1st of all you can not mix these two oxide materials by preparing separately as these oxide are not soluble as per my knowledge. However, the proposed composition is not correct i.e., MgZnO. You may chose different Mg-salts and Zn-salts to prepare 1:1 metal oxide composite via solution combustion method or you may choose other processes for the synthesis. I can suggest you the solution combustion method as in this process you don't need any elaborated instrumental setups and you can tune the composition as per your concern. For the solution combustion method you may look at the followings:
org/10.1016/j.envres.2022.114862, org/10.1007/s11356-022-22551-6, org/10.1016/j.jece.2020.103759, org/10.1016/j.jes.2019.09.004, org/10.1021/acsomega.9b00252, etc.
Sujan Shakya The material should have been prepared together and not separately. However, you could try mixing the powders and using magnetron sputtering. See attached.
The question refers to ZnO and MgO. In your extensive list of papers (it appears all co-authored by you) then either ZnO or MgO seem not to be present. Perhaps you can enlighten us which of your papers refers to ZnO or MgO?
What is the difference between MgZnO and MgZnFe2O4? I thought MgZnO can synthesize like MgZnFe2O4. I think both are metallic matrix compounds. So by reading the above articles, it can be easily integrated.
MgZnO can be created by a solid-state reaction between MgO and ZnO. This can be done by mixing the two powders together in a stoichiometric ratio and heating them in a furnace at a temperature of around 1000°C for several hours. The reaction is as follows:
MgO + ZnO → MgZnO
The resulting MgZnO powder can then be collected and used for various applications.