Hydrothermal synthesis of titanosilicate type zeolitic layered PLS-1 and CDS-1 molecular sieve with CDO topology
Hydrothermal synthesis of titanosilicate type zeolitic layered PLS-1 and CDS-1 molecular sieve with CDO topology
复制标题
DOI：
10.1007/s10934-016-0253-5
复制
发表时间：
2017-02
影响因子：
2.6
通讯作者：
Tomoyuki Murase;K. Komura
中科院分区：
文献类型：
--
作者：
Tomoyuki Murase;K. Komura
相应的层状钛硅酸盐分子筛可通过层间硅醇脱水缩合反应合成具有CDO拓扑结构的硅酸钛分子筛([Ti]CDS-1)。采用水热合成法，以酸化钾锰矿、四异丙氧钛(Ti(OIPR)4)、少量过氧化氢(H_2O_2)、四甲基氢氧化铵(TMAOH)和水(H_2O)为原料，成功地合成了前驱体[Ti]PLS-1。用粉末X射线衍射仪、热重-差热分析、氮气吸附、固体核磁共振和紫外可见光谱对样品进行了表征。以过氧化氢为氧化剂，考察了端烯的进一步氧化反应。
The titanosilicate type CDS-1 zeolite ([Ti]CDS-1) with CDO topology can be prepared from the corresponding zeolitic layered titanosilicate [Ti]PLS-1 via dehydrative condensation of interlayers’Q3silanols. The precursor [Ti]PLS-1 is successfully synthesized from the mixture of an acidified kanemite, titanium tetraisopropoxide (Ti(OiPr)4), a small amount of hydrogen peroxide (H2O2), tetramethylammonium hydroxide (TMAOH) and water (H2O) under hydrothermal synthesis. The obtained samples were characterized by powder-XRD, TG–DTA, N2adsorption, solid state NMR and UV–Vis analyses. Further oxidation reaction of terminal alkenes was examined by using H2O2as an oxidant.