Tuning metal@metal salt photocatalytic abilities by different charged anions

Huang, Hui; Li, Xiaorui; Kang, Zhenhui; Liu, Yang; Li, Haitao; He, Xiaodie; Lian, Suoyuan; Liu, Jinglin; Lee, Shuit‐Tong

doi:10.1039/c0dt00824a

Cited by 35 publications

(36 citation statements)

References 34 publications

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“…Meanwhile, the photocatalytic ability was also affected by the stability of anions (Cl − > Br − ). This is consistent with the report by Huang and co-workers5.…”

Section: Resultssupporting

confidence: 94%

“…The activities of the latter two samples compare equally or favorably to that of some recently reported corresponding photocatalysts synthesized via other routes789. And that of Ag 2 CrO 4 @Ag is slightly weaker than the Huang's report5. Moreover, because the photocatalytic measurement of Ag 3 PO 4 @Ag was carried out with the irradiation wavelength from 400 nm, we cannot develop a parallel comparation of the capacity to other reports which most of them employed the filtered irradiation with wavelengths starting at 420 nm.…”

Section: Resultssupporting

confidence: 75%

“…Other photocatalytic ability sequence can be elucidated by the analyses of microstructure and extinction spectra, for example, that the photocatalytic ability of AgCl@Ag increased with increasing metallic silver content can be ascribed to developing trend of content and the SPR structure of Ag-NPs. Furthermore, according to the study of Huang and co-workers5, the stability of holes (namely the positive charge centers) determines the activity of photocatalyst, following the rule: the higher stability and higher charged anions lead to the stronger photocatalytic ability. In the present work, better photocatalytic activity of Ag 3 PO 4 @Ag may due to the high charged PO 4 3− anion with high stability and stronger deposited electron ability.…”

Section: Discussionmentioning

confidence: 99%

“…Recently, Ag-based photocatalyst Ag n X@Ag-NPs has been attracted much attention due to their photocatalytic activity under visible-light irradiation123456789101112131415. Firstly, silver nanoparticles (Ag-NPs) demonstrate strong visible absorbance in virtue of the strong localized surface plasmon resonance (LSPR) effect1617181920.…”

mentioning

confidence: 99%

“…Several multiple-steps strategies have been designed to synthesize these hybrid photocatalysts23567811121415. Among these researches, ion-exchange2351415, liquids-assisted hydrothermal7, and solvothermal reaction812 were adopted firstly to prepare Ag n X, and then some Ag + ions of as-prepared Ag n X were converted to Ag via UV irradiation. Furthermore, these multiple-steps methods increased the complexity of the procedures, and the sizes of resultant Ag particles were usually in micron scale, reducing the photocatalytic effectiveness of the materials.…”

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confidence: 99%

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Engineering the metathesis and oxidation-reduction reaction in solid state at room temperature for nanosynthesis

Cao

Jia

et al. 2014

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It is a long-standing goal to explore convenient synthesis methodology for functional materials. Recently, several multiple-step approaches have been designed for photocatalysts AgnX@Ag (X = Cl−, PO43−, etc.), mainly containing the ion-exchange (metathesis) reaction followed by photoreduction in solution. But they were obsessed by complicated process, the uncontrollability of composition and larger sizes of Ag particles. Here we show a general solid-state route for the synthesis of AgnX@Ag catalysts with hierarchical structures. Due to strong surface plasmon resonance of silver nanoparticles with broad shape and size, the AgnX@Ag showed high photocatalytic activity in visible region. Especially, the composition of AgnX@Ag composites could be accurately controlled by regulating the feed ratio of (NH2OH)2·H2SO4 to anions, by which the performance were easily optimized. Results demonstrate that the metathesis and oxidation-reduction reactions can be performed in solid state at room temperature for nanosynthesis, greatly reducing the time/energy consumption and pollution.

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“…Meanwhile, the photocatalytic ability was also affected by the stability of anions (Cl − > Br − ). This is consistent with the report by Huang and co-workers5.…”

Section: Resultssupporting

confidence: 94%

Section: Resultssupporting

confidence: 75%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Engineering the metathesis and oxidation-reduction reaction in solid state at room temperature for nanosynthesis

Cao

Jia

et al. 2014

Sci Rep

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Synthesis and Activity of Plasmonic Photocatalysts

et al. 2014

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Plasmonic photocatalysts, which have intensive light absorption and high charge‐separation efficiencies, are regarded as promising candidates to solve energy and environmental issues in the future. In this Review, we summarize recent developments in the synthesis, activity, and mechanism of plasmonic photocatalysts, with the aim of stimulating improvements in photocatalytic activities and promoting the development of photocatalysis. The materials systems, energy‐transfer mechanisms, and factors that influence the photocatalytic activities of plasmonic photocatalysts are discussed. Some perspectives for the future development of the design of highly efficient plasmonic photocatalysts are proposed.

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A Strategy to Develop Efficient Ag₃PO₄‐based Photocatalytic Materials Toward Water Splitting: Perspectives and Challenges

et al. 2021

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The escalating demands for energy sources and cumulative global environmental apprehensions have synergistically contributed to advancements in solar-driven technologies to utilize renewable energy resources. Photocatalytic water splitting, which is considered the most promising and sustainable process to harness solar energy for H 2 and O 2 evolution, is of particular interest. The photocatalytic performance of Ag 3 PO 4 is attributed to its visible-light active 2.43 eV band gap energy, tunable facet crystal structure, and high thermal stability. The suitable valence band (+ 2.85 V) potential of Ag 3 PO 4 is suggestive of its extraordinary oxidation capability. Herein, recent advances in preparation, characterization, and photocatalytic activity of silver orthophosphate (Ag 3 PO 4 ) based photocatalytic materials for water splitting are reviewed. The well-suited synthesis methods and rational engineering aspects for eliminating the significant limitations of self-photocorrosion and minimum absorption in the solar spectrum are highlighted. The achievement of Ag 3 PO 4 -based photocatalytic materials in water splitting is elaborately discussed, with the main focus on heterostructure formation, facet morphology, and plasmonic phenomena. Besides, some vital accomplishments in bandgap modulation and attaining the required surface energy to achieve an attractive yield of H 2 and O 2 in the region of visiblelight are also presented. Finally, a conclusive summary outlines this all-inclusive review with appropriate recommendations for photocatalytic water splitting to meeting a green approach shortly. We expect this comprehensive study could provide a guideline to tailor more efficient Ag 3 PO 4 -based photocatalytic materials with broad research prospects toward water splitting and other sustainable applications.

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Tuning metal@metal salt photocatalytic abilities by different charged anions

Cited by 35 publications

References 34 publications

Engineering the metathesis and oxidation-reduction reaction in solid state at room temperature for nanosynthesis

Engineering the metathesis and oxidation-reduction reaction in solid state at room temperature for nanosynthesis

Synthesis and Activity of Plasmonic Photocatalysts

A Strategy to Develop Efficient Ag₃PO₄‐based Photocatalytic Materials Toward Water Splitting: Perspectives and Challenges

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Tuning metal@metal salt photocatalytic abilities by different charged anions

Cited by 35 publications

References 34 publications

Engineering the metathesis and oxidation-reduction reaction in solid state at room temperature for nanosynthesis

Engineering the metathesis and oxidation-reduction reaction in solid state at room temperature for nanosynthesis

Synthesis and Activity of Plasmonic Photocatalysts

A Strategy to Develop Efficient Ag3PO4‐based Photocatalytic Materials Toward Water Splitting: Perspectives and Challenges

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A Strategy to Develop Efficient Ag₃PO₄‐based Photocatalytic Materials Toward Water Splitting: Perspectives and Challenges