The structural characterization of v _ 2o _ 5 compounds were measured bymeans of differential thermoanalysis ( dta ) and thermogravimetry ( tg ) , scanning electron microscopy ( sem ) , and x - ray diffraction ( xrd ) . the testsreveale that materials which were prepared by sol - gel ( inorganic sol gel andmelting - coling ) showed that the amorphous structure , and the interlayer spacingenlarge a lot than that of crystalline v _ 2o _ 5 采用热重与差热( tg - dta ) ，扫描电子显微镜( sem ) ， x射线衍射( xrd )等测试手段对材料的结构性能进行表征，结果显示两种溶胶-凝胶法(无机溶胶凝胶法和熔融淬冷法)制备的v _ 2o _ 5材料均为无定型结构，其层面间距均比晶体v _ 2o _ 5成倍增大。
Znf16pc molecules grow on quartz substrate in a stransky - krastanov model ; a fundamental layer is laid by strong interactions between quartz and f - atoms on znf16pc , on which an amorphous transition layer develops , finally an well ordered film is obtained , " card - packing " , " amorphous accumulation " and " brick - stacking " are adopted hi three different layers Znf _ ( 16 ) pc分子在石英衬底上的生长基本符合stransky - krastanov模型：通过f -原子与石英衬底的强相互作用形成奠基层，发展成无定型的过渡层，最后形成有序的结晶层。在这三个区域内分子分别采取“ card - packing ” 、 “ amorphousaccumulation ”和“ brick - stacking ”排列方式。
The radish red by the mustard family plant party loyalty radish after squeezing , filters , withdraws , the vacuum concentration , spray drying but , assumes the scarlet red indefinite powder , the easy absorption of moisture , after the absorption of moisture to form massive , but does not affect the use effect , the taste micro acid , is easy to dissolve in the water , does not dissolve in the absolute ethyl alcohol , serves as the food coloring , is suitable in the acidic drink , the luster bright , is transparent , general amount used 0 . 02gkg 萝卜红由十字花科植物红心萝卜经压榨、过滤、提取、真空浓缩、喷雾干燥而得，呈深红色无定型粉末，易吸潮，吸潮后结成块状，但不影响使用效果，味微酸，易溶于水，不溶于无水乙醇，用作食用色素，适用于酸性饮料，色泽鲜艳、透明、一般用量0
