1. 毕业设计（论文）的内容和要求

研究内容： 主要为通过一步水热法合成过渡金属钒和氮共掺杂的二氧化钛（v-n-tio2），初步研究v以及n的共掺杂作用对tio2结构以及性能的影响。

同时考察元素的掺入量、煅烧温度等合成条件对 v-n-tio2纳米材料的结构的影响（如颗粒尺寸，结晶度等），同时考察这些因素对催化性能的影响。

要求： 需要本科生对tio2的改性方法有一个比较系统的认识，同时能独立的完成实验。

2. 参考文献

[1] Jaiswal R, Patel N, Kothari D C, et al. Improved visible light photocatalytic activity of TiO2 co-doped with Vanadium and Nitrogen [J]. Applied Catalysis B: Environmental, 2012, 126(47-54. [2] Gong J, Yang C, Zhang J, et al. Origin of Photocatalytic Activity of W/N-codoped TiO2: H2 Production and DFT Calculation with GGA Plus U [J]. Applied Catalysis B-Environmental, 2014, 152(73-81. [3] Fang Y, Cheng D, Wu W. Understanding Electronic and Optical Properties of N-Sn Codoped Anatase TiO2 [J]. Computational Materials Science, 2014, 85(264-268. [4] Du F, Yu S. Preparation and Characterization of Zr-N-Codoped TiO2 Nano-Photocatalyst and Its Activity Enhanced-Mechanism [J]. Journal of Nanoscience and Nanotechnology, 2014, 14(9): 6965-6969. [5] Wu Y, Liu H, Zhang J, et al. Enhanced Photocatalytic Activity of Nitrogen-Doped Titania by Deposited with Gold [J]. The Journal of Physical Chemistry C, 2009, 113(33): 14689-14695. [6] Cong Y, Zhang J, Chen F, et al. Preparation, Photocatalytic Activity, and Mechanism of Nano-TiO2 Co-Doped with Nitrogen and Iron (III) [J]. The Journal of Physical Chemistry C, 2007, 111(28): 10618-10623. [7] Zhang J, Zhou P, Liu J, et al. New Understanding of the Difference of Photocatalytic Activity among Anatase, Rutile and Brookite TiO2 [J]. Physical Chemistry Chemical Physics, 2014, 16(38): 20382-20386. [8] Jiang X, Herricks T, Xia Y. Monodispersed spherical colloids of titania: Synthesis, characterization, and crystallization [J]. Advanced Materials, 2003, 15(14): 1205-1209. [9] Li J-G, Ishigaki T. Brookite→ rutile phase transformation of TiO _{2 studied with monodispersed particles [J]. Acta materialia, 2004, 52(17): 5143-5150. [10] Zhang H, Banfield J F. Understanding Polymorphic Phase Transformation Behavior during Growth of Nanocrystalline Aggregates: Insights from TiO2 [J]. J Phys Chem B, 2000, 104(15): 3481-3487. [11] Liu J, Han R, Zhao Y, et al. Enhanced Photoactivity of V#8722;N Codoped TiO2: Derived from a Two-Step Hydrothermal Procedure for the Degradation of PCP#8722;Na under Visible Light Irradiation [J]. The Journal of Physical Chemistry C, 2011, 115(11): 4507-4515. [12] Liu K-I, Hsueh Y-C, Chen H-S, et al. Mesoporous TiO2/WO3 Hollow Fibers with Interior Interconnected Nanotubes for Photocatalytic Application [J]. Journal of Materials Chemistry A, 2014, 2(15): 5387-5393. [13] Zhao Z, Tan H, Zhao H, et al. Reduced TiO2 Rutile Nanorods with Well-defined Facets and Their Visible-light Photocatalytic Activity [J]. Chemical Communications, 2014, 50(21): 2755-2757. [14] Ong W-J, Tan L-L, Chai S-P, et al. Highly Reactive {001} Facets of TiO2-based Composites: Synthesis, Formation Mechanism and Characterization [J]. Nanoscale, 2014, 6(4): 1946-2008. [15] Luan Y, Jing L, Wu J, et al. Long-lived Photogenerated Charge Carriers of 001-facet-exposed TiO2 with Enhanced Thermal Stability as an Efficient Photocatalyst [J]. Applied Catalysis B: Environmental, 2014, 147(29-34. [16] Xu H, Reunchan P, Ouyang S, et al. Anatase TiO2 Single Crystals Exposed with High-Reactive {111} Facets Toward Efficient H2 Evolution [J]. Chemistry of Materials, 2013, 25(3): 405-411.}

3. 毕业设计（论文）进程安排

2016-02-24#8212;03-10 查阅国内外有关文献，拟订实验方案。

2016-03-10#8212;03-20 翻译外文文献，并撰写文献综述。

2016-03-20#8212;04-10 按照拟定的实验方案依次进行实验。