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231225s2021 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2021.296
|2 doi
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|a pubmed24n1102.xml
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|a (DE-627)NLM33076070X
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|a (NLM)34534108
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Yao, Z Y
|e verfasserin
|4 aut
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|a Synergistically homogeneous-heterogeneous Fenton catalysis of trace copper ion and g-C3N4 for degradation of organic pollutants
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 21.09.2021
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|a Date Revised 21.09.2021
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|a published: Print
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|a Citation Status MEDLINE
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|a Using the bulk g-C3N4 as a precursor, four g-C3N4 nanosheets were further prepared by ultrasonic, thermal, acid, and alkali exfoliation. The structures of these materials were characterized by various techniques such as X-ray powder diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy. The synergistical Fenton catalysis of these materials with Cu2+ was evaluated by using rhodamine B as a simulated organic pollutant. The results showed that there existed a significant synergistical Fenton catalysis between Cu2+ and g-C3N4. This synergistic effect can be observed even when the concentration of Cu2+ was as low as 0.064 mg L-1. The properties of g-C3N4 strongly influenced the catalytic activity of the Cu2+/g-C3N4 system. The coexistent of Cu2+ and the alkali exfoliated g-C3N4 showed the best catalytic activity. Hydroxyl radicals as oxidizing species were confirmed in the Cu2+/g-C3N4 system by electron paramagnetic resonance spectra. The synergistic catalysis may be attributed to the easier reduction of Cu2+ adsorbed on the g-C3N4. This study provided an excellent Fenton catalytic system, and partly solved the rapid deactivation of heterogeneous Fenton catalysts caused by the leaching of metal ions
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|a Journal Article
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|a Environmental Pollutants
|2 NLM
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|a Ions
|2 NLM
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|a Copper
|2 NLM
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|a 789U1901C5
|2 NLM
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|a Zhu, G X
|e verfasserin
|4 aut
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|a Lu, T L
|e verfasserin
|4 aut
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|a Zhan, Y Z
|e verfasserin
|4 aut
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 84(2021), 5 vom: 17. Sept., Seite 1090-1102
|w (DE-627)NLM098149431
|x 0273-1223
|7 nnns
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| 773 |
1 |
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|g volume:84
|g year:2021
|g number:5
|g day:17
|g month:09
|g pages:1090-1102
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|u http://dx.doi.org/10.2166/wst.2021.296
|3 Volltext
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