Cu(II) and Zn(II) metal ions’ sorption utilising halloysite nanotubes derivative DOI
A.M. Abu El-Soad, Elena G. Kovaleva, Ahmed A. Galhoum

et al.

International Journal of Environmental & Analytical Chemistry, Journal Year: 2023, Volume and Issue: unknown, P. 1 - 18

Published: July 17, 2023

Designing and developing clay-based adsorbents with a strong preference for removing copper zinc metal ions, reduced cost, eco-friendliness, good recyclability is strategy water remediation. Herein, halloysite nanotubes (HNT) were activated by (3- chloropropyl) trimethoxy silane (CPTM) as linker polyethyleneimine to give HN-PEI. The hybrid organic/inorganic sorbent HN-PEI was analysed Fourier-transform infrared spectroscopy, CHN/O (elemental analysis), scanning electron microscopy, textural properties (via the Brunauer – Emmett Teller technique), X-ray diffraction, thermogravimetry coupled differential calorimetry. HN-PEI's show specific surface of 10.92 m2/g pore size 18.2 nm compared its Pristine HNT (65.33 m2/g) (⁓10.1 nm), respectively dominant mesoporous structure. selectivity sorption characteristics Cu(II) Zn(II) ions exploited, while exhibited remarkable improvement in terms these from aqueous media. At pH 4.5, capacities 2.8 mmol g−1 1.8 g−1, equilibrium reached within 120 150 min, respectively. There an acceptable fitting pseudo-second-order Langmuir equations, experimental data enabled mono-layer chemisorption reactions. exothermic spontaneous. shows high durability over multiple cycles, after 3 sorption/desorption efficacy decreased less than 6% using HCl (1 M) H2SO4 (1.5 Zn(II). According bi-system solution test, KSC(Cu(II)/Zn(II)) ⁓2.0. Finally, had excellent efficiency Cu(II), Pb(II), especially Cu(II).

Language: Английский

Potentiality of Spirulina platensis in zirconium ions biosorption and removal from aqueous solution as an eco-friendly process DOI
Akram A. Mohammed,

Sally S. Muhammad,

Hala A. Mohamed

et al.

Separation Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 12

Published: April 3, 2025

Language: Английский

Citations

0
Synthesis, Characterization, and Evaluation of Zero‐Valent Iron Nanoparticles from Different Leaf Extracts: Photo‐Catalytic Dibenzothiophene Degradation and Antimicrobial Efficiency DOI

Mona S. Elsehemy,

Yasser K. Abdel Monam,

Ahmed A. Galhoum

et al.

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(15)

Published: April 1, 2025

Abstract A simple, efficient green synthesis approach was employed to produce and potential iron‐zero valent photocatalysts (Fe0 NPs), derived from two plant extracts: Rosmarinus officinalis (ROS‐Fe0 NPs) Guava leaves (GUA‐Fe0 NPs). These nanocatalysts were tested for the photo‐degradation of dibenzothiophene (DBT), their antimicrobial properties also assessed. The biosynthesized Fe0 NPs characterized via different techniques. XRD revealed diffraction peaks lattice planes (110), (200), corresponding body‐centered cubic (bcc) structure metallic Fe0. lower PL intensity ROS‐Fe⁰ compared GUA‐Fe⁰ suggests reduced electron‐hole recombination, leading improved photocatalytic activity. achieving 89.9% DBT degradation 80% NPs. This is due ROS‐derived phytochemicals, such as polyphenols flavonoids, which act capping agents, improving nanoparticle dispersion, reducing size. After five cycles, converted into hematite magnetite phases enhances up 95.6% spent oxidized ROS‐Fe0 90.3% GUA‐Fe0 Both extracts iron nanoparticles demonstrated strong activity against bacteria fungi. So, phytochemicals GUA‐ ROS‐ highlight influence on both antibacterial performance.

Language: Английский

Citations

0
Aminated-Polyacrylonitrile-Ni-Imidazole Composite for CO2 Capture: Synthesis, Application and Mechanistic Insights DOI
Azza A. Al‐Ghamdi, Mukarram Zubair, Ismail Anıl

et al.

Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: unknown, P. 106590 - 106590

Published: April 1, 2025

Language: Английский

Citations

0
Functional bio-foam filters: An effective barrier for microplastic and other emerging pollutant containment DOI

Glenita Bridget D'Souza,

M.M. Sanjay,

Pranav Bhardwaj

et al.

Materials Today Sustainability, Journal Year: 2024, Volume and Issue: 26, P. 100777 - 100777

Published: April 2, 2024

Language: Английский

Citations

2
Efficient trapping of neodymium ions from aqueous solutions via SnO2-decorated diatomite nanocomposite: Application to monazite leachate DOI
Ahmed A. Galhoum, Mohsen Farahat,

Sally S. Muhammad

et al.

Minerals Engineering, Journal Year: 2023, Volume and Issue: 202, P. 108314 - 108314

Published: Aug. 11, 2023

Language: Английский

Citations

2
Solvent extraction of titanium(IV) from orthophosphoric acid media using Aliquat-336/kerosene and stripping with nitric acid DOI
Ahmed A. Galhoum,

Basma T. Mohamed,

Shaimaa Salah Abdulmoteleb

et al.

Hydrometallurgy, Journal Year: 2024, Volume and Issue: unknown, P. 106403 - 106403

Published: Sept. 1, 2024

Language: Английский

Citations

0
Cu(II) and Zn(II) metal ions’ sorption utilising halloysite nanotubes derivative DOI
A.M. Abu El-Soad, Elena G. Kovaleva, Ahmed A. Galhoum

et al.

International Journal of Environmental & Analytical Chemistry, Journal Year: 2023, Volume and Issue: unknown, P. 1 - 18

Published: July 17, 2023

Designing and developing clay-based adsorbents with a strong preference for removing copper zinc metal ions, reduced cost, eco-friendliness, good recyclability is strategy water remediation. Herein, halloysite nanotubes (HNT) were activated by (3- chloropropyl) trimethoxy silane (CPTM) as linker polyethyleneimine to give HN-PEI. The hybrid organic/inorganic sorbent HN-PEI was analysed Fourier-transform infrared spectroscopy, CHN/O (elemental analysis), scanning electron microscopy, textural properties (via the Brunauer – Emmett Teller technique), X-ray diffraction, thermogravimetry coupled differential calorimetry. HN-PEI's show specific surface of 10.92 m2/g pore size 18.2 nm compared its Pristine HNT (65.33 m2/g) (⁓10.1 nm), respectively dominant mesoporous structure. selectivity sorption characteristics Cu(II) Zn(II) ions exploited, while exhibited remarkable improvement in terms these from aqueous media. At pH 4.5, capacities 2.8 mmol g−1 1.8 g−1, equilibrium reached within 120 150 min, respectively. There an acceptable fitting pseudo-second-order Langmuir equations, experimental data enabled mono-layer chemisorption reactions. exothermic spontaneous. shows high durability over multiple cycles, after 3 sorption/desorption efficacy decreased less than 6% using HCl (1 M) H2SO4 (1.5 Zn(II). According bi-system solution test, KSC(Cu(II)/Zn(II)) ⁓2.0. Finally, had excellent efficiency Cu(II), Pb(II), especially Cu(II).

Language: Английский

Citations

1