نتایج جستجو برای: molecular sieve
تعداد نتایج: 638777 فیلتر نتایج به سال:
A novel 3D metal-organic framework (MOF) with 2D rhombic channels was synthesized for selective adsorption of p-xylene from xylene isomers by acting as a molecular sieve.
Secondary aluminum dross as a solid waste can cause great harm to environment. However, it contains rich alumina oxide which is an ideal raw material for the preparation of molecular sieve. Therefore, optimal process was explored 4A sieve using secondary source and additional silicon source. The results show that prepared under conditions silicon/aluminum 2.0, crystallization temperature 95 °C ...
A Ag/TiO2 nanocomposite, in which silver nanoparticles are highly dispersed in the uniformly sized pores of a cubic mesoporous TiO2 molecular-sieve film, has been fabricated.
The phloem performs essential systemic functions in tracheophytes, yet little is known about its molecular genetic specification. Here we show that application of the peptide ligand CLAVATA3/embryo surrounding region 45 (CLE45) specifically inhibits specification of protophloem in Arabidopsis roots by locking the sieve element precursor cell in its preceding developmental state. CLE45 treatment...
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