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Synthesis and Characterization of the Pb5(PxAs1-xO4)3Cl Solid Solutions

机译:Pb5(PxAs1-xO4)3Cl固溶体的合成与表征

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A series of the Pb5(PxAs1-xO4)3Cl solid solutions were directly prepared through aqueous precipitation method. The results of the elemental analysis, XRD, FT-IR and SEM characterization have confirmed the forming of the mimetite/pyromorphite solid solutions. The XRD analysis indicated that the end-member components of the solid solutions were well matched respectively to card #01-080-2103for mimetite and #00-019-0701 for pyromorphite, and their corresponding unit cell parameters. In FT-IR spectra, the stretching vibrational absorption band of AsO43- appeared around 788.71-820.00 cm-1 (¦Ã3), and the bending vibration absorption band was also visible at 418.00cm-1 (¦Ã4). In addition, no vibrations of AsO43- appeared at 1407.82 cm-1, 1563.44 cm-1and 1733.26 cm-1. There was a clear water peak of pyromorphite appeared at 3440.62 cm-1 and the anti symmetric stretching peak of PO43- appeared around 979.50-1050.05 cm-1(¦Ã3) and the symmetrical peak appeared around 540.08-575.53cm-1 (¦Ã4). Observed by SEM, the shape of crystals changed gradually from the fibrous, needle-like to the granular solid block as PO43- in the solids increased.
机译:通过水性沉淀法直接制备一系列PB5(PXAS1-XO4)3Cl固体溶液。元素分析,XRD,FT-IR和SEM表征的结果证实了模具矿石/致丙二酸酯固体溶液的形成。 XRD分析表明固体溶液的最终成员组分分别与吡咯岩和#00-019-0701的卡片#01-080-2103进行很好匹配,以及它们的相应单元电池参数。在FT-IR光谱中,ASO43的拉伸振动吸收带出现在788.71-820.00cm-1(||),并且在418.00cm-1(|施加)下也可见弯曲振动吸收带。此外,无振动ASO43-出现在1407.82cm-1,1563.44cm-1和1733.26cm-1时。吡咯斑块的透明水峰出现在3440.62cm-1,抗对称拉伸峰值呈现约979.50-1050.05cm-1(||),对称峰值出现在540.08-575.53cm-1(|左右) )。由SEM观察,晶体的形状从纤维,针状到颗粒固体嵌段逐渐变化为PO43-在固体中增加。

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