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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Wang, Jianlong Wan, Zhong |
| Description | Country affiliation: China Author Affiliation: Wan Z ( Laboratory of Environmental Technology, INET, Tsinghua University, Beijing, 100084, China.); Wang J ( Collaborative Innovation Center for Advanced Nuclear Energy Technology, INET, Tsinghua University, Beijing, 100084, China.) |
| Abstract | A heterogeneous Fenton catalyst $Ce^{0}–Fe^{0}-reduced$ graphene oxide (Ce–Fe–RGO) was synthesized with chemical reduction methods and used for degradation of sulfamethazine. The introduction of Ce and graphene increased the dispersibility of iron particles which was confirmed by SEM and TEM. The results of VSM analysis showed good magnetism of Ce–Fe–RGO. The catalyst performance was compared with other kinds of catalysts $(Fe^{0}$ and $Ce^{0}–Fe^{0})$ for degradation of sulfamethazine. The results showed that $Ce^{0}–Fe–RGO$ had good catalytic performance and adsorption. X-ray diffraction showed the change of iron oxide on catalyst surface after use. The total sulfur (TS), total nitrogen (TN), total organic carbon (TOC), and intermediates, such as small organic molecular and anion ions, were analyzed by IC under different pH conditions. Finally, the possible catalytic mechanism was tentatively proposed based on inhibitor experimental results and XPS characterization. The main active species was hydroxyl radical on catalyst surface and the transition between $Ce^{3+}$ and $Ce^{4+}$ which enhanced the reduction from $Fe^{3+}$ to $Fe^{2+}$ and formation of ·OH and $·O_{2}^{−}.$ |
| ISSN | 09441344 |
| Issue Number | 18 |
| Journal | Environmental Science and Pollution Research |
| Volume Number | 23 |
| e-ISSN | 16147499 |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2016-09-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Medicine |
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