Solid phase synthesis of nitrogen and phosphor co-doped carbon quantum dots for sensing Fe3+ and the enhanced photocatalytic degradation of dyes

被引：106

作者：

Guo, Yongming ^{[1
]}

Cao, Fengpu ^{[1
]}

Li, Yabo ^{[1
]}

机构：

[1] Nanyang Normal Univ, Coll Chem & Pharmaceut Engn, Nanyang 473061, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2018年 / 255卷

基金：

中国国家自然科学基金;

关键词：

Solid phase synthesis; Carbon quantum dots; Fe3+; Photocatalytic degradation; Detection; HIGHLY SENSITIVE DETECTION; FLUORESCENT NANOMATERIALS; SELECTIVE DETECTION; OPTICAL-PROPERTIES; FACILE SYNTHESIS; METAL-IONS; ONE-POT; PROBE; NANOPARTICLES; GREEN;

D O I：

10.1016/j.snb.2017.08.104

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A facile and one-step strategy has been developed for the preparation of highly fluorescent nitrogen and phosphor co-doped carbon quantum dots (NP-CQDs) through the thermal treatment of the mixture of citric acid and O-phosphorylethanolamine. The as-prepared NP-CQDs emit strong blue-green light under irradiation of 365 nm light and show emission maxima at 475 nm in aqueous solution. And these NP-CQDs exhibit great stability in high-salt conditions, excellent photostability and a high quantum yield of about 8.45%. Interestingly, the NP-CQDs have been successfully utilized for the sensitive and selective fluorometric detection of Fe3+ without interference from other ions in aqueous solution. Moreover, we have found that the NP-CQDs can enhance the photocatalytic activity of TiO2 for the degradation of dyes under simulated sunlight irradiation. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：1105 / 1111

页数：7

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