What happens when silver nanoparticles (Aggregate of Ag0) are released into the environment? Can it be change into the Ag3+ or remain as same (Ag0)?

I have synthesized silver nanoparticles form green route. While washing the glassware, the nanoparticle are released which must be entering into the environment. I want to know that is there any...

31 December 2018 1,876 14 View

What are the components of a sensor? How it works?

Hello, This is Dr. Vijay, I am want to design a sensor for different heavy metal ions. I want to know the basic idea behind it. Thank you.

11 December 2018 4,926 0 View

Why the gold nanoparticles synthesized from leaf extract get negatively charged?

I have synthesized gold nanoparticles from aqueous leaf extract of Croton bonplandianum. The zeta potential result showed it is negatively charged. Please explain the exact reason of this...

05 June 2018 4,222 9 View

How can I calculate the concentration of gold nanoparticles in suspension ?

Hello all,I have synthesized the AuNPs using 1.2 mM auric chloride salt. How can I know its concentration in suspension form?

06 July 2017 3,837 5 View

Why the size and anisotropic nature of the green synthesized AuNPs increased with the increase in metal ion concentration?

The green synthesis of gold nanoparticles was investigated using different metal ion concentration at a fixed inoculum dose and reaction incubation time. It was observed that the size of the...

11 December 2016 813 8 View

What should I write in discussion about the 2D, 3D and average roughness profile of nanoparticles?

09 October 2016 8,193 2 View

Which standard additional technique should be applied for the determination of Iron (III) in terms of validation?

The colorimetric detection of Iron (III) was carried out using AgNPs synthesized by plant extract. Different concentrations of Iron (III) were added into 1 mL solution of AgNPs and the change in...

08 September 2016 6,606 5 View

Why the peak of rGO did not appear in the XRD spectra of Ag-rGO-PANI?

The composite of Ag-rGO-PANI was prepared and characterized through XRD technique. When the XRD spectra of rGO and PANI were taken separately, a characteristic band appeared but these did not...

08 September 2016 7,268 7 View

What differences could be seen in pre and post annealed nanoparticles when characterized through XRD ?

I have synthesized the AgNPs using plant extract and annealed it at 300 degree Celsius. The pre annealed sample was also characterized by XRDNow what differences could be seen?

05 June 2016 3,424 16 View

Why hydrogen peroxide get decomposed into H2O and O2 at higher pH rather OH radical? and why it decomposed into two OH radical at lower pH?

I am investigating the peroxidase like activity of green synthesized gold nanoparticles. While optimizing the pH it was observed that the peroxidase like activity of the gold nanoparticles was...

01 January 1970 9,550 0 View

How to quantify carbon deposition on CuZnAl catalyst?

Dear All, I want to quantify carbon deposition on the surface of the CuZnAl catalyst. I have tried thermogravimetric analysis, but I've got weight gain as the active Cu- get oxidised. Does anyone...

01 March 2021 1,907 3 View

Why Trivalent chromium start precipitating above PH 5 ? Moreover discuss difference between adsorption of chromium and precipitation of chromium ?

I am a student of MS Environmental Engineering and started my research phase. I am working on metal removal ( chromium iii ) by using activated carbon prepared from the agricultural feedstock. So...

01 March 2021 5,475 2 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

How can I assign a velocity along one direction to CO2 molecules in a molecular dynamics simulation using GROMACS?

Dear all, I am trying to perform a MD simulation about the interaction between CO2 and a polymer. I create my model, solvate it and perform the NVT and NPT equilibration. Now I am not able to...

26 February 2021 10,014 3 View

CGA 300 Regulator for CO2 cylinder?

Has anyone ever tried to deliver CO2 with a CGA 300 regulator? I know that a CGA 320 regulator is standard for CO2. The issue is that I currently do not have any free CGA 320 regulators. I also...

25 February 2021 3,292 3 View

Multi effect distillation modeling in EES?

Dear colleagues If anyone has a model of multi-effect distillation in EES or MATLAB software, please send it to me.

24 February 2021 7,282 1 View

What are the methods used for CNT..?

Respected Professor's i hope you are doing well and happy. i need some information about carbon Nanotubes. before blending the CNT with the matrix the CNT has been introducing in some treatments....

24 February 2021 5,383 5 View

How to clean up TEM grid with plasma cleaner?

I need to clean the hydrocarbon contamination on the carbon substrate of TEM grid. However, I heard that substrate could be broken by the powerful plasma. My substrate is pure carbon, with ~3nm,...

23 February 2021 3,262 5 View

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23 February 2021 4,014 3 View