采用溶胶-凝胶法制备了镍离子掺杂的二氧化钛光催化材料，利用靛蓝胭脂红染料溶液为目标污染物在可见光下将其光催化降解，研究了不同Ni掺杂TiO2催化剂的光催化活性。重点研究了不同镍掺杂浓度和煅烧温度，表面状态等对镍掺杂二氧化钛催化剂的影响，其中镍的掺杂浓度为1%，经过400℃煅烧的催化剂的效果最好，在可见光下40 min就可以将10 mg/L的靛蓝胭脂红溶液降解完。
In this work,a series of Ni/TiO2 catalysts were prepared by modified sol-gel method. And we make use of indigo carmine as the model reaction in aqueous solution under visible light to study the photocatalytic ac-tivities of Ni doped TiO2 sample with different structure. The doping amounts,calcinations temperature,and sur-face state were investigated. The 1%-Ni-doped TiO2 calcined at 400℃ has the best photocatalic ability. An indi-go carmine solution of 10 mg/L was completely photodegraded in 40 min in the presence of such photocatalyst un-der visible light.
参考文献
| [1] | Michael R. Hoffmann;Scot T. Martin;Wonyong Choi;Detlef W. Bahnemann.Environmental Applications of Semiconductor Photocatalysis[J].Chemical Reviews,19951(1):69-96. |
| [2] | An-Wu Xu;Yuan Gao;Han-Qin Liu.The preparation, characterization, and their photocatalytic activities of rare-earth-doped TiO_2 nanoparticles[J].Journal of Catalysis,20022(2):151-157. |
| [3] | 梁金生;金宗哲;王静.稀土/纳米TiO2的表面电子结构[J].中国稀土学报,2002(1):74-76. |
| [4] | Ping Yang;Cheng Lu;Nanping Hua;Yukou Du.Titanium dioxide nanoparticles co-doped with Fe~(3+) and Eu~(3+) ions for photocatalysis[J].Materials Letters,20024(4):794-801. |
| [5] | 李越湘;王添辉;彭绍琴;吕功煊;李树本.Eu3+、Si4+共掺杂TiO2光催化剂的协同效应[J].物理化学学报,2004(12):1434-1439. |
| [6] | Xie YB;Yuan CW;Li XZ.Photocatalytic degradation of X-3B dye by visible light using lanthanide ion modified titanium dioxide hydrosol system[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,20051(1):87-94. |
| [7] | Akihiko Kudo.Recent progress in the development of visible light-driven powdered photocatalysts for water splitting[J].International journal of hydrogen energy,200714(14):2673-2678. |
| [8] | Thammanoon Sreethawong;Yoshikazu Suzuki;Susumu Yoshikawa.Photocatalytic evolution of hydrogen over mesoporous TiO_2 supported NiO photocatalyst prepared by single-step sol-gel process with surfactant template[J].International journal of hydrogen energy,200510(10):1053-1062. |
| [9] | Dong Hyun Kim;Ki Soo Lee;Ji Hoon Yoon;Jum Suk Jang;Duck-Kyun Choi;Yang-Kook Sun;Sun-Jae Kim;Kyung Sub Lee.Synthesis and electrochemical properties of Ni doped titanate nanotubes for lithium ion storage[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,200823(23):7718-7722. |
| [10] | S.H. Woo;W.W. Kim;S.J. Kim.Photocatalytic behaviors of transition metal ion doped TiO_2 powder synthesized by mechanical alloying[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,20070(0):1151-1154. |
| [11] | Jing DW;Zhang YJ;Guo LJ.Study on the synthesis of Ni doped mesoporous TiO2 and its photocatalytic activity for hydrogen evolution in aqueous methanol solution[J].Chemical Physics Letters,20051/3(1/3):74-78. |
| [12] | Suresh C. Pillai;Pradeepan Periyat;Reenamole George;Declan E. McCormack;Michael K. Seery;Hugh Hayden;John Colreavy;David Corr;Steven J. Hinder.Synthesis of High-Temperature Stable Anatase TiO2 Photocatalyst[J].The journal of physical chemistry, C. Nanomaterials and interfaces,20074(4):1605-1611. |
| [13] | Colon G;Hidalgo MC;Munuera G;Ferino I;Cutrufello MG;Navio JA.Structural and surface approach to the enhanced photocatalytic activity of sulfated TiO2 photocatalyst[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,20061/2(1/2):45-59. |
| [14] | Prokes SM;Gole JL;Chen XB;Burda C;Carlos WE.Defect-related optical behavior in surface-modified TiO2 nanostructures[J].Advanced functional materials,20051(1):161-167. |
| [15] | Kuznetsov VN;Serpone N.Visible light absorption by various titanium dioxide specimens[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,200650(50):25203-25209. |
| [16] | Emanuele Barborini;Anna Maria Conti;Iskandar Kholmanov;Paolo Piseri;Alessandro Podesta;Paolo Milani;Cinzia Cepek;Omar Sakho;Roberto Macovez;Massimo Sancrotti.Nanostructured TiO_2 Films with 2 eV Optical Gaps[J].Advanced Materials,200515(15):1842-1846. |
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%