Work

Specific nickel recovery using screen-printed carbon electrode electrografted with ionic liquid

Year: 2024

Type: article

Abstract: This study presents an innovative electrochemical method for selectively extracting nickel ions from aquatic solutions, employing electrodes enhanced with electrografted ionic liquids. Specifically, a styrenyl-imidazolium ionic liquid (SI-IL) was synthesized, featuring a double bond for immobilization and an imidazole group targeting nickel ions. The electrografting process ensured uniform SI-IL distribution on the electrode's surface, as confirmed by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). SI-IL-treated electrodes exhibited notable selectivity towards nickel ions, efficiently recovering them as nanoparticles while reducing the required reduction potential. In pH conditions similar to industrial wastewater, SI-IL modified electrodes demonstrated substantial enhancement in nickel recovery rates compared to unmodified electrodes.

Source: Environmental Pollution

DOI: 10.1016/j.envpol.2024.125426

Authors: Chun-Hao Tai, Shih-Hao Lin, Meng-Shun Huang, Hsiang-Yu Wang

Institutions: National Tsing Hua University, Centre National de la Recherche Scientifique, Université Paris-Saclay, Centre de Nanosciences et de Nanotechnologies, Industrial Technology Research Institute

Language: English

Topic: Extraction and Separation Processes

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Clean water and sanitation

Open Access status: hybrid

Estimated APC paid: $3,920