Adsorption mechanism of ammonia nitrogen by green-modified zeolite: a particle-Level investigation

Highly efficient phosphate adsorption and interface interaction mechanism by UiO-66-COOH

Phosphate-induced eutrophication poses a critical water quality concern, and adsorption offers an effective remediation approach, yet conventional adsorbents suffer from limited capacity and poor reusability. In this study, a carboxyl-functionalized zirconium-based metal-organic framework (UiO-66-COOH) was synthesized...

Study on the adsorption performance and mechanism of Mn2+ in acidic mine wastewater by Rhodopseudomonas sphaeroides modified lignite

Valorization of N-doped biochar into Fe-Cu loaded carbon catalyst from electroplating wastewater: Structure regulation, adsorption performance, and catalytic properties.

The efficient removal and resource recovery of high-concentration heavy metals like Fe3⁺ and Cu2⁺ from electroplating wastewater remains a critical challenge. Herein, a sustainable closed-loop "adsorption-transformation-upcycling" strategy was proposed. Initially, a nitrogen-doped and CaO-activated pinewood biochar (N-...

Manganese(II) removal from aqueous solutions by adsorption on drinking water treatment sludge

Water treatment plant (WTP) sludge was used as a low-cost adsorbent for manganese (Mn(II)) removal from aqueous solutions. The sludge was subjected to thermal treatment (80–500 °C) and chemical activation with KOH to enhance its physicochemical properties. The activated material exhibited increased porosity and surface...

Sustainable Valorization of Pb(II)-Loaded Inga edulis Biomass: From Adsorption to Oxygen Evolution Electrocatalysis

This work reports on the removal of Pb(II) ions from aqueous solution using Inga edulis biomass modified with sulfuric acid (BMIGA), evaluating its performance in a fixed-bed system and potential ecotoxicological effects after the adsorption process. Physicochemical characterization of the material showed that the modi...

RGO-modified MnFe₂O₄/BiOI Nanocomposite for Efficient Nitrate Removal: Kinetic, Isotherm, and Thermodynamic Analysis