期刊
CARBOHYDRATE POLYMERS
卷 235, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2020.115958
关键词
ZnO; Cellulose; Photocatalyst; Template; Carbon coating
资金
- National Key Research and Development Program of China [2017YFD601005]
- Natural Science Foundation of China [31700519, 21774021]
- Natural Science Foundation of Fujian [2018J01591]
- Science Fund of Fujian Provincial University [JK2017013]
- Distinguished Young Talents of Fujian Agriculture and Forestry University [XJQ201806]
- Award Program for Minjiang Scholar Professorship
- Key Laboratory of State Forestry and Grassland Ministry [2019KFJJ16]
Ultrafine C-doped ZnO/carbon nanocomposites with different photocatalytic activities have been prepared using TEMPO-oxidized cellulose as a template but also as the source of carbon. The result is an enhancement of the photocatalytic activity ascribed to different phenomena: a high mesoporosity beneficial to mass transport, a thin carbon layer onto ZnO increasing the charge transfer and hydrophobicity of ZnO, a narrowing of ZnO band gap and an increase of the zinc (V-Zn) and oxygen (V-o) vacancies effectively suppressing of the charge recombination. These are evidenced by photocatalytic test of photodegradation of methyl orange (MO) achieved to assess and compared the different photocatalysts. The highest rate constant value of photodegradation of MO is 0.0254 min(-1), three times higher than that of ZnO prepared without templates (0.0087 min(-1)). The present results introduce a new vision of the use of template with multiple roles in the preparation of inorganic materials and specially photocatalysts.
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