DOI: 10.5281/zenodo.18232111
title: Dataset for article Demonstrating the potential of versatile single-crystal spinel magnetic CoFe₂O₄-Ti₃C₂Tₓ MXene-based hybrid platforms for multifaceted nano-level separations in gas and liquid phases

description: ____________________Dataset for article Demonstrating the potential of versatile single-crystal spinel magnetic CoFe₂O₄-Ti₃C₂Tₓ MXene-based hybrid platforms for multifaceted nano-level separations in gas and liquid phases ____________________

 

Last updated: 2026-01-13

DOI: 10.5281/zenodo.18232112

 

______Contact______

* Karel Friess

* Karel.Friess@vscht.cz

* +420 220 44 4029

* ORCID: 0000-0002-1858-0555

* Dept. of Physical Chemistry. Faculty of Chemical Engineering, University of chemistry and Technology, Prague

* Technicka 5, 166 28, Prague 6, Czech Republic

 

______Researcher______

* Name Surname: Saeed Ashtiani

* jamalias@vscht.cz

* +420 725552611

* ORCID: 0000-0002-9016-9410

* Dept. of Chemical Engineering. Faculty of Physical Chemistry, University of chemistry and Technology, Prague

* Technicka 5, 166 28, Prague 6, Czech Republic

 

______Licence______

*Dataset for article Demonstrating the potential of versatile single-crystal spinel magnetic CoFe₂O₄-Ti₃C₂Tₓ MXene-based hybrid platforms for multifaceted nano-level separations in gas and liquid phases” 2025 by Saeed Ashtiani, Bing Wu, Mehdi Khoshnamvand, Josef Schneider, Jana Florekova, Jakub Regner, Payal Chauhan, Zdenek Sofer, Karel Friess is licensed under CC BY NC 4.0

*licence information: https://creativecommons.org/licenses/by-nc/4.0/ 

 

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______About the dataset______

A series of metal oxides was synthesized using hydrothermal methods. The salts and ions for the synthesis process were purchased as they are named and listed in the article. The polymer films were fabricated using NIPS method. The fabricated MMM were tested with different classical tests (XRD, FTIR, XPS, SEM, 3D Scan, TEM) and gas permeation method.

 

______Methods of data collection______

*More detailed description can be found in article: 

Ashtiani, S.; Wu, B.; Khoshnamvand, M.; Schneider, J.; Floreková, J.; Regner, J.; Chauhan, P.; Sofer, Z.; Friess, K. Demonstrating the potential of versatile single-crystal spinel magnetic CoFe₂O₄-Ti₃C₂Tₓ MXene-based hybrid platforms for multifaceted nano-level separations in gas and liquid phases. Chemical Engineering Journal Advances 2025, 24, 100937. DOI: https://doi.org/10.1016/j.ceja.2025.100937.

 

*Sample preparation

All the samples were collected in the form of powders (for metal oxides) and the flat sheet membrane (for MMM) to be analysed and  more detailed description can be found in article:

Ashtiani, S.; Wu, B.; Khoshnamvand, M.; Schneider, J.; Floreková, J.; Regner, J.; Chauhan, P.; Sofer, Z.; Friess, K. Demonstrating the potential of versatile single-crystal spinel magnetic CoFe₂O₄-Ti₃C₂Tₓ MXene-based hybrid platforms for multifaceted nano-level separations in gas and liquid phases. Chemical Engineering Journal Advances 2025, 24, 100937. DOI: https://doi.org/10.1016/j.ceja.2025.100937.

 

* FT-IR spectroscopy: 

HW: a Nicolet iS50 FT-IR spectrometer (Thermo Scientific, Waltham, Massachusetts, USA); the sample of membrane was attached to the diamond surface and measured in ATR mode with DTGS detector

*Gas separation (gas sorption and permeation):

Sorption tests were performed gravimetrically using a custom-made apparatus with a McBain quartz spiral balance (sensitivity: 15.253 mg mm−1) placed on an anti-vibration table (Thor Labs) to minimize disturbances. The temperature (25 °C) was controlled using a heating unit (Bravo B 4273) and cooling system (Julabo F250). Experiments were conducted at pressures ranging from 0.1 to 0.5 MPa and 1 MPa, with 30–55 mg samples sealed in glass tubes and evacuated (<10−3 mbar) using a rotary pump (Trivac D4B, Oerlikon Leybold). Spiral elongation was recorded by a CCD (Sony).

For gas permeation in a custom-built time lag permeation setup. A circular membrane with an active area of 2.01 × 10−4 m2 was cut and tightly enclosed into a permeation cell for gas permeation measurement. Prior to the sorption and gas permeation experiment, the membranes were kept overnight in a vacuum oven at 50 °C for complete dryness. Similarly, the permeation cell was constantly evacuated with a vacuum pump before each gas experiment to remove its gases. The synthesized membranes were subjected to the test gases, and the data were collected using the SWeTr version 1.13 (2003, Neovision) data acquisition software. 

* Fluorescence spectrophotometry (FS):

  HW: a Fluorescence Spectrophotometer (F-7000, Hitachi, Japan)

* Profilometry:

HW: the 3D non-contact optical surface profiler NewView 9000 (ZYGO, USA)

* Scanning electron microscopy (SEM) and Energy-dispersive X-ray spectroscopy (EDX):

HW: a SEM (Oxford Instruments, Hitachi S-4800, Japan) with EDX and a 150 mm2 with SDD detector

           The instrument operated at range of 10-25 kV during cross-sectional mapping. 

* Transmission electron microscopy (TEM) and Energy-dispersive X-ray spectroscopy (EDX):

HW: a JEM-2200FS (Jeol, Japan) instrument

          Maintaining the accelerating voltage of 200.00 kV in the TEM imaging mode.

* Thermogravimetric analysis (TGA):

HW: an STA PT 700 LT device (Linseis, Germany) 

         Apparatus with a heating rate of 10 °C min−1 in an N2 gas atmosphere (50 mL min−1).

* X-ray photoelectron spectroscopy (XPS):

HW: an ESCAProbeP spectrometer (Omicron Nanotechnology, Uppsala, Sweden)

*X-ray diffraction (XRD):

HW: a Bruker D8 Discoverer θ-θ diffractometer (Karlsruhe, Germany) with Bragg-Brentano geometry and Cu Kα radiation (λ = 0.15418 nm, U = 40 kV, I = 40 mA)

          Data were scanned at an angular range of 10–80° (2θ).

 

______Methods of data processing______

The dataset contains raw and processed data. The details regarding the processing are described in article: 

Ashtiani, S.; Wu, B.; Khoshnamvand, M.; Schneider, J.; Floreková, J.; Regner, J.; Chauhan, P.; Sofer, Z.; Friess, K. Demonstrating the potential of versatile single-crystal spinel magnetic CoFe₂O₄-Ti₃C₂Tₓ MXene-based hybrid platforms for multifaceted nano-level separations in gas and liquid phases. Chemical Engineering Journal Advances 2025, 24, 100937. DOI: https://doi.org/10.1016/j.ceja.2025.100937.

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______File name structure_____

* PN_X_YYYYMMDD

PN – project number (GACR-24-11041S)

X – measurement method (DSC, FTIR, gassodsorption, permeation, FS, profilometer, SEM, EDX, TEM, TGA, XPS, XRD)

YYYYMMDD – date of measurement (YYYY – year; MM – month; DD – date)

 

* Example: GACR-24-11041S_FTIR_YYYYMMDD.ext

 

 

______File formats______

* FT-IR spectroscopy - original CSV + processed OPJU

        The raw and processed data.

* Gas sorption + permeation – original XLSX + processed OPJU

        The folder contains raw and processed data.

* Fluorescence Spectrophotometry (FS): original XLS + picture of nanoplastics TIF/JPG/PNG + description DOCX

        The folder contains raw and processed data.

*Profilometer – original TIF

        The folder contains raw data.

*  Scanning electron microscopy (SEM) and Energy-dispersive X-ray spectroscopy (EDX) – original picture TIF (SEM) + original description of individual samples HDR (SEM) and original map DOCX (EDX) 

       The folder contains raw data.

* Transmission electron microscopy (TEM) and Energy-dispersive X-ray spectroscopy (EDX) – original TIF (TEM) + original DOCX (EDX)

        The folder contains raw data.

* Thermogravimetric analysis (TGA): original XLS + TXT and processed PNG

       The folder contains the raw and processed data.

* X-ray photoelectron spectroscopy (XPS): original VMS + original spectra TXT

        The folder contains raw data.

* X-ray diffraction (XRD): original TXT + original ASC 

        The folder contains raw data.

 

______Date formats______

* YYYY-MM-DD

* HH-MM-SS 24hr format

 

______Units and abbreviations______

* All FTIR spectra are in Wavenumber (cm^-1) vs Absorbance (-)

* All XRD spectra are in the 2θ (°) vs Intensity (a.u.)

* All XPS spectra are in the kinetic energy (eV) vs CPS (counts per second)

* All the TGA data are in the temperature degree  oC.

 

______SW necessary to open files______

* FT-IR spectra in txt-ACS can be opened in Origine 2019 and processed OPJU using OriginPro 2019 (OriginLab Corporation).

* Gas sorption + permeation data in OPJU can be opened in high score or OriginPro 2019 (OriginLab Corporation).

* XRD spectra in CSV can be opened in high score or OriginPro 2019 (OriginLab Corporation).* TGA data can be open in Excel or Origine 2019 (OriginLab Corporation).

*XPS data can be open with Casa XPS reader.