Work

An innovative and efficient strategy for removing Congo red using magnetic hollow Zn/Co zeolitic imidazolate framework composite

Year: 2024

Type: article

Abstract: The discharge of wastewater containing Congo red (CR) poses a significant threat to aquatic ecosystems and human health, underscoring the urgent need for effective removal methods. In this study, we have developed a novel strategy for efficient removing CR, utilizing the synthesized magnetic hollow Zn/Co zeolitic imidazolate framework composite (MH-ZIF). Comprehensive characterization of MH-ZIF and comparison with contrasting materials were conducted. The adsorption behavior of MH-ZIF towards CR followed the pseudo-second-order kinetic model and Langmuir isothermal adsorption model, demonstrating monolayer chemisorption . Remarkably, MH-ZIF exhibited an impressive adsorption capacity of 1167.9 mg g −1 for CR at 293 K. The addition of merely 0.15 g L −1 of MH-ZIF achieved nearly complete adsorption of CR within a concentration of 150 mg L −1 . With the assistance of an external magnetic field, CR adsorbed on MH-ZIF can be effectively and swiftly removed within just 30 s. Hence, MH-ZIF demonstrates great promise in effectively removing CR from wastewater, attributed to its high adsorption capacity, selectivity, and magnetic properties .

Source: Environmental Research

DOI: 10.1016/j.envres.2024.120399

Authors: Yu Su, Yanjie Wang, Lan Ding, Yanhua Chen, Daqian Song

Institution: Jilin University

Language: English

Topic: Adsorption and biosorption for pollutant removal

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDGs: Clean water and sanitation, Responsible consumption and production

Open Access status: hybrid

Estimated APC paid: $3,590