期刊
ADVANCED FUNCTIONAL MATERIALS
卷 26, 期 45, 页码 8211-8219出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201603803
关键词
-
类别
资金
- NRF - Ministry of Science, ICT, and Future Planning [NRF-2014R1A2A1A11051877, 2008-0061891]
- Human Resources Development program of KETEP - Korean government Ministry of Trade, Industry, and Energy [20154030200680]
- National Research Foundation of Korea [22A20130012456, 2014R1A2A1A11051877] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Precise control over doping of photocatalysts is required to modulate their photocatalytic activity in visible light-driven reactions. Here, a single precursor-employing bottom-up approach is developed to produce different heteroatom-doped graphene quantum dots (GQDs) with unique photocatalytic activities. The solvothermal reaction of a norepinephrine precursor with redox active and condensable moieties effectively produces both nitrogen/sulfur codoped GQDs (NS-GQDs) and nitrogen-doped GQDs (N-GQDs) by simply varying solvents (from dimethyl sulfoxide to water) under microwave irradiation. As-prepared NS-GQDs and N-GQDs show similar lateral sizes (3-4 nm) and heights (1-2 nm), but they include different dopant types and doping constitution and content, which lead to changes in photocatalytic activity in aerobic oxidative coupling reactions of various amines. NS-GQDs exhibit much higher photocatalytic activity in reactions under visible light than N-GQDs and oxygen-doped GQDs (O-GQDs). The mechanism responsible for the outstanding photocatalytic activity of NS-GQDs in visible lightdriven oxidative coupling reactions of amines is also fully investigated.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据