Fabrication of heterostructural Ru-SrTiO3 fibers through in-situ exsolution for visible-light-induced photocatalysis

Li, Qinghao; Zhou, Jun; Fu, Lei; Chen, Chengxiang; Mao, Siman; Pu, Zengxin; Yang, Jiaming; Shi, Jian‐Wen; Wu, Kai

doi:10.1016/j.jallcom.2022.166747

Cited by 5 publications

(2 citation statements)

References 60 publications

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“…Surface-exsolved Ag nanoparticles can enhance photocatalytic water splitting. Yu et al 135 136 produced a Ru-exsolved Sr 0.9 Ti 0.9 Ru 0.1 O 3−δ (STRO) fiberencapsulated perovskite system. Such metal−semiconductor heterostructures are believed to enchance charge separation and generation as well as increase the active surface area.…”

Section: Metal−air Batteriesmentioning

confidence: 99%

Emerging Exsolution Materials for Diverse Energy Applications: Design, Mechanism, and Future Prospects

et al. 2023

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Nanostructured catalytic materials are considered to be a favorable design concept for various energy conversion and storage systems. Nanosized metal catalysts supported on oxide scaffolds have been adopted in numerous fields, including fuel cells, gas sensors, and chemical reforming devices. Nevertheless, nanometal catalysts often suffer from durability issues. Although surface-decorated nanometal catalysts can deliver sufficient catalytic activity, some of them still exhibit durability issues in severe operating environments. Recently, nanocatalysts produced by in situ exsolution have been demonstrated to overcome the practical limitations of conventional nanometal catalysts. The exsolution is defined as a process in which a catalytically active dopant in perovskite oxide is exsolved on its surface as highly dispersed nanometal catalysts. In particular, exsolution nanocatalysts embedded on perovskite oxides exhibit higher nanoparticle densities and greater resistance to particle agglomeration than conventional nanometal catalysts. This Perspective presents an overview of recent advances in exsolution materials for energy applications including fundamental mechanisms, design strategies for host oxides, and practical applications. The future prospects of these materials and the scope for further optimization are also discussed.

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Section: Metal−air Batteriesmentioning

confidence: 99%

Emerging Exsolution Materials for Diverse Energy Applications: Design, Mechanism, and Future Prospects

et al. 2023

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“…In this work, the flexible fibrous membrane loaded with Bi 5 O 7 I:Er 3+ -Yb 3+ (BOIEY) hollow nanoflowers have been synthesized by a solvothermal-electrospinning process . The composite fibers present strong environmental adaptability and recyclability features of fibers with the optical properties of nanocrystals (NCs), thereby having potential application under extreme conditions. − The photocatalytic performance of Bi 5 O 7 I:Er 3+ -Yb 3+ /polyacrylonitrile (BOIEY/PAN) composite fibers are studied by degradation of tetracycline hydrochloride (TC-HCl) under simulated sunlight irradiation, and the plausible mechanism of photocatalytic reaction is also investigated. Furthermore, the UC luminescence performance and mechanism have been explored by monitoring the thermal coupling levels of 2 H 11/2 and 4 S 3/2 of Er 3+ .…”

Section: Introductionmentioning

confidence: 99%

Hollow Bi₅O₇I:Er³⁺-Yb³⁺ Nanoflowers in Flexible Fibrous Membranes for Catalytic Purification and Temperature Monitoring

Zhang,

Wang

et al. 2023

ACS Appl. Nano Mater.

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The problem of water pollution caused by antibiotics urgently needs to be solved urgently. In this study, the Bi5O7I:Er3+-Yb3+ (BOIEY) nanoflowers with a diameter of 600–900 nm loaded flexible fibrous membrane has been synthesized via a combined hydrothermal and electrospinning process. It is noteworthy that the composite fibers successfully achieved efficient catalytic purification under real-time temperature monitoring. The BOIE0.5Y1.5/PAN composite fibers displayed the highest photocatalytic performance in the degradation of tetracycline hydrochloride (TC-HCl), with a removal rate of 91.83% in 80 min, which is 1.76 times that of pure BOI. The efficient photocatalytic performance was mainly attributed to the doping of rare earth ions and the special structure of the composite fibers. Er3+ and Yb3+ ions played the role of broadening the absorption spectrum by upconverting near-infrared light into visible light and promoted the separation of electron and hole pairs, thereby improving the photocatalytic efficiency. In addition, the unique structure of the hollow spherical-flower-loaded flexible fibrous membrane exhibited a larger specific surface area and stronger photon absorption capacity compared with traditional nanocrystals (NCs). Furthermore, based on the 2H11/2/4S3/2 → 4I15/2 radiative transitions of Er3+, the real-time temperature feedback of the degradation process in the 303–433 K ranges is evaluated and the relative temperature sensitivity reaches 0.63% K–1 at 353 K. The dual-function composite fibers provide insight into antibiotic removal in complex environments and ecological restoration.

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L-cysteine-protected ruthenium nanoclusters on CdS as efficient and reusable photocatalysts for hydrogen production

Wang

et al. 2023

International Journal of Hydrogen Energy

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Fabrication of heterostructural Ru-SrTiO3 fibers through in-situ exsolution for visible-light-induced photocatalysis

Cited by 5 publications

References 60 publications

Emerging Exsolution Materials for Diverse Energy Applications: Design, Mechanism, and Future Prospects

Emerging Exsolution Materials for Diverse Energy Applications: Design, Mechanism, and Future Prospects

Hollow Bi₅O₇I:Er³⁺-Yb³⁺ Nanoflowers in Flexible Fibrous Membranes for Catalytic Purification and Temperature Monitoring

L-cysteine-protected ruthenium nanoclusters on CdS as efficient and reusable photocatalysts for hydrogen production

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Fabrication of heterostructural Ru-SrTiO3 fibers through in-situ exsolution for visible-light-induced photocatalysis

Cited by 5 publications

References 60 publications

Emerging Exsolution Materials for Diverse Energy Applications: Design, Mechanism, and Future Prospects

Emerging Exsolution Materials for Diverse Energy Applications: Design, Mechanism, and Future Prospects

Hollow Bi5O7I:Er3+-Yb3+ Nanoflowers in Flexible Fibrous Membranes for Catalytic Purification and Temperature Monitoring

L-cysteine-protected ruthenium nanoclusters on CdS as efficient and reusable photocatalysts for hydrogen production

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Hollow Bi₅O₇I:Er³⁺-Yb³⁺ Nanoflowers in Flexible Fibrous Membranes for Catalytic Purification and Temperature Monitoring