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Questions related from N. Venkatathri
Actually by time, some of the research results are become out dated. What is the future of such publications dealing with them. Also some of the publications are only available as hard copy. ...
23 May 2017 3,854 2 View
I assume that the first peak base width will give the pore width of zeolites. Mostly we are getting the information regarding the pore size of zeolite from the first peak position. Of course...
11 July 2015 6,069 6 View
We know that carbon nanotubes are carcinogenic. Can we use it as drug delivery system?
19 December 2014 8,372 3 View
Normally absorption or emission of ultraviolet visible light occur in the same region. If bathochromic or hypsochromic shift occurs it should go to other regions. Normally we are not observing...
07 December 2014 4,417 2 View
We know that Mn and Cr ion concentrations can be measured simultaneously using spectrophotometry and modified Beer-Lambert's law. Can we do the same thing with triple metal ions. What are the...
29 November 2014 7,594 2 View
Normally polymers are inert. But some of the polymers are known to be conductive. How are they prepared? Are they metal topped polymers?
25 September 2014 616 10 View
It is known that temperary Hardness can be removed thermal treatment. It is due to the presence of Calcium, Megnesium, carbonate and bicarbonate ions. Same way Permanent hardness is due to the...
09 September 2014 5,603 6 View
It is known that Guiacol (2-methoxy phenol) is a major content of Bio-diesel. It is hydrogenated for further processing. In that we can use Ni-Mo containing mesoporous catalyst. The pore width...
08 September 2014 3,925 3 View
It known that amines are useful as a template in zeolite crystallization. It is assumed that the electron density around Nitrogen play a vital role. If it is so electron rich compounds like...
01 September 2014 6,046 3 View
Suppose if you take a drug carrier like Hollow silica, will be due to hydrophobic attraction. Same thing in stomach juices, How is get delivered. What is the property of stomach juices made the...
25 August 2014 3,274 3 View
Now a days bio-diesel is becoming popular. It is prepared from a particular plant. I am interested to know its octane number compared to fossil fuels.
17 August 2014 8,044 10 View
Temperary hardness of water can be removed by single distillation. Organic impurities can be removed by double distillation using basic potassium permanganate mixture. I have a question that...
06 August 2014 1,623 3 View
It is known that aluminium and iron can be removed by treating the solution with alum or Ferric chloride. In same way chromium is a pollutant from tanneries. Is it possible to remove it through...
05 August 2014 6,362 4 View
In Absorption UV-Visible spectroscopy, the absorption is proportional to concentration according to Beer Lambert's law. However, this is not followed in higher and low concentration of a...
04 August 2014 372 51 View
Zeolites are strongly acidic compared to silico aluminophosphates. I like to know the reason.
01 August 2014 5,655 3 View
To find out a particular solid is photocatalytic or not, the above energy band gap is useful.
29 July 2014 210 8 View
Low angle powder x-ray diffraction analysis is useful to analyze the mesoporous materials like MCM-41, SBA-15 etc. However these analysis are higher to 0.8 degree (two theta). If we analyse...
26 July 2014 8,206 17 View
In case of precipitated silica formed through sol-gel method, are mostly spherical. The reason is not clear.
20 July 2014 2,003 5 View
Recently we have synthesized nano fiberous zeolites. It is known that zeolitic materials are useful as catalysts, ion exchangers and adsorbents. However I want to know the special applications...
17 July 2014 5,156 1 View
Normally hetero nitrogen compounds are antimicrobial, nematicidal and anticancer properties. The reason is not clear.
16 July 2014 5,112 4 View
Normally we also use to estimate the pore width from XRD first peak position. If it is so, in some layered materials and thermally unstable materials are having peak at lower two theta. How do...
15 June 2014 1,683 5 View
These ion are often used in zeolite chemistry. If we know their atomic radii it will help us to understand its molecular structure.
24 May 2014 1,297 7 View
Normally we are using KBr pellet or nujol paste for FT-IR analysis of solid samples. Two strong peaks are appearing for Nujol paste around 1400-2000 cm-1. Where will we get peaks for KBr pellet?...
20 May 2014 1,024 4 View
Transmission electron micrograph can visualize the particle up to nano scale. If there is particle size lesser than that, how can we identify it? I think one way is to increase the power of...
19 May 2014 1,220 7 View
It is known that sunlight has all the visible lights and cosmic rays (probably gamma rays), but what about the other wavelengths? If they are available, can one filter it and use it for spectroscopy?
15 May 2014 677 7 View
