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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1002/wer.1340
|2 doi
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|a pubmed24n1029.xml
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|a (DE-627)NLM308863739
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|a (NLM)32301533
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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 Bouddouch, Abdessalam
|e verfasserin
|4 aut
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|a Role of thermal decomposition process in the photocatalytic or photoluminescence properties of BiPO4 polymorphs
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 02.11.2020
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|a Date Revised 02.11.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2020 Water Environment Federation.
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|a Thermal decomposition process was used to obtain modified photocatalytic and/or photoluminescence properties of bismuth phosphate polymorphs. The precursor BiPO4 , 0.7H2 O was synthesized by a coprecipitation route. The observed polymorphs were the hexagonal P31 21 hydrate phase BiPO4 , 0.7H2 O at 25°C, a mix system of hexagonal and monoclinic P21 /n phases at 200°C and 400°C, a mix system of monoclinic phases P21 /n and P21 /m at 600°C, and a unique monoclinic phase P21 /m at 900°C. The X-ray diffraction analyses allowed evidencing lattice deformations due to structural defects. The photocatalytic activities in the presence of rhodamine B in aqueous solution were determined using UV light irradiation. The best photocatalytic efficiencies were observed with the mix systems resulting from thermal decomposition at 400 and 600°C. Photoluminescence experiments performed under UV-laser light irradiation revealed unexpected emissions in the green-orange range, with optimal intensities for the mix systems observed at 400°C. The role of structural defects resulting from decomposition process is discussed. PRACTITIONER POINTS: Thermal decomposition is used to introduce structural defects in BiPO4 polymorphs The BiPO4 intermediate systems are used to photodegrade rhodamine B Active species trapping experiments are performed Photoluminescence experiments highlight green-orange emissions Structural defects are at the origin of this photoluminescence
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|a Journal Article
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|a bismuth phosphate
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|a photocatalysis
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|a photoluminescence
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|a structural defects
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|a thermal decomposition
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|a Water
|2 NLM
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|a 059QF0KO0R
|2 NLM
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1 |
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|a Amaterz, Elhassan
|e verfasserin
|4 aut
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|a Bakiz, Bahcine
|e verfasserin
|4 aut
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|a Taoufyq, Aziz
|e verfasserin
|4 aut
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|a Guinneton, Frédéric
|e verfasserin
|4 aut
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|a Villain, Sylvie
|e verfasserin
|4 aut
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|a Gavarri, Jean-Raymond
|e verfasserin
|4 aut
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|a Ezahri, Mohmad
|e verfasserin
|4 aut
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|a Valmalette, Jean-Christophe
|e verfasserin
|4 aut
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|a Benlhachemi, Abdeljalil
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 92(2020), 11 vom: 27. Nov., Seite 1874-1887
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnns
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| 773 |
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|g volume:92
|g year:2020
|g number:11
|g day:27
|g month:11
|g pages:1874-1887
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|u http://dx.doi.org/10.1002/wer.1340
|3 Volltext
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|d 92
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