Visible light active IrO2/TiO2 films for oxygen evolution from photocatalytic water splitting in an optofluidic planar microreactor

Pala, Laxmi Prasad Rao; Peela, Nageswara Rao

doi:10.1016/j.renene.2022.08.017

Cited by 4 publications

(2 citation statements)

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“…A gas chromatograph (Agilent, 7820A, USA) equipped with a thermal conductivity detector and a CP molecular sieves column was used to evaluate the H 2 gas evolved online at a 60 minutes interval. 25,26 Each photocatalytic experiment was conducted for a duration of 5 h. Three control experiments were conducted to exclude the effect of the sacrificial reagent:…”

Section: Methodsmentioning

confidence: 99%

Organic–inorganic hybrid photocatalyst consisting of a highly conjugated metal complex and graphitic carbon nitride for efficient hydrogen evolution and Cr(vi) reduction

et al. 2022

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Section: Methodsmentioning

confidence: 99%

Organic–inorganic hybrid photocatalyst consisting of a highly conjugated metal complex and graphitic carbon nitride for efficient hydrogen evolution and Cr(vi) reduction

et al. 2022

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“…However, Ir(III) cyclometalated complexes often demonstrate weak visible light absorption, constituting approximately 40% of the sunlight spectrum [ 26 , 30 , 31 , 32 , 33 , 34 ]. Adjustments to the structures of Ir(III) cyclometalated complexes are necessary to overcome these limitations and enhance their hydrogen output.…”

Section: Introductionmentioning

confidence: 99%

Impact of Anchoring Groups on the Photocatalytic Performance of Iridium(III) Complexes and Their Toxicological Analysis

Yao,

Fan,

Zhang

et al. 2024

Molecules

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Three different iridium(III) complexes, labelled as Ir1–Ir3, each bearing a unique anchoring moiety (diethyl [2,2′-bipyridine]-4,4′-dicarboxylate, tetraethyl [2,2′-bipyridine]-4,4′-diylbis(phosphonate), or [2,2′-biquinoline]-4,4′-dicarboxylic acid), were synthesized to serve as photosensitizers. Their electrochemical and photophysical characteristics were systematically investigated. ERP measurements were employed to elucidate the impact of the anchoring groups on the photocatalytic hydrogen generation performance of the complexes. The novel iridium(III) complexes were integrated with platinized TiO2 (Pt–TiO2) nanoparticles and tested for their ability to catalyze hydrogen production under visible light. A H2 turnover number (TON) of up to 3670 was obtained upon irradiation for 120 h. The complexes with tetraethyl [2,2′-bipyridine]-4,4′-diylbis(phosphonate) anchoring groups were found to outperform those bearing other moieties, which may be one of the important steps in the development of high-efficiency iridium(III) photosensitizers for hydrogen generation by water splitting. Additionally, toxicological analyses found no significant difference in the toxicity to luminescent bacteria of any of the present iridium(III) complexes compared with that of TiO2, which implies that the complexes investigated in this study do not pose a high risk to the aquatic environment compared to TiO2.

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Enhancement of mixing and reaction efficiency of various fluids applications at different microfluidic configuration and design

Wong,

Majnis,

Lai

et al. 2024

Chemical Engineering and Processing - Process Intensification

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Visible light active IrO2/TiO2 films for oxygen evolution from photocatalytic water splitting in an optofluidic planar microreactor

Cited by 4 publications

References 54 publications

Organic–inorganic hybrid photocatalyst consisting of a highly conjugated metal complex and graphitic carbon nitride for efficient hydrogen evolution and Cr(vi) reduction

Organic–inorganic hybrid photocatalyst consisting of a highly conjugated metal complex and graphitic carbon nitride for efficient hydrogen evolution and Cr(vi) reduction

Impact of Anchoring Groups on the Photocatalytic Performance of Iridium(III) Complexes and Their Toxicological Analysis

Enhancement of mixing and reaction efficiency of various fluids applications at different microfluidic configuration and design

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