Advanced Metal Oxide Nanostructures for Environmental Remediation: Synthesis and characterization of PbO, MgO, TiO₂ and Fe₂O₃ | Chapter 5 | Chemical and Materials Sciences: Developments and Innovations Vol. 8

Aims: This study discusses the synthesis and characterization of metal oxide nanomaterials for environmental remediation applications, with emphasis on their photocatalytic properties.

Methodology: Two kinds of metal oxides, PbO and MgO, were prepared for the degradation application of textile dye methylene blue. In parallel, a porous thin film with heterojunction of TiO₂ modified by polyethylene glycol (PEG) prepared by several molecular weights from 300 to 20.000 the best porous sample was covered by Fe₂O₃ by electrodeposition technique.

PbO and MgO oxides were synthesized by coprecipitation, while TiO₂-PEG/Fe₂O₃ heterojunction was prepared by Sol-Gel, spin coating and electrodeposition method. Structural characterization was performed by X-ray diffraction (XRD), Raman spectroscopy, and morphological analysis by atomic force microscopy (AFM) also with transmission electron microscopy (TEM). Photocatalytic performances were evaluated via the degradation of methylene blue dye.

Results: PbO and MgO oxides, as well as TiO₂-PEG/Fe₂O₃ heterojunction, demonstrated significant efficiency in the degradation of methylene blue dye, confirming their potential for environmental remediation. The results show that these nanomaterials can be effective agents for the photodegradation of organic contaminants.

Conclusion: Metal oxide nanomaterials have great potential for environmental remediation applications.

 

Author (s) Details

 

Saloua Helali
Department of Physics, Faculty of Sciences, University of Tabuk, King Faisal Road, Tabuk 47512, Saudi Arabia and Nanomaterials and Systems for Renewable Energy Laboratory, Research and Technology Center of Energy, Technoparc Borj Cedria, BP 095 Hammam Lif, Tunisia.

 

Zoubaida Landolsi
Nanomaterials and Systems for Renewable Energy Laboratory, Research and Technology Center of Energy, Technoparc Borj Cedria, BP 095 Hammam Lif, Tunisia.’

 

Ibtissem Ben Assaker
Nanomaterials and Systems for Renewable Energy Laboratory, Research and Technology Center of Energy, Technoparc Borj Cedria, BP 095 Hammam Lif, Tunisia.

 

Please see the book here:- https://doi.org/10.9734/bpi/cmsdi/v8/3495

Biogenic Synthesis and Size Distribution Analysis of Iron Nanoparticles of Fungus Penicillium crustosum, Isolated from Taxus baccata Linn| Chapter 10 | Research Advances in Microbiology and Biotechnology Vol. 5

 The study is focused on the combination and analysis of the capacity of iron nanoparticles (INPs), synthesized from Penicillium crustosum, a fungal endophyte populating in Taxus baccata Linn. After microscopic level identification, the fungal extract was assign the synthesis of Iron nanoparticles. The formation of Iron nanoparticles was habitual by SPR and UV-vis spectral study as specific peaks were acquired at 230 nm and 290 nm. The powdered form of INPs acquired after Lyophilization was assign size description using Radioactivity diffraction (XRD), place the average size was deliberate using Debye-Scherrer’s recipe and it showed the average capacity of INPs was 34.18 nm. The dynamic light scattering (DLS) and zeta potential reasoning showed that the Z average of the INPs was 424.3 r.nm, accompanying zeta potential -20.3 mV with PdI 0.688 improving polydispersity. Tools like Field issuance scanning power microscopy (FEG-SEM), and high-determination transmission power microscopy (HRTEM) were used to study the surface and size of combined INPs, here the capacity was 39.94 nm and 29.09 nm, respectively. The occupancy of elemental iron in the sample was habitual by using Strength dispersive spectroscopy (EDS). The vibrating sample magnetometer (VSM) confirmed that the made nanoparticles were ferromagnetic. This study concluded that the endophytic fungi P. crustosum maybe used as a potential lowering agent for the combination of Iron nanoparticles in a safe and economical way.

Author(s) Details:

Ankush Sharma,
Department of Biosciences, Himachal Pradesh University, Summer Hill, Shimla-171 005, Himachal Pradesh, India.

Anand Sagar,
Department of Biosciences, Himachal Pradesh University, Summer Hill, Shimla-171 005, Himachal Pradesh, India.

Please see the link here: https://stm.bookpi.org/RAMB-V5/article/view/10488