UiO-66-supported Fe catalyst: a vapour deposition preparation method and its superior catalytic performance for removal of organic pollutants in water
| Autor: | Chuangye Wang, Bili Chen, Cai Wenjin, Yanyan Xi, Huimin Zhuang, Tianxu Ye, Xufeng Lin |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
02 engineering and technology Vapour deposition 010402 general chemistry 01 natural sciences Catalysis Preparation method advanced oxidation lcsh:Science Pollutant Multidisciplinary Fe catalyst metal-organic framework organic pollutant in water 021001 nanoscience & nanotechnology 0104 chemical sciences Chemistry Chemical engineering Metal-organic framework lcsh:Q 0210 nano-technology catalyst preparation Research Article |
| Zdroj: | Royal Society Open Science Royal Society Open Science, Vol 6, Iss 4 (2019) |
| ISSN: | 2054-5703 |
| Popis: | A vapour deposition (VD) method was established for preparation of the UiO-66-supported Fe (Fe/UiO-66) catalyst, which provided the first case of the metal-organic framework (MOF)-supported Fe catalyst prepared by using the vapour-based method. The Fe loading was around 7.0–8.5 wt% under the present preparation conditions. The crystal structure of UiO-66 was not obviously influenced by the Fe loading, while the surface area significantly decreased, implicating most of the Fe components resided in the pores on UiO-66. The results for the methyl orange (MO) removal tests showed that MO in aqueous solution can be removed by UiO-66 by adsorption, and in contrast, it can be oxidized by H 2 O 2 with the catalysis of Fe/UiO-66. Further catalytic tests showed that Fe/UiO-66 was rather effective to catalyse the oxidation of benzene derivatives like aniline in water in terms of chemical oxygen demand (COD) removal efficiency. The catalytic test results for Fe/UiO-66 were compared to those of Fe/Al 2 O 3 with the same Fe loading and to the catalysts reported in the literature. This paper provides a general strategy for VD preparation of MOF-supported Fe catalyst on the one hand, and new catalysts for removing organic pollutants from water, on the other hand. |
| Databáze: | OpenAIRE |
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