Ultra-small Ni@NiFe2O4/TiO2 magnetic nanocomposites activated peroxymonosulphate for solar light-driven photocatalytic mineralization of Simazine
In the heterogeneous photocatalytic degradation of environmental contaminants the recovery, reuse of employed nanocatalyst was crucial and it is essentially required for the scale up applications. Besides, designing a magnetic material with heterojunction that can effectively oxidize the toxic organ...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023
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| Subjects: | |
| Online Access: | http://eprints.uanl.mx/26931/7/26931.pdf |
| _version_ | 1824420616695971840 |
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| author | Ashina, C. Pugazhenthiran, N. Sathishkumar, Panneerselvam Selvaraj, M. Mohammed, A. Assiri Rajasekaran, Chandrasekaran Gracia Pinilla, Miguel Ángel Mangalaraja, Ramalinga Viswanathan |
| author_facet | Ashina, C. Pugazhenthiran, N. Sathishkumar, Panneerselvam Selvaraj, M. Mohammed, A. Assiri Rajasekaran, Chandrasekaran Gracia Pinilla, Miguel Ángel Mangalaraja, Ramalinga Viswanathan |
| author_sort | Ashina, C. |
| collection | Repositorio Institucional |
| description | In the heterogeneous photocatalytic degradation of environmental contaminants the recovery, reuse of employed nanocatalyst was crucial and it is essentially required for the scale up applications. Besides, designing a magnetic material with heterojunction that can effectively oxidize the toxic organic contaminants to non-toxic substance under different reaction conditions including direct solar light irradiation remains a challenge. Considering the above facts, herein, we tailored heterojunction between the magnetic materials and non-magnetic materials with ultra-small Ni nanoparticles modified NiFe2O4/TiO2 nanostructures (Ni@NiFe2O4/TiO2 magnetic nanocomposites) through a simple sonochemical route. The Raman phonons at ∼ 540 cm−1 consistent to nickel metal nanoparticles and the spinel ferrites crystal structure confirmed the formation of Ni@NiFe2O4/TiO2 magnetic nanocomposites. The reduced optical bandgap of the resulting nanocomposites indicated the effective absorption of direct solar light irradiation when compared to the bare TiO2. Thus in-turn, enhanced the photocatalytic efficiency of simazine degradation in the presence of Ni@NiFe2O4/TiO2 magnetic nanocomposites (k´= 11.0 × 10–4 s−1) and augmented the activation of peroxymonosulphate (PMS) in the presence of Ni@NiFe2O4/TiO2 magnetic nanocomposites (k´= 32.5 × 10–4 s−1). Ni@NiFe2O4/TiO2 +PMS exhibited 3 folds enhanced efficiency in the presence of sunlight. The as-prepared NiFe2O4/TiO2 magnetic nanocatalysts were more stable and the efficiency of simazine oxidation was approximately same for the continuous five cycles at the optimized experimental conditions. The Ni@NiFe2O4/TiO2 magnetic nanocomposites preparation and the activation of PMS may promise the applications in an efficient wastewater treatment. |
| format | Article |
| id | eprints-26931 |
| institution | UANL |
| language | English |
| publishDate | 2023 |
| publisher | Elsevier |
| record_format | eprints |
| spelling | eprints-269312024-04-15T17:10:47Z http://eprints.uanl.mx/26931/ Ultra-small Ni@NiFe2O4/TiO2 magnetic nanocomposites activated peroxymonosulphate for solar light-driven photocatalytic mineralization of Simazine Ashina, C. Pugazhenthiran, N. Sathishkumar, Panneerselvam Selvaraj, M. Mohammed, A. Assiri Rajasekaran, Chandrasekaran Gracia Pinilla, Miguel Ángel Mangalaraja, Ramalinga Viswanathan QC Física In the heterogeneous photocatalytic degradation of environmental contaminants the recovery, reuse of employed nanocatalyst was crucial and it is essentially required for the scale up applications. Besides, designing a magnetic material with heterojunction that can effectively oxidize the toxic organic contaminants to non-toxic substance under different reaction conditions including direct solar light irradiation remains a challenge. Considering the above facts, herein, we tailored heterojunction between the magnetic materials and non-magnetic materials with ultra-small Ni nanoparticles modified NiFe2O4/TiO2 nanostructures (Ni@NiFe2O4/TiO2 magnetic nanocomposites) through a simple sonochemical route. The Raman phonons at ∼ 540 cm−1 consistent to nickel metal nanoparticles and the spinel ferrites crystal structure confirmed the formation of Ni@NiFe2O4/TiO2 magnetic nanocomposites. The reduced optical bandgap of the resulting nanocomposites indicated the effective absorption of direct solar light irradiation when compared to the bare TiO2. Thus in-turn, enhanced the photocatalytic efficiency of simazine degradation in the presence of Ni@NiFe2O4/TiO2 magnetic nanocomposites (k´= 11.0 × 10–4 s−1) and augmented the activation of peroxymonosulphate (PMS) in the presence of Ni@NiFe2O4/TiO2 magnetic nanocomposites (k´= 32.5 × 10–4 s−1). Ni@NiFe2O4/TiO2 +PMS exhibited 3 folds enhanced efficiency in the presence of sunlight. The as-prepared NiFe2O4/TiO2 magnetic nanocatalysts were more stable and the efficiency of simazine oxidation was approximately same for the continuous five cycles at the optimized experimental conditions. The Ni@NiFe2O4/TiO2 magnetic nanocomposites preparation and the activation of PMS may promise the applications in an efficient wastewater treatment. Elsevier 2023-11-08 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/26931/7/26931.pdf http://eprints.uanl.mx/26931/7.haspreviewThumbnailVersion/26931.pdf Ashina, C. y Pugazhenthiran, N. y Sathishkumar, Panneerselvam y Selvaraj, M. y Mohammed, A. Assiri y Rajasekaran, Chandrasekaran y Gracia Pinilla, Miguel Ángel y Mangalaraja, Ramalinga Viswanathan (2023) Ultra-small Ni@NiFe2O4/TiO2 magnetic nanocomposites activated peroxymonosulphate for solar light-driven photocatalytic mineralization of Simazine. Journal of environmental chemical engineering, 11 (6). pp. 111342-111349. ISSN 2213-3437 https://www.sciencedirect.com/science/article/abs/pii/S221334372302081X |
| spellingShingle | QC Física Ashina, C. Pugazhenthiran, N. Sathishkumar, Panneerselvam Selvaraj, M. Mohammed, A. Assiri Rajasekaran, Chandrasekaran Gracia Pinilla, Miguel Ángel Mangalaraja, Ramalinga Viswanathan Ultra-small Ni@NiFe2O4/TiO2 magnetic nanocomposites activated peroxymonosulphate for solar light-driven photocatalytic mineralization of Simazine |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Ultra-small Ni@NiFe2O4/TiO2 magnetic nanocomposites activated peroxymonosulphate for solar light-driven photocatalytic mineralization of Simazine |
| title_full | Ultra-small Ni@NiFe2O4/TiO2 magnetic nanocomposites activated peroxymonosulphate for solar light-driven photocatalytic mineralization of Simazine |
| title_fullStr | Ultra-small Ni@NiFe2O4/TiO2 magnetic nanocomposites activated peroxymonosulphate for solar light-driven photocatalytic mineralization of Simazine |
| title_full_unstemmed | Ultra-small Ni@NiFe2O4/TiO2 magnetic nanocomposites activated peroxymonosulphate for solar light-driven photocatalytic mineralization of Simazine |
| title_short | Ultra-small Ni@NiFe2O4/TiO2 magnetic nanocomposites activated peroxymonosulphate for solar light-driven photocatalytic mineralization of Simazine |
| title_sort | ultra small ni nife2o4 tio2 magnetic nanocomposites activated peroxymonosulphate for solar light driven photocatalytic mineralization of simazine |
| topic | QC Física |
| url | http://eprints.uanl.mx/26931/7/26931.pdf |
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