| Autor: |
Danlei WU, Denggao JI, Jingmao GUO, Shoufa CAO, Xin WANG, Jianchao MA |
| Jazyk: |
English<br />Chinese |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Taiyuan Ligong Daxue xuebao, Vol 54, Iss 1, Pp 81-90 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1007-9432 |
| DOI: |
10.16355/j.cnki.issn1007-9432tyut.2023.01.010 |
| Popis: |
Magnetic geopolymer (Fe3O4-CGGP) was prepared from coal gangue, and evaluated by Fenton-like degradation of phenol. It was found that Fe3O4 with a particle size of 10-20 nm was uniformly dispersed on the surface of coal gangue geopolymer (CGGP). The saturation magnetization of Fe3O4-CGGP reached 35.68 emu/g. These indicated that Fe3O4-CGGP had a good catalytic activity and magnetic responsiveness. The effects of pH value, catalyst dosage, H2O2 dosage, and initial phenol concentration were investigated on Fenton-like degradation of phenol. The optimum conditions were as follows: pH is 3.5, catalyst dosage 0.5 g/L, and H2O210 mmol/L. Under the parameters, phenol can be completely degraded in 60 min. The free radical quenching experiment revealed that ·OH dominates the catalytic process in the Fe3O4-CGGP/H2O2 system. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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