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.
N1 - Funding Information:
The authors wish to thank Dr. Drakopoulos of the Foundation for Research and Technology-Hellas (FORTH) Institute of Chemical Engineering and High Temperature Chemical Processes (ICE/HT) Rio-Patras, Greece and Dr M. Kollia of the Laboratory of Electron Microscopy and Microanalysis, University of Patras. One of the authors (SK) was supported by the College of Agricultural Sciences under Station Research Project No. PEN04566 .
Publisher Copyright:
© 2018 Elsevier Ltd
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.
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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 -