One-pot synthesis of nano titanium dioxide in supercritical water
Supercritical hydrothermal synthesis of nanosized metal oxides is of great interest for scholars due to its one-pot and readily realizing commercial production process. Hydrothermal synthesis of nanosized TiO2 in subcritical and supercritical water was investigated with different reaction temperatur...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2020-05-01
|
| Series: | Nanotechnology Reviews |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/ntrev-2020-0030 |
| _version_ | 1818330097589944320 |
|---|---|
| author | Sun Panpan Wang Shuzhong Li Yanhui Zhang Tuo Wang Dong Zhang Baoquan Yang Jianqiao Xu Donghai |
| author_facet | Sun Panpan Wang Shuzhong Li Yanhui Zhang Tuo Wang Dong Zhang Baoquan Yang Jianqiao Xu Donghai |
| author_sort | Sun Panpan |
| collection | DOAJ |
| description | Supercritical hydrothermal synthesis of nanosized metal oxides is of great interest for scholars due to its one-pot and readily realizing commercial production process. Hydrothermal synthesis of nanosized TiO2 in subcritical and supercritical water was investigated with different reaction temperatures (250–450°C), time (3–10 min), precursor species (Ti(SO4)2, TiCl4), and the addition of a surfactant (CH3(CH2)5NH2). TiO2 synthesized under supercritical state has a higher degree of crystallinity when compared with TiO2 obtained from subcritical state, which is attributed to a higher reaction rate. Extending reaction time from 3 to 10 min leads to the growth of crystal and broader size distribution (36.66 ± 8.5 nm). More uniform products can be obtained when Ti(SO4)2 acting as the precursor compared with TiCl4 being the precursor. The application of surfactant CH3(CH2)5NH2 in the synthesis makes chemical bonding between the particle surface and organic ligand. It affects the growth direction of TiO2 crystal; as a result, rod-like TiO2 crystal is obtained. |
| first_indexed | 2024-12-13T12:58:32Z |
| format | Article |
| id | doaj.art-c563fa222bad41fe8ca40496037afb50 |
| institution | Directory Open Access Journal |
| issn | 2191-9097 |
| language | English |
| last_indexed | 2024-12-13T12:58:32Z |
| publishDate | 2020-05-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanotechnology Reviews |
| spelling | doaj.art-c563fa222bad41fe8ca40496037afb502022-12-21T23:45:06ZengDe GruyterNanotechnology Reviews2191-90972020-05-019141041710.1515/ntrev-2020-0030ntrev-2020-0030One-pot synthesis of nano titanium dioxide in supercritical waterSun Panpan0Wang Shuzhong1Li Yanhui2Zhang Tuo3Wang Dong4Zhang Baoquan5Yang Jianqiao6Xu Donghai7Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Department of Thermal Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, ChinaKey Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Department of Thermal Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, ChinaKey Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Department of Thermal Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, ChinaKey Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Department of Thermal Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, ChinaKey Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Department of Thermal Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, ChinaKey Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Department of Thermal Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, ChinaKey Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Department of Thermal Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, ChinaKey Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Department of Thermal Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, ChinaSupercritical hydrothermal synthesis of nanosized metal oxides is of great interest for scholars due to its one-pot and readily realizing commercial production process. Hydrothermal synthesis of nanosized TiO2 in subcritical and supercritical water was investigated with different reaction temperatures (250–450°C), time (3–10 min), precursor species (Ti(SO4)2, TiCl4), and the addition of a surfactant (CH3(CH2)5NH2). TiO2 synthesized under supercritical state has a higher degree of crystallinity when compared with TiO2 obtained from subcritical state, which is attributed to a higher reaction rate. Extending reaction time from 3 to 10 min leads to the growth of crystal and broader size distribution (36.66 ± 8.5 nm). More uniform products can be obtained when Ti(SO4)2 acting as the precursor compared with TiCl4 being the precursor. The application of surfactant CH3(CH2)5NH2 in the synthesis makes chemical bonding between the particle surface and organic ligand. It affects the growth direction of TiO2 crystal; as a result, rod-like TiO2 crystal is obtained.https://doi.org/10.1515/ntrev-2020-0030supercritical waternanoparticlestitanium dioxide |
| spellingShingle | Sun Panpan Wang Shuzhong Li Yanhui Zhang Tuo Wang Dong Zhang Baoquan Yang Jianqiao Xu Donghai One-pot synthesis of nano titanium dioxide in supercritical water Nanotechnology Reviews supercritical water nanoparticles titanium dioxide |
| title | One-pot synthesis of nano titanium dioxide in supercritical water |
| title_full | One-pot synthesis of nano titanium dioxide in supercritical water |
| title_fullStr | One-pot synthesis of nano titanium dioxide in supercritical water |
| title_full_unstemmed | One-pot synthesis of nano titanium dioxide in supercritical water |
| title_short | One-pot synthesis of nano titanium dioxide in supercritical water |
| title_sort | one pot synthesis of nano titanium dioxide in supercritical water |
| topic | supercritical water nanoparticles titanium dioxide |
| url | https://doi.org/10.1515/ntrev-2020-0030 |
| work_keys_str_mv | AT sunpanpan onepotsynthesisofnanotitaniumdioxideinsupercriticalwater AT wangshuzhong onepotsynthesisofnanotitaniumdioxideinsupercriticalwater AT liyanhui onepotsynthesisofnanotitaniumdioxideinsupercriticalwater AT zhangtuo onepotsynthesisofnanotitaniumdioxideinsupercriticalwater AT wangdong onepotsynthesisofnanotitaniumdioxideinsupercriticalwater AT zhangbaoquan onepotsynthesisofnanotitaniumdioxideinsupercriticalwater AT yangjianqiao onepotsynthesisofnanotitaniumdioxideinsupercriticalwater AT xudonghai onepotsynthesisofnanotitaniumdioxideinsupercriticalwater |