Surface charge-directed borophene–phosphorous nitride nanodot heterojunction supports for enhanced photoelectrochemical performance

Mohanta, M K; Qureshi, Mohammad

doi:10.1039/d2cc05900b

Cited by 5 publications

(6 citation statements)

References 32 publications

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“…Also, experimental investigations on borophene nanodot-based heterojunction displayed its potential for photoelectrochemical (PEC) water splitting. [83] The electrocatalytic HER activities of the above-discussed borophene-based catalysts were comparable to various 2D material-based catalysts from recent literature. Handoko et al [84] reported that the basal planes of a Mo-based MXene like Mo 2 CT x are active towards HER and showed η 10 of 189 mV and Tafel slope of 75 mV dec À 1 .…”

Section: Hydrogen Evolution Reaction (Her) and Oxygen Evolution React...supporting

confidence: 67%

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2D Boron Nanosheets for Photo‐ and Electrocatalytic Applications

Pratihar,

Jana,

Kumar De

et al. 2024

ChemCatChem

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Borophene, a new member of the two‐dimensional (2D) materials family, has attracted researchers since its first experimental synthesis. Borophene (2D boron nanosheet) differs significantly from other 2D materials due to its low energy requirement to form defects, anisotropy, electron‐deficient structure, multicentered bonding, etc. The uniqueness in properties of borophene compared to other 2D materials makes it suitable for applications in catalysis, sensing, energy storage, etc. The present review summarizes the development of borophene synthesis and emphasizes its applications in catalysis. Different synthesis approaches and their advantages and limitations are discussed briefly as substantial reviews are available on borophene synthesis. The applications of pristine borophene and their modified heterostructure in the field of catalysis were thoroughly reviewed, focusing on the electrocatalysis applications. Finally, the review discussed the future scope of borophene in designing new materials as well as opportunities to be utilized for other application fields. Since there is a lack of a good number of experimental reports on the applications of borophene and its derivatives, a huge opportunity is waiting for the researchers to explore the unknown world of borophene. In this regard, this review will help the researchers in an excellent manner.

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Section: Hydrogen Evolution Reaction (Her) and Oxygen Evolution React...supporting

confidence: 67%

“…Lastly, some research groups have explored various configurations derived from borophene, such as borophene nanoribbons, [81] borophene nanotubes, [82] borophene nanodots, [83] etc. The exciting activity of borophene nanoribbons and borophene nanotubes towards HER was explored through DFT studies.…”

Section: Catalytic Applicationsmentioning

confidence: 99%

2D Boron Nanosheets for Photo‐ and Electrocatalytic Applications

Pratihar,

Jana,

Kumar De

et al. 2024

ChemCatChem

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“…The zeta potential measurements in Figure S5 evidenced the negative surface charge of borophene QDs at higher pH. In addition, Mohanta and Qureshi in 2023 also reported a zeta potential value (ς) of −26.2 mV for borophene dots . The effect of catalyst loading was evaluated by adding 15 –300 μL of QDs from the stock solution for the TMB oxidation reaction (Figure b).…”

Section: Resultsmentioning

confidence: 95%

“…In addition, Mohanta and Qureshi in 2023 also reported a zeta potential value (ς) of −26.2 mV for borophene dots. 53 The effect of catalyst loading was evaluated by adding 15 −300 μL of QDs from the stock solution for the TMB oxidation reaction (Figure 5b). The highest A 652 was obtained using 250 μL of QD solution for TMB chromogenic substrate.…”

Section: Resultsmentioning

confidence: 99%

Borophene Quantum Dots as Novel Peroxidase-Mimicking Nanozyme: A Dual-Mode Assay for the Detection of Oxytetracycline and Tetracycline Antibiotics

Gogoi,

Hazarika,

Neog

et al. 2024

ACS Appl. Mater. Interfaces

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The greater advantages and wide applications of zero-dimensional nanodots inspire researchers to develop new materials. Therefore, novel borophene quantum dots (QDs) were prepared by a hydrothermal liquid exfoliation technique using water medium. The borophene QDs proved to be highly stable in water medium for more than 120 days. The synthesized borophene QDs revealed intrinsic peroxidase mimetic activity using two chromogenic substrates, 3,3′,5,5′-tetramethylbenzidine (TMB) and 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)diammonium salt (ABTS). The excellent intrinsic peroxidase activity toward TMB and ABTS substrates was executed using optimal reaction conditions (pH, borophene QDs' concentration, incubation time, and temperature). The formation of hydroxyl radicals in the presence of H 2 O 2 upon TMB and ABTS oxidation played a significant role in the peroxidase reaction. The borophene QDs further proved to be successful for the colorimetric detection of antibiotics (oxytetracycline and tetracycline) using both TMB and ABTS peroxidase substrates. The limit of detection (LOD) for oxytetracycline and tetracycline was found to be 1.10 and 1.02 μM using TMB and 1.03 and 1.02 μM using ABTS chromogenic substrates, respectively. In addition, the fluorescence sensing of oxytetracycline and tetracycline over borophene QDs was also examined. The high fluorescence of borophene QDs (turn ON) was quenched (turn OFF) by oxytetracycline and tetracycline through the inner filter effect mechanism. The LOD of the fluorescence sensing of oxytetracycline and tetracycline was 1.14 and 1.08 μM, respectively. Interestingly, the borophene QDs could be used for the sensitive and selective colorimetric and fluorometric sensing of oxytetracycline and tetracycline after 120 days of storage. The synthesized borophene QDs with long-term stability and real sample analysis provide new insight as nanozymes with higher peroxidase mimetic and fluorescence performance and can be further exploited for medical diagnosis and environmental toxicants' detection.

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“…The borophene dot size was found to be 10 nm with an interplanar distance of 0.19 nm using TEM and HR-TEM, and other physicochemical validation were carried out using XRD, XPS, ultraviolet-visible spectroscopy, and photoluminescence spectroscopy. 38,39…”

Section: Synthesis Of Borophene Nanomaterialsmentioning

confidence: 99%