Adsorption for copper(II) ion with chitosan-SP/PET composite adsorbent enhanced by electric field

Song, Yunfei; Kong, Aiqun; Ji, Yanhong; He, Benqiao; Hong, Wang; Li, Jianxin

doi:10.1177/0263617419825505

Cited by 12 publications

(4 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this work, the equilibrium adsorption experimental data for removing Rhodamine B from solution on CT269DR resin were evaluated by the Langmuir and Freundlich isotherms, which are the two most commonly used isotherm models (Crini et al., 2007). The non-linear forms of two models were expressed by the following equations (5) and (6), respectively (Song et al., 2019; Yang et al., 2015) where q m (mg g −1 ) and K L (l mg −1 ) are the Langmuir constants related to the maximum adsorption capacity of Rhodamine B and the free energy of adsorption, respectively. K F ((mg g −1 )/(mg l −1 ) 1/ n ) and n are the Freundlich constants, where K F and n are the constants representing the adsorption capacity and intensity of adsorption, respectively.…”

Section: Resultsmentioning

confidence: 99%

Section: Adsorption Isothermmentioning

confidence: 99%

See 1 more Smart Citation

Rhodamine B removal from aqueous solution by CT269DR resin: Static and dynamic study

Yang

Shu-yue

Chen

et al. 2019

Adsorption Science & Technology

View full text Add to dashboard Cite

The adsorption of Rhodamine B onto CT269DR resin has been studied through static and dynamic experiments. The effects of shaking speed, resin dosage, and pH on adsorption were investigated by static experiments. The external mass transfer rate remains substantially unchanged when the shaking speed exceeds 160 r min−1. The optimal pH range is 5–8, and an increase of resin dosage can directly improve the percentage of removal of Rhodamine B. The equilibrium isotherm data of Rhodamine B on CT269DR resin fit the Langmuir adsorption isotherm well. The thermodynamics parameters, Δ H = 69.93 kJ mol−1, Δ S = 326.73 J mol−1 K−1, and Δ G < 0, demonstrate that the adsorption of Rhodamine B onto CT269DR resin is spontaneous and endothermic. The pseudo first-order kinetic model can be successfully used to represent the adsorption process and the activation energy is 25.7 kJ mol−1. The dynamic experiments show that the breakthrough point is advanced when the flow rate increases and the bed adsorption capacity increases with increasing temperature. Furthermore, the desorption using the solution of 2% NaOH is suitable for desorption and reusing process, and scanning electron microscope (SEM) and fourier transform infrared spectroscopy (FT-IR) analysis reveals that used resin has good wear resistance and chemical stability. The results confirm that CT269DR resin can be employed as an efficient adsorbent for the removal of Rhodamine B from wastewater.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Adsorption Isothermmentioning

confidence: 99%

Rhodamine B removal from aqueous solution by CT269DR resin: Static and dynamic study

Yang

Shu-yue

Chen

et al. 2019

Adsorption Science & Technology

View full text Add to dashboard Cite

show abstract

“…This porous structure can increase the active sites for metal ion adsorption and improve adsorption performance. It can be seen from Figure 3b that ZIF-8 was uniformly distributed on the hierarchical surface of the MGO, and the fully exposed surface could provide more attachment sites for copper ions, which effectively improves the adsorption performance of the composites [44,45].…”

Section: Sem and Afm Analysismentioning

confidence: 99%

Multilayer Graphene Oxide Supported ZIF-8 for Efficient Removal of Copper Ions

Zhang

Wang

et al. 2022

Nanomaterials

View full text Add to dashboard Cite

To address the performance deterioration of ZIF-8 for the adsorption of copper ions caused by powder volume pressure and particle aggregation, we employed multilayer graphene oxide (MGO) as a support to prepare composite adsorbents (MGO@ZIF-8) by using the in situ growth of ZIF-8 on MGO. Due to a good interfacial compatibility and affinity between ZIF-8 and graphene nanosheets, the MGO@ZIF-8 was successfully prepared. The optimal Cu2+ adsorption conditions of MGO@ZIF-8 were obtained through single factor experiments and orthogonal experiments. Surprisingly, the Cu2+ adsorption capacity was significantly improved by the integration of MGO and ZIF-8, and the maximum Cu2+ adsorption capacity of MGO@ZIF-8 reached 431.63 mg/g under the optimal adsorption conditions. Furthermore, the kinetic fitting and isotherm curve fitting confirmed that the adsorption law of Cu2+ by MGO@ZIF-8 was the pseudo-second-order kinetic model and the Langmuir isotherm model, which indicated that the process of Cu2+ adsorption was monolayer chemisorption. This work provides a new approach for designing and constructing ZIF-8 composites, and also offers an efficient means for the removal of heavy metals.

show abstract

“…Various adsorbents have been applied in the field of disposal of the waste water containing heavy metal ions. Including activated carbon, zeolite, Chitosan, ion‐exchange resin, nano metal oxide, composite adsorbent, etc [10–27] …”

Section: Introductionmentioning

confidence: 99%

Preparation of Poly(acrylic acid) ‐Boron Nitride Composite as a Highly Efficient Adsorbent for Adsorptive Removal of Heavy Metal Ions

2021

ChemistrySelect

View full text Add to dashboard Cite

The poly(acrylic acid)‐boron nitride composite was prepared by radical initiated polymerization in situ with N,N′‐methylenebisacrylamide (MBAA) as a crosslinker and potassium persulfate (KPS) as an initiator and the structure of poly(acrylic acid)‐boron nitride were characterized by Fourier Transform infrared spectroscopy (FT‐IR), scanning electron microscope (SEM). The ability of poly(acrylic acid)‐boron nitride as adsorbent for adsorptive removal of heavy metal ion from aqueous solutions was investigated. The effects of poly(acrylic acid)‐boron nitride dosage, pH, adsorption time, initial metal ion concentration and temperature on adsorption efficiency were also studied. Kinetics data followed best by pseudo‐second‐order model with the correlation coefficient (R2) of 0.997. The equilibrium adsorption data was well fitted to Langmuir isotherm models for Cu(II). The adsorption capacities (qmax) of poly(acrylic acid)‐boron nitride composite for Cu(II) was 46.72 mg/g. The results of thermodynamic equilibrium constant and the Gibbs free energy indicated the spontaneous nature of the adsorption process.

show abstract

Adsorption for copper(II) ion with chitosan-SP/PET composite adsorbent enhanced by electric field

Cited by 12 publications

References 34 publications

Rhodamine B removal from aqueous solution by CT269DR resin: Static and dynamic study

Rhodamine B removal from aqueous solution by CT269DR resin: Static and dynamic study

Multilayer Graphene Oxide Supported ZIF-8 for Efficient Removal of Copper Ions

Preparation of Poly(acrylic acid) ‐Boron Nitride Composite as a Highly Efficient Adsorbent for Adsorptive Removal of Heavy Metal Ions

Contact Info

Product

Resources

About