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Chinda Ngernsuttichaiporn. An Alkoxide Free Sol-Gel Synthesis of Nanosized TiO2. (). Kasetsart University. Office of the University Library. : , ม.ค.-ธ.ค. 2550.
An Alkoxide Free Sol-Gel Synthesis of Nanosized TiO2
Name: Kornvalai Panpae
Organization :
King Mongkuts University of Technology Thonburi. Faculty of Science. Department of Chemistry
Name: Suppalak Angkaew
Organization :
King Mongkuts University of Technology Thonburi. Faculty of Science. Department of Chemistry
Name: Chiravadee Sritara
Organization :
King Mongkuts University of Technology Thonburi. Faculty of Science. Department of Chemistry
Organization :
King Mongkuts University of Technology Thonburi. Faculty of Science. Department of Chemistry
keyword:
sol-gel
;
anatase
;
titania
Abstract:
Nanosized TiO2 with anatase structure has been prepared by a non-alkoxide sol-gel route from an aqueous solution of titanyl sulfate. This paper investigated the influence of stirrer speed on anatase precipitation carried out in batch mode. Stirrer speed was varied between 400 and 1000 rpm. The intensity of stirring determined the final particle size of anatase aggregates in suspension. Changes to primary agglomerate and crystal population due to varying stirrer speed were reported. In our study, the smallest aggregates (mean size of 6-8 nm) were obtained at a stirrer speed of 1000 rpm. It was also found that the anatase to rutile phase transformation began at 800°C of calcination. A calcination treatment, from 400 to 1000°C, was applied. The degree of crystallinity and purity of the synthesized materials were reported. The crystalline anatase particles had an average particle size of 10-20 nm between the calcination temperature 400-600°C. The powders were characterized by powder X-ray diffraction (XRD), the morphology and grain size of the titania particles were examined by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). XRD patterns indicated that the samples were crystalline titania which had very broad and small peaks of anatase phase. The TEM observations showed the vast majority of particles were quasispherical; the average size distribution of particle was about 20 nm. The TEM results supported the conclusions derived from the XRD data. Finally, the amorphous hydrous and crystalline titania particles were characterized by thermogravimetric (TGA) and differential thermal analysis (DTA).
Kasetsart University. Office of the University Library
Address:
BANGKOK
Email:
tdckulib@ku.ac.th
Created:
ม.ค.-ธ.ค. 2550
Modified:
2552-08-31
Issued:
2009-08-31
บทความ/Article
application/pdf
วิทยาสารเกษตรศาสตร์ (วิทยาศาสตร์), 41(5) หน้า 178-185
eng
©copyrights Kasetsart University
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ใช้เวลา
0.033409 วินาที
Kornvalai Panpae
| Title | Contributor | Type |
|---|---|---|
| Synthesis of Zn (II)-Oxazoline/Pyridine Derivative Complex as a Molecular Sensing Ensemble for Aspartate and Histidin
มหาวิทยาลัยเกษตรศาสตร์ Kornvalai Panpae;Thongthawat Rerkchanchai;Thatree Wongsrichalalai | บทความ/Article | |
| An Alkoxide Free Sol-Gel Synthesis of Nanosized TiO2
มหาวิทยาลัยเกษตรศาสตร์ Kornvalai Panpae;Suppalak Angkaew;Chiravadee Sritara;Chinda Ngernsuttichaiporn | บทความ/Article | |
| Synthesis and characterization of supermagnetic composite for laccase immobilization by covalent binding
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Kornvalai Panpae;Wanon Pooyoo;Jarupa Yatha | บทความ/Article | |
| Self-initiated laccase immobilization on poly(acrylonitrile)-chitosan composite for azo dye degradation
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Ornpreeya Naowakitiwate;Kasama Chantarapattamanon;Kornvalai Panpae | บทความ/Article | |
| Immobilization and characterization of white rot fungi in sol-gel silica composite for azo dye treatment
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Kornvalai Panpae;Tanapatr Saichroen;Nantikan Udomchaiporn;Praewpen Pinpipat | บทความ/Article |
Suppalak Angkaew
| Title | Contributor | Type |
|---|---|---|
| An Alkoxide Free Sol-Gel Synthesis of Nanosized TiO2
มหาวิทยาลัยเกษตรศาสตร์ Kornvalai Panpae;Suppalak Angkaew;Chiravadee Sritara;Chinda Ngernsuttichaiporn | บทความ/Article | |
| Volatile organic compounds of charcoal combustion smoke
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Winyu Chitsamphandhvej;Suvaluk Asavasanti;Boonnak Sukhummek;Suppalak Angkaew;Kannika Titawong;Patcha Saichunyoon | บทความ/Article | |
| Effect of raw meat size and storage conditions on raw meat equivalent (RME) of raw skinless boneless chicken breast
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Jukkrit Nootem;Koch Sookmaitri;Nattawan Chorhirankul;Suvaluk Asavasanti;Boonnak Sukhummek;Winyu Chitsamphandhvej;Suppalak Angkaew | บทความ/Article | |
| Differentiation of charcoal grilled chicken breast and thigh by volatile constituents
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Kannika Titawong;Patcha Saichunyoon;Nattawan Chorhirankul;Suvaluk Asavasanti;Boonnak Sukhummek;Suppalak Angkaew;Winyu Chitsamphandhvej | บทความ/Article |
Chiravadee Sritara
| Title | Contributor | Type |
|---|---|---|
| An Alkoxide Free Sol-Gel Synthesis of Nanosized TiO2
มหาวิทยาลัยเกษตรศาสตร์ Kornvalai Panpae;Suppalak Angkaew;Chiravadee Sritara;Chinda Ngernsuttichaiporn | บทความ/Article |
Chinda Ngernsuttichaiporn
| Title | Contributor | Type |
|---|---|---|
| An Alkoxide Free Sol-Gel Synthesis of Nanosized TiO2
มหาวิทยาลัยเกษตรศาสตร์ Kornvalai Panpae;Suppalak Angkaew;Chiravadee Sritara;Chinda Ngernsuttichaiporn | บทความ/Article |