Enhanced Interface Charge Carrier Transport of SnO<sub>2</sub>/CeO<sub>2</sub> via Oxygen Vacancy Synergized Heterojunction for Triethylamine Sensing Property

Liu, Jinmei; Feng, Shaohan; Sun, Lixia; Wei, Xu; Chen, Lingling; Liao, Dankui; Sun, Jianhua

doi:10.1021/acs.langmuir.4c00692

Langmuir

2024

DOI: 10.1021/acs.langmuir.4c00692

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Enhanced Interface Charge Carrier Transport of SnO₂/CeO₂ via Oxygen Vacancy Synergized Heterojunction for Triethylamine Sensing Property

Jinmei Liu,

Shaohan Feng,

Lixia Sun

et al.

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Cited by 4 publications

References 56 publications

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Facile one-step hydrothermal synthesis of SnO2/SnO p-n heterostructure gas sensor enables efficient NO2 detection

Jia,

Liu,

Liu

et al. 2025

Sensors and Actuators A: Physical

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Facile one-step hydrothermal synthesis of SnO2/SnO p-n heterostructure gas sensor enables efficient NO2 detection

Jia,

Liu,

Liu

et al. 2025

Sensors and Actuators A: Physical

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Silicate Derived from Phaeodactylum tricornutum for Removal of Polystyrene: Interfacial Effects of Living Organism and Its Derivatives with Nanoplastics

Yu,

Huang,

et al. 2024

Langmuir

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The deposition of nanoplastics in the environment poses a direct threat to human health through the food chain.There is an urgent need to investigate how they can be effectively removed from water. In this work, the toxic effects of nanopolystyrene (PS) at different concentrations on Phaeodactylum tricornutum (PT) were investigated. The results show that PS affects the cell activity of PT through cell wall adhesion and shading effect and hinders the transmission of light energy, thus inhibiting the growth of PT. Considering that living PT is not suitable for the removal of heterogeneous aggregation of PS, magnesium silicate (MS) was obtained by calcination of PT biomass based on retaining salt. The maximum adsorption capacity of PS by MS was 40.85 mg g −1 , which was 10 times higher than that of conventional adsorbents. The presence of competitive anions significantly affects the removal of PS. The application in real water bodies and the reusability of the adsorbents were also verified. By characterizing the materials before and after adsorption, it is found that the adsorption mechanism mainly includes electrostatic attraction, hydrogen bonding, π−π interaction, and complexation between Si−O bond and PS. This study explains the toxic effect of nano-PS on PT and innovatively develops a biomass derivative from diatoms, which provides a novel and feasible strategy for environmental remediation.

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Ultrasensitive Room Temperature Formaldehyde Sensors Based on F Doped ZnO Nanostructures Activated by UV Light

Guo,

Chen,

Chen

et al. 2024

Langmuir

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It is urgent to develop an ultrasensitive formaldehyde (HCHO) sensor that can operate at room temperature and has a low detection limit. Metal oxide semiconductors are excellent gas sensitive materials. Therefore, in this paper, we present the synthesis of fluorine (F) doped zinc oxide (ZnO) porous nanomaterials through a straightforward one-pot method with the optimization of F doping levels to achieve the detection of low concentrations of HCHO under UV light at room temperature. Under 375 nm UV light, the sensor exhibits a response value of 386% to 10 ppm of HCHO, which is 2.6 times higher than that of pure ZnO, and its detection limit is as low as 75 ppb. It has excellent selectivity, stability, and moisture resistance, which can meet the requirements of HCHO detection in daily life. Analysis reveals that doping ZnO with F not only increases the material's specific surface area but also introduces active sites. Furthermore, it alters the state of HCHO on the material's surface from physical adsorption to chemical adsorption. The above reasons together enhance the adsorption of HCHO on the gas sensitive material, thereby improving its gas sensitivity performance. Overall, this work demonstrates that F-doped ZnO is a potential material for ultrasensitive HCHO sensors and provides insights into the interpretation of the effect of doping on the gas sensitivity properties of materials.

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Enhanced Interface Charge Carrier Transport of SnO₂/CeO₂ via Oxygen Vacancy Synergized Heterojunction for Triethylamine Sensing Property

Cited by 4 publications

References 56 publications

Facile one-step hydrothermal synthesis of SnO2/SnO p-n heterostructure gas sensor enables efficient NO2 detection

Facile one-step hydrothermal synthesis of SnO2/SnO p-n heterostructure gas sensor enables efficient NO2 detection

Silicate Derived from Phaeodactylum tricornutum for Removal of Polystyrene: Interfacial Effects of Living Organism and Its Derivatives with Nanoplastics

Ultrasensitive Room Temperature Formaldehyde Sensors Based on F Doped ZnO Nanostructures Activated by UV Light

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Enhanced Interface Charge Carrier Transport of SnO2/CeO2 via Oxygen Vacancy Synergized Heterojunction for Triethylamine Sensing Property

Cited by 4 publications

References 56 publications

Facile one-step hydrothermal synthesis of SnO2/SnO p-n heterostructure gas sensor enables efficient NO2 detection

Facile one-step hydrothermal synthesis of SnO2/SnO p-n heterostructure gas sensor enables efficient NO2 detection

Silicate Derived from Phaeodactylum tricornutum for Removal of Polystyrene: Interfacial Effects of Living Organism and Its Derivatives with Nanoplastics

Ultrasensitive Room Temperature Formaldehyde Sensors Based on F Doped ZnO Nanostructures Activated by UV Light

Contact Info

Product

Resources

About

Enhanced Interface Charge Carrier Transport of SnO₂/CeO₂ via Oxygen Vacancy Synergized Heterojunction for Triethylamine Sensing Property