Silver decorated on cobalt ferrite nanoparticles as a reusable multifunctional catalyst for water treatment applications in non-radiation conditions.
Le Thi Ngoc HoaAn Nang VuVo Huynh Tra MyPham Thi Thu GiangLe Khac TopHa Thuc Chi NhanThang Bach PhanThi Thanh Van TranHieu Van LePublished in: RSC advances (2023)
In this investigation, cobalt ferrite nanoparticles (CFO NPs) were synthesized using a hydrothermal method. Then, silver nanoparticles (Ag NPs) were decorated on CFO NPs to form Ag/CFO NPs using jasmine extract as a reducing agent of Ag + ions. The properties of Ag/CFO NPs were characterized by X-ray powder diffraction, field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier-transform infrared spectroscopy, vibrating sample magnetometry, and catalytic tests in non-radiation conditions. The catalytic results indicated that the Ag/CFO NPs could activate peroxymonosulfate to generate sulfate radicals for the decomposition of different dyes such as methylene blue, methyl orange, and rhodamine B. For the Ag/CFO sample, Ag NPs validated the roles in dye adsorption, reduction of 4-nitrophenol, and improvement of antibacterial behavior. The growth inhibition activity of Ag/CFO NPs was observed against Pseudomonas aeruginosa (18.18 ± 2.48 mm) and Staphylococcus aureus (10.14 ± 0.72 mm). Furthermore, Ag/CFO NPs displayed good reusability after three consecutive runs. Therefore, Ag/CFO material is shown to be a potential multifunctional catalyst in wastewater treatment.
Keyphrases
- quantum dots
- highly efficient
- visible light
- electron microscopy
- silver nanoparticles
- wastewater treatment
- oxide nanoparticles
- high resolution
- pseudomonas aeruginosa
- staphylococcus aureus
- reduced graphene oxide
- drug delivery
- ionic liquid
- cystic fibrosis
- gold nanoparticles
- climate change
- escherichia coli
- computed tomography
- cancer therapy
- magnetic resonance
- magnetic resonance imaging
- multidrug resistant
- risk assessment
- smoking cessation
- combination therapy
- contrast enhanced
- carbon dioxide
- crystal structure
- human health
- acinetobacter baumannii
- antibiotic resistance genes
- solid state
- dual energy