甲基橙
光催化
核化学
氢氧化物
材料科学
傅里叶变换红外光谱
尼亚尔
漫反射红外傅里叶变换
热重分析
光降解
无机化学
化学
催化作用
化学工程
有机化学
冶金
金属间化合物
合金
工程类
作者
Iqra Batool,Sadia Aroob,Farheen Anwar,Muhammad Babar Taj,Doaa F. Baamer,Afaf Almasoudi,Omar M. Ali,Reema H. Aldahiri,Fatimah Mohammad H. AlSulami,Muhammad Imran Khan,Aamir Nawaz,Ihsan Maseeh,Muhammad Khalid Nazir,Sónia A. C. Carabineiro,Abdallah Shanableh,Javier Fernández-García
出处
期刊:Catalysts
[Multidisciplinary Digital Publishing Institute]
日期:2024-10-15
卷期号:14 (10): 719-719
被引量:2
标识
DOI:10.3390/catal14100719
摘要
This study synthesized NiAl-layered double hydroxide (LDH)/Cu-MOF photocatalyst using a simple impregnation method involving NiAl-LDH and Cu-MOF. The successful synthesis was confirmed through Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), zeta potential measurements, thermogravimetric analysis (TGA), ultraviolet diffuse reflectance spectroscopy (UV-DRS), N2 adsorption at −196 °C, and electrochemical impedance spectroscopy (EIS). Photocatalysts based on NiAl-LDH, Cu-MOF, and NiAl-LDH/Cu-MOF were used to remove methyl orange (MO) dye from contaminated water. The impact of various factors, including pH, dye concentration, and photocatalyst amount, on MO degradation efficiency was assessed. FTIR analysis was conducted both before and after dye degradation. The optimal degradation conditions were a photocatalyst dose of 25 mg and a pH of 3. Kinetic studies indicated that the degradation of MO dye onto NiAl-LDH/Cu-MOF followed a pseudo-first-order and an L–H or Langmuir–Hinshelwood model. The value of R2 = 0.94 confirms the validity of pseudo-first-order and Langmuir–Hinshelwood (L–H) kinetic models for the photocatalytic degradation of MO dye. This study highlights the importance of developing novel photocatalysts with improved degradation efficiency to protect the water environment. Antibacterial activity was also performed with antibacterial sensibility testing by disk diffusion to determine minimal inhibitory and bactericidal concentrations. In short, NiAl-LDH/Cu-MOF can be helpful for various biomedical and industrial applications.
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