Effective Removal of Sulfonamides Using Recyclable MXene-Decorated Bismuth Ferrite Nanocomposites Prepared via Hydrothermal Method

Pascaline Sanga; Juanjuan Wang; Xin Li; Jia Chen; Hongdeng Qiu

doi:10.3390/molecules28041541

Effective Removal of Sulfonamides Using Recyclable MXene-Decorated Bismuth Ferrite Nanocomposites Prepared via Hydrothermal Method

Molecules. 2023 Feb 5;28(4):1541. doi: 10.3390/molecules28041541.

Authors

Pascaline Sanga^{1

2}, Juanjuan Wang¹, Xin Li¹, Jia Chen¹, Hongdeng Qiu^{1

2

3}

Affiliations

¹ CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
² University of Chinese Academy of Sciences, Beijing 100049, China.
³ College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.

Abstract

Developing a simple and efficient method for removing organic micropollutants from aqueous systems is crucial. The present study describes the preparation and application, for the first time, of novel MXene-decorated bismuth ferrite nanocomposites (BiFeO₃/MXene) for the removal of six sulfonamides including sulfadiazine (SDZ), sulfathiazole (STZ), sulfamerazine (SMZ), sulfamethazine (SMTZ), sulfamethoxazole (SMXZ) and sulfisoxazole (SXZ). The properties of BiFeO₃/MXene are enhanced by the presence of BiFeO₃ nanoparticles, which provide a large surface area to facilitate the removal of sulfonamides. More importantly, BiFeO₃/MXene composites demonstrated remarkable sulfonamide adsorption capabilities compared to pristine MXene, which is due to the synergistic effect between BiFeO₃ and MXene. The kinetics and isotherm models of sulfonamide adsorption on BiFeO₃/MXene are consistent with a pseudo-second-order kinetics and Langmuir model. BiFeO₃/MXene had appreciable reusability after five adsorption-desorption cycles. Furthermore, BiFeO₃/MXene is stable and retains its original properties upon desorption. The present work provides an effective method for eliminating sulfonamides from water by exploiting the excellent texture properties of BiFeO₃/MXene.

Keywords: MXene; adsorption; bismuth ferrite; nanocomposite; sulfonamide.

MeSH terms

Adsorption
Bismuth
Kinetics
Nanocomposites*
Sulfanilamide
Sulfonamides
Water
Water Pollutants, Chemical* / analysis

Substances

Sulfonamides
ferrite
Bismuth
MXene
Sulfanilamide
Water
Water Pollutants, Chemical

Grants and funding

This research was funded the National Key Research and Development Program of China (2019YFC1905501), the National Natural Science Foundation of China (No. 21822407), the Organization for Women in Science for Developing World (OWSD), and Swedish International Development Cooperation Agency (SIDA).