Activated electric arc furnace slag as an efficient and reusable heterogeneous Fenton-like catalyst for the degradation of Reactive Black 5
This study aims to explore the feasibility of using iron slag derived from an electric arc furnace (EAFS) as a catalyst to degrade Reactive Black 5 (RB5). Raw EAFS (R-EAFS) subjected to 0.1 M NaOH solution treatment and thermal treatment was denoted as activated EAFS (A-EAFS). A-EAFS was characteriz...
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Nasuha N.; Ismail S.; Hameed B.H. |
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Nasuha N.; Ismail S.; Hameed B.H. 2-s2.0-84994513762 Activated electric arc furnace slag as an efficient and reusable heterogeneous Fenton-like catalyst for the degradation of Reactive Black 5 2016 Journal of the Taiwan Institute of Chemical Engineers 67 10.1016/j.jtice.2016.07.023 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84994513762&doi=10.1016%2fj.jtice.2016.07.023&partnerID=40&md5=bd2acfc0004d703df6e3f4bd357b2d32 This study aims to explore the feasibility of using iron slag derived from an electric arc furnace (EAFS) as a catalyst to degrade Reactive Black 5 (RB5). Raw EAFS (R-EAFS) subjected to 0.1 M NaOH solution treatment and thermal treatment was denoted as activated EAFS (A-EAFS). A-EAFS was characterized and examined for its capability to degrade RB5 in a dark-batch reaction under different catalyst dosages (0.01–0.06 g), H2O2 dosages (2–12 mM), initial pH values (2–7), initial concentrations (25–150 ppm), and reaction temperatures (303–323 K). The optimal conditions (94% within 60 min) for RB5 degradation were 0.2 g L−1, 8 mM H2O2, and pH 3. The degradation rate of A-EAFS for RB5 exceeded 94%, which was higher than that of R-EAFS. Recycling of A-EAFS after 10 reuses suggested that this stability is ascribed to the regeneration of the major constituent's ferrous ion magnetite and maghemite to decompose H2O2 into hydroxyl radical catalytically. Therefore, A-EAFS is an alternative heterogeneous catalyst in the abatement of organic dyes from polluted water through a heterogeneous Fenton-like reaction. © 2016 Taiwan Institute of Chemical Engineers Taiwan Institute of Chemical Engineers 18761070 English Article |
| author |
2-s2.0-84994513762 |
| spellingShingle |
2-s2.0-84994513762 Activated electric arc furnace slag as an efficient and reusable heterogeneous Fenton-like catalyst for the degradation of Reactive Black 5 |
| author_facet |
2-s2.0-84994513762 |
| author_sort |
2-s2.0-84994513762 |
| title |
Activated electric arc furnace slag as an efficient and reusable heterogeneous Fenton-like catalyst for the degradation of Reactive Black 5 |
| title_short |
Activated electric arc furnace slag as an efficient and reusable heterogeneous Fenton-like catalyst for the degradation of Reactive Black 5 |
| title_full |
Activated electric arc furnace slag as an efficient and reusable heterogeneous Fenton-like catalyst for the degradation of Reactive Black 5 |
| title_fullStr |
Activated electric arc furnace slag as an efficient and reusable heterogeneous Fenton-like catalyst for the degradation of Reactive Black 5 |
| title_full_unstemmed |
Activated electric arc furnace slag as an efficient and reusable heterogeneous Fenton-like catalyst for the degradation of Reactive Black 5 |
| title_sort |
Activated electric arc furnace slag as an efficient and reusable heterogeneous Fenton-like catalyst for the degradation of Reactive Black 5 |
| publishDate |
2016 |
| container_title |
Journal of the Taiwan Institute of Chemical Engineers |
| container_volume |
67 |
| container_issue |
|
| doi_str_mv |
10.1016/j.jtice.2016.07.023 |
| url |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84994513762&doi=10.1016%2fj.jtice.2016.07.023&partnerID=40&md5=bd2acfc0004d703df6e3f4bd357b2d32 |
| description |
This study aims to explore the feasibility of using iron slag derived from an electric arc furnace (EAFS) as a catalyst to degrade Reactive Black 5 (RB5). Raw EAFS (R-EAFS) subjected to 0.1 M NaOH solution treatment and thermal treatment was denoted as activated EAFS (A-EAFS). A-EAFS was characterized and examined for its capability to degrade RB5 in a dark-batch reaction under different catalyst dosages (0.01–0.06 g), H2O2 dosages (2–12 mM), initial pH values (2–7), initial concentrations (25–150 ppm), and reaction temperatures (303–323 K). The optimal conditions (94% within 60 min) for RB5 degradation were 0.2 g L−1, 8 mM H2O2, and pH 3. The degradation rate of A-EAFS for RB5 exceeded 94%, which was higher than that of R-EAFS. Recycling of A-EAFS after 10 reuses suggested that this stability is ascribed to the regeneration of the major constituent's ferrous ion magnetite and maghemite to decompose H2O2 into hydroxyl radical catalytically. Therefore, A-EAFS is an alternative heterogeneous catalyst in the abatement of organic dyes from polluted water through a heterogeneous Fenton-like reaction. © 2016 Taiwan Institute of Chemical Engineers |
| publisher |
Taiwan Institute of Chemical Engineers |
| issn |
18761070 |
| language |
English |
| format |
Article |
| accesstype |
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| record_format |
scopus |
| collection |
Scopus |
| _version_ |
1828987879840284672 |