I want to prepare a nano-iron particle for surface modification with positively charge or negatively charge.
Hello Sunny Cheung, The production of iron particles of magnitude 70-100nm and 50-70emu/g can be realized by volumetric or filamentary steel erosion. Due to the different particle size distribution after erosion, it will be necessary to use a screen to select the desired particle size. Wishing for success in scientific research Emil Yankov
In my opinion for synthesizing iron oxide (or any types of nanomaterials) first you need to know about the different parameters and chemicals, which could have effect on the morphology of your products. For example I've already synthesized Fe2O3 NPs and in my work one of the chemicals that I used, was Urea. After some observation I realized that the amount of Urea could affect the size, morphology, and therefore magnetic properties of the Fe2O3 NPs product! Here I share the papers:
Article Altering the structure and properties of iron oxide nanopart...
Article Shape-Dependent Magnetic Properties and Phase Transformation...
So first find your synthesizing method and check the chemicals that you are going to use.
Good luck with your research!
Samira
I think you must check the relation, whether it is satisfied for your conditions or not:
Msn = Msb[1 − (β/D)]
Msn, Msb are the saturation magnetization of nano and bulk materials respectively, and β is a constant.
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