期刊
MICROPOROUS AND MESOPOROUS MATERIALS
卷 226, 期 -, 页码 79-87出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.micromeso.2015.12.043
关键词
Carbon dot; TiO2; Mesoporous silica; Photocatalytic degradation; Organic pollutant
类别
资金
- National Natural Science Foundation of China [U1407102, 21407049]
- Science and Technology Commission of Shanghai Municipality [14ZR1410700, 14230710500]
- Fundamental Research Funds for the Central Universities [222201314045]
- China Postdoctoral Science Foundation [2015T80409]
- Shanghai Pujiang Program [14PJ1402100]
Carbon dots (CD) and Ti species were assembled in the mesoporous silica matrix by a one-pot co-condensation strategy. The CD and Ti in the silica matrix were demonstrated to interact in two ways: on the one hand, part of the carbon in CD was doped into the Ti species; on the other hand, CD worked as photosensitizers for Ti species. The synergy effect between CD and Ti in the silica matrix along with the unique physical properties of the composite including ordered pore channels, large surface area and wide-range light absorption from UV to near IR made this composite be an excellent photocatalyst, as demonstrated by the photocatalytic degradation of azo dye acid orange 7. In addition to the degradation of organic pollutant, this newly developed mesoporous composite is expected to have promising applications in various areas related to environment and energy such as photoreduction of CO2 and photocatalytic H-2 production. (C) 2016 Elsevier Inc. All rights reserved.
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