Biomass-derived carbon dots as emerging visual platforms for fluorescent sensing

Yuan, Lili; Shao, Congying; Zhang, Qian; Webb, Erin; Zhao, Xianhui; Lu, Shun

doi:10.1016/j.envres.2024.118610

Cited by 8 publications

(4 citation statements)

References 134 publications

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“…Another approach is to modify the surface of BiOCl with conductive carbon materials, which could facilitate the separation of electrons from BiOCl and prolong the carriers' lifetime. 22,23 Besides, integrating BiOCl with another semiconductor to form a Type-II or Z-scheme heterojunction could also efficiently enhance the separation of photoelectrons/ holes. 11,24−26 On the other hand, controlling the structure of BiOCl could also assist in optimizing its photocatalytic activity.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Moreover, the dopants on the surface of BiOCl might favor the adsorption of reactants and the trapping of photoelectrons. Another approach is to modify the surface of BiOCl with conductive carbon materials, which could facilitate the separation of electrons from BiOCl and prolong the carriers’ lifetime. , Besides, integrating BiOCl with another semiconductor to form a Type-II or Z-scheme heterojunction could also efficiently enhance the separation of photoelectrons/holes. ,− …”

Section: Introductionmentioning

confidence: 99%

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Photocatalytic Degradation of Tetracycline Hydrochloride Based on the Structure–Property Exploration of BiOCl

Zhou,

Ji,

et al. 2024

Langmuir

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The correlation between structure and properties in the photodegradation reaction of bismuth oxychloride (BiOCl) was explored in this work. Three BiOCl samples with different sizes, morphological structures, and defects were prepared through a hydrothermal method with experimental manipulation. Their structural properties were comprehensively characterized using Xray diffraction, scanning electron microscopy, transmission electron microscopy, electron spin resonance, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, ultraviolet− visible diffuse reflectance spectroscopy, and photoluminescence. Taking the photodegradation of tetracycline hydrochloride (TC-HCl) as the probe reaction, we found that high activity could be achieved by decreasing their crystal size and thickness, introducing proper defects in the structure, and assembling the nanosheets to get microball structure. Combined with radical-scavenge experiments and electron spin resonance (ESR) spin-trap spectra, we conclude that Ȯ2 − was the dominant reactive oxygen species for the degradation reaction. The degradation detailed pathway of TC-HCl was further analyzed using liquid chromatography−mass spectrometry. This work explores the structure−property correlation of BiOCl and provides strategies for the rational design of active photocatalysts for water remediation.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation of Tetracycline Hydrochloride Based on the Structure–Property Exploration of BiOCl

Zhou,

Ji,

et al. 2024

Langmuir

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“…High levels of Al 3+ ions can damage the body’s immune system and may also harm the central nervous system . The accumulation of high levels can cause various diseases in the body, such as Alzheimer’s disease, Parkinson’s disease, and related bone diseases. ,, Due to the biological effects of Al 3+ ions, the World Health Organization (WHO) has set the permissible concentration of Al 3+ ions in drinking water to below 7.41 μM . Surpassing this threshold can have negative effects on human health.…”

Section: Introductionmentioning

confidence: 99%

“…Various strategies for sensitive detection of Al 3+ ions include colorimetry, atomic absorption spectrometry, mass spectrometry (MS), electrochemical methods, and fluorescence techniques. − While MS and atomic absorption spectrometry yield accurate results, they are hindered by complex operation and nonportable equipment . The colorimetric method is cost-effective and easy to monitor, but its nonquantitative detection process limits its applicability .…”

Section: Introductionmentioning

confidence: 99%

Ligand-Induced Red-Emitting Copper Nanoclusters for Selective Fluorescence Determination of Aluminum Ions

Yuan,

Zhang,

et al. 2024

Inorg. Chem.

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Monitoring levels of excessive aluminum ions (Al 3+ ) is crucial as it can harm the immune system, reduce enzyme activity, cause cell death, and damage environmental and biological systems. Developing a fast and efficient Al 3+ ion determination method is the key to addressing this issue. In this work, red-emitting fluorescent copper nanoclusters (CuNCs) were synthesized using N-acetyl-L-cysteine (NAC) as a ligand and CuCl 2 •2H 2 O through a facile procedure. The NAC-CuNCs exhibited a large Stokes shift and displayed remarkable luminescence properties. A method for detecting Al 3+ through a fluorescence probe was proposed. Its fluorescence mechanism was also explored. The probe showed rapid responsiveness (within 1 min) to Al 3+ ion determination. The detection limit for Al 3+ was found to be 19.7 nM, which is significantly lower than the WHO's value and most reports, with a linear range of 0−52.9 μM. The determination of Al 3+ concentrations in actual water using the fluorescence probe yielded satisfactory outcomes. Moreover, the visual detection of Al 3+ ions was also achieved through a smartphone, which can enhance its fast and practical detection.

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Recent advances in the application of copper nanocluster and copper nanoparticle in water for heavy metals detection: A review

Sharma,

Ganguly,

Doi

et al. 2024

Environmental Nanotechnology, Monitoring & Management

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Biomass-derived carbon dots as emerging visual platforms for fluorescent sensing

Cited by 8 publications

References 134 publications

Photocatalytic Degradation of Tetracycline Hydrochloride Based on the Structure–Property Exploration of BiOCl

Photocatalytic Degradation of Tetracycline Hydrochloride Based on the Structure–Property Exploration of BiOCl

Ligand-Induced Red-Emitting Copper Nanoclusters for Selective Fluorescence Determination of Aluminum Ions

Recent advances in the application of copper nanocluster and copper nanoparticle in water for heavy metals detection: A review

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