Photocatalytic Performance of Sn–Doped TiO<sub>2</sub> Nanopowders for Photocatalytic Degradation of Methyl Orange Dye
The tin-doped TiO<sub>2</sub> powders obtained by sol-gel and microwave-assisted sol-gel methods were investigated. The synthesis took place in a basic medium (pH 10, ammonium hydroxide, 25%) starting from tetrabutyl orthotitanate in its parental alcohol. In the case of the dopant, Tin(I...
| Main Authors: | , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-03-01
|
| Series: | Catalysts |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4344/13/3/534 |
| _version_ | 1797612918352642048 |
|---|---|
| author | Luminița Predoană Elena Mădălina Ciobanu Gabriela Petcu Silviu Preda Jeanina Pandele-Cușu Elena Maria Anghel Simona Viorica Petrescu Daniela Cristina Culiță Adriana Băran Vasile-Adrian Surdu Bogdan Ștefan Vasile Adelina C. Ianculescu |
| author_facet | Luminița Predoană Elena Mădălina Ciobanu Gabriela Petcu Silviu Preda Jeanina Pandele-Cușu Elena Maria Anghel Simona Viorica Petrescu Daniela Cristina Culiță Adriana Băran Vasile-Adrian Surdu Bogdan Ștefan Vasile Adelina C. Ianculescu |
| author_sort | Luminița Predoană |
| collection | DOAJ |
| description | The tin-doped TiO<sub>2</sub> powders obtained by sol-gel and microwave-assisted sol-gel methods were investigated. The synthesis took place in a basic medium (pH 10, ammonium hydroxide, 25%) starting from tetrabutyl orthotitanate in its parental alcohol. In the case of the dopant, Tin(II) 2-ethylhexanoate as SnO<sub>2</sub> precursor was used in the amount of 1, 2, or 4 mol % SnO<sub>2</sub>. Based on thermal analysis data, the powders were thermally treated in air, at 500 °C. The comparative investigation of the structure and morphology of the nanopowders annealed at 500 °C was performed by scanning electron microscopy (SEM), high-resolution transmission electron microscopy with selected area electron diffraction (HRTEM/SAED), scanning transmission electron microscopy (STEM) coupled with EDX mapping, Fourier transmission infrared (FTIR), UV–Vis, Raman and photoluminescence (PL) spectroscopy, X-ray diffraction (XRD), and X-ray florescence spectroscopy (XRF). The obtained materials were tested for the photocatalytic removal of methyl orange dye from aqueous solutions. High degradation efficiencies (around 90%) were obtained by Sn doping after 3 h of UV light irradiation. |
| first_indexed | 2024-03-11T06:47:37Z |
| format | Article |
| id | doaj.art-680d1c04c11f4ed29dcccea9d9c6a394 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-11T06:47:37Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-680d1c04c11f4ed29dcccea9d9c6a3942023-11-17T10:10:46ZengMDPI AGCatalysts2073-43442023-03-0113353410.3390/catal13030534Photocatalytic Performance of Sn–Doped TiO<sub>2</sub> Nanopowders for Photocatalytic Degradation of Methyl Orange DyeLuminița Predoană0Elena Mădălina Ciobanu1Gabriela Petcu2Silviu Preda3Jeanina Pandele-Cușu4Elena Maria Anghel5Simona Viorica Petrescu6Daniela Cristina Culiță7Adriana Băran8Vasile-Adrian Surdu9Bogdan Ștefan Vasile10Adelina C. Ianculescu11Institute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, RomaniaInstitute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, RomaniaInstitute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, RomaniaInstitute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, RomaniaInstitute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, RomaniaInstitute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, RomaniaInstitute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, RomaniaInstitute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, RomaniaInstitute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, RomaniaDepartment of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, “Politehnica” University of Bucharest, 1–7 Gh. Polizu, 011061 Bucharest, RomaniaDepartment of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, “Politehnica” University of Bucharest, 1–7 Gh. Polizu, 011061 Bucharest, RomaniaDepartment of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, “Politehnica” University of Bucharest, 1–7 Gh. Polizu, 011061 Bucharest, RomaniaThe tin-doped TiO<sub>2</sub> powders obtained by sol-gel and microwave-assisted sol-gel methods were investigated. The synthesis took place in a basic medium (pH 10, ammonium hydroxide, 25%) starting from tetrabutyl orthotitanate in its parental alcohol. In the case of the dopant, Tin(II) 2-ethylhexanoate as SnO<sub>2</sub> precursor was used in the amount of 1, 2, or 4 mol % SnO<sub>2</sub>. Based on thermal analysis data, the powders were thermally treated in air, at 500 °C. The comparative investigation of the structure and morphology of the nanopowders annealed at 500 °C was performed by scanning electron microscopy (SEM), high-resolution transmission electron microscopy with selected area electron diffraction (HRTEM/SAED), scanning transmission electron microscopy (STEM) coupled with EDX mapping, Fourier transmission infrared (FTIR), UV–Vis, Raman and photoluminescence (PL) spectroscopy, X-ray diffraction (XRD), and X-ray florescence spectroscopy (XRF). The obtained materials were tested for the photocatalytic removal of methyl orange dye from aqueous solutions. High degradation efficiencies (around 90%) were obtained by Sn doping after 3 h of UV light irradiation.https://www.mdpi.com/2073-4344/13/3/534Sn-doped TiO<sub>2</sub>sol-gel methodmicrowave-assisted so-gel methodphotocatalytic degradation of methyl orange dye |
| spellingShingle | Luminița Predoană Elena Mădălina Ciobanu Gabriela Petcu Silviu Preda Jeanina Pandele-Cușu Elena Maria Anghel Simona Viorica Petrescu Daniela Cristina Culiță Adriana Băran Vasile-Adrian Surdu Bogdan Ștefan Vasile Adelina C. Ianculescu Photocatalytic Performance of Sn–Doped TiO<sub>2</sub> Nanopowders for Photocatalytic Degradation of Methyl Orange Dye Catalysts Sn-doped TiO<sub>2</sub> sol-gel method microwave-assisted so-gel method photocatalytic degradation of methyl orange dye |
| title | Photocatalytic Performance of Sn–Doped TiO<sub>2</sub> Nanopowders for Photocatalytic Degradation of Methyl Orange Dye |
| title_full | Photocatalytic Performance of Sn–Doped TiO<sub>2</sub> Nanopowders for Photocatalytic Degradation of Methyl Orange Dye |
| title_fullStr | Photocatalytic Performance of Sn–Doped TiO<sub>2</sub> Nanopowders for Photocatalytic Degradation of Methyl Orange Dye |
| title_full_unstemmed | Photocatalytic Performance of Sn–Doped TiO<sub>2</sub> Nanopowders for Photocatalytic Degradation of Methyl Orange Dye |
| title_short | Photocatalytic Performance of Sn–Doped TiO<sub>2</sub> Nanopowders for Photocatalytic Degradation of Methyl Orange Dye |
| title_sort | photocatalytic performance of sn doped tio sub 2 sub nanopowders for photocatalytic degradation of methyl orange dye |
| topic | Sn-doped TiO<sub>2</sub> sol-gel method microwave-assisted so-gel method photocatalytic degradation of methyl orange dye |
| url | https://www.mdpi.com/2073-4344/13/3/534 |
| work_keys_str_mv | AT luminitapredoana photocatalyticperformanceofsndopedtiosub2subnanopowdersforphotocatalyticdegradationofmethylorangedye AT elenamadalinaciobanu photocatalyticperformanceofsndopedtiosub2subnanopowdersforphotocatalyticdegradationofmethylorangedye AT gabrielapetcu photocatalyticperformanceofsndopedtiosub2subnanopowdersforphotocatalyticdegradationofmethylorangedye AT silviupreda photocatalyticperformanceofsndopedtiosub2subnanopowdersforphotocatalyticdegradationofmethylorangedye AT jeaninapandelecusu photocatalyticperformanceofsndopedtiosub2subnanopowdersforphotocatalyticdegradationofmethylorangedye AT elenamariaanghel photocatalyticperformanceofsndopedtiosub2subnanopowdersforphotocatalyticdegradationofmethylorangedye AT simonavioricapetrescu photocatalyticperformanceofsndopedtiosub2subnanopowdersforphotocatalyticdegradationofmethylorangedye AT danielacristinaculita photocatalyticperformanceofsndopedtiosub2subnanopowdersforphotocatalyticdegradationofmethylorangedye AT adrianabaran photocatalyticperformanceofsndopedtiosub2subnanopowdersforphotocatalyticdegradationofmethylorangedye AT vasileadriansurdu photocatalyticperformanceofsndopedtiosub2subnanopowdersforphotocatalyticdegradationofmethylorangedye AT bogdanstefanvasile photocatalyticperformanceofsndopedtiosub2subnanopowdersforphotocatalyticdegradationofmethylorangedye AT adelinacianculescu photocatalyticperformanceofsndopedtiosub2subnanopowdersforphotocatalyticdegradationofmethylorangedye |