Huang Wang

15 Questions 25 Answers 0 Followers

Questions related from Huang Wang

Can anyone tell me the reason of lower and higher turnover frequency values?

Can anyone tell me the reason of lower and higher turnover frequency values? In my case, I found that Standard P25 have higher photocatalytic activity than my sample (also TiO2 in the form of...

18 July 2016 8,801 4 View

Can anyone tell me what the molecular radius of TiO2 is?

Thanks in advance for your replies.

27 March 2015 2,121 4 View

How can I find out the graph between degradation rate constant and time?

Can anyone explain how to find out the graph between degradation rate constant (k) and temperature with the equation C=C0e-kt?,

12 March 2015 8,997 4 View

What may be the possible reasons of decrease in crystallite size at higher temperatures?

what may be the possible reasons of decrease in crystallite size at higher temperatures? I prepared TiO2 nanoparticles by sol-gel method and calcined at different temperatures but first its...

28 January 2015 8,407 21 View

Can the photocatalytic activity decrease in the dark beyond 100%?

Can the photocatalytic activity decrease in the dark beyond 100%? I mean the organic pollutant has its absorption peak 100% and after adding catalyst absorption peak become higher than 100%. is it...

26 December 2014 6,759 2 View

Does the stability of TiO2 catalyst decrease with the passage of time?

does the stability of TiO2 catalyst decreases with the passage of time? if yes then what is the reason. thanks

11 December 2014 850 12 View

Are crystallite size and particle size are the same?

Are crystallite size and particle size are the same? If not, then how can particle size be calculated from XRD data?

25 November 2014 5,917 12 View

How can I find out the turnover frequency (TOF) of TiO2 photocatalyst with methyl orange dye?

How can find out the turnover frequency (TOF) of TiO2 photocatalyst with methyl orange dye?

24 November 2014 3,868 6 View

How can I find out the surface area by XRD determined crystallite size of the two phases TiO2 ?

how i can find out the surface area by XRD determined crystallite size of the two phases TiO2 ? please help me in this regard. Thanks

05 November 2014 6,324 12 View

Which material is good for electrospinning as a source of TiO2 to get nanofibers?

See above

22 May 2014 5,787 7 View

Why is TiO2 considered a promising material rather than other semiconductors?

Like WO3, SrTiO3, alpha-Fe2O3, ZnO and ZnS for the environmental remediation?

24 April 2014 9,039 4 View

Does Sonication affect the activity of nanofiber?

Did sonication affect reactivity? I have to sonicate in the dye solution to check the photo catalytic activity of nanofiber. Is there any possible method to have photocatalytic activity of the...

18 April 2014 8,807 1 View

Can a single sheet of graphene be seen by TEM?

Can a single sheet of graphene be seen by TEM? Is there any reference which makes sure that it can be seen? Or is it difficult to get the single sheet of graphene?

19 March 2014 2,567 4 View

Can we use any dye to test photocatalytic activity or does it depends on what kind of material used in the preparation?

11 March 2014 2,909 5 View

Can anyone tell that the bandgap of TiO2 is high, why is the recombination rate of e-h high in it?

Band gap of TiO2 is high and it absorb the UV light, and used in PV as well in Photocatalysts. Why is the recombination rate high in this?

25 December 2013 6,852 1 View