Diamond and Related Materials, Год журнала: 2024, Номер unknown, С. 111678 - 111678
Опубликована: Окт. 1, 2024
Язык: Английский
Journal of Environmental Management, Год журнала: 2025, Номер 375, С. 124390 - 124390
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
2
The Canadian Journal of Chemical Engineering, Год журнала: 2023, Номер 102(3), С. 1248 - 1261
Опубликована: Окт. 24, 2023
Abstract Herein, we have synthesized a microspherical nickel‐cobalt‐layered double hydroxides‐reduced graphene oxide composite (NiCo‐LDHs‐rGO) through one‐step hydrothermal method and then used it as an adsorbent for the removal of Pb 2+ from aqueous solutions. Fourier transform infrared spectrophotometry (FT‐IR), field emission scanning electron microscopy (FESEM), mapping elemental analysis, dispersive x‐ray spectroscopy (EDX), diffraction analysis (XRD), Brunauer–Emmett–Teller (BET) were characterization adsorbent. Factors affecting adsorption ion such solution pH, dosage, contact time, competing ion, regeneration investigated in batch mode by NiCo‐LDHs‐rGO. Under optimized conditions based on Taguchi (pH = 5.0, dosage 20 mg, time 30 min), highest percentage was found to be 99.7% 100 mg L −1 . According results, NiCo‐LDHs‐rGO exhibited high preference over Cu , Zn Cd This regenerated several cycles (using 0.01 M HCl) with no significant deterioration performance. Analyses isotherm models revealed that follows Freundlich maximum capacity 200 g Also, kinetic data confirmed pseudo second order equation is best model predicting kinetics. Furthermore, Simulink modelling illustrated kinetics onto done accuracy continuous stirred‐tank reactor. Finally, dual interactions effective parameters can modelled polynomial equations MATLAB, according model, pH clearly most important feature among all parameters.
Язык: Английский
Процитировано
11
Scientific Reports, Год журнала: 2024, Номер 14(1)
Опубликована: Апрель 15, 2024
Abstract In this research, a new and eco-friendly heterogeneous catalyst (ND@Tannicacid-Cu) was synthesized based on nanodiamond copper tannic acid via esterification process. The as-prepared characterized by Fourier transforms infrared spectroscopy (FT-IR), energy dispersive X-ray (EDX), scanning electron microscopy (SEM), diffraction (XRD) methods. catalytic efficacy of the intended examined one-step three-component reaction 1,4-benzodiazepine derivatives from mixture ortho-phenylenediamine, aromatic aldehydes, dimedone under mild conditions. all instances, corresponding 2,4-benzodiazepines were with high efficiency, short time, straightforward work up procedure, no requirement for column-chromatography, cost-effective catalyst. easily recycled using fillers, it can be reused eight cycles without significantly diminishing its performance.
Язык: Английский
Процитировано
4
Results in Chemistry, Год журнала: 2024, Номер 7, С. 101506 - 101506
Опубликована: Янв. 1, 2024
Water pollution, driven by Pb2+, poses a significant threat to biotics and the environment. A promising solution address issue is utilization of cellulose from lignocellulosic materials as an adsorbent remove or reduce Pb2+ wastewater. However, reported, adsorption capacities native adsorbents vary depending on their plant source, metal binding capacity not satisfactory expected due lack robust chelation sites, particularly amino groups. Thus, this study aimed improve uptake utilizing prosopis juliflora stem, previously unexplored through ethylenediamine (EDA) grafting. FTIR, XRD, FE-SEM, EDX, TGA evaluated physicochemical properties amino-decorated (ADC) adsorbent. The effect experimental variables (initial concentration, ADC dose, contact time) percent removal was investigated analyzed using Box-Behnken Design (BBD). Analysis variance (ANOVA) revealed that, among interaction effects, only interactions between initial concentration dose significantly affected (P < 0.0008). optimal onto at conditions: pH 5, 0.47 g, 52 mg L−1, time 118 min 97.37 % 53.86 g−1, respectively. agreed well with Langmuir isotherm pseudo-second-order kinetic model. analysis demonstrated that created monolayer for attachment during process, maximum 64.72 g−1. Additionally, kinetics indicated chemisorption dominant mechanism Pb2+. Results regeneration studies retained its good up four cycles.
Язык: Английский
Процитировано
3
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0
Environmental Science and Pollution Research, Год журнала: 2025, Номер unknown
Опубликована: Фев. 26, 2025
Язык: Английский
Процитировано
0
ChemistryOpen, Год журнала: 2025, Номер unknown
Опубликована: Март 27, 2025
Abstract This review manuscript examines magnetic nanocatalysts and their pivotal role in forming carbon‐sulfur (C−S) carbon‐selenium (C−Se) bonds. The study delves into the latest advancements synthesis, characterization, application of nanocatalysts, highlighting unique advantages, including enhanced catalytic activity, superior selectivity, easy recovery through separation, which align with principles green chemistry. Through a critical analysis recent research findings, this also explores mechanistic pathways facilitated by these offering insights operational efficiency potential for recyclability. aims not only to catalog current achievements burgeoning field but identify challenges propose future directions developing more efficient, sustainable, versatile systems C−S C−Se bond formation. By encompassing broad spectrum ranging from bare magnets functionalized composite materials, is comprehensive resource researchers engaged organic catalysis, sustainable
Язык: Английский
Процитировано
0
Polyhedron, Год журнала: 2025, Номер unknown, С. 117564 - 117564
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
0
International Journal of Environmental & Analytical Chemistry, Год журнала: 2025, Номер unknown, С. 1 - 22
Опубликована: Апрель 22, 2025
Язык: Английский
Процитировано
0
Journal of Water Process Engineering, Год журнала: 2025, Номер 74, С. 107767 - 107767
Опубликована: Апрель 27, 2025
Язык: Английский
Процитировано
0