采用晶种原位形成与水热合成法,在SiO2大孔材料中原位生长出氧化锌纳米线(ZnO NWs).纳米线是由六方纤锌矿型氧化锌晶体构成,在孔道内呈现无规纳米线团形貌,且分散良好、结构稳定,其直径为15-20 nm.ZnO NWs/SiO2复合能有效负载四羧基酞菁铁(Fe(Ⅲ)-taPc),最高负载量(质量分数)为11.5％.进一步制备出Fe(Ⅲ)-taPc/ZnO NWs/SiO2三元复合光催化剂,通过扫描电镜(SEM)、粉末衍射(XRD)、紫外-可见漫反射光谱(UV-vis)、Raman光谱(Raman)对其进行表征,并以有机染料罗丹明B为目标降解物考察了其可见光光催化降解性能.结果表明,在可见光照射下三元催化剂能快速催化降解罗丹明B,降解反应遵守一级动力学方程.Fe(Ⅲ)-taPc负载量(质量分数)为3.5％的三元复合光催化剂显示出最高的活性,在60 min内使罗丹明B的降解率达到98.6％,ZnO NWs的存在使Fe(Ⅲ)-taPc的光催化活性平均提高77％.6次循环使用后三元复合催化剂的活性没有明显下降,表明催化剂性能稳定,可重复使用多次.
参考文献
| [1] | M.Muruganandham,I.S.Chen,J.J.Wu,Effect of temperature on the formation of macroporous ZnO bundles and its application in photocatalysis,Journal of Hazardous Materials,172,700(2009) |
| [2] | J.Xie,H.Wang,M.Duan,L.H.Zhang,Synthesis and photocatalysis properties of ZnO structures with different morphologies via hydrothermal method,Applied Surface Science,257,6358(2011) |
| [3] | X.Y.LI,J.Wang,J.H,.Yang,J.H.Lang,M.B.Wei,X.W.Meng,S.Q.Lu,Y.R.Sui,Enhanced photocatalytic activity of ZnO microflower arrays synthesized by one-step etching approach,Journal of Molecular Catalysis A:Chemical,378,1(2013) |
| [4] | H.Zhang,R.Zong,Y.Zhu,Photocorrosion inhibition and photoactivity enhancement for zinc oxide via hybridization with monolayer polyaniline,J.Phys.Chem,113(11),4605(2009) |
| [5] | H.B.Fu,T.G.Xu,S.B.Zhu,Y.E Zhu,Photocorrosion inhibition and enhancement of photocatalytic activity for ZnO via hybridization with C60,Environmental Science & Technology,42(21),8064(2008) |
| [6] | LIU Shouxin,LIU Hong,Photocatalysis and Photoelectric Catalysis and Application (Beijing,Chemical Industry Press,2006)p.96-104(刘守新,刘鸿,光催化及光电催化基础与应用(北京,化学工业出版社,2006)p.96-104) |
| [7] | ZHANG Yue,A One-Dimensional ZnO Nanomatedals (Beijing,Science Press,2010)(张跃,一维氧化锌纳米材料(北京,科学出版社,2010)) |
| [8] | J.L.Yang,S.J.An,W Park,Photocatalysis using ZnO thin films and nanoneedles grown by metal-organic chemical vapor deposition,Adv.Mater.,16,1661(2004) |
| [9] | HE Yongning,ZHU Changchun,HOU Xun,Recent advance in characteristics of semiconductor,Journal of Functional Materials and Devices,14(3),566(2008)(贺永宁,朱长纯,侯洵,ZnO宽度隙半导体及其基本特性,功能材料与器件学报,14(3),566(2008)) |
| [10] | X.B.Cao,P.Chen,Y.Guo,Decoration of textured ZnO nanowires array with CdTe quantum dots:enhanced light-trapping effect and photogenerated charge separation,J.Phys.Chem.C,112,20560(2008) |
| [11] | A.B.Sorkin,E.V.Kudrik,Phthalocyanine metal complexes:versatile catalysts for selective oxidation and bleaching,Catal.Today,159,37(2011) |
| [12] | L.D.Gao,X.H.Qian,Synthesis and photosensitizing properties of fluoroalkoxyl ph-thalocyanine metal complexes,Journal of Fluorine Chemistry,113(2),161(2002) |
| [13] | GAO Guandao,ZHANG Aiyong,ZHANG Meng,CHEN Jinlong,ZHANG Quanxing,Reaction factors and kinetics of degradation of malachite green with novel biomimetic photocatalyst HMS-FePcS,Chinese Journal of Catalysis,29(4),397(2008)(高冠道,张爱勇,张萌,陈金龙,张全兴,新型仿生光催化剂HMS-FePcS催化降解孔雀绿的反应因素及动力学,催化学报,29(4),397(2008)) |
| [14] | Z.Mesgari,M.Gharagozlou,A.Khosrari,Spectrophotometric studies of visible light induced photocatalytic degradation of methy orange using phthalocyanine modified Fe-doped TiO2 nanocrystals,Appl.Catal.A,411-412,139(2012) |
| [15] | Ruifeng Zhang,Nengbing Long,Lele Zhang,Preparation of 3-dimensional SiO2 structures via a templating method,Thin Solid Films,517,6677(2009) |
| [16] | LONG Nengbing,ZHANG Ruifeng,Preparation and photo-degradation of large-sized TiO2/SiO2 macroporous materials,Chinese.J.Inorg.Chem,25(7),1153(2009)(龙能兵,张瑞丰,大尺寸TiOdSiO2大孔材料的制备及光降解性能,无机化学学报,25(7),1153(2009)) |
| [17] | LI Wenli,ZHANG Ruifeng,WANG Wenqin,YE Jian,Preparation and electrochemical properties of macroporous ATO/SiO2 electrode,Chinese.J.Inorg.Chem,26(8),1382(2010)(李文丽,张瑞丰,王文钦,叶剑,大孔SiO2/ATO电极的制备及其电化学性能研究,无机化学学报,26(8),1382 (2010)) |
| [18] | CHAI Zhanglin,ZHANG Ruifeng,XIAO Tonghu,LIANG Yunxiao,Preparation and application of macroporous ATO/SiO2 electrode in electrochemical degradation of 4-chlorophenol,Electrochemistry,17(4),427(2011)(柴张琳,张瑞丰,肖通虎,梁云霄,ATO/SiO2电极制备及对氯苯酚电催化降解研究,电化学,17(4),427(2011)) |
| [19] | ZHANG Yu,ZHANG Ruifeng,Preparation and photocatalytic degradation properties of novel biommimetic photocatalyst Fe(Ⅲ)-taPc/SiO2,Journal of Functional Materials,7(44),761 (2013)(张钰,张瑞丰,新型大孔仿生光催化剂Fe(Ⅲ)-taPc/SiO2的制备及其光催化降解性能,功能材料,7(44),761(2013)) |
| [20] | H.Shirai,A.Maruyama,J.Takano,K.Kobayashi,N.Hojo,Synthesis of ploystyrene bonded Fe(Ⅲ)-as well as Co(Ⅱ)-4,4',4' ',4" 'tetracarboxy phthalocyanine and their catalase-like activity,Makromol.Chem.,181(3),575(1980) |
| [21] | X.M.Liu,Y.C.Zhou,Seed-mediated synthesis of uniform ZnO nanorods in the presence of polyethylene glycol,Journal of Crystal Growth,270,527(2004) |
| [22] | Radhouane Bel Hadj Tahar,Structural and electrical properties of aluminum-doped zinc oxide films prepared by sol-gel process,Journal of the European Ceramic Society,25,3301(2005) |
| [23] | K.A.Alim,V.A.Fonoberov,M.Shamsa,A.A.Balandin,MicroRaman investigation of optical phonons in ZnO nanocrystals,Journal of Applied physics,97,124313(2005) |
| [24] | K.A.Alim,V.A.Fonoberov,A.A.Balandin,Origin of the optical phonon frequency shifts in ZnO quantum dots,Applied Physics Letters,86,053103(2005) |
| [25] | LIU Zhaojun,LIU Yulong,MO Yujun,The Raman spectra of metallo-phthalocyanine compounds,Chinese Journal of Light Scatiering,13(3),156(2001)(刘照军,刘玉龙,莫育俊,金属酞菁化合物的拉曼光谱研究,光散射学报,13(3),156(2001)) |
| [26] | W.Bala,M.Wojdyla,M.Rebarz,Influence of central metal atom in MPc(M=Cu,Zn,Mg,Co) on Raman,FT-IR,absorbance,reflectance,and photoluminescence spectra,J.Photoeletronics and Advantanced Materials,11(3),264(2009) |
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