Photocalistic reduction of CO2 to hydrocarbon fuel using ternary metal oxide on graphene as a 2D platform

Photocalistic reduction of CO2 to hydrocarbon fuel using ternary metal oxide on graphene as a 2D platform.

IRN AP09260229

Objects of research - in 2021, the objects of research are nanocomposites based on NZVI / Porous materials for the reduction of Hg (II) to Hg (0) adsorbed on porous materials.

Aim of the project:

The aim of the research project is to synthesize reactive nanocomposites based on NZVI (Fe (0)) on a porous material substrate, and to develop a new wastewater treatment technology using nanocomposites for the safe and effective removal of toxic Hg (II) on (Hg (0)) from aqueous media.

Research methods:

Cold vapor atomic fluorescence spectroscopy (CVAFS), AAS with HS55A accessory, and direct mercury analyzer (DMA) were used to quantitatively analyze the reduction and removal of Hg (II) by In-ZVI particles. Elemental Hg in the gas phase, obtained from the headspace of the reactor at each sampling point, was adsorbed by a gold trap and quantitatively analyzed using CVAFS. Water samples for measuring Hg (II) concentration obtained at each sampling point were immediately treated with 0.4% HCl acid, then analyzed for DMA using a combustion process. Aqueous samples to measure the release of total Fe and In from the surface of In-ZVI particles after each repeated reaction cycle were converted with 2% nitric acid and analyzed using an inductively coupled plasma mass spectrometer (ICP-MS) (Agilent 7500ce).

Research results:

A literature review was carried out on the subject of the reduction of mercury Hg (II) to the elemental (or metallic) form. Bimetallic catalysts on a substrate ZSM-5, Beta zeolite, ZIF-8 and ZIF-67 have been successfully synthesized and characterized by the use of analytical instruments such as a scanning electron microscope (SEM) with an energy dispersive X-ray spectrometer, X-ray diffraction, Fourier transform infrared spectroscopy and thermogravimetric analyzer. In 2021, 3 scientific papers were published in the internationally rated peer-reviewed journals Current Opinion in Chemical Engineering, Catalysis Communication and Environmental Chemical Engineering with indexing in Elsevier with impact factors 5,163, 3.623 and 5.909 which occupy good places in the database on chemistry and chemical engineering and 1 article is currently pending publication in an internationally rated peer-reviewed journal indexed in Elsevier with an Impact Factor of 7.086.

Table 1 - Composition of the research group for scientific work