Nanocomposite hydrogel based on Sodium Alginate and MnO 2 : A Simple Strategy for Catalytic Degradation of Organic Dye DOI Creative Commons
Fatemeh Rahimi, Hossein Ghasemzadeh

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Ноя. 26, 2024

Abstract In the present work, degradation of crystal violet (CV) was studied using a heterogeneous Fenton-like system in aqueous solution A mesoporous nanocomposite hydrogel synthesized based on sodium alginate biopolymer and AMPS/AAm monomers through radical polymerization followed by incorporation manganese oxide nanoparticles within hydrogel. The structure, morphology (MnO2/NCH) were analyzed Brunauer-Emmett-Teller (BET), Field emission scanning electron microscope (FESEM), energy dispersive X-ray analysis, (EDX), Fourier transform infrared spectroscopy (FT-IR), photoelectron (XPS), Zeta Potential, Dynamic Light Scattering (DLS). effect different parameters such as initial pH solution, amount loaded metal ion, time, temperature, dose H2O2, catalyst, dye concentration removal studied. ratio optimal conditions over 98% relatively short time (20 min). high reusability obtained for catalyst consecutive cycles. studies indicate that catalytic reaction follows pseudo zero-order kinetic model.

Язык: Английский

Tuning the composition of new polyvinylidene difluoride/graphene/zinc ferrite films for amoxicillin removal from wastewater DOI
Rabab A. Nasr, A. M. Ismail, Mohamed Ahmed

и другие.

Journal of Water Process Engineering, Год журнала: 2024, Номер 67, С. 106167 - 106167

Опубликована: Сен. 21, 2024

Язык: Английский

Процитировано

4
Modification of photocatalytic activity and antibacterial properties of Mn2O3 by Zn ions doping DOI Creative Commons
Rabab A. Nasr,

Ahmed F. El‐Sayed,

G. M. El komy

и другие.

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Апрель 24, 2025

Язык: Английский

Процитировано

0
Sulfur-doped lithium phosphate glasses ceramics: a detailed exploration of sulfur on the structural, optical, and electrical properties DOI Creative Commons
Reda Khalil, Talaat A. Hameed,

Fathy Salman

и другие.

Journal of Materials Science Materials in Electronics, Год журнала: 2025, Номер 36(13)

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0
A Two-Level Factorial Design for calcium cobaltite doped scandium /chitosan films Composite in pharmaceutical wastewater photocatalytic degradation DOI
Rabab A. Nasr, Tamer I.M. Ragab, H. A. Abbas

и другие.

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Май 7, 2025

Abstract The photocatalytic decomposition rates of a widely used nonsteroidal anti-inflammatory drug naproxen wastewater were assessed using Ca3Co4O9 and Sc-doped /Chitosan nanocomposit films as photocatalyst irradiating with visible light. Chitosan was extracted from shrimp shells an immobilization matrix for the prepared photocatalyst. synthesized Pechini method composites characterized FTIR, XRD, TEM optical properties. Naproxen chosen model compound pharmaceutical to determine performance nanocomposite films. % removal attained 95% chitosan/Ca3Co3.99Sc0.01O9, photodegradation followed pseudo-first-order kinetics. To gain extensive comprehension process, key active species involving (50/50) chitosan/ Ca3Co3.99Sc0.01O9 also investigated. Various scavengers incorporated into degradation process block potential superoxide radicals ( \(\:{O}_{2}^{\cdot\:}\)), photoexcited holes (h+), hydroxyl (⋅OH) fulfill this target. Removal COD, BOD, TOC in real samples exceeded 85%. Even after five cycles, film's reusable properties demonstrated continuous capabilities, only 10% loss. investigation utilized two-level factorial design that included diagnostic plots such perturbations plot, ANOVA, Pareto's chart.

Язык: Английский

Процитировано

0
Cerium Single Atom Anchored Silver Selenide: A High-Performance Catalyst for Hydrogen Evolution Reaction with Ultra-Low Activation Energy and Enhanced Stability DOI
Sathish Panneer Selvam, Sungbo Cho

Surfaces and Interfaces, Год журнала: 2024, Номер 54, С. 105176 - 105176

Опубликована: Сен. 25, 2024

Язык: Английский

Процитировано

1
Core‐shell Structured Nano CuO@CER Composites for the Photoelectrocatalytic Degradation of Methylene Blue DOI
Guanyu Liang, Ying Wang, Xinyu Dong

и другие.

ChemistrySelect, Год журнала: 2024, Номер 9(44)

Опубликована: Ноя. 1, 2024

Abstract The composite material of nano CuO loaded on ion exchange resin (CuO@CER) as the carrier was prepared successfully by constant temperature oscillation and hydrothermal synthesis methods. It applied to photoelectrocatalytic degradation methylene blue (MB) an organic pollutant, further explore optimal conditions for CuO@CER MB. results showed that had a typical core‐shell structure, good crystallinity high purity. exhibited excellent photocatalytic performance towards MB, with rates 92.02% 95.20% in 70 min under their respective reaction conditions. Furthermore, stability relatively, MB exceeded 96% after 5 cycles experiments. Free radical quenching experiments indicated superoxide radicals were main active groups during photoelectrocatalysis. Additionally, mechanism electric field briefly analyzed. This study will provide technical support dye wastewater.

Язык: Английский

Процитировано

0
Nanocomposite hydrogel based on Sodium Alginate and MnO 2 : A Simple Strategy for Catalytic Degradation of Organic Dye DOI Creative Commons
Fatemeh Rahimi, Hossein Ghasemzadeh

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Ноя. 26, 2024

Abstract In the present work, degradation of crystal violet (CV) was studied using a heterogeneous Fenton-like system in aqueous solution A mesoporous nanocomposite hydrogel synthesized based on sodium alginate biopolymer and AMPS/AAm monomers through radical polymerization followed by incorporation manganese oxide nanoparticles within hydrogel. The structure, morphology (MnO2/NCH) were analyzed Brunauer-Emmett-Teller (BET), Field emission scanning electron microscope (FESEM), energy dispersive X-ray analysis, (EDX), Fourier transform infrared spectroscopy (FT-IR), photoelectron (XPS), Zeta Potential, Dynamic Light Scattering (DLS). effect different parameters such as initial pH solution, amount loaded metal ion, time, temperature, dose H2O2, catalyst, dye concentration removal studied. ratio optimal conditions over 98% relatively short time (20 min). high reusability obtained for catalyst consecutive cycles. studies indicate that catalytic reaction follows pseudo zero-order kinetic model.

Язык: Английский

Процитировано

0