Light regulated heterojunctions with tunable interfacial energy barriers for sensitive and specific detection of copper ions

Ma, Ye; Li, Ming; Li, Zhengming; Zhao, Minggang

doi:10.1016/j.cej.2021.133880

Cited by 12 publications

(2 citation statements)

References 31 publications

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“…For the Ni/NiO/CeO 2 /PANI foam, NiO and CeO 2 gain electrons from the negatively charged layer, and their conduction bands reduce. In this case, the height of the p-n junction barrier also decreases ( Φ pn < 0) [30], resulting in the increased electrochemical current. Since the band of the Schottky barrier reduces on one side, | Φ S | > | Φ pn |.…”

Section: Electrochemical Detectionmentioning

confidence: 99%

Using Multistage Energy Barrier of Heterojunctions in Improving Cr(VI) Detection

Zhao,

He,

Dong

et al. 2023

Materials

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Detecting heavy metals in seawater is challenging due to the high salinity and complex composition, which cause strong interference. To address this issue, we propose using a multistage energy barrier as an electrochemical driver to generate electrochemical responses that can resist interference. The Ni-based heterojunction foams with different types of barriers were fabricated to detect Cr(VI), and the effects of the energy barriers on the electrochemical response were studied. The single-stage barrier can effectively drive the electrochemical response, and the multistage barrier is even more powerful in improving sensing performance. A prototype Ni/NiO/CeO2/Au/PANI foam with multistage barriers achieved a high sensitivity and recovery rate (93.63–104.79%) in detecting seawater while resisting interference. The use of multistage barriers as a driver to resist electrochemical interference is a promising approach.

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Section: Electrochemical Detectionmentioning

confidence: 99%

Using Multistage Energy Barrier of Heterojunctions in Improving Cr(VI) Detection

Zhao,

He,

Dong

et al. 2023

Materials

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“…Trace metal ions, particularly Cu 2+ , play crucial roles in the structure and function of many proteins and are vital for metabolic processes. [1][2][3] However, too much Cu 2+ can cause harmful effects such as inhibiting key enzymes, disrupting normal redox reactions and damaging the nervous system. [4][5][6] Cu 2+ can contaminate water sources through various activities, such as mining, farming, manufacturing and waste disposal due to its extensive use in agriculture and industry.…”

Section: Introductionmentioning

confidence: 99%

Photoelectrochemical detection of copper ions based on a covalent organic framework with tunable properties

Li,

Hou,

Jiang

et al. 2024

Analyst

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Metal-organic framework-enabled surface state passivation integrating with single-nuclease-propelled multistage amplification for ultrasensitive lab-on-paper photoelectrochemical biosensing

Tan²,

Zhang³

et al. 2022

Chemical Engineering Journal

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Light regulated heterojunctions with tunable interfacial energy barriers for sensitive and specific detection of copper ions

Cited by 12 publications

References 31 publications

Using Multistage Energy Barrier of Heterojunctions in Improving Cr(VI) Detection

Using Multistage Energy Barrier of Heterojunctions in Improving Cr(VI) Detection

Photoelectrochemical detection of copper ions based on a covalent organic framework with tunable properties

Metal-organic framework-enabled surface state passivation integrating with single-nuclease-propelled multistage amplification for ultrasensitive lab-on-paper photoelectrochemical biosensing

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