如何制备高效、廉价的半导体光催化剂以实现其在清洁能源和环境修复等领域的应用一直是研究的难点和热点.本文用简单的脱合金腐蚀法,将钛铋合金在硝酸中腐蚀,然后适当热氧化,制备Ti-Bi基光催化材料.通过控制腐蚀时间调控合金中铋的残余,并选择不同的热处理温度控制材料结晶的形貌和晶型,最终制备出了α-Bi<,2>O<,3>,TiO<,2>/α-Bi<,2>O<,3>、TiO<,2>和钛酸铋(Bj<,12>TiO<,20>/Bi<,4>Ti<,3>O<,12>)系列纳晶光催化剂.进一步的光催化研究表明,其中的TiO<,2>/α-Bi<,2>0<,3>、TiO<,2>和钛酸铋在紫外光下对甲基橙有较好的光催化活性.
参考文献
| [1] | Amy L. Linsebigler;Guangquan Lu;John T. Yates Jr. .Photocatalysis on TiO_2 Surfaces: Principles, Mechanisms, and Selected Results[J].Chemical Reviews,1995(3):735-758. |
| [2] | Valden M;Lai X;Goodman D W .Onset of catalytic activity of gold dusters on titania with theappearance of nonmetallic properties[J].Science,1998,281:1647-1650. |
| [3] | Prashant V. Kamat .Meeting the Clean Energy Demand: Nanostructure Architectures for Solar Energy Conversion[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2007(7):2834-2860. |
| [4] | Mor GK;Varghese OK;Paulose M;Shankar K;Grimes CA .A review on highly ordered, vertically oriented TiO2 nanotube arrays: Fabrication, material properties, and solar energy applications[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,2006(14):2011-2075. |
| [5] | Li, HY;Wang, DJ;Wang, P;Fan, HM;Xie, TF .Synthesis and Studies of the Visible-Light Photocatalytic Properties of Near-Monodisperse Bi-Doped TiO2 Nanospheres[J].Chemistry: A European journal,2009(45):12521-12527. |
| [6] | 曹广秀,李耀刚,张青红,王宏志.氟、硼共掺杂对纳米TiO_2能带结构与可见光光催化性能的影响[J].硅酸盐通报,2010(01):198-203. |
| [7] | Kraeutler B;Bard A J .Heterogeneous photocatalytic preparation of supported catalysts photodeposition of platinum on titanium dioxide powder and other substrates[J].Journal of the American Chemical Society,1978,100(13):4317-4318. |
| [8] | Jing L Q;Wang J;Qu Y C et al.Effects of surfaee-modification with Bi《,2》O《,3》 on the thermal stability and photoindueed charge property of nanecrystalline anatase TiO《,2》 and its enhanced photocatalytic activity[J].Applied Surface Scienee,2009,256:657-663. |
| [9] | Zhu X Q;Zhang J L;Chen F .Hydrotherrmal synthesis of nanestruetures Bi《,12》TiO《,20》 and their photocatalytic activity on acid orange under visible light[J].Chemosphere,2010,78:1350-1355. |
| [10] | Hongjie Zhang;Gang Chen;Xin Li .Synthesis and visible light photocatalysis water splitting property of chromium-doped Bi4Ti3O12[J].Solid state ionics,2009(36/39):1599-1603. |
| [11] | Erlebacher J;Aziz MJ;Karma A;Dimitrov N;Sieradzki K .Evolution of nanoporosity in dealloying[J].Nature,2001(6827):450-453. |
| [12] | Xu C X;Su J X;Xu X H et al.Low temperature CO oxidation over unsupported nanoporons gold[J].Journal of the American Chemical Society,2007,129:42-43. |
| [13] | 刘燕,印会鸣,吴艳凤,周爱秋,许效红.多孔β-Bi2O3的制备及光催化性能研究[J].硅酸盐通报,2010(04):751-756. |
| [14] | Hameed A;Montini T;Gombac V;Fornasiero P .Surface phases and photocatalytic activity correlation of Bi2O3/Bi2O4-x nanocomposite[J].Journal of the American Chemical Society,2008(30):9658-9659. |
| [15] | Jingjing Xu;Yanhui Ao;Degang Fu;Chunwei Yuan .Synthesis Of Bi_2o_3-tio_2 Composite Film With High-photocatalytic Activity Under Sunlight Irradiation[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2008(5P1):2365-2369. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%