A novel micro-micro-mesoporous aluminosilicate LS-BFMZ （low-silica-BEA（beta）-faujasite （Y）-mesoporous） composite zeolite with the MCM-41 type structure was synthesized through a novel process involving the self-...A novel micro-micro-mesoporous aluminosilicate LS-BFMZ （low-silica-BEA（beta）-faujasite （Y）-mesoporous） composite zeolite with the MCM-41 type structure was synthesized through a novel process involving the self- assembly of CTAB surfactant micellae with silica-alumina source originated from alkaline treatment of the beta zeolite. The physical properties of the LS-BFMZ composite zeolite were characterized using various techniques, including XRD, IR and SEM techniques. Meanwhile, a possible mechanism regarding the formation of the LS-BFMZ composite zeolite was proposed.展开更多
The most used method for preparation of zeolites is hydrothermal synthesis from silicate or aluminosilicate gels at temperatures in the range of 60-200 ℃. Excess water used in the industrial process results in severa...The most used method for preparation of zeolites is hydrothermal synthesis from silicate or aluminosilicate gels at temperatures in the range of 60-200 ℃. Excess water used in the industrial process results in several issues, including high autogeneous pressure, low efficiency, pollution, etc. To solve these problems, several strategies have been developed. This review describes the solvent-free synthesis of zeolites. The combination of solvent-free synthesis and organotemplate-free synthesis can open the pathway to a highly sustainable zeolite synthesis protocol in industry.展开更多
基金supported by the 973 plan item under Grants(2003CB615802)
文摘A novel micro-micro-mesoporous aluminosilicate LS-BFMZ （low-silica-BEA（beta）-faujasite （Y）-mesoporous） composite zeolite with the MCM-41 type structure was synthesized through a novel process involving the self- assembly of CTAB surfactant micellae with silica-alumina source originated from alkaline treatment of the beta zeolite. The physical properties of the LS-BFMZ composite zeolite were characterized using various techniques, including XRD, IR and SEM techniques. Meanwhile, a possible mechanism regarding the formation of the LS-BFMZ composite zeolite was proposed.
基金supported by the National Natural Science Foundation of China(21273197,21333009,21203165)Fundamental Research Funds for the Central Universities(2013XZZX001)+1 种基金the National High Technology Research and Development Program of China(2013AA065301)the Science and Technology Innovative Team of Zhejiang Province(2012R10014-02)
文摘The most used method for preparation of zeolites is hydrothermal synthesis from silicate or aluminosilicate gels at temperatures in the range of 60-200 ℃. Excess water used in the industrial process results in several issues, including high autogeneous pressure, low efficiency, pollution, etc. To solve these problems, several strategies have been developed. This review describes the solvent-free synthesis of zeolites. The combination of solvent-free synthesis and organotemplate-free synthesis can open the pathway to a highly sustainable zeolite synthesis protocol in industry.
