In an effort to better understand the oreintation and interaction of Fe, P, and Si EDS mapping, Figure g, was recorded. In general all materials show uniform distribution of Fe, P, and Si. At this scale, the morphology of the Fe-SBA-15 can be observed. Samples with high Fe content, x-C and x-D display the archetypical ropelike particle silhouette. Samples low in Fe, A and B, tend to consist of particles shaped as random polygons. Each sample shows Fe and P correlated directly to Si reinforcing our claim that iron phosphate domain present exist within the SBA-15 framework. All samples exhibit more intense P spectr in comparison to Fe. Additionaly, Fe spectrum intensity increases from A to D mirroring the trend observed by ICP-AES. Likewise, an expected direct correlation between the sharpness and intensity of iron phosphate phases observed in XRD and increasing Fe and P content is displayed. The Fe content caluculated from EDS disagrees with that of ICP, however EDS is a surface sensitive technique, indicating that the surface of the Fe-SBA-15 prepared is Fe difficient.