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Questions related from Alaa Abdelaziz
what is the best method could use to get a well-defined network to appear in SEM as I have prepared before and actually gave a good application in swelling and absorbance butt with low...
15 March 2017 3,456 1 View
I need to prepare about 1 kilo of nano alumina and sol gel method is not effective and get low yield. Is there another way to get high yield with least available amount of precursors?
26 May 2014 2,112 3 View
Is it via increasing stirring time or an increase in conc.? Of reducing agent to confirm reducing of graphene oxide and deposit of zno on it or what ?
05 April 2014 1,575 0 View
How could I calculate the molarity of a composite e.g ZnO-graphene using M.wt or is there another weight?
05 April 2014 3,133 0 View
And which precursors should I start with? It could be aluminum isopropoxide or aluminum chloride?
30 November 2013 4,606 0 View
If not what is the standard amount one should start with PVP, e.g. for 1 gm AgNo3, to prevent having excess of PVP?
27 May 2013 3,744 5 View
I have a problem when I prepare ZnO or Tio2: it gives a faint yellow after drying. However, it was white through washing. Then, when I grind it, it turns into white. I wonder if real color of...
29 April 2013 7,745 3 View
Could alumina show catalytic effect on dyes? Could it be put on graphene to make a composite and enhance the catalytic effect? If so, which one is better; alumina or silica? Are there any papers...
29 April 2013 3,631 1 View
Does anyone know how to control the size of nano alumina to get 50nm and 100nm particles? Which factors do we need to fix: temperature, rate of addition or PH? Is there any way to get a high yield...
14 April 2013 4,021 7 View
