Synthesis of Ag/BiOBr/CeO 2 composites with enhanced photocatalytic degradation for sulfisoxazole
A novel Ag/BiOBr/CeO composite was successfully prepared for the first time, which had excellent performance in degrading sulfisoxazole (SSX) under visible light irradiation. The as-prepared samples were characterized by SEM, XRD, UV-vis DRS and BET et al. The composite of 10% Ag/BiOBr/CeO showed th...
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| Published in | Environmental science and pollution research international |
|---|---|
| Main Authors | , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
Germany
15.02.2022
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| Subjects | |
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| Abstract | A novel Ag/BiOBr/CeO
composite was successfully prepared for the first time, which had excellent performance in degrading sulfisoxazole (SSX) under visible light irradiation. The as-prepared samples were characterized by SEM, XRD, UV-vis DRS and BET et al. The composite of 10% Ag/BiOBr/CeO
showed the best photocatalytic activity and more than 99.5% SSX can be removed within 20 min. It exhibited the highest k value of 0.2428 min
, which was about 39.7 times higher than pure BiOBr (6.11 × 10
min
) and 22.1 times higher than BiOBr/CeO
(1.09 × 10
min
), respectively. The addition of Ag significantly improved the absorption rate of visible light and the separation rate of photogenerated electron-hole pairs. The initial pH and dosage of samples could have an influence on the photocatalytic activity. The radical trapping experiments proved that ·O
and h
were the main active species involved in photocatalytic degradation. Finally, the synthesized catalyst maintained excellent photocatalytic activity after 5 repeated cycles, which indicated the extraordinary stability and recyclability of Ag/BiOBr/CeO
. |
|---|---|
| AbstractList | A novel Ag/BiOBr/CeO
composite was successfully prepared for the first time, which had excellent performance in degrading sulfisoxazole (SSX) under visible light irradiation. The as-prepared samples were characterized by SEM, XRD, UV-vis DRS and BET et al. The composite of 10% Ag/BiOBr/CeO
showed the best photocatalytic activity and more than 99.5% SSX can be removed within 20 min. It exhibited the highest k value of 0.2428 min
, which was about 39.7 times higher than pure BiOBr (6.11 × 10
min
) and 22.1 times higher than BiOBr/CeO
(1.09 × 10
min
), respectively. The addition of Ag significantly improved the absorption rate of visible light and the separation rate of photogenerated electron-hole pairs. The initial pH and dosage of samples could have an influence on the photocatalytic activity. The radical trapping experiments proved that ·O
and h
were the main active species involved in photocatalytic degradation. Finally, the synthesized catalyst maintained excellent photocatalytic activity after 5 repeated cycles, which indicated the extraordinary stability and recyclability of Ag/BiOBr/CeO
. |
| Author | Gao, Shengwang Wang, Yaqiao Xia, Xunfeng Wang, Guoying Zhao, Xingpeng Han, Xue |
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| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/35167019$$D View this record in MEDLINE/PubMed |
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| Keywords | Influence factors Photocatalysis Ag/BiOBr/CeO2 Degradation mechanism Sulfisoxazole |
| Language | English |
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| Snippet | A novel Ag/BiOBr/CeO
composite was successfully prepared for the first time, which had excellent performance in degrading sulfisoxazole (SSX) under visible... |
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| Title | Synthesis of Ag/BiOBr/CeO 2 composites with enhanced photocatalytic degradation for sulfisoxazole |
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