Bandgap matching-triggered self-sustaining photocatalytic oxidation

Cheng, Weiwei; Yuan, Zhiqin; Lin, Yanjun; Chen, Lu

doi:10.1039/d3cy00625e

Cited by 2 publications

(2 citation statements)

References 66 publications

(78 reference statements)

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“…As shown in Figure S13 (Supporting Information), the corresponding Kubelka–Munk plots of CdAl-LDHs were obtained based on the absorption profiles. The bandgap widths of CdAl-LDHs and CN were calculated based on our previous works …”

Section: Resultsmentioning

confidence: 99%

“…44 The reduction peak around −1.15 V of the CdAl-LDH-modified electrode was attributed to the electron injection of the conduction band in CdAl-LDH. The reduction peak of S 2 O 8 2− shifted from −0.8 45 As displayed in Figure 5b, the energy band gaps (E g ) of CdAl-LDH-30.8%, CdAl-LDH-38.8%, CdAl-LDH-41.3%, CdAl-LDH-48.4%, and CdAl-LDH-59.2% were determined to be 3.62, 3.50, 3.39, 3.28, and 3.13 eV, respectively. It is obvious that the increased crystallinity of CdAl-LDHs would lead to a decrease in the bandgap width, an increase in the conductivity, and thus promote electron transfer.…”

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confidence: 96%

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Electron Transfer Efficiency-Regulated Electrochemiluminescence for Rapid Crystallinity Analysis in Layered Materials

Jia,

Fan,

et al. 2024

Anal. Chem.

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The electrochemiluminescence (ECL) signal is largely determined by the electron transfer efficiency. Therefore, in the nanomaterial-involved ECL system, the structure-related electron distribution could affect the electron transfer efficiency and further alter the ECL intensity. These features make the design of versatile ECL-based analytical techniques for probing the correlated structure possible. And it is generally accepted that the increased crystallinity of nanomaterials usually leads to a uniform electron distribution, which provides higher conductivity. Therefore, the crystallinity-improved conductivity could facilitate electron transfer, promote the electrochemical activity of support materials, and boost the efficiency of the ECL reaction. In this study, we have demonstrated that the ECL signal of the graphitic carbon nitride reporter was proportional to the crystallinity of layered double hydroxides (LDHs), which meets the supposition well. On the basis of this phenomenon, an ECL-based crystallinity analysis approach has been established using CdAl-LDHs as the model materials. The universality of this proposed technique was further validated by the rapid and accurate crystallinity determination of ZnAl-LDH samples with diverse crystallinities. This work not only contributes an alternative to the X-ray diffraction technique for the rapid screening of crystallinity in layered materials but also opens a new avenue for the design of ECL-based structure analysis techniques toward nanomaterials and even organic materials by involving electron transfer regulation correlation.

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 96%

Electron Transfer Efficiency-Regulated Electrochemiluminescence for Rapid Crystallinity Analysis in Layered Materials

Jia,

Fan,

et al. 2024

Anal. Chem.

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Synthesis of Mesoporous SiO₂ Nanomicrospheres for the Efficient Cataluminescence Sensing of Isobutyraldehyde

Zhang,

Zhao,

Ban

et al. 2024

ACS Appl. Nano Mater.

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Cataluminescence (CTL) sensors are among the most simple, inexpensive, sensitive, and selective tools for gas sensing. This study presented a highly efficient and selective CTL sensor system based on mesoporous SiO2 nanomicrospheres for the quick and sensitive analysis of isobutyraldehyde. Furthermore, its response intensity was 12.7 times higher than that of a nonmesoporous SiO2-based sensor. The constructed CTL sensor exhibited a good linear range (R 2 = 0.997) for detecting isobutyraldehyde, spanning 3.11–311 ppm, with a low detection limit of 1.1 ppm. This enabled successful analysis of trace isobutyraldehyde in real samples. Finally, the CTL mechanism of this sensor was further explored. This study presents an approach for the quality detection of an important volatile organic compound, isobutyraldehyde, by a mesoporous-based CTL sensor.

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Bandgap matching-triggered self-sustaining photocatalytic oxidation

Abstract: The exploration of novel photocatalytic systems with inner light source and less energy consumption is desirable to further extend the application of photocatalytic oxidation technique. An intelligent route is to...

Cited by 2 publications

References 66 publications

Electron Transfer Efficiency-Regulated Electrochemiluminescence for Rapid Crystallinity Analysis in Layered Materials

Electron Transfer Efficiency-Regulated Electrochemiluminescence for Rapid Crystallinity Analysis in Layered Materials

Synthesis of Mesoporous SiO₂ Nanomicrospheres for the Efficient Cataluminescence Sensing of Isobutyraldehyde

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Bandgap matching-triggered self-sustaining photocatalytic oxidation

Abstract: The exploration of novel photocatalytic systems with inner light source and less energy consumption is desirable to further extend the application of photocatalytic oxidation technique. An intelligent route is to...

Cited by 2 publications

References 66 publications

Electron Transfer Efficiency-Regulated Electrochemiluminescence for Rapid Crystallinity Analysis in Layered Materials

Electron Transfer Efficiency-Regulated Electrochemiluminescence for Rapid Crystallinity Analysis in Layered Materials

Synthesis of Mesoporous SiO2 Nanomicrospheres for the Efficient Cataluminescence Sensing of Isobutyraldehyde

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Product

Resources

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Synthesis of Mesoporous SiO₂ Nanomicrospheres for the Efficient Cataluminescence Sensing of Isobutyraldehyde