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Au - TiO2 ID PHOTO-CATALYSTS BASED ON GOLD - TITANIA COMPOSITES Table 1. Morpho-structural particularities and photo-catalytic behavior of the studied Au-TiO2 composites VAu coll. sol. (ml) [Au] (% mol) SBET (m 2 /g) Vpore [OH]surf (cm 3 /g) (mmol/g) kads x 10 3 (min -1 ) kphoto x 10 3 (min -1 ) B1 Au 150 0.395 477 0.86 0.56 0.23 10.9 63 B2 Au 75 0.397 450 0.44 0.61 0.24 11 59 B3 Au 40 0.373 332 0.38 0.52 0.12 10.6 52 B4 Au 25 0.131 337 0.95 0.57 0.04 8.1 50 TiO2 - - 340 1.08 0.6 0.09 10.1 60 Au content [% mol] 0.40 0.35 0.30 0.25 0.20 0.15 0.10 20 40 60 80 100 120 140 160 Au colloid volume [ml] Figure 1. Depen<strong>de</strong>nce of Au content on the Au colloid volume used inTiO2 gel impregnation The specific surface area BET of the obtained composites increases with Au content (Table 1). These effects have been previously reported for gold supported on MCM-41 and MCM-48 zeolites [16] and for gold supported on alumina and ceria [17], and are explained through the expansion of the porous structure of the support due to of the introduction of gold nanoparticles [18]. X (%) 163
164 (a) V relative [%] (c) V relative [%] (e) V relative [%] 20 15 10 5 0 20 15 10 5 0 50 40 30 20 10 0 A. PETER, M. BAIA, F. TODERAS, M. LAZAR, L. B. TUDORAN, V. DANCIU B 1 Au composite 20 40 60 80 Pore size [angstrom] 20 40 60 80 Pore size [angstrom] B 3 Au composite 20 40 60 80 Pore size [angstrom] TiO 2 (b) V relative [%] (d) V relative [%] 35 30 25 20 15 10 5 0 30 25 20 15 10 5 0 B 2 Au composite 20 40 60 80 Pore size [angstrom] 20 40 60 Pore size [angstrom] B 4 Au composite Figure 2A. Influence of the Au loading on the composites pore structure.
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R /(mol m -2 s -1 ) 0.06 0.05 0.04
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ANA-MARIA CORMOS, JOZSEF GASPAR, AN
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Studia Universitatis Babes-Bolyai C
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6 PROFESSOR IOAN BÂLDEA AT HIS 70
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MARCELA ACHIM, DANA MUNTEAN, LAURIA
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STUDIA UNIVERSITATIS BABEŞ-BOLYAI,
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STUDIES ON WO3 THIN FILMS PREPARED
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PREPARATION AND CHARACTERIZATION OF
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32 C. CĂŢĂNAŞ, M. MOGOŞ, D. HO
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34 C. CĂŢĂNAŞ, M. MOGOŞ, D. HO
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C. CĂŢĂNAŞ, M. MOGOŞ, D. HORVA
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38 ANA-MARIA CORMOS, JOZSEF GASPAR,
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ANA-MARIA CORMOS, JOZSEF GASPAR, AN
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50 EUGEN DARVASI, LADISLAU KÉKEDY-
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MATHEMATICAL MODELING FOR THE CRYST
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STUDY OF THE CHROMATOGRAPHIC RETENT
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LOWER RIM SILYL SUBSTITUTED CALIX[8
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THE INTERACTION OF SILVER NANOPARTI
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OPTIMISATION OF COPPER REMOVAL FROM
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MELINDA-HAYDEE KOVACS, DUMITRU RIST
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Page 115 and 116: IRON DOPED CARBON AEROGEL AS CATALY
Page 123 and 124: 128 ANDRADA MĂICĂNEANU, HOREA BED
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Page 137 and 138: CRISTINA MIHALI, GABRIELA OPREA, EL
Page 139 and 140: 144 CRISTINA MIHALI, GABRIELA OPREA
Page 141 and 142: 146 Interfering ion, J - I - DBS -
Page 143 and 144: CONCLUSIONS 148 CRISTINA MIHALI, GA
Page 145 and 146: 150 CRISTINA MIHALI, GABRIELA OPREA
Page 147 and 148: 152 D. MIHU, L. VLASE, S. IMRE, C.
Page 149 and 150: 154 Intens. x105 1.5 1.0 0.5 0.0 x1
Page 151 and 152: D. MIHU, L. VLASE, S. IMRE, C. M. M
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Page 169 and 170: BIOSORPTION OF PHENOL FROM AQUEOUS
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Page 187 and 188: 194 OCTAVIAN STAICU, VALENTIN MUNTE
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Page 203 and 204: EXPERIMENTAL SECTION 210 MARIA ŞTE
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EQUILIBRIUM STUDY ON ADSORPTION PRO
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STRATEGIES OF HEAVY METAL UPTAKE BY
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CORROSION INHIBITION OF BRONZE BY A
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E / mV vs. SCE POTASSIUM-SELECTIVE
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POTASSIUM-SELECTIVE ELECTRODE BASED
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POTASSIUM-SELECTIVE ELECTRODE BASED
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256 CODRUTA VARODI, DELIA GLIGOR, L
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CODRUTA VARODI, DELIA GLIGOR, LEVEN
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PHARMACOKINETIC INTERACTION BETWEEN
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