Abstract
Two different nanoclay minerals were combined with nanophase anatase TiO2 for the synthesis of clay-based nanocomposites for improved photocatalytic properties. A new Halloysite (Hal) + Sepiolite (S) - TiO2 ternary nanocomposite was prepared using halloysite from Utah, USA and a recently discovered sepiolite from Greece. Three nanocomposites were synthesized with Hal-TiO2, S-TiO2 and [Hal+S] to TiO2. As a result, TiO2 particles (anatase) were homogeneously deposited and dispersed on the clay surfaces. Phase composition, particle morphology and physical properties of these nanocomposites were characterized by XRD, ATR-FTIR, FE-SEM, DRS-UV–Vis and N2-sorption/desorption isotherms at 77 K. The photocatalytic activity of the clay mineral-TiO2 nanocomposites was examined in the decomposition of paracetamol and tetracycline antibiotics as well as dye Rhodamine-B. The nanocomposites exhibited higher photocatalytic activity under UV irradiation for the decomposition of the targeted pollutants than the benchmark in the field, i.e. TiO2- P25 photocatalyst.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1-8 |
| Number of pages | 8 |
| Journal | Materials Science in Semiconductor Processing |
| Volume | 85 |
| DOIs | |
| State | Published - Oct 2018 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Cite this
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Halloysite and sepiolite –TiO2 nanocomposites : Synthesis characterization and photocatalytic activity in three aquatic wastes. / Papoulis, D.; Panagiotaras, D.; Tsigrou, P.; Christoforidis, K. C.; Petit, C.; Apostolopoulou, A.; Stathatos, E.; Komarneni, S.; Koukouvelas, I.
In: Materials Science in Semiconductor Processing, Vol. 85, 10.2018, p. 1-8.Research output: Contribution to journal › Article
TY - JOUR
T1 - Halloysite and sepiolite –TiO2 nanocomposites
T2 - Synthesis characterization and photocatalytic activity in three aquatic wastes
AU - Papoulis, D.
AU - Panagiotaras, D.
AU - Tsigrou, P.
AU - Christoforidis, K. C.
AU - Petit, C.
AU - Apostolopoulou, A.
AU - Stathatos, E.
AU - Komarneni, S.
AU - Koukouvelas, I.
PY - 2018/10
Y1 - 2018/10
N2 - Two different nanoclay minerals were combined with nanophase anatase TiO2 for the synthesis of clay-based nanocomposites for improved photocatalytic properties. A new Halloysite (Hal) + Sepiolite (S) - TiO2 ternary nanocomposite was prepared using halloysite from Utah, USA and a recently discovered sepiolite from Greece. Three nanocomposites were synthesized with Hal-TiO2, S-TiO2 and [Hal+S] to TiO2. As a result, TiO2 particles (anatase) were homogeneously deposited and dispersed on the clay surfaces. Phase composition, particle morphology and physical properties of these nanocomposites were characterized by XRD, ATR-FTIR, FE-SEM, DRS-UV–Vis and N2-sorption/desorption isotherms at 77 K. The photocatalytic activity of the clay mineral-TiO2 nanocomposites was examined in the decomposition of paracetamol and tetracycline antibiotics as well as dye Rhodamine-B. The nanocomposites exhibited higher photocatalytic activity under UV irradiation for the decomposition of the targeted pollutants than the benchmark in the field, i.e. TiO2- P25 photocatalyst.
AB - Two different nanoclay minerals were combined with nanophase anatase TiO2 for the synthesis of clay-based nanocomposites for improved photocatalytic properties. A new Halloysite (Hal) + Sepiolite (S) - TiO2 ternary nanocomposite was prepared using halloysite from Utah, USA and a recently discovered sepiolite from Greece. Three nanocomposites were synthesized with Hal-TiO2, S-TiO2 and [Hal+S] to TiO2. As a result, TiO2 particles (anatase) were homogeneously deposited and dispersed on the clay surfaces. Phase composition, particle morphology and physical properties of these nanocomposites were characterized by XRD, ATR-FTIR, FE-SEM, DRS-UV–Vis and N2-sorption/desorption isotherms at 77 K. The photocatalytic activity of the clay mineral-TiO2 nanocomposites was examined in the decomposition of paracetamol and tetracycline antibiotics as well as dye Rhodamine-B. The nanocomposites exhibited higher photocatalytic activity under UV irradiation for the decomposition of the targeted pollutants than the benchmark in the field, i.e. TiO2- P25 photocatalyst.
UR - http://www.scopus.com/inward/record.url?scp=85047565331&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85047565331&partnerID=8YFLogxK
U2 - 10.1016/j.mssp.2018.05.025
DO - 10.1016/j.mssp.2018.05.025
M3 - Article
AN - SCOPUS:85047565331
VL - 85
SP - 1
EP - 8
JO - Materials Science in Semiconductor Processing
JF - Materials Science in Semiconductor Processing
SN - 1369-8001
ER -