Effect of Ag-doping on morphology, structure, band gap and photocatalytic activity of bio-mediated TiO2 nanoparticles
The production of nanoparticles using biogenic synthesis techniques is becoming more prominent due to its diverse applications. In this research, the extract from mango leaf was utilized to fabricate a green method for producing Ag-doped and undoped TiO2 nanoparticles that is non-toxic, economical,...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-06-01
|
| Series: | Results in Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590048X24000335 |
| _version_ | 1797263622739591168 |
|---|---|
| author | Tasnuva Zahan Liza Md Mahamud Hasan Tusher Foysal Anwar Maria Ferdous Monika Kazi Faiza Amin F.N.U. Asrafuzzaman |
| author_facet | Tasnuva Zahan Liza Md Mahamud Hasan Tusher Foysal Anwar Maria Ferdous Monika Kazi Faiza Amin F.N.U. Asrafuzzaman |
| author_sort | Tasnuva Zahan Liza |
| collection | DOAJ |
| description | The production of nanoparticles using biogenic synthesis techniques is becoming more prominent due to its diverse applications. In this research, the extract from mango leaf was utilized to fabricate a green method for producing Ag-doped and undoped TiO2 nanoparticles that is non-toxic, economical, and environmentally favorable. Titanium isopropoxide (TTIP) was used as a precursor for Ag-doped and undoped TiO2 nanoparticle production, where the concentrations of the dopant material silver were 2.5 and 3%. Acquired undoped and Ag-doped TiO2 nanoparticles were characterized using several analytical techniques. The morphological, structural, and photocatalytic activity were evaluated using XRD, SEM, EDX, and UV–Vis spectroscopy. In the XRD analysis, undoped and Ag-doped TiO2 nanoparticles indicated the formation of an anatase phase, but there was no rutile phase. The photocatalytic activity and nanoparticles’ band gap were assessed using UV–Vis spectroscopy. The UV–Vis Spectroscopy also revealed a reduced band gap energy (Eg) of Ag-doped TiO2 nanoparticles than the undoped TiO2 Nanoparticles (NPs). The development of photocatalytic activity and features of the “Red-shift” characteristic was established by the progressive photo-degradation of Methylene Blue (MB). The SEM analysis revealed that Ag-doped TiO2 nanoparticles showed more agglomeration than the undoped sample. The average particle size of undoped TiO2 nanoparticles was 38.33 nm, and the size gradually increased for 2.5% and 3% Ag-doping. Utilizing EDX analysis, the doping of Ag+ in the TiO2 lattice structure was confirmed. We can predict from the findings that utilizing biosynthesized TiO2 nanoparticles can be an excellent option for water purification, dye-sensitized solar cells, photo-degradation process, etc., in the long run. |
| first_indexed | 2024-04-25T00:15:56Z |
| format | Article |
| id | doaj.art-a91e1b75a1b44f0b9172cc7476a93bac |
| institution | Directory Open Access Journal |
| issn | 2590-048X |
| language | English |
| last_indexed | 2024-04-25T00:15:56Z |
| publishDate | 2024-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Materials |
| spelling | doaj.art-a91e1b75a1b44f0b9172cc7476a93bac2024-03-13T04:46:19ZengElsevierResults in Materials2590-048X2024-06-0122100559Effect of Ag-doping on morphology, structure, band gap and photocatalytic activity of bio-mediated TiO2 nanoparticlesTasnuva Zahan Liza0Md Mahamud Hasan Tusher1Foysal Anwar2Maria Ferdous Monika3Kazi Faiza Amin4F.N.U. Asrafuzzaman5Department of Materials Science and Engineering, Rajshahi University of Engineering and Technology (RUET), BangladeshDepartment of Materials Science and Engineering, Rajshahi University of Engineering and Technology (RUET), BangladeshDepartment of Materials Science and Engineering, Rajshahi University of Engineering and Technology (RUET), BangladeshDepartment of Materials Science and Engineering, Rajshahi University of Engineering and Technology (RUET), BangladeshDepartment of Materials and Metallurgical Engineering, Bangladesh University of Engineering and Technology (BUET), BangladeshDepartment of Materials Science and Engineering, Rajshahi University of Engineering and Technology (RUET), Bangladesh; Corresponding author.The production of nanoparticles using biogenic synthesis techniques is becoming more prominent due to its diverse applications. In this research, the extract from mango leaf was utilized to fabricate a green method for producing Ag-doped and undoped TiO2 nanoparticles that is non-toxic, economical, and environmentally favorable. Titanium isopropoxide (TTIP) was used as a precursor for Ag-doped and undoped TiO2 nanoparticle production, where the concentrations of the dopant material silver were 2.5 and 3%. Acquired undoped and Ag-doped TiO2 nanoparticles were characterized using several analytical techniques. The morphological, structural, and photocatalytic activity were evaluated using XRD, SEM, EDX, and UV–Vis spectroscopy. In the XRD analysis, undoped and Ag-doped TiO2 nanoparticles indicated the formation of an anatase phase, but there was no rutile phase. The photocatalytic activity and nanoparticles’ band gap were assessed using UV–Vis spectroscopy. The UV–Vis Spectroscopy also revealed a reduced band gap energy (Eg) of Ag-doped TiO2 nanoparticles than the undoped TiO2 Nanoparticles (NPs). The development of photocatalytic activity and features of the “Red-shift” characteristic was established by the progressive photo-degradation of Methylene Blue (MB). The SEM analysis revealed that Ag-doped TiO2 nanoparticles showed more agglomeration than the undoped sample. The average particle size of undoped TiO2 nanoparticles was 38.33 nm, and the size gradually increased for 2.5% and 3% Ag-doping. Utilizing EDX analysis, the doping of Ag+ in the TiO2 lattice structure was confirmed. We can predict from the findings that utilizing biosynthesized TiO2 nanoparticles can be an excellent option for water purification, dye-sensitized solar cells, photo-degradation process, etc., in the long run.http://www.sciencedirect.com/science/article/pii/S2590048X24000335Bio-mediated TiO2 nanoparticlesAg-doped TiO2Mango leaf extractPhotocatalytic activity |
| spellingShingle | Tasnuva Zahan Liza Md Mahamud Hasan Tusher Foysal Anwar Maria Ferdous Monika Kazi Faiza Amin F.N.U. Asrafuzzaman Effect of Ag-doping on morphology, structure, band gap and photocatalytic activity of bio-mediated TiO2 nanoparticles Results in Materials Bio-mediated TiO2 nanoparticles Ag-doped TiO2 Mango leaf extract Photocatalytic activity |
| title | Effect of Ag-doping on morphology, structure, band gap and photocatalytic activity of bio-mediated TiO2 nanoparticles |
| title_full | Effect of Ag-doping on morphology, structure, band gap and photocatalytic activity of bio-mediated TiO2 nanoparticles |
| title_fullStr | Effect of Ag-doping on morphology, structure, band gap and photocatalytic activity of bio-mediated TiO2 nanoparticles |
| title_full_unstemmed | Effect of Ag-doping on morphology, structure, band gap and photocatalytic activity of bio-mediated TiO2 nanoparticles |
| title_short | Effect of Ag-doping on morphology, structure, band gap and photocatalytic activity of bio-mediated TiO2 nanoparticles |
| title_sort | effect of ag doping on morphology structure band gap and photocatalytic activity of bio mediated tio2 nanoparticles |
| topic | Bio-mediated TiO2 nanoparticles Ag-doped TiO2 Mango leaf extract Photocatalytic activity |
| url | http://www.sciencedirect.com/science/article/pii/S2590048X24000335 |
| work_keys_str_mv | AT tasnuvazahanliza effectofagdopingonmorphologystructurebandgapandphotocatalyticactivityofbiomediatedtio2nanoparticles AT mdmahamudhasantusher effectofagdopingonmorphologystructurebandgapandphotocatalyticactivityofbiomediatedtio2nanoparticles AT foysalanwar effectofagdopingonmorphologystructurebandgapandphotocatalyticactivityofbiomediatedtio2nanoparticles AT mariaferdousmonika effectofagdopingonmorphologystructurebandgapandphotocatalyticactivityofbiomediatedtio2nanoparticles AT kazifaizaamin effectofagdopingonmorphologystructurebandgapandphotocatalyticactivityofbiomediatedtio2nanoparticles AT fnuasrafuzzaman effectofagdopingonmorphologystructurebandgapandphotocatalyticactivityofbiomediatedtio2nanoparticles |