Enhancement of photocatalytic activity using ternary Au@Pt-TiO2/nano-GO heterojunction for environmental remediation and clean energy production
In the present study, an attempt has been made to design ternary multifunctional nanocomposite photocatalyst based on Au@Pt-TiO _2 core–shell nanoparticles anchored onto nano-graphene oxide (nano-GO) through facile one-pot solvothermal process. Evaluation of UV and visible light photocatalytic activ...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2021-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/abf083 |
| _version_ | 1797746645378531328 |
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| author | Nesrine Ben Saber Amine Mezni Arwa Alrooqi Tariq Altalhi |
| author_facet | Nesrine Ben Saber Amine Mezni Arwa Alrooqi Tariq Altalhi |
| author_sort | Nesrine Ben Saber |
| collection | DOAJ |
| description | In the present study, an attempt has been made to design ternary multifunctional nanocomposite photocatalyst based on Au@Pt-TiO _2 core–shell nanoparticles anchored onto nano-graphene oxide (nano-GO) through facile one-pot solvothermal process. Evaluation of UV and visible light photocatalytic activities against MB dye and diuron pesticide decomposition, demonstrated a remarkable enhancement in photocatalytic performances, which indicates their potential as powerful photocatalyst. The enhancement of the photocatalytic activity of the designed ternary Au@Pt-TiO _2 /nano-GO could be attributed to the heterojunction structure and to the enhanced charge separation and light absorption of nano-GO and Au, Pt NPs. Before application, the ternary Au@Pt-TiO _2 /nano-GO photocatalyst was fully characterised (structural, morphology and composition) using powerful instruments including x-ray diffraction powder (XRD), x-ray photoelectron spectroscopy (XPS), Raman spectroscopy and high-resolution transmission electron microscopy (HRTEM). The optical response was investigated using UV-Visible spectrophotometer. The ternary Au@Pt-TiO _2 /nano-GO photocatalyst exhibits high crystallinity and high purity with uniform behaviour on size and shape. The hybrid Au@Pt-TiO _2 nanoparticles were found to be well dispersed on nano-GO surface, which make this heterojunction very efficient for photocatalytic applications. |
| first_indexed | 2024-03-12T15:39:48Z |
| format | Article |
| id | doaj.art-017049fbafb949c08b0d50f145aa1364 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:39:48Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-017049fbafb949c08b0d50f145aa13642023-08-09T16:01:19ZengIOP PublishingMaterials Research Express2053-15912021-01-018404501410.1088/2053-1591/abf083Enhancement of photocatalytic activity using ternary Au@Pt-TiO2/nano-GO heterojunction for environmental remediation and clean energy productionNesrine Ben Saber0https://orcid.org/0000-0002-7327-661XAmine Mezni1https://orcid.org/0000-0002-2915-4834Arwa Alrooqi2Tariq Altalhi3Department of Chemistry, College of Science, Taif University , PO Box 11099, Taif 21944, Saudi Arabia; Université de Carthage, Faculté des Sciences de Bizerte, LR18 ES11, Laboratoire des composés hétéro-organiques et des matériaux nanostructurés, 7021, Zarzouna, TunisieDepartment of Chemistry, College of Science, Taif University , PO Box 11099, Taif 21944, Saudi ArabiaDepartment of Chemistry, Faculty of Science, Albaha University , Saudi ArabiaDepartment of Chemistry, College of Science, Taif University , PO Box 11099, Taif 21944, Saudi ArabiaIn the present study, an attempt has been made to design ternary multifunctional nanocomposite photocatalyst based on Au@Pt-TiO _2 core–shell nanoparticles anchored onto nano-graphene oxide (nano-GO) through facile one-pot solvothermal process. Evaluation of UV and visible light photocatalytic activities against MB dye and diuron pesticide decomposition, demonstrated a remarkable enhancement in photocatalytic performances, which indicates their potential as powerful photocatalyst. The enhancement of the photocatalytic activity of the designed ternary Au@Pt-TiO _2 /nano-GO could be attributed to the heterojunction structure and to the enhanced charge separation and light absorption of nano-GO and Au, Pt NPs. Before application, the ternary Au@Pt-TiO _2 /nano-GO photocatalyst was fully characterised (structural, morphology and composition) using powerful instruments including x-ray diffraction powder (XRD), x-ray photoelectron spectroscopy (XPS), Raman spectroscopy and high-resolution transmission electron microscopy (HRTEM). The optical response was investigated using UV-Visible spectrophotometer. The ternary Au@Pt-TiO _2 /nano-GO photocatalyst exhibits high crystallinity and high purity with uniform behaviour on size and shape. The hybrid Au@Pt-TiO _2 nanoparticles were found to be well dispersed on nano-GO surface, which make this heterojunction very efficient for photocatalytic applications.https://doi.org/10.1088/2053-1591/abf083solvothermaltitanium dioxideplatinum nanoparticlesgold nanoparticlesnano-GOheterojunction |
| spellingShingle | Nesrine Ben Saber Amine Mezni Arwa Alrooqi Tariq Altalhi Enhancement of photocatalytic activity using ternary Au@Pt-TiO2/nano-GO heterojunction for environmental remediation and clean energy production Materials Research Express solvothermal titanium dioxide platinum nanoparticles gold nanoparticles nano-GO heterojunction |
| title | Enhancement of photocatalytic activity using ternary Au@Pt-TiO2/nano-GO heterojunction for environmental remediation and clean energy production |
| title_full | Enhancement of photocatalytic activity using ternary Au@Pt-TiO2/nano-GO heterojunction for environmental remediation and clean energy production |
| title_fullStr | Enhancement of photocatalytic activity using ternary Au@Pt-TiO2/nano-GO heterojunction for environmental remediation and clean energy production |
| title_full_unstemmed | Enhancement of photocatalytic activity using ternary Au@Pt-TiO2/nano-GO heterojunction for environmental remediation and clean energy production |
| title_short | Enhancement of photocatalytic activity using ternary Au@Pt-TiO2/nano-GO heterojunction for environmental remediation and clean energy production |
| title_sort | enhancement of photocatalytic activity using ternary au pt tio2 nano go heterojunction for environmental remediation and clean energy production |
| topic | solvothermal titanium dioxide platinum nanoparticles gold nanoparticles nano-GO heterojunction |
| url | https://doi.org/10.1088/2053-1591/abf083 |
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