期刊
APPLIED SURFACE SCIENCE
卷 329, 期 -, 页码 256-261出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2014.12.158
关键词
Amylose; Halloysite; TiO2; Photodegradation
类别
资金
- Science and Technology Project of Jiangxi Provincial Office of Education [KJLD12082]
- Science and Technology Project of Jiangxi Provincial Office of Education (Innovation Platform project 311)
- Nature Science Foundation of Jiangxi Province [20132BAB 206006]
- National Nature Science Foundation of China [51162011, 51462009]
A supramolecular structure was initially formed between amylose and halloysite (HNT) simply by using a mechanical force. Subsequently, amylose acted as a template for the growth of TiO2 nanoparticles. The thus-prepared amylose-HNT-TiO2 composite was characterized using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analyses, and transmission electron microscopy (TEM). In comparison to its counterpart HNT-TiO2 composite, the amylose-HNT-TiO2 composite exhibited better dispersion, a larger specific surface area, and photocatalytic activity that was more effective for the photodegradation/removal of methylene blue (MB) and the persistent organic pollutant 4-nitrophenol (4-NP) under UV irradiation. After four successive UV irradiation treatments, amylose-HNT-TiO2 removed about 90% of 4-NP or MB. (C) 2014 Elsevier B.V. All rights reserved.
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