Vijayarangamuthu Kalimuthu

9 Questions 19 Answers 0 Followers

Questions related from Vijayarangamuthu Kalimuthu

What causes this abnormal phenomenon in a staggered hetrojunction, i.e., enhancement in photocatalytic with increase in photoluminescence intensity?

What is the reason for increase in photocatalytic property with increasing in the PL intensity for a heterogeneous material, i.e., ZnO mixed with transition metal chalcogenides compared to pure...

02 June 2018 7,223 2 View

Can we use basic 5 and 1/2 digital multimeter for gas sensing testing?

Which is good for gas sensing testing of metal oxide. Can 5 and 1/2 digital multimeter is sufficient for testing or do we need higher resolution digital multimeter. If so which company is good for...

25 May 2018 622 3 View

What Quality or Grade of KBr is need for recording FT-IR of metal oxide samples?

Is it mandatory to use IR grade KBr for FT-IR. What will be difference if I use anhydrous KBr. Please compare these two products and suggest something. Since IR grade KBr expansive, I like to use...

14 December 2017 4,965 3 View

How to do photocatalytic degradation of dye experiment using hydrophobic powder sample?

How to do photocatalytic degradation of dye experiment using hydrophobic powder sample. Issue here is that hydrophobic powder start floating on the surface of the aqueous dye solution. which...

12 December 2017 6,803 3 View

How do I clean the quartz tube used for CVD synthesis of graphene?

How to clean the quartz tube used for CVD synthesis of graphene. The quartz tube was coated with copper that got deposited during graphene growth. Suggestion needed on chemical solvent which is...

14 September 2015 7,123 6 View

Has anyone any advice on how to synthesize high quality of graphene?

Here I attached the optical image of single layer graphene. I always use to get some fractals or structure (dark colour in picture) in my sample. If someone could tell me what is it and how can I...

02 July 2014 3,121 4 View

Can someone provide a procedure for cleaning copper for CVD graphene growth?

I need a complete procedure for making single layer graphene using CVD and copper foil (25 um thickness). Particularly concentration of solution used for cleaning like acetic acid or HCl etc

29 April 2014 8,816 11 View

Can anybody help me draw graphene and graphene oxide using ACD/Chemsketch?

I need a raw file for graphene and graphene oxide, and need to place oxygen in a vertical position with respect to the carbon base.

16 December 2013 682 3 View

What is ratio of both PMMA (Polymethyl methacrylate) and anisole for making PMMA resin used for coating on graphene surface?

PMMA for covering graphene to etching copper, something like 950 PMMA A4 from Micro-Chem

12 November 2013 6,966 1 View