Photocatalytic properties of TiO2@polymer and TiO2@carbon aerogel composites prepared by atomic layer deposition

被引：59

作者：

Justh, Nora ^{[1
]}

Mikula, Gergo Janos ^{[1
]}

Bakos, Laszlo Peter ^{[1
]}

Nagy, Balazs ^{[2
]}

Laszlo, Krisztina ^{[2
]}

Parditka, Bence ^{[3
]}

Erdelyi, Zoltan ^{[3
]}

Takats, Viktor ^{[4
]}

Mizsei, Janos ^{[5
]}

Szilagyi, Imre Miklos ^{[1
]}

机构：

[1] Budapest Univ Technol & Econ, Dept Inorgan & Analyt Chem, Szt Gellert Ter 4, H-1111 Budapest, Hungary

[2] Budapest Univ Technol & Econ, Dept Phys Chem & Mat Sci, POB 92, H-1521 Budapest, Hungary

[3] Univ Debrecen, Fac Sci & Technol, Dept Solid State Phys, POB 400, H-4002 Debrecen, Hungary

[4] Hungarian Acad Sci Atomki, Inst Nucl Res, Debrecen, Hungary

[5] Budapest Univ Technol & Econ, Dept Electron Devices, H-1521 Budapest, Hungary

来源：

CARBON | 2019年 / 147卷

关键词：

Resorcinol-formaldehyde polymer aerogel; Carbon aerogel; Photocatalysis; ALD; TiO2; ACTIVATED CARBONS; NANOMATERIALS; RESORCINOL; XEROGELS; ENERGY;

D O I：

10.1016/j.carbon.2019.02.076

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：

Monolithic structured TiO2/aerogel composites were prepared from resorcinol-formaldehyde polymer aerogel (RFA) and its carbon aerogel (RFCA) derivative. A resorcinol-formaldehyde hydrogel was synthesized in a sol-gel reaction and transformed into polymer aerogel by supercritical drying. The RFA was converted to carbon aerogel by pyrolysis at 900 degrees C in dry N-2. Amorphous and crystalline TiO2 layers were grown from TiCl4 and H2O precursors by atomic layer deposition (ALD) at 80 degrees C and 250 degrees C, respectively, on both RFA and RFCA. The substrates and the composites were studied by N-2 adsorption, TG/DTA-MS, Raman, SEM-EDX and TEM techniques. Their photocatalytic activity was compared in the UV catalyzed decomposition reaction of methyl orange dye. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：476 / 482

页数：7

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