Abstract
A fast and reliable synthetic route for preparing contaminant-free porous TiO2 with a wormhole-like framework and close packed macropores is demonstrated based on a sol-gel process involving acid hydrolysis of an alkoxide in the presence of a cationic surfactant. Powder X-ray diffraction (XRD) and transmission electron microscopy (TEM) measurements have been used to characterize the porous structure and the crystallinity. The XRD patterns, TEM and scanning electron microscopy (SEM) images confirm that these materials have disordered wormhole-like topology with close-packed nearly hexagonal macropores. The mesopore diameters and surface area of titanium dioxide, evaluated from the N2-sorption isotherms, indicate average pore diameters of about 7 and 6 nm and surface areas of about 100 and 335 m2/g, for as-prepared and calcined samples at 400°C.
| Original language | English |
|---|---|
| Pages (from-to) | 21-27 |
| Number of pages | 7 |
| Journal | Journal of Porous Materials |
| Volume | 15 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Feb 2008 |
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Keywords
- Acid hydrolysis
- Macropores
- Mesoporous
- TEM
- Titanium dioxide
- XRD
ASJC Scopus subject areas
- Chemistry (miscellaneous)
- Physical and Theoretical Chemistry
- Materials Science(all)
- Catalysis
Cite this
Synthesis and characterization of porous TiO2 with wormhole-like framework structure. / Narayanaswamy, Arun; McBride, James; Swafford, Laura A.; Dhar, Sarit; Budai, John D.; Feldman, Leonard C; Rosenthal, Sandra J.
In: Journal of Porous Materials, Vol. 15, No. 1, 02.2008, p. 21-27.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Synthesis and characterization of porous TiO2 with wormhole-like framework structure
AU - Narayanaswamy, Arun
AU - McBride, James
AU - Swafford, Laura A.
AU - Dhar, Sarit
AU - Budai, John D.
AU - Feldman, Leonard C
AU - Rosenthal, Sandra J.
PY - 2008/2
Y1 - 2008/2
N2 - A fast and reliable synthetic route for preparing contaminant-free porous TiO2 with a wormhole-like framework and close packed macropores is demonstrated based on a sol-gel process involving acid hydrolysis of an alkoxide in the presence of a cationic surfactant. Powder X-ray diffraction (XRD) and transmission electron microscopy (TEM) measurements have been used to characterize the porous structure and the crystallinity. The XRD patterns, TEM and scanning electron microscopy (SEM) images confirm that these materials have disordered wormhole-like topology with close-packed nearly hexagonal macropores. The mesopore diameters and surface area of titanium dioxide, evaluated from the N2-sorption isotherms, indicate average pore diameters of about 7 and 6 nm and surface areas of about 100 and 335 m2/g, for as-prepared and calcined samples at 400°C.
AB - A fast and reliable synthetic route for preparing contaminant-free porous TiO2 with a wormhole-like framework and close packed macropores is demonstrated based on a sol-gel process involving acid hydrolysis of an alkoxide in the presence of a cationic surfactant. Powder X-ray diffraction (XRD) and transmission electron microscopy (TEM) measurements have been used to characterize the porous structure and the crystallinity. The XRD patterns, TEM and scanning electron microscopy (SEM) images confirm that these materials have disordered wormhole-like topology with close-packed nearly hexagonal macropores. The mesopore diameters and surface area of titanium dioxide, evaluated from the N2-sorption isotherms, indicate average pore diameters of about 7 and 6 nm and surface areas of about 100 and 335 m2/g, for as-prepared and calcined samples at 400°C.
KW - Acid hydrolysis
KW - Macropores
KW - Mesoporous
KW - TEM
KW - Titanium dioxide
KW - XRD
UR - http://www.scopus.com/inward/record.url?scp=37249078732&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=37249078732&partnerID=8YFLogxK
U2 - 10.1007/s10934-006-9047-5
DO - 10.1007/s10934-006-9047-5
M3 - Article
VL - 15
SP - 21
EP - 27
JO - Journal of Porous Materials
JF - Journal of Porous Materials
SN - 1380-2224
IS - 1
ER -