2D-Titanium dioxide nanosheets modified with Nd, Ag and Au: Preparation, characterization and photocatalytic activity

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• 作者：Eva Pližingrov&aacute ; ^a ; ^b ; ^{plizingrova@iic.cas.cz} ; Mariana Klementov&aacute ; ^a ; Petr Bezdička^a ; Jaroslav Boh&aacute ; ček^a ; Zuzana Barbierikov&aacute ; ^c ; Dana Dvoranov&aacute ; ^c ; Milan Maz&uacute ; r^c ; Josef Kr&yacute ; sa^b ; Jan &Scaron ; ubrt^a ; Vlasta Brezov&aacute ; ^c ; ^{vlasta.brezova@stuba.sk}
• 关键词：Modified titanium dioxide ; Photocatalysis ; Plasmonic effect ; EPR spectroscopy ; Lyophilization ; Spin trapping
• 刊名：Catalysis Today
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：281
• 期：part_P1
• 页码：165-180
• 全文大小：4291 K
• 卷排序：281

文摘

Nd-, Au- and Ag-modified 2D-TiO2 were synthesized by lyophilization and annealing. TiO2 nanosheets reveal foiled morphology (lateral size ∼100 μm, thickness ∼20 nm). Anatase nanocrystals dominate in 2D-TiO2 nanosheets annealed at 500, 650 or 800 °C. Nd is built into anatase structure, Au and Ag form nanoparticles on TiO2 surface. Modified 2D-TiO2 show lower UV-activity and minimal visible-light activity.