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Synthesis and Characterization of Rectorite/ZnO/TiO2 Composites and Their Properties of Adsorption and Photocatalysis for the Removal of Methylene Blue Dye王欢欢1,周培疆1,WANG Jia1,WANG Yifei1,WEI Junchong2,ZHAN Hongju3,GUO Rui1,ZHANG Yali11. School of Resource and Environmental Science, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Eco-environment Technology R&D......
:rare earths; amorphous phase; polycrystalline phase; photocatalysis process; self-photo-sensitization photolysis; interband trap site; electron scavenger; [全文内容正在添加中] ......
; photocatalysis 1 Introduction As a promising semiconductor photocatalyst, TiO2 has attracted worldwide interest for its good chemical stability, strong oxidizing power, non-toxicity and low-cost related... on photocatalytic activity of TiO2 thin films (b) after 6 h photocatalytic reaction Figure 7(a) shows the adsorption spectra of methylene blue solution after the photocatalysis process. It can be observed......
要因素,而比表面积只起次要作用. 5) 催化剂的浓度,甲基橙浓度,溶液pH值以及光源对g-C3N4产物的可见光光催化活性也有较大影响. REFERENCES [1] FUJISHIMA A, ZHANG Xin-tong, TRYK D A. Heterogeneous photocatalysis: From water photolysis to applications... of carbon nitride: Band-gap engineering and improved functions for photocatalysis[J]. Energy & Environmental Science, 2011, 4(3): 675-678. [8] Xu J, WANG Y, ZHU Y. Nanoporous graphitic carbon nitride......
photocatalytic efficiency. Key words: BiVO4; hydrothermal method; Fe doping; photocatalysis 1 Introduction In past decades, semiconductor photocatalysis has received a great deal of attention due... mechanism, and application in Photocatalysis [J]. Crystengcomm, 2010, 12(12): 1754-1758. [8] YU Jian-qiang, KUDO A. Effects of structural variation on the photocatalytic performance of hydrothermally......
; mesoporous; visible light photocatalysis 因具有无毒,化学性质稳定,难溶,抗光及化学腐蚀等优点,TiO2光催化剂在降解空气和水中有机污染物方面有着广阔的应用前景[1-3].因而,有关TiO2光催化剂的研究也受到了越来越多的关注,并在制备方法及机理研究方面取得了许多新进展.然而,由于存在激发波长短,太阳能利用率低,光生电子及空穴复合几率高,量子效率低等不足,因此,开发...子物质具有很强的亲和力,有利于对OH-,H2O及带有可极化官能团有机污染物的吸附[15, 37]. 图9 不同样品的紫外光催化活性和可见光催化活性 Fig. 9 Photocatalysis activity of samples under UV light (a) and visible light (b) 图10 SO42-/xW-TiO2@SiO2光......
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; photocatalysis 光催化技术在空气净化,保洁除菌,污水处理等方面显示出了巨大的应用潜力,而TiO2 作为光催化剂具有极大发展前景,但目前存...2次,煅烧温度500 ℃. REFERENCES [1] 许珂敬, 杨新春, 李正民. 离子掺杂对纳米TiO2薄膜光催化性能的影响[J]. 中国有色金属学报, 2006, 16(5): 847 -852. XU Ke-jing, YANG Xin-chun, LI Zheng-min. Influence of different ion dopants on photocatalysis......
纳米TiO2薄膜的制备及光催化性能黄长萍1,闫翔宇1,彭帅1,鲁道荣1(1.安徽省合肥市合肥工业大学化工学院)摘 要:采用自然延流法在载玻片基底上制备出纳米TiO2薄膜,以300W高压汞灯为光源,进行光催化降解苯酚溶液的研究.结果表明,制备的纳米TiO2薄膜对苯酚有稳定的光催化氧化降解性能,且TiO2薄膜具有很好的寿命,重复使用多次后,其光催化性能几乎不变.少量的H2O2与TiO2有很好的协同催化作用,使得苯酚光催化氧化速度极大加快,且苯酚降解率随着H2O2量的增加而不断上升.高效液相色谱(HPLC)测试结果表......
performance and composites loaded with ZnO show better photocatalytic performance than those loaded with TiO2.Key words:silane film; ZnO microsphere; foam nickel; load; photocatalysis......
