Shivani Sharma

21 Questions 13 Answers 0 Followers

Questions related from Shivani Sharma

How should I choose optimized pH value if the results for pH values ranging from 3-9 are same?

I have performed the optimization of pH ranging from 2-9 so that I can choose one pH value for subsequent experiments but the results pertaining to pH values from 3-9 are almost near.How do I...

03 March 2016 9,287 5 View

Can anyone explain what is actually compressive local stress in Raman spectra?

Attached file

02 February 2016 7,368 0 View

Adsorption of Pd(II) onto graphene oxide shows optimum pH at 6.0 but GO with quaternary ammonium salt shows optimum pH around 3-4. can anyone explain?

The adsorption of Pd(II) onto graphene oxide shows optimum pH at 6.0, whereas GO with quaternary ammonium salt shows optimum pH around 3-4. Attachment for graphene oxide on Pd(II)

01 January 2016 4,204 4 View

Can Akaike's Information Criterion be used for both linear and non linear model?

AIC is a statistical methodology to compare the isotherm models

12 December 2015 6,376 6 View

I have done silver nitrate test to remove bromine from my sample. EDX result is fine and not showing Br peak but in XPS I get Br . Why is it so?

The results are satisfied as per EDX as it is not giving Br peak. But XPS is showing 0.55% of Br....

12 December 2015 3,506 5 View

In interference studies to check the extraction of Pd(II), will the metal ions such as Hg(II) and Pt interfere along with Pd(II)? If yes/no. Why?

In interference studies to check the extraction of Pd(II), will the metal ions such as Hg(II) and Pt interfere along with Pd(II)?

12 December 2015 947 1 View

In raman spectra, after addition of metal ion to some graphitic material, will the intensity ratio of D to G bands increase or decrease?

What does the increased/decreased intensity of ID/IG imply?

12 December 2015 1,730 2 View

In interference studies to check the extraction of Pd(II), will the metal ions such as Hg(II) and Pt interfere along with Pd(II)? If yes/no. Why?

12 December 2015 1,416 1 View

Can anybody tell the formula for the % recovery of metal ions in adsorption process?

If i have found the concentration of the metal ion in the filterate . Now i want to check that how much % of the metal ion is recovered.

12 December 2015 8,862 3 View

Will H2PdCl4 and PdCl42- behave in a similar fashion for an adsorption study?

Actually I recovered palladium from a catalyst Pd/AC + 4HCl (aq) + H2O2 (aq) → H2PdCl4 (aq) + AC + 2H2O (i)l Now I wanted to know that whether as such I can use these palladium species for...

11 November 2014 3,961 3 View

In X-ray diffraction (XRD), how can we relate crystallinity index, crystallite size and particle size?

Crystallinity index= Max intensity-Min intensity/max intensity and Debye Scherrer equation, D=Kλ/β Cosθ

07 July 2014 811 7 View

What are the possible IR peaks in amberlite XAD 1180? And will there be any difference in the IR of XAD-4, XAD16 and others?

IR peaks of amberlite XAD-1180 resin

07 July 2014 4,589 1 View

Can somebody tell me that what may be the possible IR peaks in 2-mercaptobenzothiazole ?

Are S-H and N-H strechings ------both possible?

07 July 2014 2,862 3 View

Will the adsorbent prepared (material containing amine impregnated chitosan) be stable in acididc solution?

Actually chitosan can be dissolved in acidic solutions. And in general chitosan based sorbents when functionalized with cross-linking agents improves the acid stability.

06 June 2014 7,891 0 View

At what concentration of HCl, PdCl2 with HCl will form PdCl42-?

PdCl2 was taken with 0.2M HCl, will it form PdCl42-?

05 May 2014 2,936 1 View

What kind of impregnation can be done with aminated resin for metal ion removal?

Impregnation with aminated resin for metal ion removal and what kind of interactions are possible.

04 April 2014 3,618 2 View

What are the parameters on which particle size increases or decreases after adsorption?

If the particle size increases how can we conclude that the metal ion is adsorbed on the surface of adsorbent?

03 March 2014 2,760 6 View

What is the detection limit of Palladium in the human body?

Up to what limit can it tolerate?

03 March 2014 712 6 View

Can anyone tell me the formula for the recovery of Palladium after it is leached out from spent catalyst?

% of palladium recovered from catalyst

03 March 2014 5,857 1 View

Why when I am impregnating resin with ionic liquid and using it further for adsorption, is it floating on the surface?

Does it depend on the type of solvent which we are using during impregnation?

03 March 2014 7,411 5 View

How could I leach palladium from a tetrakistriphenylphosphinepalladium(0) catalyst and for triphenylphosphinepalladium (II)dichloride?

What type of digestion process is used?

03 March 2014 6,895 5 View