UV measurement require the NPs to be well dispersed in the liquid. What kind of liquids/solvents must be used for the UV measurments such as Fe2O3.
Respected Sir, hopefully attached article will help in this regard
Dear Janah Zeb, Grateful for your reply.
In the article suggested by you, it is mention only as
"For both UV-Vis and photoluminescence measurements, spectra were recorded by dispersing equal amount of NPs prepared from different precursors in distilled water as solvent"
But no precise amount is mentioned.
What we have been doing so far,
specimens of 1 mg in 5 ml DIW and with further dilution during UV testing.
With this the UV spectra is not well observed.
Fe2O3 are soluble in water as magnetic particles settle down rapidly in Cuvette. After Ball milling or Thin-film can work.
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