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Sidra Bibi
Department of Chemistry, Quaid-i-Azam University Islamabad, Islamabad 45320, Pakistan

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Journal article
Published: 05 July 2021 in Coatings
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Iron–copper bimetallic nanoparticles (Fe-Cu BNPs) were prepared via a green synthesis route. Ixora finlaysoniana has been used in this study as a capping and stabilizing agent in the modification of Fe-Cu BNPs. As-synthesized BNPs were characterized using different techniques including UV/Vis spectrophotometry, FTIR, XRD and SEM. A particle size analyzer and SEM studies indicated the particle size to be in the range of 50–200 nm. In addition, degradation of MB dye in an aqueous system and radical-scavenging potential in a DPPH assay were also examined using BNPs. Methylene blue dye degradation in 17 min was monitored with UV/Vis spectrophotometry, which exhibited the efficiency of Fe-Cu BNPs. Bimetallic nanoparticles were also found to be efficient in neutralizing DPPH free radicals. Furthermore, kinetic studies of both dye degradation and radical scavenging potential are reported in this article. Subsequently, Fe-Cu BNPs synthesized via a green and sustainable method can be employed for dye degradation and free radical-scavenging activities.

ACS Style

Umer Younas; Syed Hassan; Faisal Ali; Faiza Hassan; Zohaib Saeed; Muhammad Pervaiz; Safia Khan; Fakiha Jannat; Sidra Bibi; Ayesha Sadiqa; Zahid Ali; Shahid Iqbal; Ayman Ghfar; Mohamed Ouladsmane; Murefah Al-Anazy; Shafaqat Ali. Radical Scavenging and Catalytic Activity of Fe-Cu Bimetallic Nanoparticles Synthesized from Ixora finlaysoniana Extract. Coatings 2021, 11, 813 .

AMA Style

Umer Younas, Syed Hassan, Faisal Ali, Faiza Hassan, Zohaib Saeed, Muhammad Pervaiz, Safia Khan, Fakiha Jannat, Sidra Bibi, Ayesha Sadiqa, Zahid Ali, Shahid Iqbal, Ayman Ghfar, Mohamed Ouladsmane, Murefah Al-Anazy, Shafaqat Ali. Radical Scavenging and Catalytic Activity of Fe-Cu Bimetallic Nanoparticles Synthesized from Ixora finlaysoniana Extract. Coatings. 2021; 11 (7):813.

Chicago/Turabian Style

Umer Younas; Syed Hassan; Faisal Ali; Faiza Hassan; Zohaib Saeed; Muhammad Pervaiz; Safia Khan; Fakiha Jannat; Sidra Bibi; Ayesha Sadiqa; Zahid Ali; Shahid Iqbal; Ayman Ghfar; Mohamed Ouladsmane; Murefah Al-Anazy; Shafaqat Ali. 2021. "Radical Scavenging and Catalytic Activity of Fe-Cu Bimetallic Nanoparticles Synthesized from Ixora finlaysoniana Extract." Coatings 11, no. 7: 813.

Journal article
Published: 05 May 2021 in Journal of Environmental Chemical Engineering
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Reduced graphene oxide based iron oxide modified titania (rGO-Fe3O4/TiO2) was developed as a low-cost, stable, and reproducible photocatalyst, synthesized by conventional hydrothermal route. Structural and morphological features were investigated by X-Ray diffraction (XRD), Thermogravimetric analysis (TGA), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), and Energy Dispersive Spectroscopy (EDS). The incorporation of rGO-Fe3O4 to TiO2 shifted the light absorption of TiO2 from ultraviolet (UV) to visible region. The band gap energy of the synthesized photocatalyst rGO-Fe3O4/TiO2 reduced to 2.6 eV as compared to TiO2 (3.2 eV) which shifted the light absorption into visible region in order to utilize the solar energy effectually. The as-proposed rGO-Fe3O4/TiO2 and TiO2 photocatalysts were used for the photo-degradation of malachite green (MG) and methylene blue (MB) degradation. The as-prepared photocatalyst rGO-Fe3O4/TiO2 exhibited commendable photocatalytic efficiency (99%) comparative to pure TiO2 (67%) under visible light in 55 min for MG degradation. The active species were also identified using various scavengers by trapping holes and radicals generated during the photocatalytic degradation process. Subsequently, such photo-degradation output inferred that this ternary nanocomposite partakes a great potential for visible light driven MG and MB photocatalytic degradation.

ACS Style

Sidra Bibi; Awais Ahmad; Mohsin Ali Raza Anjum; Abdul Haleem; Muhammad Siddiq; Syed Sakhawat Shah; Abdullah Al Kahtani. Photocatalytic degradation of malachite green and methylene blue over reduced graphene oxide (rGO) based metal oxides (rGO-Fe3O4/TiO2) nanocomposite under UV-visible light irradiation. Journal of Environmental Chemical Engineering 2021, 9, 105580 .

AMA Style

Sidra Bibi, Awais Ahmad, Mohsin Ali Raza Anjum, Abdul Haleem, Muhammad Siddiq, Syed Sakhawat Shah, Abdullah Al Kahtani. Photocatalytic degradation of malachite green and methylene blue over reduced graphene oxide (rGO) based metal oxides (rGO-Fe3O4/TiO2) nanocomposite under UV-visible light irradiation. Journal of Environmental Chemical Engineering. 2021; 9 (4):105580.

Chicago/Turabian Style

Sidra Bibi; Awais Ahmad; Mohsin Ali Raza Anjum; Abdul Haleem; Muhammad Siddiq; Syed Sakhawat Shah; Abdullah Al Kahtani. 2021. "Photocatalytic degradation of malachite green and methylene blue over reduced graphene oxide (rGO) based metal oxides (rGO-Fe3O4/TiO2) nanocomposite under UV-visible light irradiation." Journal of Environmental Chemical Engineering 9, no. 4: 105580.