The effect of electronic structure changes in NaInO2and NaIn0.9Fe0.1O2on the photoreduction of methylene blue

Lekse, Jonathan W.; Haycock, Barry; Lewis, James P.; Kauffman, Douglas R.; Matranga, Christopher

doi:10.1039/c4ta00906a

Cited by 18 publications

(9 citation statements)

References 40 publications

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“…According to the available literature, the flat band potential values for the ZnO and ZnCdSe are −0.38 V vs normal hydrogen electrode (NHE) and −0.5 V vs NHE . Furthermore, considering the band gap energies of the semiconductors, the (VB) potential (EVB) was calculated using the following equation: …”

Section: Resultssupporting

confidence: 89%

Topotactic and Self-Templated Fabrication of Zn_1–xCd_xSe Porous Nanobelt–ZnO Nanorod for Photoelectrochemical Hydrogen Production

Patil

Mahadik

Chae

et al. 2021

ACS Appl. Mater. Interfaces

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Herein, we propose the topotactic and self-templated fabrication of Zn1–x Cd x Se porous nanobelt–ZnO nanorod (termed as ZnCdSe/ZnO) photoelectrode via the cadmium (Cd2+) ion-exchange process on zinc (Zn) foil. Inorganic–organic hybrid ZnSe(en)0.5 nanobelt (NB) was synthesized on Zn foil by a facial solvothermal method at different temperatures of 140, 160, and 180 °C for 12 h. The interfacial properties and photoelectrochemical (PEC) performance of inorganic–organic ZnSe(en)0.5 NB fabricated through the Cd2+ ion-exchange method at different time durations of 6, 12, 18, and 24 h at 140 °C were investigated. The TEM analysis results indicate that the inorganic–organic ZnSe(en)0.5 NB transformed into ZnCdSe and a self-assembled ZnO formed on the Zn foil. In particular Cd2+ ion temperature (140 °C/18 h), the optimized ZnCdSe/ZnO-(F) photoelectrode shows an excellent photocurrent density of 14 mA·cm–2 at 0 V vs Ag/AgCl with 219 μmol·cm–2 hydrogen gas evolution for 3 h under 1 sun illumination. The higher photocurrent value resulted from the optimum growth of ZnO, the formation of porous ZnCdSe, and the effective electrolyte penetration for electron–hole pair separation. The photoluminescence spectroscopy shows that the photoexcited charged carriers promoted a longer lifetime. Furthermore, we provide a full account of the possible charge-transfer mechanism during PEC hydrogen production.

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Section: Resultssupporting

confidence: 89%

Topotactic and Self-Templated Fabrication of Zn_1–xCd_xSe Porous Nanobelt–ZnO Nanorod for Photoelectrochemical Hydrogen Production

Patil

Mahadik

Chae

et al. 2021

ACS Appl. Mater. Interfaces

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“…Wang et al [55] reported 0.5 wt% Pt/NaInO 2 can completely degrade MB in 1h. Jonathan et al [56] reported the effect of electronic structure changes in NaInO 2 and NaIn 0.9 Fe 0.1 O 2 on the photo reduction of Methylene Blue. Indium-Containing Visible-Light-Driven (VLD) Photocatalysts for Solar Energy Conversion and Environment Remediation http://dx.doi.org/10.5772/63233…”

Section: B Site Containing Indium Oxidesmentioning

confidence: 99%

Indium-Containing Visible-Light-Driven (VLD) Photocatalysts for Solar Energy Conversion and Environment Remediation

Zhang¹,

Huang²,

Xu³

et al. 2016

Semiconductor Photocatalysis - Materials, Mechanisms and Applications

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Indium-containinμ visible-liμht-driven VLD photocatalysts includinμ indiumcontaininμ oxides, indium-containinμ sulλides, indium-containinμ hydroxides, and other cateμories have attracted more attention due to their hiμh catalytic activities λor oxidation and reduction ability under visible liμht irradiation. This chapter will thereλore concentrate on indium-containinμ nano-structured materials that demonstrate useλul activity under solar excitation in λields concerned with the elimination oλ pollutants, partial oxidation and the vaporization oλ chemical compounds, water splittinμ, and CO reduction processes. The indium-containinμ photocatalysts can extend the liμht absorption ranμe and improve the photocatalytic activity by dopinμ, heteroμeneous structures, load promoter, and morpholoμy reμulation. A number oλ synthetic and modiλication techniques λor adjustinμ the band structure to harvest visible liμht and improve the charμe separation in photocatalysis are discussed. In this chapter, preparation, properties, and potential applications oλ indium-containinμ nano-structured materials used as photocatalysis will be systematically summarized, which is beneλicial λor understandinμ the mechanism and developinμ the potential applications.

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“…Hence, it is critical to develop an efficient strategy to utilize the visible light of the solar spectrum for photocatalytic applications. Up to now, several efforts have been made to improve the performances of AInO 2 ‐based materials for the potential applications in the fields of energy conversion and environmental remediation . For example, J. Sato and coworkers reported the photocatalytic activities for water decomposition with RuO 2 ‐loaded AInO 2 (A=Li, Na) .…”

Section: Introductionmentioning

confidence: 99%

“…For example, J. Sato and coworkers reported the photocatalytic activities for water decomposition with RuO 2 ‐loaded AInO 2 (A=Li, Na) . J. Lekse et al investigated the changes of electronic structure in NaInO 2 by introducing Fe ion (NaIn 0.9 Fe 0.1 O 2 ) and the catalytic activities for the degradation of methylene blue (MB) under UV‐light illumination . In our previous reports, we have reported N‐doped LiInO 2 which showed better light absorption in visible light and higher photocatalytic activity as compared undoped LiInO 2.…”

Section: Introductionmentioning

confidence: 99%

Enhanced visible‐light‐driven photocatalytic activities of LiInO₂ by Mo⁶⁺‐doping strategy

Zhang

Huang

et al. 2017

J Am Ceram Soc

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A novel visible-light-driven photocatalyst of Mo-doped LiInO 2 nanocomposite was successfully synthesized through a sol-gel method. The effect of Mo-doping concentrations on the microstructures and properties of LiInO 2 was characterized by X-ray diffraction, scanning electron microscope, X-ray photoelectron spectroscopy, photoluminescence, and ultraviolet-visible absorption spectra. The photocatalytic properties of the as-prepared samples were evaluated by the photocatalytic degradation of methylene blue (MB) dye under visible-light irradiation. The results demonstrated that the photocatalytic activity of 6% Mo-LiInO 2 reached to 98.6%, which was much higher than that of the undoped photocatalyst LiInO 2 (only 46.8%). The enhanced photocatalytic activity is ascribed to Mo-doping strategy. The holes play an important role in the process of the photodegradation of MB. The superior photocatalytic activity of the as-prepared Mo-LiInO 2 nanocomposites suggests a potential application for organic dye degradation of wastewater remediation. This work provides a further understanding on tailoring the band structure of semiconductor photocatalyst for enhancing visible-light absorption and promoting electron-hole separation by Mo-doping strategy.

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The effect of electronic structure changes in NaInO₂and NaIn_0.9Fe_0.1O₂on the photoreduction of methylene blue

Abstract: Substitution into delafossite oxides is one promising method for the generation of improved catalysts for photochemical reactions such as the degradation of dyes and organic pollutants.

Cited by 18 publications

References 40 publications

Topotactic and Self-Templated Fabrication of Zn_1–xCd_xSe Porous Nanobelt–ZnO Nanorod for Photoelectrochemical Hydrogen Production

Topotactic and Self-Templated Fabrication of Zn_1–xCd_xSe Porous Nanobelt–ZnO Nanorod for Photoelectrochemical Hydrogen Production

Indium-Containing Visible-Light-Driven (VLD) Photocatalysts for Solar Energy Conversion and Environment Remediation

Enhanced visible‐light‐driven photocatalytic activities of LiInO₂ by Mo⁶⁺‐doping strategy

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The effect of electronic structure changes in NaInO2and NaIn0.9Fe0.1O2on the photoreduction of methylene blue

Abstract: Substitution into delafossite oxides is one promising method for the generation of improved catalysts for photochemical reactions such as the degradation of dyes and organic pollutants.

Cited by 18 publications

References 40 publications

Topotactic and Self-Templated Fabrication of Zn1–xCdxSe Porous Nanobelt–ZnO Nanorod for Photoelectrochemical Hydrogen Production

Topotactic and Self-Templated Fabrication of Zn1–xCdxSe Porous Nanobelt–ZnO Nanorod for Photoelectrochemical Hydrogen Production

Indium-Containing Visible-Light-Driven (VLD) Photocatalysts for Solar Energy Conversion and Environment Remediation

Enhanced visible‐light‐driven photocatalytic activities of LiInO2 by Mo6+‐doping strategy

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The effect of electronic structure changes in NaInO₂and NaIn_0.9Fe_0.1O₂on the photoreduction of methylene blue

Topotactic and Self-Templated Fabrication of Zn_1–xCd_xSe Porous Nanobelt–ZnO Nanorod for Photoelectrochemical Hydrogen Production

Topotactic and Self-Templated Fabrication of Zn_1–xCd_xSe Porous Nanobelt–ZnO Nanorod for Photoelectrochemical Hydrogen Production

Enhanced visible‐light‐driven photocatalytic activities of LiInO₂ by Mo⁶⁺‐doping strategy