以鱼鳞为模板合成仿生氧化铈及其性能
Synthesis and Performance of Biomimetic CeO2 Derived from Fish Scale
摘 要
以鲫鱼鱼鳞为生物模板合成了仿生氧化铈; 通过X射线衍射仪、场发射扫描电子显微镜、透射电子显微镜和N2吸附-脱附分析仪等对其结构与性能进行了表征。结果表明: 所得氧化铈是由具有立方萤石结构的氧化铈组成, 晶粒尺寸为5~7 nm; 氧化铈中存在大量的微米及纳米孔, 孔径集中分布于2~5 nm; 其在太阳光下表现出较强的光催化活性, 150 min内其对酸性品红的降解率可达到90%以上, 远远高于市售氧化铈粉体的。
仿生氧化铈
光催化
biotemplate
biomimetic CeO2
photocatalysis
Abstract
The biomimetic CeO2 was obtained by using fish scales as biotemplate, and its structure and properties were characterized by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy and nitrogen adsorption-desorption measuring. The results show that the CeO2 was the cubic fluorite structure with grain sizes of 5—7 nm, and a lot of pores with 2-5 nm were found in it. The prepared CeO2 displayed the superior photocatalytic activity for the degradation of acid fuchsin under sun-light irradiation, with a degradation rate as high as 90% within 150 min.
中图分类号 O611.4
所属栏目 试验研究
基金项目 国家自然科学基金资助项目(21071107;51002016); 江苏省油气储运重点实验室项目基金资助项目(CY0901); 苏州市环境功能材料重点实验室项目(SZS201008); 苏州市工业支撑(SYG201029); 江苏省研究生科研创新计划项目( CX10B-256Z)
收稿日期 2011/11/22
修改稿日期 2012/8/14
网络出版日期
作者单位点击查看
备注王炜(1985-), 男, 安徽巢湖人, 硕士研究生。
引用该论文: WANG Wei,CHEN Zhi-gang,CHEN Feng,WANG Tai-bin. Synthesis and Performance of Biomimetic CeO2 Derived from Fish Scale[J]. Materials for mechancial engineering, 2012, 36(12): 17～20
王炜,陈志刚,陈丰,王太斌. 以鱼鳞为模板合成仿生氧化铈及其性能[J]. 机械工程材料, 2012, 36(12): 17～20
被引情况:
【1】陈丰,陈志刚,马娟宁,钱君超,王盟盟,陆秋月, "水热法合成棒束状纳米CeO2粉体及其催化性能",机械工程材料 38, 89-94(2014)
【2】陈志刚,刘灿斌,钱君超,张凯, "仿生CuO-CeO2复合材料低温选择性催化还原脱硝性能",机械工程材料 40, 73-77(2016)
【3】陈志刚,张玉珠,钱君超,王盟盟,陆秋月, "以硅藻为模板合成TiO2微胶囊及其可见光催化性能",机械工程材料 39, 48-52(2015)
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参考文献
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【2】ZHANG Y, ZHA S, LIU M. Dual-scale porous electrodes for solid oxide fuel cells from polymer foams[J]. Advanced Materials,2005,17:487-491.
【3】JASINSKI P, SUZUKI T, ANSERSON H. Nanocrystalline undoped ceria oxygen sensor[J]. Sensors and Actuators B,2003,95:73-77.
【4】ZHANG D, FU H, SHI L,et al.Synthesis of CeO2 nanorods via ultrasonication assisted by polyethylene glycol[J]. Inorganic Chemistry,2007,46:2446-2451.
【5】CAMPBELL C, PEDEN C. Oxygen vacancies and catalysis on ceria surfaces[J]. Science,2005,309:713-714.
【6】CHEN Z G, CHEN F, LI X Z,et al.Facile synthesis of CeO2 nanotubes templated by modified attapulgite[J]. Journal of Rare Earths,2010,28:566-570.
【7】GUO Z Y, JIAN F F, DUF L.A simple method to controlled synthesis of CeO2 hollow microspheres[J]. Scripta Materialia,2009,61:48-51.
【8】KEOMANY D, POINSIGNON C, DEROO D.Sol gel preparation of mixed cerium-titanium oxide thin films[J]. Solar Energy Materials and Solar Cells,1994,33(4):429-441.
【9】KIM S W, KIM M, LEE W Y,et al.Fabrication of hollow palladium spheres and their successful application to the recyclable heterogeneous catalyst for suzuki coupling reactions[J]. Journal of the American Chemical Society,2002,124:7642-7643.
【10】TIEMANN M. Repeated templating[J]. Chemistry of Materials,2008,20:961-971.
【11】SHEN W H, DONG X P, SHI J L,et al.Mesoporous CeO2 and CuO-loaded mesoporous CeO2:Synthesis, characterization and CO catalytic oxidation property[J]. Microporous and Mesoporous Materials,2005,85:157-162.
【12】丛海林,曹维孝. 二氧化硅胶体晶体及其为模板的多孔材料[J]. 高等学校化学学报,2005,26(3):535-539.
【13】WANG X Q, WANG M, JIN H X,et al.Preparation of carbon nanotubes at the surface of Fe-SBA-15 mesoposous molecular sieves[J]. Applied Surface Science,2005,243(4):151-157.
【14】WANG G T, TALIN A A, WEIRDER D J. Highly aligned, template-free growth and characterization of vertical GaN nanowires on sapphire by meta-organic chemical vapour deposition[J]. Nanotechnology,2006,17(23):5773-5780.
【15】SIERRA-SASTRE Y, CHOI S, PICRAUX S T,et al.Vertical growth of ge nanowires from biotemplated Au nanoparticle catalysts[J]. Journal of the American Chemical Society,2008,130(32):10488-10489.
【16】ZHANG W, ZHANG D, FAN T X, et al. Novel photoanode structure templated from butterfly wing scales[J]. Chemistry of Materials,2008,21(1):33-40.
【17】LI X F, FAN T X, ZHOU H,et al.Enhanced light-harvesting and photocatalytic properties in morph-tio2 from green-leaf biotemplates[J]. Advanced Functional Materials,2009,19(1):45-56.
【18】钱俊超,陈丰,钱前,等. 生物鸡蛋内膜结构氧化铈材料的合成与表征[J]. 高等学校化学学报,2010,31(11):2116-2121.
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