欢迎登录材料期刊网

材料期刊网

高级检索

以钛酸丁酯为钛源,膨胀石墨为载体,采用溶胶-凝胶法成功地制备了膨胀石墨(EG)负载TiO2光催化剂(TEG),采用X射线衍射分析(XRD)、扫描电镜(SEM)、比表面积等分析技术对样品进行表征,以甲基橙为目标降解物,考察了热处理温度、负载次数、目标降解物浓度等不同条件下催化剂的光催化性能.结果表明,氧化钛以纳米颗粒的形式附着在膨胀石墨薄片表面,具有疏松多孔蠕虫状结构的膨胀石墨为氧化钛提供高浓度的三维降解环境,负载2次在500℃下经过3h热处理得到的催化剂在紫外光激发下对甲基橙溶液表现出较高的光催化活性.

参考文献

[1] Carp O;Huisman C L;Reller A .[J].Progress in Solid State Chemistry,2004,32:33-177.
[2] Danion A;Disdier J;Guillard C et al.[J].Applied Catalysis B:Environmental,2006,62:274-281.
[3] Tryba B;Toyoda M;Morawski A W et al.[J].Chemosphere,2005,60:477-484.
[4] 宋波,蒋引珊,方送生.天然沸石的热活化对负载TiO2的结构与性能的影响[J].功能材料,2004(01):122-124.
[5] El-Sheikh AH;Newman AP;Al-Daffaee H;Phull S;Cresswell N;York S .Deposition of anatase on the surface of activated carbon[J].Surface & Coatings Technology,2004(2/3):284-292.
[6] Yuan Rusheng;Guan Rongbo;Zheng Jingtang .[J].Scripta Materialia,2005,52:1329-1334.
[7] 袁建梅,安太成,陈慧,陈嘉鑫,丁雪军,盛国英,傅家谟.纳米TiO2光催化剂的结构调控及其光催化活性研究[J].功能材料,2005(03):477-480.
[8] Gelover S;Mondragon P;Jimenez A .[J].Journal of Photochemistry and Photobiology A:Chemistry,2004,165:241-246.
[9] Chen Yongjun;Dionysiou D D .[J].Applied Catalysis B:Environmental,2006,62:255-264.
[10] Tsumura T.;Kojitani N.;Umemura H.;Toyoda M.;Inagaki M. .Composites between photoactive anatase-type TiO2 and adsorptive carbon[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2002(1/4):429-436.
[11] Savoskin MV;Yaroshenko AP;Lazareva NI;Mochalin VN;Mysyk RD .Using graphite intercalation compounds for producing exfoliated graphite-amorphous carbon-TiO2 composites[J].The journal of physics and chemistry of solids,2006(5/6):1205-1207.
[12] 康飞宇,郑永平,兆恒,王海宁,王鲁宁,沈万慈,稻垣道夫.膨胀石墨对重油和生物体液的吸附-来自中国的研究[J].新型炭材料,2003(03):161-173.
[13] Yuang Rusheng;Zheng Jingtang;Guang Rongbo et al.[J].Colloids and Surfaces A:Physicochem Eng Aspects,2005,25:4131-4136.
[14] 牟柏林,李芳菲,侯天意,孙申美,王瑛玮,祖胜男.天然沸石对提高TiO2光催化活性的作用[J].吉林大学学报(地球科学版),2006(04):668-672.
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:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%