为了提高TiO2的光催化性能,采用溶胶凝胶法制备了N和稀土Pr共掺杂TiO2光催化剂.用XRD、SEM和紫外-可见光分度计对样品进行表征,并考察了掺杂量、煅烧温度和晶型对TiO2光催化性能的影响.研究发现N-Pr混合改性的TiO2的催化活性均高于未改性的,5％的N和0.5％的Pr混合掺杂并经500℃锻烧后,样品为单一的锐钛矿相且粒径分布较窄,在模拟灯光照射下表现出较高的光催化活性和降解甲基橙溶液的能力,在80 min内使甲基橙溶液的降解率达到了99％.
参考文献
| [1] | A. T. Hodgson;H. Destaillats;D. P. Sullivan;W. J. Fisk.Performance of ultraviolet photocatalytic oxidation for indoor air cleaning applications[J].Indoor air,20074(4):305-316. |
| [2] | Zoltan Ambrus;Nandor Balazs;Tunde Alapi.Synthesis, structure and photocatalytic properties of Fe(III)-doped TiO2 prepared from TiCl3[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,20081/2(1/2):27-37. |
| [3] | Xiaobo Chen;Samuel S. Mao.Titanium Dioxide Nanomaterials: Synthesis, Properties, Modifications, and Applications[J].Chemical Reviews,20077(7):2891-2959. |
| [4] | Qinghong Zhang;Wugang Fan;Lian Gao.Anatase TiO2 nanoparticles immobilized on ZnO tetrapods as a highly efficient and easily recyclable photocatalyst[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,20071/2(1/2):168-173. |
| [5] | 肖逸帆;柳松;向德成;王晔.掺碳二氧化钛光催化的研究进展[J].硅酸盐通报,2011(2):348-355,366. |
| [6] | 于小迪;王洪波;刘麒;崔娅琴.二氧化钛光催化消毒技术在水处理中的研究[J].环境科学与管理,2013(1):81-86. |
| [7] | Sun B;Reddy EP;Smirniotis PG.Effect of the Cr6+ concentration in Cr-incorporated TiO2-loaded MCM-41 catalysts for visible light photocatalysis[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,20052(2):139-149. |
| [8] | Hyung-Joo Choi;Misook Kang.Hydrogen production from methanol/water decomposition in a liquid photosystem using the anatase structure of Cu loaded TiO_2[J].International journal of hydrogen energy,200716(16):3841-3848. |
| [9] | Sunlight photocatalytic activity of CdS modified TiO_2 loaded on activated carbon fibers[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,201011(11):3493. |
| [10] | Hiromi Yamashita;Hiroyuki Nose;Yasutaka Kuwahara.TiO2 photocatalyst loaded on hydrophobic Si3N4 support for efficient degradation of organics diluted in water[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,20082(2):164-168. |
| [11] | 徐世华;沈风雷.La掺杂对TiO2光催化剂的影响[J].稀土,2010(6):89-92. |
| [12] | Xiaotong Zhang;Guowei Zhou;Huayong Zhang.Characterization and activity of visible light-driven TiO2 photocatalysts co-doped with nitrogen and lanthanum[J].Transition Metal Chemistry,20112(2):217-222. |
| [13] | 姜洪泉;王鹏;陈红艳;于凯.Pr3+掺杂的TiO2纳米粉体的表面特性和光催化活性[J].感光科学与光化学,2006(4):276-285. |
| [14] | 袁昌来;董发勤.银镨复合掺杂二氧化钛纳米材料的光催化活性[J].硅酸盐学报,2007(6):736-740. |
| [15] | 匡继董;林碧洲;陈亦琳;骈雪涛;张克智;张鸥.水热沉淀法制备掺铁二氧化钛中空球及其光催化性能[J].催化学报,2010(11):1399-1404. |
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%