Details

Autor(en) / Beteiligte

• Nguyen, Thu Phuong
• Nguyen, Thi Thom
• Pham, Thi Nam
• Do, Thi Hai
• Osial, Magdalena
• Le, Minh Khoi
• Nguyen, Hong Nam
• Le, Phuong Thu
• Dinh, Thi Mai Thanh

Titel

Metal organic framework composite based on CuBTC/SPION for application in methylene blue adsorption

Ist Teil von

• Clean : soil, air, water, 2024-05, Vol.52 (5), p.n/a

Ort / Verlag

Weinheim: Wiley Subscription Services, Inc

Erscheinungsjahr

2024

Quelle

Wiley-Blackwell Journals

Beschreibungen/Notizen

• In this work, a composite (CuBTC/superparamagnetic iron oxide nanoparticles [SPION]) based on copper, benzene‐1,3,5‐tricarboxylic acid (CuBTC) and SPION was synthesized by electrochemical method for the magnetic separation of methylene blue (MB) from aqueous solutions. The synthesis of the proposed composite was carried out under various experimental conditions from 1.4 to 5.4 V for 1–5 h and subsequently studied using different techniques. Scanning electron microscopy showed a granular structure, whereas Brunauer–Emmett–Teller results revealed a well‐developed surface area of around 182 m2 g−1. Fourier transform infrared confirmed the presence of functional groups characteristic to CuBTC and Fe3O4, whereas X‐ray diffraction revealed the phase structure of CuBTC 1D, CuBTC 3D, and Fe3O4 in the obtained composite. Based on the experimental results, the sample synthesized under a potential of 1.4 V for 5 h was selected for MB adsorption studies in the function of adsorbent mass, contact time, solution pH, ionic strength, initial concentration, and temperature. The maximum adsorption capacity was 681 mg g−1, and the adsorption undergoes the Redlich–Peterson and Sips isotherm model. The results obtained for CuBTC/SPION indicate that the nanocomposite is a promising adsorbent for removing MB in synthetic dye water and wastewater. Graphical : CuBTC/SPION was synthesized electrochemically. The proposed composite has a specific surface area of about 182 m2 g−1 with pores size below 4 nm. CuBTC/SPION shows a high adsorption capacity of about 681 mg g−1 and therefore is an effective adsorbent for MB removal.