37 Questions 63 Answers 0 Followers
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 3,894 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 6,110 6 View
We know that carbon nanotubes are carcinogenic. Can we use it as drug delivery system?
19 December 2014 8,411 3 View
We know that now a days, the hollow core shell materials are popular due to their applications in drug delivery system. As they can separate molecules based on their pore size, can we call it...
13 December 2014 1,385 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 4,456 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 7,637 2 View
I assume that is it a reaction of methane with a nickel oxide-supported catalyst, over a fixed bed downflow reactor, where we can obtain carbon nanotubes as well as hydrogen.
15 October 2014 2,336 6 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 663 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 5,644 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 3,971 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 6,091 3 View
If you take radiation can cause cancer as well as used for anticancer treatment. This is in similar to the amines. I want to know what is the reason for this synergism.
27 August 2014 3,366 3 View
Nowadays Cerium containing metal oxides are popular in oxidation reactions. One reason for its importance is, it is new to the catalysis field. Other than that Is there any reason? It is known...
26 August 2014 5,679 5 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 3,316 3 View
Vanadium is not in Vanadyl form in Vanadium tetraisopoxide. But it is unstable. We have to protect it in special atmosphere. Do you know any other compound of such kind and how to increase its...
24 August 2014 6,718 1 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 8,103 10 View
Suppose if we support Platinum over molecular sieves, it dehydrogenates hydrocarbons first followed by protonation, isomerization and hydrogenation. What makes the Platinum dehydrogenate and same...
11 August 2014 695 1 View
It is learned that this is to avoid charging effect. We know that charging effect gives a blurred picture. But we want to know what is meant by charging effect?
07 August 2014 7,152 9 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 1,659 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 6,399 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 508 51 View
Zeolites are strongly acidic compared to silico aluminophosphates. I like to know the reason.
01 August 2014 5,694 3 View
Most of the photocatalytic compounds are derived from Titanium. What is the reason for this?
31 July 2014 1,352 5 View
To find out a particular solid is photocatalytic or not, the above energy band gap is useful.
29 July 2014 250 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 8,246 17 View
In case of precipitated silica formed through sol-gel method, are mostly spherical. The reason is not clear.
20 July 2014 2,050 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 5,208 1 View
Normally hetero nitrogen compounds are antimicrobial, nematicidal and anticancer properties. The reason is not clear.
16 July 2014 5,150 4 View
I guess Cr6+. However in practical, we using it more in laboratories. How to avoid it.
13 July 2014 2,460 23 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 1,724 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 1,346 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 1,084 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 1,264 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 743 7 View
Hydrogen peroxide is a mild oxidizing agent. Dye degradation needs high energy. That's why I have a doubt in this.
14 May 2014 511 3 View
I hope it is from the base peak width of the first peak of the pattern.
04 May 2014 2,516 1 View
If it is not, how can I measure it?
25 April 2014 1,275 6 View
