Extended visible to near-infrared harvesting of earth-abundant FeS<sub>2</sub>–TiO<sub>2</sub> heterostructures for highly active photocatalytic hydrogen evolution

Kuo, Tsung‐Rong; Liao, Hsiang Ju; Chen, Yuting; Wei, Chuan Yu; Chang, Chia‐Che; Chen, Yi Chia; Chang, Yi Hsuan; Lin, Jou Chun; Lee, Yi Cheng; Wen, Cheng; Li, Shao Sian; Lin, Kung‐Hsuan; Wang, Di Yan

doi:10.1039/c7gc03173d

Cited by 86 publications

(51 citation statements)

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“…Among others, metal sulfides have long been the topic of research, especially photocatalytic applications due to their suitable electronic bandgaps, exposed active sites, diverse and adjustable chemical structures 11 . However, apart from the factor of photochemical photocorrosion, which can be dramatically suppressed by the usage of sacrificial agents or surface decoration of passive layers [12][13][14] , the metal sulfides directly employed as photoanodes usually exhibit low photoinduced electron-hole separation efficiencies and sluggish surface water oxidation kinetics [15][16][17][18] , which limits the application of metal sulfides-based photoanodes. The defects in metal sulfide, especially for introducing sulfur vacancies, are evidenced as an effective strategy to enhance the photocatalytic and PEC properties [19][20][21][22] .…”

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confidence: 99%

Highly active deficient ternary sulfide photoanode for photoelectrochemical water splitting

et al. 2020

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The exploration of photoanode materials with high efficiency and stability is the eternal pursuit for the realization of practically solar-driven photoelectrochemical (PEC) water splitting. Here we develop a deficient ternary metal sulfide (CdIn 2 S 4) photoanode, and its PEC performance is significantly enhanced by introducing surface sulfur vacancies, achieving a photocurrent density of 5.73 mA cm −2 at 1.23 V vs. RHE and 1 Sun with an applied bias photon-to-current efficiency of 2.49% at 0.477 V vs. RHE. The experimental characterizations and theoretical calculations highlight the enhanced effect of surface sulfur vacancies on the interfacial charge separation and transfer kinetics, which also demonstrate the restrained surface states distribution and the transformation of active sites after introducing surface sulfur vacancies. This work may inspire more excellent work on developing sulfide-based photoanodes.

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Highly active deficient ternary sulfide photoanode for photoelectrochemical water splitting

et al. 2020

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“…As a result, in FeS 2 /TiO 2 catalysts electrons are more easily promoted from the valence band to the conduction band, resulting in a higher photocatalytic activity. Similarly, Kuo, Li, Lin, Wang and co-workers prepared FeS 2 -TiO 2 nanocrystals, whose absorption range is even extended from the UV-visible to the near-infrared region [61]. As a part of this work, they studied the FeS 2 -TiO 2 -catalyzed HER from a 50% aqueous methanol solution and tested FeS 2 -TiO 2 composites with different FeS 2 loadings.…”

Section: Fes 2 -Tio 2 Composite Materialsmentioning

confidence: 99%

Iron Sulfide Materials: Catalysts for Electrochemical Hydrogen Evolution

Heift

2019

Inorganics

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The chemical challenge of economically splitting water into molecular hydrogen and oxygen requires continuous development of more efficient, less-toxic, and cheaper catalyst materials. This review article highlights the potential of iron sulfide-based nanomaterials as electrocatalysts for water-splitting and predominantly as catalysts for the hydrogen evolution reaction (HER). Besides new synthetic techniques leading to phase-pure iron sulfide nano objects and thin-films, the article reviews three new material classes: (a) FeS2-TiO2 hybrid structures; (b) iron sulfide-2D carbon support composites; and (c) metal-doped (e.g., cobalt and nickel) iron sulfide materials. In recent years, immense progress has been made in the development of these materials, which exhibit enormous potential as hydrogen evolution catalysts and may represent a genuine alternative to more traditional, noble metal-based catalysts. First developments in this comparably new research area are summarized in this article and discussed together with theoretical studies on hydrogen evolution reactions involving iron sulfide electrocatalysts.

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“…Among different solutions to overcome the antimicrobial resistance, the developments of new antimicrobial agents are critically needed [10,11,12]. Nanomaterials with large surface area and facile functionalization have exhibited superior physical and chemical properties for applications in catalysis, electronic and medicine [13,14,15,16,17,18,19,20]. Recently, organic and inorganic nanomaterials offer an alternative approach to treat infectious diseases caused by bacteria [21,22,23,24,25,26,27].…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial Gold Nanoclusters: Recent Developments and Future Perspectives

Yougbaré

Chang

Tan

et al. 2019

IJMS

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125

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Bacterial infections have caused serious threats to public health due to the antimicrobial resistance in bacteria. Recently, gold nanoclusters (AuNCs) have been extensively investigated for biomedical applications because of their superior structural and optical properties. Great efforts have demonstrated that AuNCs conjugated with various surface ligands are promising antimicrobial agents owing to their high biocompatibility, polyvalent effect, easy modification and photothermal stability. In this review, we have highlighted the recent achievements for the utilizations of AuNCs as the antimicrobial agents. We have classified the antimicrobial AuNCs by their surface ligands including small molecules (<900 Daltons) and macromolecules (>900 Daltons). Moreover, the antimicrobial activities and mechanisms of AuNCs have been introduced into two main categories of small molecules and macromolecules, respectively. In accordance with the advancements of antimicrobial AuNCs, we further provided conclusions of current challenges and recommendations of future perspectives of antimicrobial AuNCs for fundamental researches and clinical applications.

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Extended visible to near-infrared harvesting of earth-abundant FeS₂–TiO₂ heterostructures for highly active photocatalytic hydrogen evolution

Abstract: Photocatalytic water splitting is a key technology for long-term hydrogen evolution with low environmental impact.

Cited by 86 publications

References 46 publications

Highly active deficient ternary sulfide photoanode for photoelectrochemical water splitting

Highly active deficient ternary sulfide photoanode for photoelectrochemical water splitting

Iron Sulfide Materials: Catalysts for Electrochemical Hydrogen Evolution

Antimicrobial Gold Nanoclusters: Recent Developments and Future Perspectives

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Extended visible to near-infrared harvesting of earth-abundant FeS2–TiO2 heterostructures for highly active photocatalytic hydrogen evolution

Abstract: Photocatalytic water splitting is a key technology for long-term hydrogen evolution with low environmental impact.

Cited by 86 publications

References 46 publications

Highly active deficient ternary sulfide photoanode for photoelectrochemical water splitting

Highly active deficient ternary sulfide photoanode for photoelectrochemical water splitting

Iron Sulfide Materials: Catalysts for Electrochemical Hydrogen Evolution

Antimicrobial Gold Nanoclusters: Recent Developments and Future Perspectives

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Product

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Extended visible to near-infrared harvesting of earth-abundant FeS₂–TiO₂ heterostructures for highly active photocatalytic hydrogen evolution