A study on the high efficiency reduction of p-nitrophenol (4-NP) by a Fe(OH)3/Fe2O3@Au composite catalyst |
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| Authors: | Meirong Fu Mingqiang Li Yingying Zhao Yunxiang Bai Xingzhong Fang Xiaolong Kang Min Yang Yanping Wei Xia Xu |
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| Affiliation: | College of Science, Gansu Agricultural University, No. 1 Yingmen Village, Lanzhou 730070 P. R. China, |
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| Abstract: | Precious metal nanometric catalysts are widely used in the removal of harmful substances. In the process of synthesis and catalytic reaction, it is particularly important to study green and simple synthesis methods and high catalytic efficiency. In this paper, a green one-step method was used to synthesize the Fe(OH)3/Fe2O3@Au composite catalyst, in which Au was single atom-dispersed. The removal of 4-nitrophenol (4-NP), a typical dangerous chemical widely existing in factory waste gas, waste water and automobile exhaust gas, was catalysed by Fe(OH)3/Fe2O3@Au. The catalytic performance of Fe(OH)3/Fe2O3@Au with different synthesis conditions (different amounts of MES, NaBH4, FeSO4, Au and Pt) on the 4-NP reduction reaction were systematically studied. Finally, the stability and recyclability of Fe(OH)3/Fe2O3@Au composite nanocatalyst were investigated thoroughly.The process of the catalytic reduction of 4-nitrophenol based on single atom-dispersed Au loaded with ultrathin Fe(OH)3/Fe2O3 nanosheets. |
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