期刊
NANOMATERIALS
卷 8, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/nano8110937
关键词
Red cabbage pigment; anthocyanin; TiO2 aerogel; photocatalytic activity
类别
资金
- National Natural Science Foundation of China [21573193, 21603188, 21464016]
- Program for Innovation Team of Yunnan Province
- Key Laboratory of Advanced Materials for Wastewater Treatment of Kunming
- Scientific Research Fund of Yunnan Educational Committee [2016CYH04, 2017ZZX223]
- Key Projects for Research and Development of Yunnan [2018BA065]
- Yunnan Applied Basic Research Projects [2016FA002, 2016FD009]
- Science and Technology Project for Yunnan Water Conservancy [2016530101000395]
- Science and Technology Project of Yunnan Provincial Transportation Department [2017-438]
- Key Research and Development Plan (Industry) of Yunnan Province [2018BA065]
- Fund of central government guided developing of local science and technology
In sharp contrast to conventional photosensitization methods in which the organic pigments were often adsorbed, herein we present a study on natural vegetable pigment inserted TiO2 aerogel nanocomposites and we directly use red cabbage anthocyanin (RCP) as a structure-directing agent. It was found that pure TiO2 aerogel nanocomposite did not exhibit any meaningful activity for photocatalytic reduction of Cr(VI). However, the photocatalytic reduction activity was greatly improved by the RCP inserted TiO2 aerogel nanocomposites under visible-light irradiation, which was approximately 2- and 12.3-fold higher than that of TiO2 aerogel conventionally photosensitized by RCP and pure TiO2 aerogel nanocomposites, respectively. It also exhibited good stability and could be reused at least three times without losing a significant amount of its activity.
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