Ceramic-like open-celled geopolymer foam as a porous substrate for water treatment catalyst
作者： T Kovářík , T Křenek , M Pola , D Rieger , J Kadlec
DOI: 10.1088/1757-899X/175/1/012044
关键词:
摘要: This paper presents results from experimental study on microstructural and mechanical properties of geopolymer-based foam filters. The process for making porous ceramic-like geopolymer body was experimentally established, consists (a) paste synthesis, (b) ceramic filler incorporation, (c) coating open-celled polyurethane with mixture, (d) rapid setting procedure, (e) thermal treatment. Geopolymer based potassium silicate solution n(SiO2)/n(K2O)=1.6 powder mixture calcined kaolin precipitated silica. Various types granular (alumina, schistous clay cordierite) were tested in relation to aggregate gradation design particle size distribution. small amplitude oscillatory rheometry strain controlled regime 0.01% angular frequency 10 rad/s applied determination rheology behavior prepared mixtures. Thermal treatment conditions the temperature range 1100 – 1300 °C. developed effectively served as a substrate highly active nanoparticles selected Fe+2 spinels. Such new-type nanocomposite heterogeneous catalyst technological advanced oxidative degradation resistive antibiotics occurring waste waters.
harvard.edu
sci-hub.se 参考文章(10)
Elettra Papa, Valentina Medri, Patricia Benito, Angelo Vaccari, Simone Bugani, Jakub Jaroszewicz, Wojciech Swieszkowski, Elena Landi, Synthesis of porous hierarchical geopolymer monoliths by ice-templating Microporous and Mesoporous Materials. ,vol. 215, pp. 206- 214 ,(2015) , 10.1016/J.MICROMESO.2015.05.043
J. Davidovits, Geopolymers and geopolymeric materials Journal of Thermal Analysis and Calorimetry. ,vol. 35, pp. 429- 441 ,(1989) , 10.1007/BF01904446
T. Kovářík, P. Bělský, P. Novotný, J. Říha, J. Savková, R. Medlín, D. Rieger, P. Holba, Structural and physical changes of re-calcined metakaolin regarding its reactivity Construction and Building Materials. ,vol. 80, pp. 98- 104 ,(2015) , 10.1016/J.CONBUILDMAT.2014.12.062
Peter Duxson, Grant C. Lukey, Jannie S.J. van Deventer, The thermal evolution of metakaolin geopolymers: Part 2 – Phase stability and structural development Journal of Non-crystalline Solids. ,vol. 353, pp. 2186- 2200 ,(2007) , 10.1016/J.JNONCRYSOL.2007.02.050
E. Prud'homme, P. Michaud, E. Joussein, J.-M. Clacens, S. Rossignol, Role of alkaline cations and water content on geomaterial foams: Monitoring during formation Journal of Non-crystalline Solids. ,vol. 357, pp. 1270- 1278 ,(2011) , 10.1016/J.JNONCRYSOL.2010.12.030
Caijun Shi, A. Fernández Jiménez, Angel Palomo, New cements for the 21st century: The pursuit of an alternative to Portland cement Cement and Concrete Research. ,vol. 41, pp. 750- 763 ,(2011) , 10.1016/J.CEMCONRES.2011.03.016
Yaojun Zhang, Licai Liu, Fly ash-based geopolymer as a novel photocatalyst for degradation of dye from wastewater Particuology. ,vol. 11, pp. 353- 358 ,(2013) , 10.1016/J.PARTIC.2012.10.007
Qing Tang, Yuan-yuan Ge, Kai-tuo Wang, Yan He, Xue-min Cui, Preparation and characterization of porous metakaolin-based inorganic polymer spheres as an adsorbent Materials & Design. ,vol. 88, pp. 1244- 1249 ,(2015) , 10.1016/J.MATDES.2015.09.126
M. Srinivasula Reddy, P. Dinakar, B. Hanumantha Rao, A review of the influence of source material’s oxide composition on the compressive strength of geopolymer concrete Microporous and Mesoporous Materials. ,vol. 234, pp. 12- 23 ,(2016) , 10.1016/J.MICROMESO.2016.07.005
Yun-Ming Liew, Cheng-Yong Heah, Hussin Kamarudin, None, Structure and properties of clay-based geopolymer cements: A review Progress in Materials Science. ,vol. 83, pp. 595- 629 ,(2016) , 10.1016/J.PMATSCI.2016.08.002