期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 3, 期 5, 页码 2258-2264出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ta05941g
关键词
-
资金
- Flemish Industrial Research Fund (IOF)
- FWO-Vlaanderen [12M1415N]
- Flemish Government for long-term structural funding (Methusalem)
Geosmin is an unpleasant tasting germacranoid sesquiterpene to which human taste buds are sensitive even at the parts per trillion (ppt) level. The elimination of this molecule from water is a great scientific challenge due to the extremely low concentration needing to be removed. In this paper, we report simple fabrication of stable titania (TiO2) and Y zeolite composite coatings via a layer-by-layer dip-coating approach for efficient adsorptive and photocatalytic elimination of geosmin up to 99% from 100 ppt geosmin aqueous solution within 120 minutes at 35 degrees C under UV light. Zeolite coatings are also found to be highly efficient for adsorptive elimination of geosmin at a minute concentration of 4 ppt, the typical concentration level found in aquaculture water. Geosmin concentrations in the ppt range were determined by the headspace solid phase microextraction (HS-SPME) technique in combination with gas chromatography-mass spectrometry (GC-MS). This study demonstrates the potential of a composite coating comprising zeolite Y for concentrating, and TiO2 photocatalyst for eliminating geosmin in drinking water production and aquaculture water purification.
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