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Graphene quantum dots/NiTi layered double hydroxide heterojunction as a highly efficient De-NOx photocatalyst with long persistent post-illumination action
dc.contributor.author | Fragoso, J. | |
dc.contributor.author | Pastor, Adrián | |
dc.contributor.author | Cruz-Yusta, M. | |
dc.contributor.author | Martin, Francisco | |
dc.contributor.author | Miguel, Gustavo de | |
dc.contributor.author | Pavlovic, I. | |
dc.contributor.author | Sánchez, Mercedes | |
dc.contributor.author | Sánchez Granados, Luis | |
dc.date.accessioned | 2022-11-24T09:21:15Z | |
dc.date.available | 2022-11-24T09:21:15Z | |
dc.date.issued | 2023 | |
dc.identifier.uri | http://hdl.handle.net/10396/24370 | |
dc.description | Embargado hasta 01/03/2025 | es_ES |
dc.description | Datasets del documento disponibles en: http://hdl.handle.net/10396/24376 | es_ES |
dc.description.abstract | Persistent photocatalysis is an attractive process to broaden the spectrum of environmental applications. Herein, blue luminescent graphene quantum dots (GQD) are incorporated into NiTi-based layered double hydroxide nanosheets (NiTi-LDH) by a facile impregnation method. The enhanced performance of GQD/NiTi-LDH leads to excellent NO photo-removal activity (61 %) and insignificant NO2 release (< 0.6 %), beating the standard TiO2 P25 (48 % and 14.2 %, respectively). Interestingly, after the end of light irradiation period, GQD/NiTi-LDH maintained a NO removal efficiency higher than 20 % for up to 75 min regardless of the previous irradiation time. This De-NOx post-photocatalytic process is the most effective reported at present. The dark/light mechanism is explained by the electron storage capacity of NiTi-LDH under light excitation, which is assisted by the electron migration from GQD to NiTi-LDH. Once the light is shut off, electrons are released and take part in the superoxide radical generation. | es_ES |
dc.format.mimetype | application/pdf | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation.ispartof | http://hdl.handle.net/10396/24376 | |
dc.rights | https://creativecommons.org/licenses/by-nc-nd/4.0/ | es_ES |
dc.source | Applied Catalysis B: Environmental 322, 122115 (2023) | es_ES |
dc.subject | Graphene | es_ES |
dc.subject | LDH | es_ES |
dc.subject | NOx | es_ES |
dc.subject | Persistent photocatalysis | es_ES |
dc.title | Graphene quantum dots/NiTi layered double hydroxide heterojunction as a highly efficient De-NOx photocatalyst with long persistent post-illumination action | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.relation.publisherversion | https://doi.org/10.1016/j.apcatb.2022.122115 | es_ES |
dc.relation.projectID | Gobierno de España. MCIN/AEI/10.13039/501100011033 | es_ES |
dc.relation.projectID | Gobierno de España. MCIN PID2020–117516 GB-I00 | es_ES |
dc.relation.projectID | Gobierno de España. PRE2018–084594 | es_ES |
dc.relation.projectID | Gobierno de España. MCIN PID2020–117832RB-I00 | es_ES |
dc.relation.projectID | Junta de Andalucía. PY20_00365 | es_ES |
dc.relation.projectID | Junta de Andalucía. 1380752-R | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/embargoedAccess | es_ES |
dc.date.embargoEndDate | info:eu-repo/date/embargoEnd/2025-03-01 |