Laser-driven direct synthesis of carbon nanodots and application as sensitizers for visible-light photocatalysis

被引：29

作者：

Mas, Nuria ^{[1
,2
,3
]}

Hueso, Jose L. ^{[1
,2
,3
,4
]}

Martinez, Gema ^{[1
,2
,3
,4
]}

Madrid, Ainhoa ^{[1
,2
,3
,4
]}

Mallada, Reyes ^{[1
,2
,3
,4
]}

Carmen Ortega-Liebana, M. ^{[1
,2
,3
]}

Bueno-Alejo, Carlos ^{[1
,2
,3
]}

Santamaria, Jesus ^{[1
,2
,3
,4
]}

机构：

[1] INA, Campus Rio Ebro, Zaragoza 50018, Spain

[2] Dept Chem & Environm Engn, Campus Rio Ebro, Zaragoza 50018, Spain

[3] Networking Res Ctr Bioengn Biomat & Nanomed CIBER, Madrid 28029, Spain

[4] Univ Zaragoza, CSIC, ICMA, Zaragoza, Spain

来源：

CARBON | 2020年 / 156卷

基金：

欧洲研究理事会;

关键词：

GRAPHENE QUANTUM DOTS; HYDROGEN-PRODUCTION; CRYSTAL VIOLET; HYDROTHERMAL SYNTHESIS; NITROGEN; TIO2; OXYGEN; TEMPERATURE; NANOPARTICLES; NANOMATERIALS;

D O I：

10.1016/j.carbon.2019.09.073

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We present the first successful synthesis of monodisperse carbon nanodots (CNDs) with tunable photoluminescence (PL) carried out by laser pyrolysis of two common volatile organic precursors such as toluene and pyridine. Remarkably, the initial chemical composition of the precursor determines the formation of undoped or N-doped CNDs and their corresponding absorption response in the visible range (expanded for the latter). We demonstrate the control and versatility of this synthesis method to tune the final outcome and its potential to explore a great number of potential solvent candidates. Furthermore, we have successfully exploited these CNDs (both undoped and N-doped) as effective sensitizers of TiO2 nanoparticles in the visible-light driven photo-degradation of a cationic dye selected as model organic pollutant. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：453 / 462

页数：10

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