Simultaneous Catalytic Oxidation of Benzene and Toluene over Pd-CeZrO<i><sub>x</sub></i> Catalysts
Since actual industrial emissions contain a wide range of volatile organic compounds, studies into the simultaneous catalytic degradation of multi-component VOCs are essential. This work developed Pd-CeZrO<i><sub>x</sub></i> samples for the simultaneous elimination of benzene...
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MDPI AG
2024-10-01
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| Series: | Atmosphere |
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| author | Xin Xing Yixin Wang Meiping Hao Zhe Li Dandan Liu Kezhou Yan |
| author_facet | Xin Xing Yixin Wang Meiping Hao Zhe Li Dandan Liu Kezhou Yan |
| author_sort | Xin Xing |
| collection | DOAJ |
| description | Since actual industrial emissions contain a wide range of volatile organic compounds, studies into the simultaneous catalytic degradation of multi-component VOCs are essential. This work developed Pd-CeZrO<i><sub>x</sub></i> samples for the simultaneous elimination of benzene and toluene. Firstly, CeZrO<i><sub>x</sub></i> supports were synthesized using several methods (co-precipitation, CTAB template co-precipitation, and sol–gel method). Pd active species were then added into the 1.0Pd-CeZrO<i><sub>x</sub></i> samples using the impregnation procedure. XRD, BET, NH<sub>3</sub>-TPD, Raman, EPR, XPS, and H<sub>2</sub>-TPR were utilized to analyze the as-prepared Pd-CeZrO<i><sub>x</sub></i> samples. The catalytic performance tests reveal that the performance of 1.0Pd-CeZrO<i><sub>x</sub></i>-CTAB outperforms that of 1.0Pd-CeZrO<i><sub>x</sub></i>-PM and 1.0Pd-CeZrO<i><sub>x</sub></i>-CASG, and 1.0Pd-CeZrO<i><sub>x</sub></i>-CTAB displays superior catalytic activity for both benzene and toluene oxidation. The improved redox properties, the abundant surface oxygen vacancies, and the surface Pd<sup>2+</sup> species of the 1.0Pd-CeZrO<i><sub>x</sub></i>-CTAB sample may be responsible for the simultaneous degradation activity of benzene and toluene. |
| format | Article |
| id | doaj-art-146cc5ae3c6b43c890fd39dc5caeac21 |
| institution | OA Journals |
| issn | 2073-4433 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
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| series | Atmosphere |
| spelling | doaj-art-146cc5ae3c6b43c890fd39dc5caeac212025-08-20T02:26:54ZengMDPI AGAtmosphere2073-44332024-10-011511130110.3390/atmos15111301Simultaneous Catalytic Oxidation of Benzene and Toluene over Pd-CeZrO<i><sub>x</sub></i> CatalystsXin Xing0Yixin Wang1Meiping Hao2Zhe Li3Dandan Liu4Kezhou Yan5College of Environment and Resources, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaCollege of Environment and Resources, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaInstitute of Resources and Environmental Engineering, Shanxi University, Taiyuan 030031, ChinaCollege of Environment and Resources, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaCollege of Environment and Resources, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaInstitute of Resources and Environmental Engineering, Shanxi University, Taiyuan 030031, ChinaSince actual industrial emissions contain a wide range of volatile organic compounds, studies into the simultaneous catalytic degradation of multi-component VOCs are essential. This work developed Pd-CeZrO<i><sub>x</sub></i> samples for the simultaneous elimination of benzene and toluene. Firstly, CeZrO<i><sub>x</sub></i> supports were synthesized using several methods (co-precipitation, CTAB template co-precipitation, and sol–gel method). Pd active species were then added into the 1.0Pd-CeZrO<i><sub>x</sub></i> samples using the impregnation procedure. XRD, BET, NH<sub>3</sub>-TPD, Raman, EPR, XPS, and H<sub>2</sub>-TPR were utilized to analyze the as-prepared Pd-CeZrO<i><sub>x</sub></i> samples. The catalytic performance tests reveal that the performance of 1.0Pd-CeZrO<i><sub>x</sub></i>-CTAB outperforms that of 1.0Pd-CeZrO<i><sub>x</sub></i>-PM and 1.0Pd-CeZrO<i><sub>x</sub></i>-CASG, and 1.0Pd-CeZrO<i><sub>x</sub></i>-CTAB displays superior catalytic activity for both benzene and toluene oxidation. The improved redox properties, the abundant surface oxygen vacancies, and the surface Pd<sup>2+</sup> species of the 1.0Pd-CeZrO<i><sub>x</sub></i>-CTAB sample may be responsible for the simultaneous degradation activity of benzene and toluene.https://www.mdpi.com/2073-4433/15/11/1301VOCsbenzene and toluenesimultaneous catalytic oxidationPd-CeZrO<i><sub>x</sub></i> |
| spellingShingle | Xin Xing Yixin Wang Meiping Hao Zhe Li Dandan Liu Kezhou Yan Simultaneous Catalytic Oxidation of Benzene and Toluene over Pd-CeZrO<i><sub>x</sub></i> Catalysts Atmosphere VOCs benzene and toluene simultaneous catalytic oxidation Pd-CeZrO<i><sub>x</sub></i> |
| title | Simultaneous Catalytic Oxidation of Benzene and Toluene over Pd-CeZrO<i><sub>x</sub></i> Catalysts |
| title_full | Simultaneous Catalytic Oxidation of Benzene and Toluene over Pd-CeZrO<i><sub>x</sub></i> Catalysts |
| title_fullStr | Simultaneous Catalytic Oxidation of Benzene and Toluene over Pd-CeZrO<i><sub>x</sub></i> Catalysts |
| title_full_unstemmed | Simultaneous Catalytic Oxidation of Benzene and Toluene over Pd-CeZrO<i><sub>x</sub></i> Catalysts |
| title_short | Simultaneous Catalytic Oxidation of Benzene and Toluene over Pd-CeZrO<i><sub>x</sub></i> Catalysts |
| title_sort | simultaneous catalytic oxidation of benzene and toluene over pd cezro i sub x sub i catalysts |
| topic | VOCs benzene and toluene simultaneous catalytic oxidation Pd-CeZrO<i><sub>x</sub></i> |
| url | https://www.mdpi.com/2073-4433/15/11/1301 |
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