Physical Characteristics, Blue-Green Band Emission and Photocatalytic Activity of Au-Decorated ZnO Quantum Dots-Based Thick Films Prepared Using the Doctor Blade Technique
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Fatehmulla, A[Fatehmulla, Amanullah] | - |
dc.contributor.author | Shamsan, BA[Shamsan, Belqes A. A.] | - |
dc.contributor.author | El-Naggar, AM[El-Naggar, Ahmed M. M.] | - |
dc.contributor.author | Aldhafiri, AM[Aldhafiri, Abdullah M. M.] | - |
dc.contributor.author | Qureshi, N[Qureshi, Nilam] | - |
dc.contributor.author | Kim, T[Kim, Taesung] | - |
dc.contributor.author | Atif, M[Atif, Muhammad] | - |
dc.contributor.author | Mahmood, A[Mahmood, Asif] | - |
dc.contributor.author | Asif, M[Asif, Mohammad] | - |
dc.date.accessioned | 2023-07-18T01:45:35Z | - |
dc.date.available | 2023-07-18T01:45:35Z | - |
dc.date.created | 2023-07-18 | - |
dc.date.issued | 2023-06 | - |
dc.identifier.issn | 1420-3049 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/106982 | - |
dc.description.abstract | Nanoscale ZnO is a vital semiconductor material whose versatility can be enhanced by sensitizing it with metals, especially noble metals, such as gold (Au). ZnO quantum dots were prepared via a simple co-precipitation technique using 2-methoxy ethanol as the solvent and KOH as the pH regulator for hydrolysis. The synthesized ZnO quantum dots were deposited onto glass slides using a simple doctor blade technique. Subsequently, the films were decorated with gold nanoparticles of different sizes using a drop-casting method. The resultant films were characterized via various strategies to obtain structural, optical, morphological, and particle size information. The X-ray diffraction (XRD) reveals the formation of the hexagonal crystal structure of ZnO. Upon Au nanoparticles loading, peaks due to gold are also observed. The optical properties study shows a slight change in the band gap due to Au loading. Nanoscale sizes of particles have been confirmed through electron microscope studies. P.L. studies display blue and blue-green band emissions. The significant degradation efficiency of 90.2% methylene blue (M.B.) was attained in natural pH in 120 min using pure ZnO catalyst while one drop gold-loaded catalysts, ZnO: Au 5 nm, ZnO: Au 7 nm, ZnO: Au 10 nm and ZnO: Au 15 nm, delivered M.B. degradation efficiency of 74.5% (in 245 min), 63.8% (240 min), 49.6% (240 min) and 34.0% (170 min) in natural pH, respectively. Such films can be helpful in conventional catalysis, photocatalysis, gas sensing, biosensing, and photoactive applications. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | MDPI | - |
dc.subject | OPTICAL-PROPERTIES | - |
dc.subject | NANORODS | - |
dc.subject | NANOCOMPOSITES | - |
dc.title | Physical Characteristics, Blue-Green Band Emission and Photocatalytic Activity of Au-Decorated ZnO Quantum Dots-Based Thick Films Prepared Using the Doctor Blade Technique | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Qureshi, N[Qureshi, Nilam] | - |
dc.contributor.affiliatedAuthor | Kim, T[Kim, Taesung] | - |
dc.identifier.doi | 10.3390/molecules28124644 | - |
dc.identifier.scopusid | 2-s2.0-85163615326 | - |
dc.identifier.wosid | 001015260300001 | - |
dc.identifier.bibliographicCitation | MOLECULES, v.28, no.12 | - |
dc.relation.isPartOf | MOLECULES | - |
dc.citation.title | MOLECULES | - |
dc.citation.volume | 28 | - |
dc.citation.number | 12 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Biochemistry & Molecular Biology | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Biochemistry & Molecular Biology | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.subject.keywordPlus | OPTICAL-PROPERTIES | - |
dc.subject.keywordPlus | NANORODS | - |
dc.subject.keywordPlus | NANOCOMPOSITES | - |
dc.subject.keywordAuthor | co-precipitation | - |
dc.subject.keywordAuthor | ZnO quantum dots | - |
dc.subject.keywordAuthor | Au nanoparticles | - |
dc.subject.keywordAuthor | blue-green band emission | - |
dc.subject.keywordAuthor | photocatalysis | - |
dc.subject.keywordAuthor | photoactive | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(03063) 25-2, SUNGKYUNKWAN-RO, JONGNO-GU, SEOUL, KOREAsamsunglib@skku.edu
COPYRIGHT © 2021 SUNGKYUNKWAN UNIVERSITY ALL RIGHTS RESERVED.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.