A chemical method for identifying the photocatalytic active sites on carbon dots

被引：38

作者：

Hu, Shengliang ^{[1
]}

Zhang, Wenyu ^{[1
]}

Chang, Qing ^{[1
]}

Yang, Jinlong ^{[1
,2
]}

Lin, Kui ^{[3
]}

机构：

[1] North Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Peoples R China

[2] Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

[3] Tianjin Univ, Analyt Instrumentat Ctr, Tianjin 300072, Peoples R China

来源：

CARBON | 2016年 / 103卷

基金：

山西省青年科学基金; 中国国家自然科学基金;

关键词：

QUANTUM DOTS; QUANTIFICATION;

D O I：

10.1016/j.carbon.2016.03.004

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：

Fluorescent carbon dots (CDs) with oxygen-containing functional groups were prepared by a hydrothermal method. Three kinds of typical oxygen functional groups, i.e. hydroxyl, carbonyl, and carboxylic acid groups, were selectively deactivated to independently assess their photocatalytic activities on the surface of CDs. The presented results indicate that the carbonyl group on CDs is their photocatalytic active sites. Hereby, the high photocatalytic activities of CDs could be produced by enhancing carbonyl group concentration on their surface. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：391 / 393

页数：3

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