Low Temperature Synthesis of Photocatalytic Mesoporous TiO2Nanomaterials

被引：21

作者：

Dell'Edera, Massimo ^{[1
,2
]}

Petronella, Francesca ^{[1
,7
]}

Truppi, Alessandra ^{[1
,8
]}

Liotta, Leonarda Francesca ^{[3
]}

Galli, Nunzio ^{[3
]}

Sibillano, Teresa ^{[4
]}

Giannini, Cinzia ^{[4
]}

Brescia, Rosaria ^{[5
]}

Milano, Francesco ^{[6
]}

Striccoli, Marinella ^{[1
]}

Agostiano, Angela ^{[1
,2
]}

Curri, Maria Lucia ^{[1
,2
]}

Comparelli, Roberto ^{[1
]}

机构：

[1] Ist Proc Chimicofis, SS Bari, CNR IPCF, Dip Chim, Via Orabona 4, I-70126 Bari, Italy

[2] Univ Bari Aldo Moro, Dip Chim, Via Orabona 4, I-70126 Bari, Italy

[3] Ist Studio Mat Nanostrutturati ISMN CNR, Via Ugo La Malfa 153, I-90146 Palermo, Italy

[4] CNR IC, Ist Cristallog, Via Amendola 122-O, I-70126 Bari, Italy

[5] Ist Italiano Tecnol IIT, Electron Microscopy Facil, Via Morego 30, I-16163 Genoa, Italy

[6] CNR, SP Lecce Monteroni, CNR ISPA Ist Sci Prod Alimentari, I-73100 Lecce, Italy

[7] CNR IC, Ist Cristallog, SS Roma, Via Salaria Km 29,300, I-00015 Monterotondo, Italy

[8] TCT Srl, TCT Nanotech Div, Str Pandi 3, I-72100 Brindisi, Italy

来源：

CATALYSTS | 2020年 / 10卷 / 08期

关键词：

titanium dioxide; photocatalysis; nanoparticles; mesoporous; TITANIUM-DIOXIDE NANOMATERIALS; SIZE DISTRIBUTION; WATER-TREATMENT; SOL-GEL; TIO2; BROOKITE; ANATASE; DEGRADATION; RUTILE; TRANSFORMATION;

D O I：

10.3390/catal10080893

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report the synthesis of mesoporous TiO(2)nanostructures based on the decomposition of TiOSO(4)in aqueous alkaline solution at room temperature, followed by mild thermal treatment (110 degrees C) in an oven and suitable to yield up to 40 g of product per batch. The duration of the thermal treatment was found to be crucial to control crystalline phase composition, specific surface area, surface chemistry and, accordingly, the photocatalytic properties of the obtained TiO(2)nanocrystals. The thorough investigation of the prepared samples allowed us to explain the relationship between the structure of the obtained nanoparticles and their photocatalytic behavior, that was tested in a model reaction. In addition, the advantage of the mild treatment against a harsher calcination at 450 degrees C was illustrated. The proposed approach represents a facile and sustainable route to promptly access an effective photocatalyst, thus holding a significant promise for the development of solutions suitable to real technological application in environmental depollution.

引用

页码：1 / 18

页数：18

共 49 条

[1] The effect of crystalline phase (anatase, brookite and rutile) and size on the photocatalytic activity of calcined polymorphic titanium dioxide (TiO2) [J].