Are there any compounds that can cause activation of sole H2O2 under visible light?

More Amal Abdelhaleem's questions See All

What is the possible mechanism for decay of organic pollutants under sole PMS/dark process?

Dear All Please, I have an inquiry concerning PMS/dark process for degradation of organic pollutants. I noticed that the PMS/dark process can work for degradation of my pollutant at specific pH...

03 April 2018 8,581 13 View

What is the possible mechanism for PMS activation under dark with NaoH at pH=10?

Dear All I found that my pollutant can be degraded at pH=10 (pH adjusted by NaOH) under PMS/dark process. Please, what are the possible reasons to justify this phenomenon. Apart from base...

03 April 2018 6,348 4 View

What is the reason for the low activity of Fe(III) impregnated TiO2 compared to sole TiO2 under visible light?

Dear All Please, What is the reason for the low activity of Fe(III) impregnated TiO2 compared to sole TiO2 under visible light. Although the Fe(III) impregnated TiO2 led to a high shift in the...

09 October 2017 3,443 0 View

Why the acid is added during preparation of Fe-doped TiO2 using impregnation method?

Dear All Please, what is the reason behind the addition of acid during the preparation of Fe-doped TiO2 using impregnation method? I did not add acid during preparation, but the catalyst changes...

07 August 2017 2,121 6 View

What is the reason for activation of metal free catalysts in the presence of Peroxymonosulfate at alkaline pH 9.3?

Dear All What are the possible reasons for activation of metal free catalysts in the presence of PMS at alkaline pH 9.3. Although the catalyst will be negatively charged and the pollutant is...

02 March 2017 9,107 5 View

How to synthesize MnFe2O4/N doped TiO2 using sonochemical method?

Dear All Please, Can you provide me with a good reference for preparation of MnFe2O4(core)/N doped TiO2 (shell) using sonochemical method. I bought MnFe2O4 as a commercial material (60 nm) and i...

11 December 2016 9,132 0 View

How to synthesize MnFe2O4/N doped TiO2 Core shell using sol gel method?

Dear All Please, Can you provide me with a good reference for preparation of MnFe2O4/N doped TiO2 Core shell using sol gel method. Regards,

10 November 2016 6,077 0 View

Can I measure sulfate radicals using dimethyl sulfoxide ?

Dear All I want to measure sulfate radicals concentration using dimethyl sulfoxide. Please, can you provide me with a reference for measurement of sulfate radicals using dimethylsulfoxide. Regards,

10 November 2016 431 5 View

What is the concentration of salisylic acid for hydroxyl radicals measurement?

Dear All Please, i want to measure hydroxyl radicals generated during photocatalytic reaction using salicylic acid. Please, what is the suitable concentration of salisylic or it depends on the...

09 October 2016 4,421 1 View

How to dissolve ammonium tungstate in sol gel method?

Dear All I tried to dissolve about 0.03 g of ammonium tungstate in a mixture 30 mL of ethanol, 2.3 mL of CH3COOH, 0.74 mL of HCl and 3.5 mL of TBOT by stirring for 2 hrs, but i found that it does...

09 October 2016 7,732 1 View

Controlling for pupil light reflex when analyzing pupil size time course?

I used eye tracking to examine how participants from two different populations (A and B) react to an image. Participants in population A exhibit larger pupil sizes over time, but they also have...

10 August 2024 3,226 0 View

How to prepare the nanoparticle treated fungal sample for Environmental SEM analysis?

A fungal strain was treated with nanoparticles. We want to do an environmental SEM analysis. So could anyone share your views on preparing the sample? Thank you.

07 August 2024 5,307 1 View

Why activated CAR-Jurkat cell could not kill targets?

Previously when I co-coluture anti-CD19(FMC63) CAR-Jurkat with Raji with E:T=5:1, Jurkat can eliminate Raji in 24h. However, when I test another CAR construct, although I can dectect totally CD69...

06 August 2024 639 2 View

Could dyes amplify the spectrum of light to a specific wavelength?

I am interested to know the behavior of dyes toward light. Specifically, Blue dyes re-emit the spectrum, especially from the green zone (known as principal in LED lamps, and blue dyes are known...

05 August 2024 3,289 1 View

How to Add Missing Water Molecules in Protein-Membrane Simulations?

I have protein-membrane simulations (PDB, PSF, DCD) and have noticed that water molecules near the protein are not visible in the simulations. How can I fix this issue? Is there a way to place the...

04 August 2024 1,200 2 View

Why results of ROS flurescence are negative as there was no bacteria within?

Hello. I am working on ROS production of two systems: system A is cerium oxide and hydrogen peroxide, system B is cerium oxide nanoparticle, hydrogen peroxide and potassium bromide. I did some...

04 August 2024 5,973 3 View

Is someone interested in testing some of our new Alluaudite compounds (Molybdate) in the fields of heterogeneous catalysis and photocatalysis?

We have an original Alluaudite-Molybdate we want to test for catalysis and photocatalysis applications.

04 August 2024 2,261 1 View

How to Transform my handy-wavy explanation of why group I/II metals oxides in aqueous solution are basic into a rigorous argument?

I heard an explanation about something being a better proton acceptor or lone pair donor but that doesn't make sense. I couldn't explain in in terms of acid-base theory. The hand-waving way I saw...

03 August 2024 9,917 0 View

How can I find access to heavy metal reference doses from the EPA and WHO websites?

Reference dose and Maximum acceptable concentrations HMs

03 August 2024 8,229 4 View

Z-average size from Dynamic Light scattering can it be lower than the original probe size?

Hi everyone, Recently I have been conducting Dynamic Light scattering experiments in a micellar solution at 5 and gel at 37 degrees of Celsius with latex particles of diameter 190-500 nm. While...

01 August 2024 1,166 4 View