Grafting a Porous Metal-Organic Framework [NH2-MIL-101(Fe)] with AgCl Nanoparticles for the Efficient Removal of Congo Red

Qiyue Zhang; Aori Qileng; Jiale Li; Yiran Cao; Weipeng Liu; Yingju Liu

doi:10.1021/acsomega.2c06300

Grafting a Porous Metal-Organic Framework [NH₂-MIL-101(Fe)] with AgCl Nanoparticles for the Efficient Removal of Congo Red

ACS Omega. 2023 Jan 25;8(5):4639-4648. doi: 10.1021/acsomega.2c06300. eCollection 2023 Feb 7.

Authors

Qiyue Zhang¹, Aori Qileng¹, Jiale Li¹, Yiran Cao¹, Weipeng Liu¹, Yingju Liu^{1

2}

Affiliations

¹ Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou510642, China.
² Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou510642, China.

Abstract

Organic dyes can produce harmful effects on the water environment, such as affecting the growth of aquatic organisms, reducing the transparency of water bodies, and causing eutrophication of water bodies, so it is necessary to mitigate the hazards of organic dyes. In this study, a metal-organic framework [NH₂-MIL-101(Fe)] was synthesized by the solvothermal method as a carrier for the in situ uniform deposition of AgCl nanoparticles on its surface, which was successfully used for both adsorption and degradation of Congo red. Adsorption results showed that the adsorption kinetics conformed to the proposed secondary adsorption kinetics equation with a maximum adsorption capacity of 248.4 mg·g^-1. Furthermore, the degradation results indicated that with the aid of sodium borohydride as a reducing agent, the degradation of Congo red followed pseudo-first-order kinetics with a degradation rate of 0.077 min^-1, and the complete degradation of Congo red was finished within 18 min. Therefore, AgCl/NH₂-MIL-101(Fe) may find a potential application in the removal of dyes from wastewater.