Photothermal-assisted photocatalytic degradation with ultrahigh solar utilization: Towards practical application

Lu, Shuaishuai; Liu, Fengling; Qiu, Pengxiang; Qiao, Man; Li, Yafei; Cheng, Ziwen; Xue, Ningxuan; Hou, Xiaokang; Xu, Chenmin; Xiang, Yubing; Peng, Fengping; Guo, Zhaobing

doi:10.1016/j.cej.2019.122382

Cited by 74 publications

(31 citation statements)

References 61 publications

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“…[11][12][13] This photo-thermal effect has been extensively applied in a large number of fields, including cancer therapy, degradation of pollutants, seawater desalination and water vaporization. [14][15][16][17][18][19] It was therefore only a matter of time until similar concepts were applied to speed up chemical reactions. Indeed, photo-thermal catalysis combines photochemical and thermochemical contributions of sunlight and has emerged as a rapidly growing and exciting new field of research.…”

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confidence: 99%

Fundamentals and applications of photo-thermal catalysis

et al. 2021

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Fundamentals and applications of photo-thermal catalysis

et al. 2021

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“…Recently, many photothermal-assisted photocatalysts have been reported [ 7 , 8 , 36 ]. Most of them combined high-performance photothermal conversion materials with high-performance photocatalysts to build co-photocatalysts.…”

Section: Resultsmentioning

confidence: 99%

“…Since then, a large number of methods [ 4 ] have been used to obtain black TiO x nanoparticles, such as hydrogen thermal treatment [ 5 ], hydrogen plasma [ 6 ], electrochemical reduction, and chemical reduction. Moreover, the photothermal-assisted photocatalyst system with a light absorber/semiconductor composite (LASC) has been demonstrated beneficial for the photocatalytic reaction [ 7 , 8 , 9 ]. LASC systems composed of black TiO x with high absorbance might bring substantial photothermal conversion efficiency for photocatalytic application.…”

Section: Introductionmentioning

confidence: 99%

Black TiOx Films with Photothermal-Assisted Photocatalytic Activity Prepared by Reactive Sputtering

Mao

et al. 2021

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Titanium oxide is widely applied as a photocatalyst. However, its low efficiency and narrow light absorption range are two main disadvantages that severely impede its practical application. In this work, black TiOx films with different chemical compositions were fabricated by tuning target voltage and controlling O2 flow during reactive DC magnetron sputtering. The optimized TiOx films with mixed phases (TiO, Ti2O3, Ti3O5, and TiO2) exhibited fantastic photothermal and photocatalytic activity by combining high light-absorptive Ti2O3 and Ti3O5 phases with the photocatalytic TiO2 phase. The sample prepared with oxygen flow at 5.6 ± 0.2 sccm and target voltage near 400 V exhibited excellent optical absorbance of 89.29% under visible light, which could improve surface temperature to 114 °C under sunlight. This film could degrade Rhodamine-B up to 74% after 150 min of UV irradiation. In a word, this work provides a guideline for fabricating black TiOx films with photothermal-assisted photocatalytic activity by reactive DC magnetron sputtering, which could avoid the usage of hydrogen and is convenient for quantity preparation.

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“…The pure CN NSs display a typical semiconducting absorption feature with edge at around 450 nm, corresponding to the bandgap energy of approximately 2.8 eV (Figure S4, Supporting Information). There is a small absorption fluctuation over the NIR region in the range of 1500–2500 nm due to the surface chemical groups . Accordingly, the pure CN mainly harvests UV light and small portion of visible light with limited wavelength shorter than 450 nm, which underutilizes the vis–NIR light accounting for over 95% of incoming solar energy.…”

Section: Resultsmentioning

confidence: 99%

Plasmonic Cocatalyst with Electric and Thermal Stimuli Boots Solar Hydrogen Evolution

et al. 2020

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Exploring low-cost and high-activity cocatalysts cooperated with semiconductors is a prerequisite to advance cost-efficient photocatalytic water splitting. Herein, nickel nanoparticles (NNPs) loaded on graphitic carbon nitride (CN) as unique non-noble metal cocatalysts with electric and thermal excitation upon surface plasmon for photocatalytic hydrogen (H 2 ) evolution reaction (HER) are designed. The plasmonic NNPs not only endow highly active sites, steering hot electron extraction from excited CN toward HER against charge recombination, but also act as full-spectrum light-harvesting antennas enabling plasmon heating for kinetic acceleration. As a result, the optimized CN/NNP hybrid exhibits a significant increase in the H 2 -evolution rate up to 13.23 mmol g À1 h À1 with temperature up to 73 C within 2 h, which far surpasses bare CN and even outperforms CN/Pt hybrid. This work describes the capacity of plasmonic cocatalysts to convert the supplementary photon flux into numerous stimuli, which provides new inspirations for designing photocatalytic systems for solar energy conversion.

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Photothermal-assisted photocatalytic degradation with ultrahigh solar utilization: Towards practical application

Cited by 74 publications

References 61 publications

Fundamentals and applications of photo-thermal catalysis

Fundamentals and applications of photo-thermal catalysis

Black TiOx Films with Photothermal-Assisted Photocatalytic Activity Prepared by Reactive Sputtering

Plasmonic Cocatalyst with Electric and Thermal Stimuli Boots Solar Hydrogen Evolution

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