Magnetic cotton textile wastes pyrolyzed by ferric cerium oxide for degradation of p-nitrophenol by catalytic ozonation
In this paper, magnetic cotton textile wastes pyrolyzed by ferric cerium oxide (FexCey oxide/PC) were synthesized for degradation of p-nitrophenol by catalytic ozonation, and the optimal Fe-Ce ratio was 10:1. Compared to Fe10Ce1 oxide, the Fe10Ce1 oxide/PC not only greatly improved the degradation e...
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| Format: | Article |
| Language: | English |
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IWA Publishing
2021-05-01
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| Series: | Water Science and Technology |
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| Online Access: | http://wst.iwaponline.com/content/83/9/2296 |
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| author | Xiaojie Fu Yuanxing Huang Zhihao Jin Liang Li Zhiguo Zhang |
| author_facet | Xiaojie Fu Yuanxing Huang Zhihao Jin Liang Li Zhiguo Zhang |
| author_sort | Xiaojie Fu |
| collection | DOAJ |
| description | In this paper, magnetic cotton textile wastes pyrolyzed by ferric cerium oxide (FexCey oxide/PC) were synthesized for degradation of p-nitrophenol by catalytic ozonation, and the optimal Fe-Ce ratio was 10:1. Compared to Fe10Ce1 oxide, the Fe10Ce1 oxide/PC not only greatly improved the degradation efficiency of PNP, but also reduced the dosage of catalyst. Through the BET test, the Fe10Ce1 oxide/PC has a high specific surface area to absorb part of the pollutants. VSM test shows that the material is magnetic and easy to recycle. Response surface methodology (RSM) was applied to optimize the experimental condition, and the optimal removal rate was 90% when the initial pH was 9, the catalyst dosage was 0.4 g/L, and the ozone addition was 1.77 L/min (5.9 mg/L). Finally, the mechanism of PNP degradation was explored utilizing inhibitor and ESR free radical detection. The adsorption capacity of the material and electron-absorbing property of PNP jointly determined the high catalytic efficiency with Fe10Ce1 oxide/PC in catalytic ozonation. HIGHLIGHTS
The optimum proportion of cotton textile waste pyrolysis was determined by oxide screening.;
The specific surface area of the oxide pyrolysis cotton textile wastes is larger than that of the oxide itself and it is magnetic to recycle.;
Inhibitors and free radical detection proved that catalytic ozonation follows hydroxyl radical mechanism.;
The response surface method was used to explore the optimal process parameters.; |
| first_indexed | 2024-12-20T17:29:27Z |
| format | Article |
| id | doaj.art-230dbeddeede444b8204b2b6a18b856f |
| institution | Directory Open Access Journal |
| issn | 0273-1223 1996-9732 |
| language | English |
| last_indexed | 2024-12-20T17:29:27Z |
| publishDate | 2021-05-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Science and Technology |
| spelling | doaj.art-230dbeddeede444b8204b2b6a18b856f2022-12-21T19:31:26ZengIWA PublishingWater Science and Technology0273-12231996-97322021-05-018392296230810.2166/wst.2021.131131Magnetic cotton textile wastes pyrolyzed by ferric cerium oxide for degradation of p-nitrophenol by catalytic ozonationXiaojie Fu0Yuanxing Huang1Zhihao Jin2Liang Li3Zhiguo Zhang4 School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China In this paper, magnetic cotton textile wastes pyrolyzed by ferric cerium oxide (FexCey oxide/PC) were synthesized for degradation of p-nitrophenol by catalytic ozonation, and the optimal Fe-Ce ratio was 10:1. Compared to Fe10Ce1 oxide, the Fe10Ce1 oxide/PC not only greatly improved the degradation efficiency of PNP, but also reduced the dosage of catalyst. Through the BET test, the Fe10Ce1 oxide/PC has a high specific surface area to absorb part of the pollutants. VSM test shows that the material is magnetic and easy to recycle. Response surface methodology (RSM) was applied to optimize the experimental condition, and the optimal removal rate was 90% when the initial pH was 9, the catalyst dosage was 0.4 g/L, and the ozone addition was 1.77 L/min (5.9 mg/L). Finally, the mechanism of PNP degradation was explored utilizing inhibitor and ESR free radical detection. The adsorption capacity of the material and electron-absorbing property of PNP jointly determined the high catalytic efficiency with Fe10Ce1 oxide/PC in catalytic ozonation. HIGHLIGHTS The optimum proportion of cotton textile waste pyrolysis was determined by oxide screening.; The specific surface area of the oxide pyrolysis cotton textile wastes is larger than that of the oxide itself and it is magnetic to recycle.; Inhibitors and free radical detection proved that catalytic ozonation follows hydroxyl radical mechanism.; The response surface method was used to explore the optimal process parameters.;http://wst.iwaponline.com/content/83/9/2296catalytic ozonationcotton textile wastesp-nitrophenolrsm |
| spellingShingle | Xiaojie Fu Yuanxing Huang Zhihao Jin Liang Li Zhiguo Zhang Magnetic cotton textile wastes pyrolyzed by ferric cerium oxide for degradation of p-nitrophenol by catalytic ozonation Water Science and Technology catalytic ozonation cotton textile wastes p-nitrophenol rsm |
| title | Magnetic cotton textile wastes pyrolyzed by ferric cerium oxide for degradation of p-nitrophenol by catalytic ozonation |
| title_full | Magnetic cotton textile wastes pyrolyzed by ferric cerium oxide for degradation of p-nitrophenol by catalytic ozonation |
| title_fullStr | Magnetic cotton textile wastes pyrolyzed by ferric cerium oxide for degradation of p-nitrophenol by catalytic ozonation |
| title_full_unstemmed | Magnetic cotton textile wastes pyrolyzed by ferric cerium oxide for degradation of p-nitrophenol by catalytic ozonation |
| title_short | Magnetic cotton textile wastes pyrolyzed by ferric cerium oxide for degradation of p-nitrophenol by catalytic ozonation |
| title_sort | magnetic cotton textile wastes pyrolyzed by ferric cerium oxide for degradation of p nitrophenol by catalytic ozonation |
| topic | catalytic ozonation cotton textile wastes p-nitrophenol rsm |
| url | http://wst.iwaponline.com/content/83/9/2296 |
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