Work

Influence of pyrolysis conditions on the adsorbent properties of hazelnut shell biochar to remove paracetamol, amoxicillin, and triclosan

Year: 2025

Type: article

Abstract: This study optimized the production of biochar from hazelnut shells for the adsorption of paracetamol, amoxicillin, and triclosan from water. Biochar was produced under 27 conditions (temperature: 500–900 °C, time: 0.5–2 h, particle size: 150–2000 μm). Physicochemical and instrumental analyses, as well as batch adsorption tests, characterized the samples. Temperature (900 °C) is the most significant factor influencing biochar properties and adsorption performance. Adsorption data fitted well with heterogeneous isotherm models, including the Sips model and multilayer/monolayer models. The maximum adsorption capacities for paracetamol, amoxicillin, and triclosan were 19.973, 2.992, and 2.678 mg/g, respectively. Biochar-based adsorption systems with water treatment applications will be scaled.

Source: Case Studies in Chemical and Environmental Engineering

DOI: 10.1016/j.cscee.2025.101251

Authors: Paula Madariaga-Segovia, Cristina A. Villamar-Ayala, Norma Ramos, Margarita Sánchez-Domínguez, Roberto Lavín

Institutions: Universidad de Santiago de Chile, Instituto Tecnológico de Nuevo Leon, Centro de Investigación en Materiales Avanzados, Universidad Diego Portales

Language: English

Topic: Adsorption and biosorption for pollutant removal

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDGs: Responsible consumption and production, Clean water and sanitation

Open Access status: gold

Estimated APC paid: $760