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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1080/09593330.2022.2058424
|2 doi
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|a pubmed25n1128.xml
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|a (DE-627)NLM338547010
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|a (NLM)35324393
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Wang, Lingsheng
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Preparation, characterization, and removal of nitrate from water using vacant polyoxometalate/TiO2 composites
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 31.08.2023
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|a Date Revised 31.08.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Due to the rapid development of industry and agriculture, nitrate pollution in groundwater has been continuously increasing. NO3-N is a chemically stable nitrogen species and is quite difficult to remove. In this study, using heteropoly silicotungstate K8[α-SiW11O39] and Cu2+ as the active components, SiW11 and Cu2+ were loaded onto TiO2 by a sol-gel method to prepare a composite photocatalyst SiW11/TiO2/Cu. The photocatalytic reduction of dissolved NO3-N was subsequently performed using SiW11/TiO2/Cu under UV irradiation, and the influence of different experimental parameters on the photocatalytic performance was investigated. The mechanism of NO3-N reduction by the composite catalyst was also investigated. Free radicals existing within the system were detected by ESR spectroscopy, and the results indicated that CO2- anion free-radicals were generated by the reaction of photogenerated holes and formic acid (HCOOH). At a SiW11/TiO2/Cu dose of 1.2 g L-1 and in the presence of HCOOH as a hole scavenger, the proposed composite catalytically reduced NO3-N anddemonstrated significantadvantages in terms of its photocatalytic activity in comparison with pure TiO2. In particular, the removal efficiency of NO3-N and the selectivity of nitrogen achieved a maximum of 96% and 77%, respectively
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|a Journal Article
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|a Nitrate N
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|a photocatalysis
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|a titanium dioxide
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|a vacant POMs
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|a titanium dioxide
|2 NLM
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|a 15FIX9V2JP
|2 NLM
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|a Nitrates
|2 NLM
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|a polyoxometalate
|2 NLM
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|a Water
|2 NLM
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7 |
|a 059QF0KO0R
|2 NLM
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| 650 |
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|a Titanium
|2 NLM
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| 650 |
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7 |
|a D1JT611TNE
|2 NLM
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| 650 |
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|a Nitrogen
|2 NLM
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| 650 |
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7 |
|a N762921K75
|2 NLM
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| 700 |
1 |
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|a Fu, Weizhang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sun, Shujuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Huaihao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Jinhua
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhong, Wanzhen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, Bin
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Environmental technology
|d 1993
|g 44(2023), 22 vom: 01. Sept., Seite 3393-3404
|w (DE-627)NLM098202545
|x 1479-487X
|7 nnas
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| 773 |
1 |
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|g volume:44
|g year:2023
|g number:22
|g day:01
|g month:09
|g pages:3393-3404
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|u http://dx.doi.org/10.1080/09593330.2022.2058424
|3 Volltext
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|a GBV_ILN_350
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|a AR
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|d 44
|j 2023
|e 22
|b 01
|c 09
|h 3393-3404
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