Humayun Akhter

17 Questions 4 Answers 0 Followers

Questions related from Humayun Akhter

How can I maintain high pH while synthesizing nanoparticles using greenroute ?

bcoz pH affects the size of the nanoparticles.

01 January 2017 9,733 4 View

How to increase the boiling point and flash point of n-butanol by mixing it with Dietyhlene glycol?

given B.P of n butanol is 119 C and flash point of butanol is 80 C REQIRED B.P for butanol is 230 C and flash point required is 110 where as flash point of dietylene glycol is 145C and B.P of...

05 May 2016 6,855 8 View

How to prevent oxidation of copper nanoparticles synthesized from plant extract at room temp i.e how to dry the prepared sample at room temp?

I am not getting pure copper nanoparticles, rather copper oxide is more formed.

05 May 2016 4,658 5 View

How to prevent oxidation of copper nanoparticles synthesized from plant extract at room temp i.e how to dry the prepared sample at room temp?

bcoz copper nanoparticles often get oxidised even at room temp.

04 April 2016 4,309 1 View

How to control the different morphology of nanoparticles by using inorganic salt and plant extracts? What parameters should be considered?

becoz different morphology has different property

03 March 2016 2,910 2 View

For synthesis of copper nanoparticles from plant which precursor is good either copper sulphate or copper nitrate?

yield is very low in case of copper sulphate

02 February 2016 8,242 2 View

Any plant having antireductive property?

most of the plant have antioxidative property

02 February 2016 663 0 View

How should i take the uv visible of metal nanoparticles synhesize from plant extract just after mixing or after complete reaction and drying?

some paper reported taking just after mixing some reported after drying

02 February 2016 8,355 5 View

How to incubate the reaction mixture?

I am doing the synthesis of nanoparticles where papers report to incubate the reaction mixture for 12 hours at 60 degree C.

01 January 2016 4,737 0 View

How can I regulate the pH for the biological synthesis of nanoparticles from plants?

The pH of the medium affects the size and distribution of the nanoparticles. At low pH, coalescing occurs forming larger nanoparticles while at high pH value small nanoparticles are formed.

12 December 2015 4,248 5 View

How can I observe the effect of concentration of the substrate and reducing agent in biogenic synthesis of nanoparticles from plant?

It is reported that when higher concentrations of noble metal salts in comparison to the bio-reducing agents inhibit successful synthesis of the nanoparticles further it was reported that when...

12 December 2015 1,618 5 View

What is the process of taking permission from publishers of journal in order to take some characterization photograph for writing review ?

A review journal with some photograph clears idea of past research.

12 December 2015 3,002 0 View

Which is the best solvent to wash the nanoparticles synthesized from plants in order to get the pure nanoparticles without extract?

becoz i got the EDS results having only 16% copper nanoparticles and 76% carbon

09 September 2015 3,571 5 View

How can we know the miller indices or distance between two atoms in SAED pattern?

the result given to me doesn't have miller indices nor it has distance between two atoms......how to calculate crytallinity?

07 July 2015 6,430 0 View

This is my SAED image what to conclude from here?

it is copper nanoparticles

07 July 2015 5,976 3 View

Is there an alternative method to evaporate solvents besides using a rotary evaporator?

I have no facility of rotary evaporator

06 June 2015 3,177 5 View

Can any body suggest me nonpaid journals name of nanotechnology?

want to submit a review

01 January 2015 9,871 4 View