Preparation, characterization and evaluation of catalytic activity of titania modified with silver and bentonite

Dinh Bang Nguyen; Thi Dieu Cam Nguyen; Thanh Phuong Dao

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Preparation, characterization and evaluation of catalytic activity of titania modified with silver and bentonite

机译：银和膨润土改性二氧化钛的制备，表征和催化活性评价

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The aim of this study is to evaluate phenol degradation capability of silver modified titanium dioxide nanomaterial on bentonite support (Ag-TiO2/Bent). The material was synthesized as photocatalyst by adding Ag-TiO2 sol into bentonite suspension. The experimental results revealed that photooxidation activity of Ag-TiO2/Bent was greatly higher than that of Ag-TiO2 and TiO2/Bent. The phenol removal efficiency was 23.25%, 35.41% and 98.94% for Ag-TiO2, TiO2/Bent and Ag-TiO2/Bent, respectively. The dispersion of silver modified TiO2 on bentonite support significantly enhances photocatalytic activity under solar radiation due to surface plasmon resonance formation and prevention of anatase-to-rutile phase transformation.

机译：这项研究的目的是评估膨润土载体（Ag-TiO2 / Bent）上的银改性二氧化钛纳米材料的苯酚降解能力。通过将Ag-TiO2溶胶添加到膨润土悬浮液中，合成了该材料作为光催化剂。实验结果表明，Ag-TiO2 / Bent的光氧化活性大大高于Ag-TiO2和TiO2 / Bent。 Ag-TiO2，TiO2 / Bent和Ag-TiO2 / Bent的苯酚去除效率分别为23.25％，35.41％和98.94％。由于表面等离振子共振的形成和防止了锐钛矿到金红石相变，银改性的TiO2在膨润土载体上的分散显着增强了太阳辐射下的光催化活性。

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《Journal of industrial and engineering chemistry》 |2012年第5期|共4页
作者
Dinh Bang Nguyen; Thi Dieu Cam Nguyen; Thanh Phuong Dao;
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正文语种 eng
中图分类化学工业;
关键词
Titanium dioxide; Silver; Bentonite; Photocatalyst; Visible light;

机译：二氧化钛;银;膨润土;光催化剂;可见光;

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1. Preparation, characterization and evaluation of catalytic activity of titania modified with silver and bentonite [J] . Dinh Bang Nguyen, Thi Dieu Cam Nguyen, Thanh Phuong Dao Journal of industrial and engineering chemistry . 2012,第5期

机译：银和膨润土改性二氧化钛的制备，表征和催化活性评价
2. Preparation of Pd (0) and Pd (II) nanotubes and nanoparticles on modified bentonite and their catalytic activity in oxidation of ethyl benzene to acetophenone [J] . M. Ghiaci, Z. Sadeghi, M.E. Sedaghat Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications . 2010,第1a2期

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3. Preparation and characterization of copper chloride supported on citric acid-modified magnetite nanoparticles (Cu2+-CA@Fe3O4) and evaluation of its catalytic activity in the reduction of nitroarene compounds [J] . Ghonchepour Ehsan, Yazdani Elahe, Saberi Dariush, Applied Organometallic Chemistry . 2017,第12期

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4. Preparation of vanadium-based catalysts for selective catalytic reduction of nitrogen oxides using titania supports chemically modified with organosilanes [C] . H. Kominami, M. Itonaga, A. Shinonaga, 8th International Symposium on Scientific Bases for the Preparation of Heterogeneous Catalysts, Sep 9-12, 2002, Louvain-la-Neuve, Belgium . 2002

机译：使用二氧化钛载体制备用于选择性催化还原氮氧化物的钒基催化剂，并用有机硅烷进行化学改性
5. Synthesis, characterization and catalytic evaluation of titania modified with tethered organic compounds. [D] . Randive, Rajul V. 1998

机译：拴系有机化合物改性的二氧化钛的合成，表征和催化评价。
6. Green synthesis characterization and catalytic activity of natural bentonite-supported copper nanoparticles for the solvent-free synthesis of 1-substituted 1H-1234-tetrazoles and reduction of 4-nitrophenol [O] . Akbar Rostami-Vartooni, Mohammad Alizadeh, Mojtaba Bagherzadeh 2015

机译：天然膨润土负载的铜纳米粒子的绿色合成表征和催化活性用于无溶剂合成1-取代的1H-1234-四唑和还原4-硝基苯酚
7. Surface Modification, Characterization and Photocatalytic Performance of Nano-Sized Titania Modified with Silver and Bentonite Clay [O] . Neetu Divya, Ajay Bansal, Asim K. Jana 2009

机译：银和膨润土改性纳米二氧化钛的表面改性，表征及光催化性能

Preparation, characterization and evaluation of catalytic activity of titania modified with silver and bentonite

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