Highly active ZnO-based biomimetic fern-like microleaves for photocatalytic water decontamination using sunlight

Here we present the highly enhanced sunlight photocatalytic efficiency and photocorrosion resistance of biomimetic ZnO-modified micro/nanofern fractal architectures, which are synthesized by using a novel, simple, inexpensive and green electrochemical deposition approach in high stirring conditions....

Full description

Bibliographic Details
Authors: Serrà, Albert|||0000-0003-0147-3400, Zhang, Yue|||0000-0001-7106-363X, Sepúlveda, Borja|||0000-0002-1562-7602, Gomez, Elvira|||0000-0002-9223-6357, Nogués, Josep|||0000-0003-4616-1371, Michler, Johann|||0000-0001-8860-4068, Philippe, Laetitia|||0000-0003-0928-4487
Format: article
Publication Date:2019
Country:España
Institution:Universitat Autònoma de Barcelona
Repository:Dipòsit Digital de Documents de la UAB
Language:English
OAI Identifier:oai:ddd.uab.cat:214201
Online Access:https://ddd.uab.cat/record/214201
https://dx.doi.org/urn:doi:10.1016/j.apcatb.2019.02.017
Access Level:Open access
Keyword:Sunlight photocatalysis
Biomimetic
Bioinspiration
Persistent organic pollutants
Electrodeposition
id ES_e6596fd583db3fa021f8a2c7147dfa2d
oai_identifier_str oai:ddd.uab.cat:214201
network_acronym_str ES
network_name_str España
repository_id_str
spelling Highly active ZnO-based biomimetic fern-like microleaves for photocatalytic water decontamination using sunlightSerrà, Albert|||0000-0003-0147-3400Zhang, Yue|||0000-0001-7106-363XSepúlveda, Borja|||0000-0002-1562-7602Gomez, Elvira|||0000-0002-9223-6357Nogués, Josep|||0000-0003-4616-1371Michler, Johann|||0000-0001-8860-4068Philippe, Laetitia|||0000-0003-0928-4487Sunlight photocatalysisBiomimeticBioinspirationPersistent organic pollutantsElectrodepositionHere we present the highly enhanced sunlight photocatalytic efficiency and photocorrosion resistance of biomimetic ZnO-modified micro/nanofern fractal architectures, which are synthesized by using a novel, simple, inexpensive and green electrochemical deposition approach in high stirring conditions. Such fern-like hierarchical structures simultaneously combine enhanced angle independent light trapping and surface/bulk modifications of the ZnO morphology to drastically increase: i) the light trapping and absorption in the visible near-infrared range, and ii) the surface to volume ratio of the architecture. This combination is crucial for boosting the sunlight photocatalytic efficiency. To modulate the electronic properties for extending the operation of the ZnO photocatalysts into the visible domain we have used three different modification approaches: sulfidation (leading to a ZnS shell), Ag decoration, and Ni-doping. The different ZnO-modified bioinspired fern-like fractal structures have been used to demonstrate their efficiency in the photodegradation and photoremediation of three different persistent organic pollutants -methylene blue, 4-nitrophenol, and Rhodamine B - under UV light, simulated and natural UV-filtered sunlight. Remarkably, the ZnO@ZnS core@shell structures exhibited an outstanding photocatalytic activity compared to the pristine ZnO catalyst, with over 6-fold increase in the pollutant degradation rate when using solar light. In fact, the catalytic performance of the ZnO@ZnS micro/nanoferns for the photoremediation of persistent organic pollutants is comparable to or better than the most competitive state-of-the-art ZnO photocatalysts, but showing a negligible photocorrosion. Ag-decorated ZnO, and Ni-doped ZnO exhibited similar excellent visible-sunlight photodegradation efficiency. Although the Ni-doped photocatalysts showed a relatively poor photocorrosion resistance, it was acceptable for Ag-decorated ZnO. Therefore, the easy fabrication and the capacity to drastically enhance the sunlight photocatalytic efficiency of the ZnO@ZnS bioinspired micro/nanoferns, together with their practically negligible photocorrosion and simple recyclability in terms of non-catalyst poisoning, makes them very promising photocatalysts for water remediation. 22019-01-0120192019-01-01Articlehttp://purl.org/coar/resource_type/c_6501SMURhttp://purl.org/coar/version/c_71e4c1898caa6e32info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/214201https://dx.doi.org/urn:doi:10.1016/j.apcatb.2019.02.017reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengAgència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2017/SGR-292Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 PCIN2016-093Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 TEC2017-85059-C3-2-RMinisterio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2017-0706open accesshttp://purl.org/coar/access_right/c_abf2Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.https://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2142012026-06-06T12:50:31Z
dc.title.none.fl_str_mv Highly active ZnO-based biomimetic fern-like microleaves for photocatalytic water decontamination using sunlight
title Highly active ZnO-based biomimetic fern-like microleaves for photocatalytic water decontamination using sunlight
spellingShingle Highly active ZnO-based biomimetic fern-like microleaves for photocatalytic water decontamination using sunlight
Serrà, Albert|||0000-0003-0147-3400
Sunlight photocatalysis
Biomimetic
Bioinspiration
Persistent organic pollutants
Electrodeposition
title_short Highly active ZnO-based biomimetic fern-like microleaves for photocatalytic water decontamination using sunlight
title_full Highly active ZnO-based biomimetic fern-like microleaves for photocatalytic water decontamination using sunlight
title_fullStr Highly active ZnO-based biomimetic fern-like microleaves for photocatalytic water decontamination using sunlight
title_full_unstemmed Highly active ZnO-based biomimetic fern-like microleaves for photocatalytic water decontamination using sunlight
title_sort Highly active ZnO-based biomimetic fern-like microleaves for photocatalytic water decontamination using sunlight
dc.creator.none.fl_str_mv Serrà, Albert|||0000-0003-0147-3400
Zhang, Yue|||0000-0001-7106-363X
Sepúlveda, Borja|||0000-0002-1562-7602
Gomez, Elvira|||0000-0002-9223-6357
Nogués, Josep|||0000-0003-4616-1371
Michler, Johann|||0000-0001-8860-4068
Philippe, Laetitia|||0000-0003-0928-4487
author Serrà, Albert|||0000-0003-0147-3400
author_facet Serrà, Albert|||0000-0003-0147-3400
Zhang, Yue|||0000-0001-7106-363X
Sepúlveda, Borja|||0000-0002-1562-7602
Gomez, Elvira|||0000-0002-9223-6357
Nogués, Josep|||0000-0003-4616-1371
Michler, Johann|||0000-0001-8860-4068
Philippe, Laetitia|||0000-0003-0928-4487
author_role author
author2 Zhang, Yue|||0000-0001-7106-363X
Sepúlveda, Borja|||0000-0002-1562-7602
Gomez, Elvira|||0000-0002-9223-6357
Nogués, Josep|||0000-0003-4616-1371
Michler, Johann|||0000-0001-8860-4068
Philippe, Laetitia|||0000-0003-0928-4487
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Sunlight photocatalysis
Biomimetic
Bioinspiration
Persistent organic pollutants
Electrodeposition
topic Sunlight photocatalysis
Biomimetic
Bioinspiration
Persistent organic pollutants
Electrodeposition
description Here we present the highly enhanced sunlight photocatalytic efficiency and photocorrosion resistance of biomimetic ZnO-modified micro/nanofern fractal architectures, which are synthesized by using a novel, simple, inexpensive and green electrochemical deposition approach in high stirring conditions. Such fern-like hierarchical structures simultaneously combine enhanced angle independent light trapping and surface/bulk modifications of the ZnO morphology to drastically increase: i) the light trapping and absorption in the visible near-infrared range, and ii) the surface to volume ratio of the architecture. This combination is crucial for boosting the sunlight photocatalytic efficiency. To modulate the electronic properties for extending the operation of the ZnO photocatalysts into the visible domain we have used three different modification approaches: sulfidation (leading to a ZnS shell), Ag decoration, and Ni-doping. The different ZnO-modified bioinspired fern-like fractal structures have been used to demonstrate their efficiency in the photodegradation and photoremediation of three different persistent organic pollutants -methylene blue, 4-nitrophenol, and Rhodamine B - under UV light, simulated and natural UV-filtered sunlight. Remarkably, the ZnO@ZnS core@shell structures exhibited an outstanding photocatalytic activity compared to the pristine ZnO catalyst, with over 6-fold increase in the pollutant degradation rate when using solar light. In fact, the catalytic performance of the ZnO@ZnS micro/nanoferns for the photoremediation of persistent organic pollutants is comparable to or better than the most competitive state-of-the-art ZnO photocatalysts, but showing a negligible photocorrosion. Ag-decorated ZnO, and Ni-doped ZnO exhibited similar excellent visible-sunlight photodegradation efficiency. Although the Ni-doped photocatalysts showed a relatively poor photocorrosion resistance, it was acceptable for Ag-decorated ZnO. Therefore, the easy fabrication and the capacity to drastically enhance the sunlight photocatalytic efficiency of the ZnO@ZnS bioinspired micro/nanoferns, together with their practically negligible photocorrosion and simple recyclability in terms of non-catalyst poisoning, makes them very promising photocatalysts for water remediation.
publishDate 2019
dc.date.none.fl_str_mv 2
2019-01-01
2019
2019-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
SMUR
http://purl.org/coar/version/c_71e4c1898caa6e32
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/214201
https://dx.doi.org/urn:doi:10.1016/j.apcatb.2019.02.017
url https://ddd.uab.cat/record/214201
https://dx.doi.org/urn:doi:10.1016/j.apcatb.2019.02.017
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2017/SGR-292
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 PCIN2016-093
Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 TEC2017-85059-C3-2-R
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2017-0706
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869422758432079872
score 15.300724

Similar Items