The use of starch-modified magnetic Fe0 nanoparticles for naphthalene adsorption from water samples: Adsorption isotherm, kinetic and thermodynamic studies

2018 ◽  
Vol 32 (8) ◽  
pp. e4434 ◽  
Author(s):  
Maryam Malekzadeh ◽  
Arezoo Nejaei ◽  
Mohammad Mehdi Baneshi ◽  
Esmaeel Panahi Kokhdan ◽  
Hassan Bardania
Keyword(s):  
Adsorption Isotherm ◽  
Water Samples ◽  
Thermodynamic Studies ◽  
Kinetic And Thermodynamic Studies

Dyeing Properties of Berberine on Cationic Dyeable Polyester

2019 ◽  
Vol 6 (6) ◽  
pp. 32-37
Author(s):  
Jiliang Cao ◽  
Chunli Meng ◽  
Hong Zhao
Keyword(s):  
Adsorption Isotherm ◽  
Adsorption Properties ◽  
Langmuir Model ◽  
Color Strength ◽  
Thermodynamic Studies ◽  
Dyeing Properties ◽  
Influence Of Ph ◽  
Kinetic And Thermodynamic Studies

The natural cationic colorant berberine was used to dye cationic dyeable polyester (CDP) fibers. Its dyeing properties, namely color strength (K/S) of dyed CDP and percent exhaustion (E%) of berberine, on CDP were explored at various dyeing pH levels, temperatures, time, and concentration of berberine. Furthermore, dyeing kinetic and thermodynamic studies were also carried out to evaluate the adsorption properties and mechanism. It was found that theE% of berberine on CDP fibers and the rate of adsorption increased with increasing dyeing temperature, while the influence of pH was extraordinarily small. In addition, the adsorption isotherm of berberine on CDP fibers was in line with the Langmuir model.

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