A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
O-Modified Activated Carbon Fiber Electrode Efficiently Adsorption of Cu (II) in Wastewater
At present, wastewater discharged from many industries contains a large amount of Cu (II). In this study, an O-modified activated carbon fiber (O-ACF) with high adsorption activity was prepared by oxidation modification of activated carbon fiber with 20% nitric acid. O-ACF was used to adsorb Cu (II) in water. Electrode adsorption experiments showed that O-ACF had excellent electro-adsorption performance for Cu (II), and the maximum adsorption capacity was 48.60 mg/g, which was 1.63 times that of commercial activated carbon. After optimizing and adjusting the voltage (0.6–1.2 V), pH (2–10) and electrode plate spacing (5–20 mm), it was found that the most favorable working conditions for electro-adsorption of Cu (II) by O-ACF electrode were voltage of 1.0 V, solution pH of about 6, and electrode plate spacing of 10 mm. The kinetic model fitting showed that the adsorption effect of O-ACF on Cu (II) was mainly chemical adsorption. The intraparticle diffusion model further found that the adsorption of Cu (II) by O-ACF was influenced by membrane diffusion and internal diffusion. Adsorption regeneration experiment showed that O-ACF still maintained 95% adsorption performance for Cu (II) after 5 times of adsorption regeneration, which had good practicability. This study provides an excellent material for capacitive deionization system, which is expected to be applied in sewage treatment, seawater desalination and nutrient recovery.
O-Modified Activated Carbon Fiber Electrode Efficiently Adsorption of Cu (II) in Wastewater
At present, wastewater discharged from many industries contains a large amount of Cu (II). In this study, an O-modified activated carbon fiber (O-ACF) with high adsorption activity was prepared by oxidation modification of activated carbon fiber with 20% nitric acid. O-ACF was used to adsorb Cu (II) in water. Electrode adsorption experiments showed that O-ACF had excellent electro-adsorption performance for Cu (II), and the maximum adsorption capacity was 48.60 mg/g, which was 1.63 times that of commercial activated carbon. After optimizing and adjusting the voltage (0.6–1.2 V), pH (2–10) and electrode plate spacing (5–20 mm), it was found that the most favorable working conditions for electro-adsorption of Cu (II) by O-ACF electrode were voltage of 1.0 V, solution pH of about 6, and electrode plate spacing of 10 mm. The kinetic model fitting showed that the adsorption effect of O-ACF on Cu (II) was mainly chemical adsorption. The intraparticle diffusion model further found that the adsorption of Cu (II) by O-ACF was influenced by membrane diffusion and internal diffusion. Adsorption regeneration experiment showed that O-ACF still maintained 95% adsorption performance for Cu (II) after 5 times of adsorption regeneration, which had good practicability. This study provides an excellent material for capacitive deionization system, which is expected to be applied in sewage treatment, seawater desalination and nutrient recovery.
O-Modified Activated Carbon Fiber Electrode Efficiently Adsorption of Cu (II) in Wastewater
Zibo Xiao (author) / Xinkun Zhao (author) / Junjie Gu (author) / Zhe Hu (author) / Hongkai Fan (author) / Qingfeng Chen (author)
2023
Article (Journal)
Electronic Resource
Unknown
Metadata by DOAJ is licensed under CC BY-SA 1.0
Adsorption kinetics of reactive dye onto modified palm fiber activated carbon
| British Library Online Contents | 2014
Adsorption of Paracetamol in Hospital Wastewater Through Activated Carbon Filters
| DOAJ | 2019
Surface-modified activated carbon with -cyclodextrinPart II. Adsorption properties
| Online Contents | 2010
Activated carbon fiber composites for ammonia, methane and hydrogen adsorption
| Oxford University Press | 2006
Adsorption of Heavy Metallic Ions in Electroplating Wastewater by Modified Acrylic Fiber
| British Library Online Contents | 2005