采用溶剂热法-浸渍法在低温条件下制备了Pt/BiOC1纳米结构,用XRD、EDS、SEM、(HR)TEM、N2吸附-脱附仪、UVVis吸收光谱仪、荧光探针技术对样品进行了表征,考察了其在氙灯辐照下对气相甲苯的光催化降解性能.结果表明,Pt/BiOC1纳米结构具有良好的结晶度,样品BET比表面积达到28.48 m2/g;其在紫外光区和可见光区具有良好的光吸收性质;而且Pt修饰也使样品表面羟基自由基生成能力得到明显增强.Pt/BiOC1纳米结构对气相甲苯的光催化降解效率比未Pt修饰的BiOC1纳米结构提高了约70％,比BiOCl纳米片提高了6.6倍,同时,Pt修饰还能抑制甲醛生成、避免更大危害性的二次污染.Pt/BiOC1纳米结构对气相甲苯光催化效率的提高与其较大的比表面积、增强的光吸收性质和高效的光生载流子分离能力有关.
参考文献
| [1] | Yu J.G.,Zhang P.Y.,Yu H.G.,Trapalis C.,Environmental photocatalysis,International Journal of Photoenergy,2012,1(2012) |
| [2] | Su K.,Ai Z.H.,Zhang L.Z.,Efficient visible light-driven photocatalytic degradation of pentachlorophenol with Bi2O3/TiO2-xBx,Journal of Physical Chemistry C,116(32),17118(2012) |
| [3] | Zhang L.,Wang W.Z.,Sun S.M.,Sun Y.Y.,Gao E.P.,Xu J.,Water splitting from dye wastewater:a case study of BiOCl/copper(Ⅱ)phthalocyanine composite photocatalyst,Applied Catalysis B:Environmental,132,315(2013) |
| [4] | YU Changlin,CAO Fangfang,SHU Qing,BAO Yulong,XIE Zhipeng,Yu Jimmy C.YANG Kai,Preparation,characterization and photocatalytic performance ofAg/BiOX (X=C1,Br,I) composite photocatalysts,Acta Physico-Chimica Sinica,28(3),647(2012)(余长林,操芳芳,舒庆,包玉龙,谢志鹏,Yu JimmyC,杨凯,Ag/BiOX (X=Cl,Br,I)复合光催化剂的制备、表征及其光催化性能,物理化学学报,28(3),647(2012)) |
| [5] | Zhang K.,Zhang D.Q.,Liu J.,Ren K.X.,Luo H.,Peng Y.J.,Li G.S.,Yu X.B.,A novel nanoreactor framework of iodine-incorporated BiOCl core-shell structure:enhanced light-harvesting system for photocatalysis,Crystengcomm,14(2),700(2012) |
| [6] | Weng S.X.,Chen B.B.,Xie L.Y.,Zheng Z.Y.,Liu P.,Facile in situ synthesis of a Bi/BiOCl nanocomposite with high photocatalytic activity,Journal of Materials Chemistry A,1(9),3068(2013) |
| [7] | Huang W.L.,Electronic structures and optical properties of BiOX (X=F,C1,Br,I) via DFT calculations,Joumal of Computational Chemistry,30(12),1882(2009) |
| [8] | Zhang X.,Ai Z.,Jia F.,Zhang L.,Generalized one-pot synthesis,characterization,and photocatalytic activity of hierarchical BiOX(X=Cl,Br,I) nanoplate microspheres,Journal of Physical Chemistry C,112(3),747(2008) |
| [9] | Zhu L.P.,Liao G.H.,Bing N.C.,Wang L.L.,Yang Y.,Xie H.Y.,Self-assembled 3D BiOC1 hierarchitectures:tunable synthesis and characterization,CrystEngComm,12(11),3791(2010) |
| [10] | YU Changlin,CHEN Jianchai,CAO Fangfang,LI Xin,FAN Qizhe,YU Jimmy C,WEI Longfu,Preparation,characterization,and photocatalytic properties of Pt/BiOCl nanoplates,Chinese Jonmal of Catalysis,34(2),385(2013)(余长林,陈建钗,操芳芳,李鑫,樊启哲,YU Jimmy,魏龙福,Pt/BiOC1纳米片的制备、表征及其光催化性能,催化学报,34(2),385(2013)) |
| [11] | SUN Junhui,YANG Hua,XIAN Tao,WANG Weipeng,FENG Wangjun,Polyacrylamide Gel Preparation,Photocatalytic Properties,and Mechanism of BiVO4 Particles,Chinese Journal of Catalysis,33(12),1982(2012)(孙军辉,杨华,县涛,王伟鹏,冯旺军,BiVO4颗粒的聚丙烯酰胺凝胶法制备及光催化性能和机理.催化学报,33(12),1982(2012)) |
| [12] | Xu C.,Wei X.,Ren Z.,Wang Y.,Xu G.,Shen G.,Han G.,Solvothermal preparation of Bi2WO6 nanocrystals with improved visible light photocatalytic activity,Materials Letters,63(26),2194(2009) |
| [13] | Mackowski S.,Hybrid nanostructures for efficient light harvesting,Journal of Physics:Condensed Matter,22(19),(2010) |
| [14] | Zheng Y.,Lv K.L.,Li X.F.,Deng K.J.,Sun J.,Chen L.Q.,Cui L.Z.,Du D.Y.,TiO2-Modified Flower-Like Bi2WO6 Nanostrnctures with Enhanced UV-Vis Photocatalytic Activity,Chemical Engineering & Technology,34(10),1630(2011) |
| [15] | Gao F.,Chen X.Y.,Yin K.B.,Dong S.,Ren Z.F.,Yuan F.,Yu T.,Zou Z.,Liu J.M.,Visible-light photocatalytic properties of weak magnetic BiFeO3 nanoparticles,Advanced Materials,19(19),2889(2007) |
| [16] | Li L.,Yan B.,BiVO4/Bi2O3 submicrometer sphere composite:microstructure and photocatalytic activity under visible-light irradiation,Journal of Alloys and Compounds,276(1-2),624(2009) |
| [17] | Li R.H.,Chen W.X.,Kobayashi H.,Ma C.X.,Platinum-nanoparticle-loaded bismuth oxide:an efficient plasmonic photocatalyst active under visible light,Green Chemistry,12(2),212(2010) |
| [18] | Ren J.,Wang W.,Sun S.,Zhang L.,Chang J.,Enhanced photocatalyric activity of Bi2WO6 loaded with Ag nanoparticles under visible light irradiation,Applied Catalysis B:Environmental,92(1-2),50(2009) |
| [19] | Mills A.,O' rourke C.,Photocatalytic oxidation of toluene in an NMR tube,Journal of Photochemistry and Photobiology A:Chemistry,233,34(2012) |
| [20] | Mo J.,Zhang Y.,Xu Q.,Lamson J.J.,Zhao R.,Photocatalytic purification of volatile organic compounds in indoor air:A literature review,Atmospheric Environment,43(14),2229(2009) |
| [21] | YIN Yongquan,ZHENG Yan,SU Yuangcheng,CUI Quan,CUI Zhaojie,Reaction kinetics and mechanism of photocatalytic degradation of gaseous toluene,Chinese Journal of Process Engineering,9(3),536(2009)(殷永泉,郑艳,苏元成,崔瑔,崔兆杰,气相甲苯光催化降解反应动力学及机理,过程工程学报,9(3),536(2009)) |
| [22] | Huang J.,Xu X.,Gu C.,Wang W.,Geng B.,Sun Y.,Liu J.,Sizecontrolled synthesis of porous ZnSnO3 cubes and their gas-sensing and photocatalysis properties,Sensors and Actuators B:Chemical,171-172,572(2012) |
| [23] | ZOU Xuejun,LI Xinyong,ZHAO Qidong,CHEN Guohua,Preparation and characterization of LaVO4/TiO2 nanotubes and their application in photoeatalytic degradation of gaseous toluene under visible light,Chemical Journal of Chinese Universities,33(5),1046(2012)(邹学军,李新勇,肇启东,陈国华,可见光响应的LaVO4/TiO2纳米管的合成、表征及对气相甲苯的光催化性能,33(5),1046(2012)) |
| [24] | Zhang X.,Chen Y.L.,Liu R.-S.,Tsai D.P.,Plasmonic photocatalysis,Reports On Progress In Physics,76(4),(2013) |
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%