demands for heterogeneous catalysis. Photothermal catalysis has emerged as an energy‐efficient technology for VOCs oxidation by merging the advantages of thermochemistry and photocatalysis. This review examines the advantages of the photothermal catalytic system, such as the absorption and conversion of solar light, accelerated reaction rates, and improved product selectivity. The photothermal catalytic system is clearly categorized according to the significant contributions of light and thermal energy to the reaction. As a result of the direct conversion of photons into thermal energy to surpass the light‐off temperature and drive the catalytic reaction, an ample discussion of light‐induced thermal catalytic processes is presented. Furthermore, the participation of the localized surface plasmon resonance effect and oxygen vacancies in the surface reaction under irradiation and thermal energy are spotlighted. A comprehensive discussion is provided for the various photothermal active nanostructures. The underlying superior resistance mechanism to water vapour and coke formation as well as high oxygen concentrations in photothermal catalytic system are emphatically highlighted. Finally, current research trends and prospects are discussed.

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Configuration regulation of active sites by accurate doping inducing self-adapting defect for enhanced photocatalytic applications: A review

Cited by 50 publications

References 234 publications

The Positive Versus Negative Effects of Defect Engineering for Solar Water Splitting: A Review

The Positive Versus Negative Effects of Defect Engineering for Solar Water Splitting: A Review

Probing Charge Carrier Behavior in Engineered Photocatalysts with Time-Resolved Visible to Mid-IR Absorption Spectroscopy

Harnessing Solar Energy Towards Synergistic Photothermal Catalytic Oxidation of Volatile Organic Compounds

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