Surface plasmon resonance-induced visible light photocatalytic TiO2 modified with AuNPs for the quantification of hydroquinone

Mendonça, Camila D.; Khan, Shahid Ullah; Rahemi, Vanoushe; Verbruggen, Sammy W.; Machado, Sérgio Antônio Spínola; Wael, Karolien De

doi:10.1016/j.electacta.2021.138734

Cited by 9 publications

(4 citation statements)

References 71 publications

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“…Owing to their sensitivity and the selectivity of the spectral location of the refractive index, SPR-based optical sensors have been widely investigated in sensing applications such as mercury ion detection [8,91], CO 2 detection [1], and gas sensors [2]. Some special emphasis on plasmonic nanostructures has been developed for the fabrication of novel surfaces, exposing high SPR-based optical sensors for phenolic compounds, such as GNP impregnation in TiO 2 structure-assisted hydroquinone detection [24], Au-and tyrosinase-modified graphene oxide film-introduced detection of phenol [9], and polymeric film-based phenol determination [92].…”

Section: Localized Surface Plasmon Resonance Phenomenon-based Optical Sensor For Phenolic Compoundsmentioning

confidence: 99%

“…Recently, various optical sensor techniques have been developed, such as colorimetric [19,20], fluorescence [21,22], LSPR phenomenon [23,24], and plasmon-enhanced surface enhanced Raman scattering (SERS) [25][26][27]. Among these techniques, the SERS method based on plasmonic resonance nanomaterials is promising because of its high specific, selective, and sensitive detection capability.…”

Section: Introductionmentioning

confidence: 99%

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Recent Developments in Plasmonic Sensors of Phenol and Its Derivatives

Son

Kim

et al. 2021

Applied Sciences

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Many scientists are increasingly interested in on-site detection methods of phenol and its derivatives because these substances have been universally used as a significant raw material in the industrial manufacturing of various chemicals of antimicrobials, anti-inflammatory drugs, antioxidants, and so on. The contamination of phenolic compounds in the natural environment is a toxic response that induces harsh impacts on plants, animals, and human health. This mini-review updates recent developments and trends of novel plasmonic resonance nanomaterials, which are assisted by various optical sensors, including colorimetric, fluorescence, localized surface plasmon resonance (LSPR), and plasmon-enhanced Raman spectroscopy. These advanced and powerful analytical tools exhibit potential application for ultrahigh sensitivity, selectivity, and rapid detection of phenol and its derivatives. In this report, we mainly emphasize the recent progress and novel trends in the optical sensors of phenolic compounds. The applications of Raman technologies based on pure noble metals, hybrid nanomaterials, and metal–organic frameworks (MOFs) are presented, in which the remaining establishments and challenges are discussed and summarized to inspire the future improvement of scientific optical sensors into easy-to-operate effective platforms for the rapid and trace detection of phenol and its derivatives.

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Section: Localized Surface Plasmon Resonance Phenomenon-based Optical Sensor For Phenolic Compoundsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recent Developments in Plasmonic Sensors of Phenol and Its Derivatives

Son

Kim

et al. 2021

Applied Sciences

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“…A possible solution would be to use sunlight as a sustainable energy source in combination with a suitable photocatalyst [ 8 , 9 , 10 ]. Semiconductors are a well-known class of photocatalyst, of which TiO 2 is an established example often used in applications because of its stability, cost effectiveness, and photocatalytic activity [ 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ]. However, because of its large bandgap (3.2 eV, anatase) TiO 2 only absorbs UV light which is equivalent to merely 4% of the total solar spectrum.…”

Section: Introductionmentioning

confidence: 99%

Sunlight-Powered Reverse Water Gas Shift Reaction Catalysed by Plasmonic Au/TiO2 Nanocatalysts: Effects of Au Particle Size on the Activity and Selectivity

et al. 2022

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This study reports the low temperature and low pressure conversion (up to 160 °C, p = 3.5 bar) of CO2 and H2 to CO using plasmonic Au/TiO2 nanocatalysts and mildly concentrated artificial sunlight as the sole energy source (up to 13.9 kW·m-2 = 13.9 suns). To distinguish between photothermal and non-thermal contributors, we investigated the impact of the Au nanoparticle size and light intensity on the activity and selectivity of the catalyst. A comparative study between P25 TiO2-supported Au nanocatalysts of a size of 6 nm and 16 nm displayed a 15 times higher activity for the smaller particles, which can only partially be attributed to the higher Au surface area. Other factors that may play a role are e.g., the electronic contact between Au and TiO2 and the ratio between plasmonic absorption and scattering. Both catalysts displayed ≥84% selectivity for CO (side product is CH4). Furthermore, we demonstrated that the catalytic activity of Au/TiO2 increases exponentially with increasing light intensity, which indicated the presence of a photothermal contributor. In dark, however, both Au/TiO2 catalysts solely produced CH4 at the same catalyst bed temperature (160 °C). We propose that the difference in selectivity is caused by the promotion of CO desorption through charge transfer of plasmon generated charges (as a non-thermal contributor).

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“…Instead of conventional heating, sunlight is an appealing and green alternative in the case of photo(thermal) catalysis. Catalysts comprising metal nanoparticles with a plasmonic resonance in the UVvis-NIR region are of interest for sunlight-powered reactions [6]. Based on their localized surface plasmon resonance (LSPR), light illumination induces a resonant response of free electrons in metallic nanoparticles [7,8].…”

Section: Introductionmentioning

confidence: 99%

Comparing the Performance of Supported Ru Nanocatalysts Prepared by Chemical Reduction of RuCl3 and Thermal Decomposition of Ru3(CO)12 in the Sunlight-Powered Sabatier Reaction

et al. 2022

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The preparation of Ru nanoparticles supported on γ-Al2O3 followed by chemical reduction using RuCl3 as a precursor is demonstrated, and their properties are compared to Ru nanoparticles supported on γ-Al2O3 prepared by impregnation of γ-Al2O3 with Ru3(CO)12 and subsequent thermal decomposition. The Ru nanoparticles resulting from chemical reduction of RuCl3 are slightly larger (1.2 vs. 0.8 nm). In addition, Ru nanoparticles were deposited on Stöber SiO2 using both deposition techniques. These particles were larger than the ones deposited on γ-Al2O3 (2.5 and 3.4 nm for chemical reduction and thermal decomposition, respectively). Taking into account the size differences between the Ru nanoparticles, all catalysts display similar activity (0.14–0.63 mol·gRu−1·h−1) and selectivity (≥99%) in the sunlight-powered Sabatier reaction. Ergo, the use of toxic and volatile Ru3(CO)12 can be avoided, since catalysts prepared by chemical reduction of RuCl3 display similar catalytic performance.

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Surface plasmon resonance-induced visible light photocatalytic TiO2 modified with AuNPs for the quantification of hydroquinone

Cited by 9 publications

References 71 publications

Recent Developments in Plasmonic Sensors of Phenol and Its Derivatives

Recent Developments in Plasmonic Sensors of Phenol and Its Derivatives

Sunlight-Powered Reverse Water Gas Shift Reaction Catalysed by Plasmonic Au/TiO2 Nanocatalysts: Effects of Au Particle Size on the Activity and Selectivity

Comparing the Performance of Supported Ru Nanocatalysts Prepared by Chemical Reduction of RuCl3 and Thermal Decomposition of Ru3(CO)12 in the Sunlight-Powered Sabatier Reaction

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