I can repeat the pevious comment: from XRD you get infromation about the crystal structure (which is qualitative information, you can identify the crystalline phase(s) using reference data), on the amorphous/crystalline contetn and on the average size of the crystallites (line broadening).

X ray fluorescence gives qualitatve or semiquantitative information  about the elementary composition (main elements).

XRD - X-ray diffraction- typical technic for identification crystals structure (compounds), that based on the X-ray diffraction on the crystals plane. 

XRF - is the technic to detected the luminescence. It's like a PL (photoluminescence) , but the excitation realized for X-ray. In the other words, XRF is Luminescence under X-ray.

Conference Paper Experimental Results of Photoluminescence and Luminescence u...

I can repeat the pevious comment: from XRD you get infromation about the crystal structure (which is qualitative information, you can identify the crystalline phase(s) using reference data), on the amorphous/crystalline contetn and on the average size of the crystallites (line broadening).

X ray fluorescence gives qualitatve or semiquantitative information  about the elementary composition (main elements).

XRD give you information about crystal structure, while  the XRF uses to know the main elements.

XRD is used for phase identification, transition or evolution at both ambient and high temperatures on amorphous/crystalline materials (powder/ compact powder). It can be used to determine crystal structures fro rietveld analysis.

XRF is used primarily for elemental composition analysis. 

I understand, thank you all

Also, in the Russian language literature:

XRF - luminescence under X-ray irradiation. 

For the other hand, for characterization of the NP often uses XPS - X-ray photoelectron spectroscopy. 

XRL - luminescence of sample in the visible region under excitation of the X-rays

XRF is used primarily for elemental composition analysis. But is it possible to perform volumetric analysis based on the XRF results.

Hello,

I recommended you this link: https://www.911metallurgist.com/blog/difference-between-xrf-and-xrd

Dassekpo.

XRF (X-ray fluorescence) is a non-destructive analytical technique used to determine the elemental composition of materials. XRFanalyzers determine the chemistry of a sample by measuring the fluorescent (or secondary) X-ray emitted from a sample when it is excited by a primary X-ray source.

XRD (X-ray diffraction) is an analytical technique to determine crystalline phase, average crystalline size and d spacing.