Application of temperature modified titanate nanotubes for removal of an azo dye from water in a hybrid photocatalysis-MD process
作者： Sylwia Mozia
DOI: 10.1016/J.CATTOD.2010.02.026
关键词: Ammonia 、 Membrane distillation 、 Chemical engineering 、 Membrane reactor 、 Chemistry 、 Photocatalysis 、 Catalysis 、 Inorganic chemistry 、 Calcination 、 Photodegradation 、 Titanate
摘要: The presented studies have focused on application of modified titanate nanotubes (TNTs) for decomposition Acid Red 18 in water. TNTs were prepared via hydrothermal method. post-treatment was carried out by calcination the as-received at temperatures 400-700 °C. photocatalytic experiments revealed that most active towards AR18 calcinated 600 °C (TNT600). However, activity nanotubes, regardless annealing temperature applied found to be lower than P25. In second step investigations, TNT600 degradation a membrane reactor coupling photocatalysis with distillation. effect photocatalyst loading effectiveness especially investigated. After 5 h irradiation amount lowered ca. 67, 80 and 97% loadings 0.1-0.5 g/dm 3 , respectively. mineralization organics significantly decolorization solution. ofTOC after experiment decreased 20, 27 57%, g TNT600/dm Amongst products by-products photodegradation organic acids (formic, acetic oxalic) inorganic ions (nitrite, nitrate, ammonia sulfate) detected. product hybrid process (distillate) high quality water conductivity range 2.3-3 μS/cm.
elsevier.com
sci-hub.se 参考文章(57)
J. Ryu, W. Choi, K.-H. Choo, A pilot-scale photocatalyst-membrane hybrid reactor: performance and characterization Water Science and Technology. ,vol. 51, pp. 491- 497 ,(2005) , 10.2166/WST.2005.0672
K Sopajaree, SA Qasim, S Basak, K Rajeshwar, An integrated flow reactor-membrane filtration system for heterogeneous photocatalysis. Part I: Experiments and modelling of a batch-recirculated photoreactor Journal of Applied Electrochemistry. ,vol. 29, pp. 533- 539 ,(1999) , 10.1023/A:1026418208733
K. Sopajaree, S.A. Qasim, S. Basak, K. Rajeshwar, An integrated flow reactor-membrane filtration system for heterogeneous photocatalysis. Part II: Experiments on the ultrafiltration unit and combined operation Journal of Applied Electrochemistry. ,vol. 29, pp. 1111- 1118 ,(1999) , 10.1023/A:1003633309224
Raffaele Molinari, Cesare Grande, Enrico Drioli, Leonardo Palmisano, Mario Schiavello, Photocatalytic membrane reactors for degradation of organic pollutants in water Catalysis Today. ,vol. 67, pp. 273- 279 ,(2001) , 10.1016/S0920-5861(01)00314-5
R. Molinari, F. Pirillo, V. Loddo, L. Palmisano, Heterogeneous photocatalytic degradation of pharmaceuticals in water by using polycrystalline TiO2 and a nanofiltration membrane reactor Catalysis Today. ,vol. 118, pp. 205- 213 ,(2006) , 10.1016/J.CATTOD.2005.11.091
Raffaele Molinari, Michelangelo Borgese, Enrico Drioli, Leonardo Palmisano, Mario Schiavello, Hybrid processes coupling photocatalysis and membranes for degradation of organic pollutants in water Catalysis Today. ,vol. 75, pp. 77- 85 ,(2002) , 10.1016/S0920-5861(02)00047-0
C. Su, B.-Y. Hong, C.-M. Tseng, Sol–gel preparation and photocatalysis of titanium dioxide Catalysis Today. ,vol. 96, pp. 119- 126 ,(2004) , 10.1016/J.CATTOD.2004.06.132
K. Azrague, P. Aimar, F. Benoit-Marquié, M.T. Maurette, A new combination of a membrane and a photocatalytic reactor for the depollution of turbid water Applied Catalysis B-environmental. ,vol. 72, pp. 197- 204 ,(2007) , 10.1016/J.APCATB.2006.10.007
Luozheng Zhang, Hong Lin, Ning Wang, Chunfu Lin, Jianbao Li, The evolution of morphology and crystal form of titanate nanotubes under calcination and its mechanism Journal of Alloys and Compounds. ,vol. 431, pp. 230- 235 ,(2007) , 10.1016/J.JALLCOM.2006.05.065
Tomoko Kasuga, Masayoshi Hiramatsu, Akihiko Hoson, Toru Sekino, Koichi Niihara, Formation of titanium oxide nanotube Langmuir. ,vol. 14, pp. 3160- 3163 ,(1998) , 10.1021/LA9713816