The refractive index and absorption values of carbon nanotubes (MWCNTs)?

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Babak Rezaei

The refractive index of MWCNTs is 2.5 and its absorption is around 1. actually in literature scientists have used similar numbers for CNT and Graphene.

Titus Sobisch

Dear Babak,

do you have a source? For which wavelength?

S. Al Aani

Many thanks for all of you..... I am using 2.47 RI and 0.99 absorption value which are quite similar to those suggested by Babak.

Sayan Kundu

how can we quantify carboxylic acid on carbon nano sphere by zeta potential calculatuion

this absolutely has nothing to do with optical properties, start a new question

Dear Sayan Kundu ,

As Titus mentioned, zeta has nothing to do with quantifying the carboxylic groups. it can help you to determine the stability of your samples after carboxilation. My advise is to go for TGA analysis, it might give you some indications. I have attached a paper that will definitely answer many of your queries.

Best,

Article Fabrication of antibacterial mixed matrix nanocomposite memb...

Kah Chun Ho

Dear Sayan Kundu , attached paper reviewed various techniques including TEM, XPS, IR and Raman spectroscopy, chemical derivatization, Boehm titrations, ELCS, NEXAFS, TPD, and TGA that used to explore the chemical and structural characteristics of CNT. Hope it helps.

Article Chemical and structural characterization of carbon nanotube ...

Thanks kahi chun Ho