以葡萄糖为碳源,水热法合成水溶性碳量子点(CQDs),通过超声辅助水解法将其与氯氧化铋(BiOCl)复合,制备BiOCl/CQDs复合光催化剂。采用傅里叶红外光谱、X 射线衍射、扫描电子显微镜和荧光分光光度计对BiOCl/CQDs的结构与性能进行了表征。并以罗丹明B为降解底物,考察不同碳点含量的复合光催化剂的光催化性能。结果表明,和纯相氯氧化铋相比,复合光催化剂的降解率有所提高。碳点浓度为1．5 mg/mL,降解时间为40 min时,罗丹明B的降解率可达到93％。
The water-souble carbon quantum dots(CQDs)were synthesized using the hydrothermal carboniza-tion method with glucose as carbon source.Then a bit of CQDs was loaded on the BiOCl surface by a ultrasonic assisted hydrolysis,and the BiOCl/CQDs complex photocatalysts was goated.The structure and properties of BiOCl/CQDs photocatalysts was characterized by X-ray diffraction (XRD ), scanning electron microscope (SEM),Fourier infrared spectrum (FT-IR)and Fluorescence spectrophotometer.The photocatalytic activity was evaluated by photocatalytic degradation of rhodamine B,and investigated different CQDs content of photo-catalytic performance of the photocatalyst.The experiments demonstrated that the degradation rate was en-hanced obviously compared with the single phase BiOCl,and the degradation rate reached to 93% in 40 minutes when the concentration of CQDs was 1 .5 mg/mL.
参考文献
| [1] | 余长林;陈建钗;操芳芳;李鑫;樊启哲;YU Jimmy C;魏龙福.Pt/BiOCl纳米片的制备、表征及其光催化性能[J].催化学报,2013(2):385-390. |
| [2] | Cao, SH;Guo, CF;Lv, Y;Guo, YJ;Liu, Q.A novel BiOCl film with flowerlike hierarchical structures and its optical properties[J].Nanotechnology,200927(27):275702:1-275702:7. |
| [3] | Zhang KL;Liu CM;Huang FQ;Zheng C;Wang WD.Study of the electronic structure and photocatalytic activity of the BiOCl photocatalyst[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,20063/4(3/4):125-129. |
| [4] | 刘红旗;顾晓娜;陈锋;张金龙.BiOCl纳米片微球的制备及其形成机理[J].催化学报,2011(1):129-134. |
| [5] | 张放放;王聪;吴素娟;崔银芳;程久珊;王天民.Ag/BiOCl复合纳米薄膜的合成及光催化性能研究[J].稀有金属,2012(2):272-276. |
| [6] | 王嘉楠;倪刚;李玲玲;李静.BiVO4/BiOCl复合材料的制备及其光催化性能的研究[J].现代化工,2014(9):59-63. |
| [7] | Zheng Ma;Yong-Lai Zhang;Lei Wang.Bioinspired Photoelectric Conversion System Based on Carbon-Quantum-Dot-Doped Dye-Semiconductor Complex[J].ACS applied materials & interfaces,201311(11):5080-5084. |
| [8] | Byong Yong Yu;Seung-Yeop Kwak.Carbon quantum dots embedded with mesoporous hematite nanospheres as efficient visible light-active photocatalysts[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,201217(17):8345-8353. |
| [9] | Zhang, H.;Ming, H.;Lian, S.;Huang, H.;Li, H.;Zhang, L.;Liu, Y.;Kang, Z.;Lee, S.-T..Fe_2O_3/carbon quantum dots complex photocatalysts and their enhanced photocatalytic activity under visible light[J].Dalton transactions: An international journal of inorganic chemistry,201141(41):10822-10825. |
| [10] | 王旭珍;周泉;任素贞;万鹏;邱介山.溶剂热法制备Fe3O4/氧化石墨烯复合材料及其性能研究?[J].功能材料,2015(3):3045-3049. |
| [11] | 董英鸽;杨金龙;丁艳丽;魏志佳;胡胜亮.氨基化碳量子点与二氧化钛复合催化性能研究?[J].功能材料,2015(6):6086-6090. |
| [12] | Hang Yu;Hengchao Zhang;Hui Huang.ZnO/carbon quantum dots nanocomposites: one-step fabrication and superior photocatalytic ability for toxic gas degradation under visible light at room temperature[J].New Journal of Chemistry,20124(4):1031-1035. |
| [13] | Haitao Li;Ruihua Liu;Yang Liu.Carbon quantum dots/Cu2O composites with protruding nanostructures and their highly efficient (near) infrared photocatalytic behavior[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,201234(34):17470-17475. |
| [14] | Tang, D.;Zhang, H.;Huang, H.;Liu, R.;Han, Y.;Liu, Y.;Tong, C.;Kang, Z..Carbon quantum dots enhance the photocatalytic performance of BiVO _4 with different exposed facets[J].Dalton transactions: An international journal of inorganic chemistry,201318(18):6285-6289. |
| [15] | Yang, Z.-C.;Wang, M.;Yong, A.M.;Wong, S.Y.;Zhang, X.-H.;Tan, H.;Chang, A.Y.;Li, X.;Wang, J..Intrinsically fluorescent carbon dots with tunable emission derived from hydrothermal treatment of glucose in the presence of monopotassium phosphate[J].Chemical communications,201142(42):11615-11617. |
| [16] | Shoujun Zhu;Junhu Zhang;Shijia Tang;Chunyan Qiao;Lei Wang;Haiyu Wang;Xue Liu;Bo Li;Yunfeng Li;Weili Yu;Xingfeng Wang;Hongchen Sun;Bai Yang.Surface Chemistry Routes to Modulate the Photoluminescence of Graphene Quantum Dots: From Fluorescence Mechanism to Up-Conversion Bioimaging Applications[J].Advanced functional materials,201222(22):4732-4740. |
| [17] | Wei Wang;Baohua Gu;Liyuan Liang;William Hamilton.Fabrication of Two- and Three-Dimensional Silica Nanocolloidal Particle Arrays[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,200315(15):3400-3404. |
| [18] | Zhenhui Kang;Chi Him A. Tsang;Ning-Bew Wong.Silicon Quantum Dots: A General Photocatalyst for Reduction, Decomposition, and Selective Oxidation Reactions[J].Journal of the American Chemical Society,200740(40):12090-12091. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%