CdS-Modified TiO2 Nanotubes with Heterojunction Structure: A Photoelectrochemical Sensor for Glutathione

Huo, Guo-Na; Zhang, Shasha; Li, Yue-Liu; Li, Jiaxing; Yue, Zhao; Huang, Wei‐Ping; Zhang, Shoumin; Zhu, Baolin

doi:10.3390/nano13010013

Cited by 9 publications

(2 citation statements)

References 40 publications

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“…The composition of the fabricated CdSe/TiO 2 NTs was further investigated by XRD. As indicated in Figure a, all samples exhibit diffraction peaks at 2θ = 25.3, 37.8, 48.0, 53.9, 55.0, 68.8, and 75.1°, corresponding to (101), (004), (200), (105), (211), (116), and (215) crystallographic planes of anatase TiO 2 NTs (JCPDS 21-1272) . After CdSe was modified, new diffraction peaks at 2θ = 42.0 and 49.7° appear, corresponding to the (220) and (311) crystallographic planes of cubic sphalerite CdSe (JCPDS 19-0191), respectively .…”

Section: Resultsmentioning

confidence: 91%

CdSe/TiO₂NTs Heterojunction-Based Nonenzymatic Photoelectrochemical Sensor for Glucose Detection

Li,

Tian,

Shi

et al. 2023

Langmuir

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Compared with a single semiconductor, the heterojunction formed by two different semiconductors usually has higher light utilization and better photoelectric performance. By using stable TiO 2 nanotubes as the main subject, CdSe/TiO 2 NTs heterojunctions were synthesized by a hydrothermal method. XRD, TEM, SEM, PL, UV−vis, and EIS were used to characterize the fabricated CdSe/TiO 2 NTs. Under visible light irradiation, CdSe/TiO 2 NTs heterojunctions exhibited a higher absorption intensity and lower degree of photogenerated carrier recombination than TiO 2 . The electrons and holes were proven to be effectively separated in this heterojunction via theoretical calculation. Under CdSe/TiO 2 NTs' optimal conditions, the glucose concentrations (10−90 μM) had a linear relationship with the photocurrent value, and the detection limit was 3.1 μM. Moreover, the CdSe/ TiO 2 NTs sensor exhibited good selectivity and stability. Based on the experimental data and theoretical calculations, its PEC sensing mechanism was also illuminated.

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Section: Resultsmentioning

confidence: 91%

CdSe/TiO₂NTs Heterojunction-Based Nonenzymatic Photoelectrochemical Sensor for Glucose Detection

Li,

Tian,

Shi

et al. 2023

Langmuir

Self Cite

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“…Although CdS exhibits photoetching instability when used independently, the formation of composite nanomaterials with TiO 2 , characterized by a wider band gap, effectively reduces the likelihood of photogenerated electron–hole recombination. Thus, the strategic coupling of TiO 2 with CdS mitigates the photoetching instability associated with CdS alone and expands the spectral response range [ 14 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

C60- and CdS-Co-Modified Nano-Titanium Dioxide for Highly Efficient Photocatalysis and Hydrogen Production

Zhang,

Liang,

Gao

et al. 2024

Materials

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The inherent properties of TiO2, including a wide band gap and restricted spectral response range, hinder its commercial application and its ability to harness only 2–3% of solar energy. To address these challenges and unlock TiO2’s full potential in photocatalysis, C60- and CdS-co-modified nano-titanium dioxide has been adopted in this work to reduce the band gap, extend the absorption wavelength, and control photogenerated carrier recombination, thereby enhancing TiO2’s light-energy-harnessing capabilities and hydrogen evolution capacity. Using the sol-gel method, we successfully synthesized CdS-C60/TiO2 composite nanomaterials, harnessing the unique strengths of CdS and C60. The results showed a remarkable average yield of 34.025 μmol/h for TiO2 co-modified with CdS and C60, representing a substantial 17-fold increase compared to pure CdS. Simultaneously, the average hydrogen generation of C60-modified CdS surged to 5.648 μmol/h, a notable two-fold improvement over pure CdS. This work opens up a new avenue for the substantial improvement of both the photocatalytic degradation efficiency and hydrogen evolution capacity, offering promise of a brighter future in photocatalysis research.

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Advancements and Challenges in the Integration of Indium Arsenide and Van der Waals Heterostructures

Cheng,

Meng,

Luo

et al. 2024

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The strategic integration of low‐dimensional InAs‐based materials and emerging van der Waals systems is advancing in various scientific fields, including electronics, optics, and magnetics. With their unique properties, these InAs‐based van der Waals materials and devices promise further miniaturization of semiconductor devices in line with Moore's Law. However, progress in this area lags behind other 2D materials like graphene and boron nitride. Challenges include synthesizing pure crystalline phase InAs nanostructures and single‐atomic‐layer 2D InAs films, both vital for advanced van der Waals heterostructures. Also, diverse surface state effects on InAs‐based van der Waals devices complicate their performance evaluation. This review discusses the experimental advances in the van der Waals epitaxy of InAs‐based materials and the working principles of InAs‐based van der Waals devices. Theoretical achievements in understanding and guiding the design of InAs‐based van der Waals systems are highlighted. Focusing on advancing novel selective area growth and remote epitaxy, exploring multi‐functional applications, and incorporating deep learning into first‐principles calculations are proposed. These initiatives aim to overcome existing bottlenecks and accelerate transformative advancements in integrating InAs and van der Waals heterostructures.

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CdS-Modified TiO2 Nanotubes with Heterojunction Structure: A Photoelectrochemical Sensor for Glutathione

Cited by 9 publications

References 40 publications

CdSe/TiO₂NTs Heterojunction-Based Nonenzymatic Photoelectrochemical Sensor for Glucose Detection

CdSe/TiO₂NTs Heterojunction-Based Nonenzymatic Photoelectrochemical Sensor for Glucose Detection

C60- and CdS-Co-Modified Nano-Titanium Dioxide for Highly Efficient Photocatalysis and Hydrogen Production

Advancements and Challenges in the Integration of Indium Arsenide and Van der Waals Heterostructures

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CdS-Modified TiO2 Nanotubes with Heterojunction Structure: A Photoelectrochemical Sensor for Glutathione

Cited by 9 publications

References 40 publications

CdSe/TiO2NTs Heterojunction-Based Nonenzymatic Photoelectrochemical Sensor for Glucose Detection

CdSe/TiO2NTs Heterojunction-Based Nonenzymatic Photoelectrochemical Sensor for Glucose Detection

C60- and CdS-Co-Modified Nano-Titanium Dioxide for Highly Efficient Photocatalysis and Hydrogen Production

Advancements and Challenges in the Integration of Indium Arsenide and Van der Waals Heterostructures

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Product

Resources

About

CdSe/TiO₂NTs Heterojunction-Based Nonenzymatic Photoelectrochemical Sensor for Glucose Detection

CdSe/TiO₂NTs Heterojunction-Based Nonenzymatic Photoelectrochemical Sensor for Glucose Detection