Ultra-Weak Chemiluminescence Enhanced by Cerium-Doped LaF3 Nanoparticles: A Potential Nitrite Analysis Method

Wang, Yufei; Wang, Yanran; Huang, Chunxia; Chen, Tianyou; Wu, Jing

doi:10.3389/fchem.2020.00639

Cited by 13 publications

(5 citation statements)

References 50 publications

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“…Nanomaterials introduced into liquid-phase CL systems generally act as catalysts [35] and luminophores [36,37]. To elucidate the role of Co-MOF and the main light emission species of the system, the CL spectra of the Co-MOF-NaIO 4 -H 2 O 2 system were collected using a transient fluorescence spectrometer.…”

Section: Mechanism Of the Co-mof-naio 4 -H 2 O 2 Systemmentioning

confidence: 99%

Pyrogallol Detection Based on the Cobalt Metal–Organic Framework of Nanomaterial-Enhanced Chemiluminescence

Wang

Liu

et al. 2023

Chemosensors

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The cobalt metal–organic framework (Co-MOF) is a kind of crystalline porous material within a periodic network structure, which is formed via the self-assembly of a Co metal center and a bridged organic ligand. In this paper, a Co-MOF was facilely synthesized via an ultrasonic method and applied to enhance the chemiluminescence (CL) emission of the NaIO4-H2O2 system. The synthesized Co-MOF was nanosheet-like in nature and stacked in 2–3-micrometer flower shapes. Compared to the NaIO4-H2O2 system without a Co-MOF, the CL intensity of the Co-MOF-NaIO4-H2O2 system was enhanced about 70 times. This CL mechanism was determined to be a result of the synergistic effects of chemiluminescence resonance energy transfer (CRET) and electron–hole annihilation (EHA). The Co-MOF not only acted as a catalyst to accelerate the generation of reactive oxygen species in the CL reaction, but also worked as an emitter to further enhance the CL. Based on the Co-MOF-NaIO4-H2O2 system, a highly sensitive CL analysis method was established for pyrogallol (PG) detection. Addition of PG into the CL system generated 1O2*, which could transfer energy to the Co-MOF and further enhance the CL response. The enhanced CL was linear with the PG concentration. The CL analysis method exhibited a linear range of 1 × 10−4 M to 1 × 10−7 M, as well as having a linear correlation coefficient of 0.9995 and a limit of detection of (S/N = 3) of 34 nM.

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Section: Mechanism Of the Co-mof-naio 4 -H 2 O 2 Systemmentioning

confidence: 99%

Pyrogallol Detection Based on the Cobalt Metal–Organic Framework of Nanomaterial-Enhanced Chemiluminescence

Wang

Liu

et al. 2023

Chemosensors

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“…Therefore, monitoring whether the amount of nitrite in food is excessive is essential to protect human health, requiring the accurate and timely monitoring of nitrite in food samples. Some methods for the determination of nitrite have been proposed in recent years, such as spectrophotometry [ 4 ], the chemiluminescence method [ 5 ], capillary ion chromatography [ 6 ], capillary electrophoresis [ 7 ], the fluorescence method [ 8 ], the electrochemical sensing method [ 9 ], etc. Particularly, the electrochemical sensing method has attracted more attention because of its simple operation, high sensitivity, and rapid response time.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a Disposable Amperometric Sensor for the Determination of Nitrite in Food

et al. 2023

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Silver nanoparticles (AgNPs) were synthesized through an environmentally friendly method with tea extract as a reduction agent. By immobilizing them on the surface of a low-cost pencil graphite electrode (PGE) with the aid of a simple and well-controlled in-situ electropolymerization method, a novel nanosensing interface for nitrite was constructed. The film-modified PGE showed good electrocatalytic effects on the oxidation of nitrite and was characterized through scanning electron microscopy, X-ray photoelectron spectroscopy, and electrochemical techniques. Characterization results clearly show that the successful modification of AgNPs improved the surface area and conductivity of PGEs, which is beneficial to the high sensitivity and short response time of the nitrite sensor. Under the optimal detection conditions, the oxidation peak current of nitrite had a good linear relationship with its concentration in the range of 0.02–1160 μmol/L with a detection limit of 4 nmol/L and a response time of 2 s. Moreover, the sensor had high sensitivity, a wide linear range, a good anti-interference capability, and stability and reproducibility. Additionally, it can be used for the determination of nitrite in food.

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“…Many techniques have been used to synthesize lanthanide-based nanocrystals. In previous research [7], cerium-doped LaF3 nanoparticles (LaF3:Ce NPs) were successfully synthesized using hydrothermal reaction [7]. In other papers, cerium and alanine-doped LaF3 nanocrystals have been synthesized from water-soluble chlorides in distilled water and then dried in a microwave oven to reduce agglomeration [8].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of LaF3:Ce Scintillator Material

Sukirman,

Purwamargapratala,

Sugeng

et al. 2023

Jurnal Sains Materi Indonesia

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Synthesis and Characterization of LaF3:Ce Scintillator Material.Synthesis and characterization of the LaF3:Ce scintillator have been carried out. Synthesis was carried out using the co-precipitation method. In this study, the raw materials used were NaF, LaCl3•7H2O, and Ce(NO3)3•6H2O with ethanol and distilled water as a solvent; while surfactants were used oleic acid. In this study, the compound LaF3:0.2Ce was synthesized. The sample was characterized by using an X-Ray Diffractometer (XRD), a Scanning Electron Microscope (SEM), and a Spectrofluorometer. The analyzed data showed that the 82.6 weight fraction of LaF3:0.2Ce phase has precipitated accompanied by the formation of NaCl and C2Ce phases of 5.1 and 12.3 weight fraction, respectively. The NaCl phase is a by-product of the chemical reaction: xLaCl3•7H2O + zCeCl3•7H2O + 3NaF → LaxCezF3 + 3NaCl + 7H2O which could be removed from the precipitate solution by an appropriate separation method, while the C2Ce one appeared as a result of heating the sample at 400ºC. The LaF3:Ce scintillator sample shows the phenomenon of a bluish glow with a lifetime, t = 6 × 10-10 seconds even in the presence of a foreign phase. The existence of NaCl and C2Ce as a local environment still makes LaF3:0.2Ce has normal lifetime characteristics.

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Ultra-Weak Chemiluminescence Enhanced by Cerium-Doped LaF3 Nanoparticles: A Potential Nitrite Analysis Method

Cited by 13 publications

References 50 publications

Pyrogallol Detection Based on the Cobalt Metal–Organic Framework of Nanomaterial-Enhanced Chemiluminescence

Pyrogallol Detection Based on the Cobalt Metal–Organic Framework of Nanomaterial-Enhanced Chemiluminescence

Fabrication of a Disposable Amperometric Sensor for the Determination of Nitrite in Food

Synthesis and Characterization of LaF3:Ce Scintillator Material

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