以钛酸四丁酯和HF为原料,通过水热法合成了含(001)高能面的TiO2纳米片.光还原沉积法进行载铂,浸渍法使伊红Y(Eosin Y)负载在Pt-TiO2表面,制得系列染料敏化的Eosin Y-Pt-TiO2可见光光催化剂.所制备的催化剂通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射(XRD)、紫外-可见漫反射(UV-Vis DRS)、比表面(BET)、荧光光谱(PL)和傅立叶红外光谱(FT-IR)等手段进行表征.实验表明,当Eosin Y浓度一定时,HF用量和载Pt量对催化剂的制氢活性有显著影响.当HF用量为3 mL时,Eosin Y敏化Pt负载(001)晶面占优TiO2纳米片的可见光制氢活性是纯TiO2纳米颗粒的2.1倍,这可能与TiO2(001)面含量高和表面氟化有关;同时,当载Pt量仅为0.02％(质量分数)时,该催化剂也显示了相当高的可见光制氢活性.
参考文献
| [1] | Sauer ML.;Ollis DF..PHOTOCATALYZED OXIDATION OF ETHANOL AND ACETALDEHYDE IN HUMIDIFIED AIR[J].Journal of Catalysis,19962(2):570-582. |
| [2] | 陈小明;李越湘;彭绍琴.CdxZn1-xS敏化TiO2纳米管阵列电极光电化学制氢[J].功能材料,2014(3):03061-03065. |
| [3] | Yuexiang Li;Yuan Jiang;Shaoqin Peng;Fengyi Jiang.Nitrogen-doped TiO_2 modified with NH_4F for efficient photocatalytic degradation of formaldehyde under blue light-emitting diodes[J].Journal of hazardous materials,20101/3(1/3):90-96. |
| [4] | Amy L. Linsebigler;Guangquan Lu;John T. Yates Jr..Photocatalysis on TiO_2 Surfaces: Principles, Mechanisms, and Selected Results[J].Chemical Reviews,19953(3):735-758. |
| [5] | K. B. Dhanalakshmi;S. Latha;S. Anandan.Dye sensitized hydrogen evolution from water[J].International journal of hydrogen energy,20017(7):669-674. |
| [6] | Wenquan Cui;Liangrong Feng;Chenghua Xu;Shaojie Lu;Fali Qiu.Hydrogen production by photocatalytic decomposition of methanol gas on Pt/TiO_2 nano-film[J].Catalysis Communications,20049(9):533-536. |
| [7] | Ding, Dawei;Liu, Kai;He, Shengnan;Gao, Chuanbo;Yin, Yadong.Ligand-Exchange Assisted Formation of Au/TiO2 Schottky Contact for Visible-Light Photocatalysis[J].Nano letters,201411(11):6731-6736. |
| [8] | Liu, S.;Yu, J.;Jaroniec, M..Tunable photocatalytic selectivity of hollow TiO_2 microspheres composed of anatase polyhedra with exposed {001} facets[J].Journal of the American Chemical Society,201034(34):11914-11916. |
| [9] | Yang, HG;Liu, G;Qiao, SZ;Sun, CH;Jin, YG;Smith, SC;Zou, J;Cheng, HM;Lu, GQ.Solvothermal Synthesis and Photoreactivity of Anatase TiO2 Nanosheets with Dominant {001} Facets[J].Journal of the American Chemical Society,200911(11):4078-4083. |
| [10] | Yuexiang Li;Chengfu Xie;Shaoqin Peng.Eosin Y-sensitized nitrogen-doped TiO2 for efficient visible light photocatalytic hydrogen evolution[J].Journal of molecular catalysis, A. Chemical,20081/2(1/2):117-123. |
| [11] | Formation of multilayer-Eosin Y-sensitized TiO_2 via Fe~(3+) coupling for efficient visible-light photocatalytic hydrogen evolution[J].International journal of hydrogen energy,200914(14):5629. |
| [12] | Li QY;Jin ZL;Peng ZG;Li YX;Li SB;Lu GX.High-efficient photocatalytic hydrogen evolution on eosin Y-sensitized Ti-MCM41 zeolite under visible-light irradiation[J].The journal of physical chemistry, C. Nanomaterials and interfaces,200723(23):8237-8241. |
| [13] | Junying Xu;Yuexiang Li;Shaoqin Peng.Eosin Y-sensitized graphitic carbon nitride fabricated by heating urea for visible light photocatalytic hydrogen evolution: the effect of the pyrolysis temperature of urea[J].Physical chemistry chemical physics: PCCP,201320(20):7657-7665. |
| [14] | Liu, Xing;Li, Yuexiang;Peng, Shaoqin;Lu, Gongxuan;Li, Shuben.Photosensitization of SiW11O398--modified TiO2 by Eosin Y for stable visible-light H-2 generation[J].International journal of hydrogen energy,201327(27):11709-11719. |
| [15] | Qiuye Li;Liang Chen;Gongxuan Lu.Visible-Light-Induced Photocatalytic Hydrogen Generation on Dye-Sensitized Multiwalled Carbon Nanotube/Pt Catalyst[J].The journal of physical chemistry, C. Nanomaterials and interfaces,200730(30):11494-11499. |
| [16] | 李越湘;吕功煊;李树本.以草酸为电子给体在Pt-TiO2上光催化生成氢[J].催化学报,2001(2):212-214. |
| [17] | Hua Gui Yang;Cheng Hua Sun;Shi Zhang Qiao;Jin Zou;Gang Liu;Sean Campbell Smith;Hui Ming Cheng;Gao Qing Lu.Anatase TiO2 single crystals with a large percentage of reactive facets[J].Nature,20087195(7195):638-641. |
| [18] | Han, XG;Kuang, Q;Jin, MS;Xie, ZX;Zheng, LS.Synthesis of Titania Nanosheets with a High Percentage of Exposed (001) Facets and Related Photocatalytic Properties[J].Journal of the American Chemical Society,20099(9):3152-3153. |
| [19] | Jiaguo Yu;Lifang Qi;Mietek Jaroniec.Hydrogen Production by Photocatalytic Water Splitting over Pt/TiO2 Nanosheets with Exposed (001) Facets[J].The journal of physical chemistry, C. Nanomaterials and interfaces,201030(30):13118-13125. |
| [20] | Liu, G;Yang, HG;Wang, XW;Cheng, LN;Pan, J;Lu, GQ;Cheng, HM.Visible Light Responsive Nitrogen Doped Anatase TiO2 Sheets with Dominant {001} Facets Derived from TiN[J].Journal of the American Chemical Society,200936(36):12868-12869. |
| [21] | Quanjun Xiang;Kangle Lv;Jiaguo Yu.Pivotal role of fluorine in enhanced photocatalytic activity of anatase TiO2 nanosheets with dominant (001) facets for the photocatalytic degradation of acetone in air[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,20103/4(3/4):557-564. |
| [22] | Zhouyou Wang;Kangle Lv;Guanghui Wang.Study on the shape control and photocatalytic activity of high-energy anatase titania[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,20101/2(1/2):378-385. |
| [23] | Jiaguo Yu;Wenguang Wang;Bei Cheng.Enhancement of Photocatalytic Activity of Mesporous TiO2 Powders by Hydrothermal Surface Fluorination Treatment[J].The journal of physical chemistry, C. Nanomaterials and interfaces,200916(16):6743-6750. |
| [24] | Di Valentin, C;Finazzi, E;Pacchioni, G;Selloni, A;Livraghi, S;Paganini, MC;Giamello, E.N-doped TiO2: Theory and experiment[J].Chemical Physics,20071-3(1-3):28-35. |
| [25] | Serge Pelet;Michael Gratzel;Jacques-E. Moser.Femtosecond Dynamics of Interfacial and Intermolecular Electron Transfer at Eosin-Sensitized Metal Oxide Nanoparticles[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,200314(14):3215-3224. |
| [26] | Taketo Taguchi;Yui Saito;Koji Sarukawa;Teruhisa Ohno;Michio Matsumura.Formation of new crystal faces on TiO_2 particles by treatument with aqueous HF solution or hot sulfuric acid[J].New Journal of Chemistry,20039(9):1304-1306. |
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