Ranjan Rai

4 Questions 3 Answers 0 Followers

Questions related from Ranjan Rai

How do i maintain the charge neutrality when doping my compound with aliovalent atom?

For example i want to dope Fe3+ with Co or Ni or Mn which are 2+ how do i balance the chemical equation to maintain the charge neutrality.

09 September 2018 4,061 2 View

How do i choose the excitation wavelength for studying the photo catalytic property of a material?May i use tungsten filament bulb for irradiating ?

For instance i have a material whose band gap is around 2 eV and i want to study its photocatalytic property by studying dye degradation .may i use filament bulb for irradiation or do i use...

08 August 2018 2,272 0 View

i wanted to study the photocatalytic property of a compound whose band gap is around 1.7 eV.My question is what would best dye to use ?

I tried with rhodamine B with irradiation source 50 W LED but could not observe any change in the UV-Vis spectrum for the sample taken out after interval of 1 hour each. even for sample irradiated...

08 August 2018 6,802 7 View

In sol gel reaction using citrate as chelating agent how do we fix the amount of citric acid ?

for example synthesis of BFO how do we fix the ratio of citric acid and metal salt.

07 July 2018 3,412 3 View