Synthesis of ZIF‐8/GO for the Removal of Congo Red From Wastewater With a High Salt Concentration

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(1)

Published: Jan. 1, 2025

Abstract Dye wastewater is high‐concentration salt‐containing chemical wastewater. It contains numerous toxic pollutants that are difficult to degrade, and its direct discharge without treatment will cause serious environmental problems. Herein, ZIF‐8/GO adsorbent was prepared by the one‐pot method purify containing Congo red dye (CR). possessed an S BET of 70.252 m 2 /g, pore volume 0.036 cm 3 size 3.22 nm. Adsorption experiments were performed based on various parameters, such as pH, concentration, dose, temperature, salt concentration. The results showed adsorption capacity better than ZIF‐8 GO for CR, which process 0.1‐ZIF‐8/GO (10.0 mg) CR (50 mg/L) reached equilibrium in 60 min at 35 °C under high‐salt parameter (10 g/L NaCl). And maximum removal ratio up 98%. data fitted using Langmuir, Freundlich isotherm models pseudo‐first‐order, pseudo‐second‐order kinetics model liquid film diffusion model, intra‐particle model. indicated quasi‐second‐order kinetic more suitable describe ZIF‐8/GO. possesses a high it has promising applications salts‐containing

Language: Английский

Recycling paper sludge into hydrochar and ZnO nanocomposite for enhanced ammonium adsorption in aqueous solutions

RSC Advances, Journal Year: 2025, Volume and Issue: 15(9), P. 6634 - 6651

Published: Jan. 1, 2025

This study investigates the ammonium (NH 4 + ) adsorption capabilities of hydrochar derived from paper waste sludge (PWSH) and its modified variant with ZnO (PWSH@ZnO).

Language: Английский

Easily recyclable magnetic polyacrylamide/sodium alginate/Fe3O4@ZIF-8 hydrogel beads for effective removal of Congo Red

Journal of Polymer Research, Journal Year: 2024, Volume and Issue: 31(12)

Published: Nov. 27, 2024

Language: Английский