A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Adsorption Kinetic and Thermodynamic Studies of Phosphate onto Tantalum Hydroxide
Tantalum hydroxide exhibits the ability for the removal of phosphate from aqueous solution. The kinetic study, adsorption isotherm, thermodynamic study, desorption, and foreign anions effect were examined in batch experiments. The kinetic process was very well described by a pseudo‐second‐order rate model. The adsorption isotherms showed that phosphate uptake fitted with a Langmuir‐type model very well, with an increase of PO43‐ adsorption capacity from 78.5 to 97.0 mg/g when the temperature increased from 298 to 338 K. The negative values of ΔG0 and the positive values of ΔH0 indicated that the phosphate adsorption process was spontaneous and endothermic naturally. While the ΔS0 values obtained were positive, indicating an increase in randomness at the solid‐liquid interface during the adsorption. Foreign anions tests showed that the presence of competitive ions cause minimal interference with the adsorption of phosphate on tantalum hydroxide.
Adsorption Kinetic and Thermodynamic Studies of Phosphate onto Tantalum Hydroxide
Tantalum hydroxide exhibits the ability for the removal of phosphate from aqueous solution. The kinetic study, adsorption isotherm, thermodynamic study, desorption, and foreign anions effect were examined in batch experiments. The kinetic process was very well described by a pseudo‐second‐order rate model. The adsorption isotherms showed that phosphate uptake fitted with a Langmuir‐type model very well, with an increase of PO43‐ adsorption capacity from 78.5 to 97.0 mg/g when the temperature increased from 298 to 338 K. The negative values of ΔG0 and the positive values of ΔH0 indicated that the phosphate adsorption process was spontaneous and endothermic naturally. While the ΔS0 values obtained were positive, indicating an increase in randomness at the solid‐liquid interface during the adsorption. Foreign anions tests showed that the presence of competitive ions cause minimal interference with the adsorption of phosphate on tantalum hydroxide.
Adsorption Kinetic and Thermodynamic Studies of Phosphate onto Tantalum Hydroxide
Yu, Shi‐Hua (author) / Dong, Xiao‐Le (author) / Gong, Hong (author) / Jiang, Heng (author) / Liu, Zhi‐Gang (author)
Water Environment Research ; 84 ; 2115-2122
2012-12-01
8 pages
Article (Journal)
Electronic Resource
English
Improvement of Phosphate Adsorption Kinetics onto Ferric Hydroxide by Size Reduction
| DOAJ | 2021
Equilibrium, kinetic and thermodynamic studies on the adsorption of phenol onto graphene
| British Library Online Contents | 2012
Adsorption Isotherm, Kinetic and Thermodynamic Studies of Nitrates and Nitrites onto Fish Scales
| Springer Verlag | 2022
Kinetic and Thermodynamic Studies of Adsorption of Phosphate on Steel-Slag Filter Material
| British Library Conference Proceedings | 2014