Giovanni Zummo

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Questions related from Giovanni Zummo

Adsorption of carboxylic acid on TiO2 (anatase) Nps surface, physisorption or chemisorption ?

I run an experiment to test the dispersing property of oxalic acid on TiO2 (anatase) colloids, only by mixting the carboxylic aqueous solution with the titania colloid. My results showed that a...

09 May 2024 4,729 0 View

Dynamic light scattering: Volume plot shows one peak, while intensity plot shows two peaks. How can I quantify the two different size distributions?

I measured by DLS the size of a TiO2 nanoparticles suspension sample to compare the results against a TEM measurement (5-6nm). As I expected I got different results from the two experiments due to...

25 May 2023 7,628 8 View

Ksp in aprotic polar solvent , any idea?

I was looking at an effect of solubity of PbI2 when it's mixed with AVA (aminovaleric acid) and CH3NH3I (methylammonium iodide) in DMS . Provided that PbI2 has its own Ksp in water at 25 °C . How...

12 May 2018 2,964 2 View

STA on TiO2 polycrystalline nanopowder?

I am having some trouble in finding a percentange of amorphous in TiO2 nanopowder 3/5 nm in size. I have already run a XRD experiment which has shown a high match with anatase phase. In my...

20 February 2018 4,515 5 View