Is an increase bandgap of 3.45 eV Ag doped ZnO good or bad for photocatalytic effect?

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Sujoy Sarkar

Band gap (eV) = 1240 / lambda max (wavelength in nm)

Vignesh Kumar Thoomatti Haridass

Dear Sujoy sir

I want to calculate tauc's plot concept not planck concept. Please tell me how i find taucs plot to put in my value

An extrapolation in the Tauc plot {(ahv)1/m vs hv } touches the X-axis at which point, determines the band gap of the material.

Check the image for an example.

Dear Sujoy

So may i do for catalyst in all absorbance wavelength convert to Plancks constant vs 1/m .