Bismuth Oxide/MgAl-LDH Heterostructures for Photocatalytic Dye Degradation: VESTA-Based Structural and Electronic Analysis

Surfaces and Interfaces, Год журнала: 2025, Номер unknown, С. 106451 - 106451

Опубликована: Апрель 1, 2025

Язык: Английский

Areca Catechu Biochar and Nano-Biochar as Adsorbents for Congo Red: Synthesis, Characterization, and Performance Evaluation

BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS, Год журнала: 2025, Номер 20(1), С. 112 - 128

Опубликована: Фев. 10, 2025

The presence of hazardous synthetic dyes such as Congo Red in industrial wastewater poses a significant environmental threat. This study explores the potential biochar (BC) and nano-biochar (nano-BC), derived from Areca catechu husk sustainable adsorbents for dye removal. Nano-BC was synthesised via hydrothermal carbonisation mechanical ball milling, leading to enhanced structural surface properties. X-ray Diffraction (XRD) revealed that Pinang is predominantly amorphous, while BC exhibits increased crystallinity with sharp peaks, nano-BC demonstrates highest nanostructural refinement. Fourier Transform Infra (FTIR) confirmed transformation aliphatic-rich raw biomass into aromatic-dominant structures nano-BC, showing more pronounced graphite-like features. Scanning Electron Microscope (SEM) illustrated morphological evolution, exhibiting refined, uniformly porous structures. BET analysis has significantly higher area 41.38 m²/g smaller pore size 8.4928 nm compared 22.38 15.39 nm, enhancing adsorption capacity. Furthermore, kinetics followed pseudo-second-order model, isothermal monolayer maximum capacity (Qmax = 154.526 mg/g). These findings highlight superior performance emphasising its environmentally friendly water treatment applications. Copyright © 2025 by Authors, Published BCREC Publishing Group. an open access article under CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Язык: Английский

A novel synthesis route of peach blossom-like Dawsonite adsorbent for ultra-efficient removal of Congo red and Cu2+: Adsorption behavior and mechanism study

Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 133314 - 133314

Опубликована: Май 1, 2025

Язык: Английский