|
|
|
|
| LEADER |
01000naa a22002652 4500 |
| 001 |
NLM269698396 |
| 003 |
DE-627 |
| 005 |
20231224225048.0 |
| 007 |
cr uuu---uuuuu |
| 008 |
231224s2018 xx |||||o 00| ||eng c |
| 024 |
7 |
|
|a 10.1080/09593330.2017.1293164
|2 doi
|
| 028 |
5 |
2 |
|a pubmed24n0899.xml
|
| 035 |
|
|
|a (DE-627)NLM269698396
|
| 035 |
|
|
|a (NLM)28278773
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Feng, Yong
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Cu2O-promoted degradation of sulfamethoxazole by α-Fe2O3-catalyzed peroxymonosulfate under circumneutral conditions
|b synergistic effect, Cu/Fe ratios, and mechanisms
|
| 264 |
|
1 |
|c 2018
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ƒaComputermedien
|b c
|2 rdamedia
|
| 338 |
|
|
|a ƒa Online-Ressource
|b cr
|2 rdacarrier
|
| 500 |
|
|
|a Date Completed 08.03.2018
|
| 500 |
|
|
|a Date Revised 08.03.2018
|
| 500 |
|
|
|a published: Print-Electronic
|
| 500 |
|
|
|a Citation Status MEDLINE
|
| 520 |
|
|
|a To promote the application of iron oxides in sulfate radical-based advanced oxidation processes, a convenient approach using Cu2O as a catalyst additive was proposed. Composite catalysts based on α-Fe2O3 (CTX%Cu2O, X = 1, 2.5, 5, and 10) were prepared for peroxymonosulfate (PMS) activation, and sulfamethoxazole was used as a model pollutant to probe the catalytic reactivity. The results show that a synergistic catalytic effect exists between Cu2O and α-Fe2O3, which was explained by the promoted reduction of Fe(III) by Cu(I). Iron K-edge X-ray absorption spectroscopy investigations indicated that the promoted reduction probably occurred with PMS acting as a ligand that bridges the redox centers of Cu(I) and Fe(III). The weight ratio between Cu2O and α-Fe2O3 influenced the degradation of sulfamethoxazole, and the optimal ratio depended on the dosage of PMS and catalysts. With 40 mg L-1 PMS and 0.6 g L-1 catalyst, a pseudo-first-order constant of ∼0.019 min-1 was achieved for CT2.5%Cu2O, whereas only 0.004 min-1 was realized for α-Fe2O3. Nearly complete degradation of the sulfamethoxazole was achieved within 180 min under the conditions of 40 mg L-1 PMS, 0.4 g L-1 CT2.5%Cu2O, and pH 6.8. In contrast, less than 20% degradation was realized with α-Fe2O3 under similar conditions. The CT2.5%Cu2O catalyst had the best stoichiometric efficiency of PMS (0.317), which was 4.5 and 5.8 times higher than those of Cu2O (0.070) and α-Fe2O3 (0.054), respectively. On the basis of the products identified, the cleavage of the S-N bond was proposed as a major pathway for the degradation of sulfamethoxazole
|
| 650 |
|
4 |
|a Journal Article
|
| 650 |
|
4 |
|a Cu2O
|
| 650 |
|
4 |
|a Peroxymonosulfate
|
| 650 |
|
4 |
|a sulfamethoxazole
|
| 650 |
|
4 |
|a synergistic effect
|
| 650 |
|
4 |
|a α-Fe2O3
|
| 650 |
|
7 |
|a Ferric Compounds
|2 NLM
|
| 650 |
|
7 |
|a Peroxides
|2 NLM
|
| 650 |
|
7 |
|a Water Pollutants, Chemical
|2 NLM
|
| 650 |
|
7 |
|a ferric oxide
|2 NLM
|
| 650 |
|
7 |
|a 1K09F3G675
|2 NLM
|
| 650 |
|
7 |
|a peroxymonosulfate
|2 NLM
|
| 650 |
|
7 |
|a 22047-43-4
|2 NLM
|
| 650 |
|
7 |
|a Copper
|2 NLM
|
| 650 |
|
7 |
|a 789U1901C5
|2 NLM
|
| 650 |
|
7 |
|a Iron
|2 NLM
|
| 650 |
|
7 |
|a E1UOL152H7
|2 NLM
|
| 650 |
|
7 |
|a Sulfamethoxazole
|2 NLM
|
| 650 |
|
7 |
|a JE42381TNV
|2 NLM
|
| 700 |
1 |
|
|a Liao, Changzhong
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Li, Hangkong
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Liu, Chengshuai
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Shih, Kaimin
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Environmental technology
|d 1993
|g 39(2018), 1 vom: 28. Jan., Seite 1-11
|w (DE-627)NLM098202545
|x 1479-487X
|7 nnns
|
| 773 |
1 |
8 |
|g volume:39
|g year:2018
|g number:1
|g day:28
|g month:01
|g pages:1-11
|
| 856 |
4 |
0 |
|u http://dx.doi.org/10.1080/09593330.2017.1293164
|3 Volltext
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_350
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 39
|j 2018
|e 1
|b 28
|c 01
|h 1-11
|