Ramin Nasiri

7 Questions 18 Answers 0 Followers

Questions related from Ramin Nasiri

Hi, How do I dissolve polyvinyl alcohol in cold water?

I bought some China Polyvinyl Alcohol Pva Bp-24 that does not dissolve in cold water. How to modified it to solve it in cold water (At the lowest cost)?

26 September 2019 8,722 12 View

What means of photosensitizers parameter in the photocatalytic studies? is H2O2 a photosensitizer?

I want to study photodegradation of some dyes in aqueous solution by F-TiO2 under Visible Light

09 June 2018 4,935 4 View

Why is there a decreased in the XRD patterns from 5 to 20 degree for Fe3O4 ?

Fe3O4 nanoparticles were synthesized by a facile ultrasound assisted technique. FeCl3. 6H2O , FeCl2. 4H2O and NH3. XRD pattern of Fe3O4 nanoparticles. Red lines indicates the stick pattern of...

08 May 2018 3,599 3 View

Why the absorption band edge of tio2/cnts nanocomposites shift towards red light in DRS? Please explain

Mixing of SWCNT and MWCNT with TiO2 and doping F into TiO2 cause an extension of the absorption towards the red shift in the spectra. This extension for F-TiO2, F-TiO2/MWCNT and F-TiO2/SWCNT on...

14 May 2017 1,603 5 View

Who can mention the possible justification for enhancing the MG dye photodegradation with increasing in weight ratio of CNT to TiO2 from 1% to 10% ?

The results of the photodegradation activity measurement demonstrated that increasing in weight ratio of MWCNT and SWCNT to TiO2 from 1% to 10% , enhanced the MG photodegradation.

14 May 2017 504 2 View

Who can explain the mechanism of synergistic effect of ultrasound and irradiation in photodegradation of dyes?

F-TiO2/SWCNT hybrid have better sonophotocatalytic and photocatalytic activity than F-TiO2/MWCNT and F-TiO2 for degradation of malachite green under visible light irradiation.

14 May 2017 276 4 View

What is the color of polyaniline in acidic, neutral and basic condition?

in paratoluenesulfonic acid

12 July 2015 453 12 View