Carbon Dot-Laponite Hybrid Nanocomposites as Selective Turn-Off Sensors for Hg2+ Detection and Photoluminescence Quenching Mechanism DOI Creative Commons
Bruno Seiki Domingos Onishi, Albano N. Carneiro Neto, Sidney J. L. Ribeiro

и другие.

ACS Omega, Год журнала: 2024, Номер 9(52), С. 51204 - 51212

Опубликована: Дек. 17, 2024

Motivated by the importance of Hg2+ detection in water due to its harmful effect on environment and human health, we investigated a recently developed nanocomposite based carbon dots (CDs) LAPONITE as an optical chemical sensor using photoluminescence emission. While several studies have reported CDs' emission, there is lack in-depth investigation into quenching mechanisms involved turn-off sensors. In this study, propose Stern–Volmer analysis at three different temperatures (288, 298, 303 K). The results indicated selectivity for over that other evaluated metal. optimum range was found be 1–40 μM, with limits quantification 2.5 8.3 respectively. Using models, static dominates collisional quenching, possibly complexation between nanocomposite's carboxylate groups Hg2+. Additionally, modified model, which accounts fractional accessibility fluorophores quenchers, suggests some parts are inaccessible quencher.

Язык: Английский

Laponite cascade assembly activated reversible multicolor luminescence supramolecular hydrogel with near-infrared emission DOI
Rong Zhang, Yong Chen,

Zhiyi Yu

и другие.

Chinese Chemical Letters, Год журнала: 2025, Номер unknown, С. 111147 - 111147

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

1
Regulating the microstructure and hydrophilicity of cellulose nanofibers using taurine and the application in humidity sensor and actuator DOI
Zhimao Li,

Kaixu Song,

Qian Wu

и другие.

Chemical Engineering Journal, Год журнала: 2024, Номер 498, С. 154923 - 154923

Опубликована: Авг. 17, 2024

Язык: Английский

Процитировано

5
Metal-enhanced fluorescence (MEF) effect based on silver nanoparticles with different UV spectra on a surface carbon dot-based novel dry platform DOI
Jia An, Nan Hu,

Chengyue Yin

и другие.

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Год журнала: 2024, Номер 322, С. 124744 - 124744

Опубликована: Июль 3, 2024

Язык: Английский

Процитировано

1
Carbon Dot-Laponite Hybrid Nanocomposites as Selective Turn-Off Sensors for Hg2+ Detection and Photoluminescence Quenching Mechanism DOI Creative Commons
Bruno Seiki Domingos Onishi, Albano N. Carneiro Neto, Sidney J. L. Ribeiro

и другие.

ACS Omega, Год журнала: 2024, Номер 9(52), С. 51204 - 51212

Опубликована: Дек. 17, 2024

Motivated by the importance of Hg2+ detection in water due to its harmful effect on environment and human health, we investigated a recently developed nanocomposite based carbon dots (CDs) LAPONITE as an optical chemical sensor using photoluminescence emission. While several studies have reported CDs' emission, there is lack in-depth investigation into quenching mechanisms involved turn-off sensors. In this study, propose Stern–Volmer analysis at three different temperatures (288, 298, 303 K). The results indicated selectivity for over that other evaluated metal. optimum range was found be 1–40 μM, with limits quantification 2.5 8.3 respectively. Using models, static dominates collisional quenching, possibly complexation between nanocomposite's carboxylate groups Hg2+. Additionally, modified model, which accounts fractional accessibility fluorophores quenchers, suggests some parts are inaccessible quencher.

Язык: Английский

Процитировано

0