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...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-10-01
|
| Series: | Atmosphere |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4433/15/11/1301 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | 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. |
|---|---|
| ISSN: | 2073-4433 |