Adsorption of Cefocelis Hydrochloride on Macroporous Resin: Kinetics, Equilibrium, and Thermodynamic Studies

Xue, Feng; Yingting, Xu; Lu, Shizhao; Ju, Shengui; Xing, Weihong

doi:10.1021/acs.jced.6b00174

Cited by 16 publications

(9 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For calculating these parameters, K L (Langmuir constant), K d (solute coefficient distribution), and C e (equilibrium fluoride concentration) which changes with temperature are given in Tables – . In this study, thermodynamic parameters were calculated by eqs –. − …”

Section: Results and Discussionmentioning

confidence: 99%

Adsorption Equilibrium, Kinetics, and Thermodynamic Studies of Fluoride Adsorbed by Tetrametallic Oxide Adsorbent

2018

View full text Add to dashboard Cite

This study investigated the performance of fluoride adsorption onto a specific tetrametallic oxide adsorbent Fe–Al–Ce-Ni (FACN) and the effect of temperature on adsorption performance. The adsorption performance was determined by adsorption equilibrium, kinetics, and thermodynamic parameters. The adsorption, kinetic, and thermodynamic parameters were compared alternatively. The fluoride adsorption capacity was obtained from four different adsorption isotherm models, namely, Langmuir, Freundlich, Temkin, and Dubinin–Radushkevich (D–R), and Freundlich was found to best fit model. Fluoride removal rate using adsorption (0.27 min–1) was obtained faster than reactive adsorption (0.04 min–1). Several thermodynamic parameters such as enthalpy, Gibbs free energy, entropy (ΔS > 0), and adsorption activation energy were calculated which demonstrated the feasibility and spontaneity (ΔG < 0) and exothermic nature of (ΔH < 0) the fluoride adsorption process. The adsorption process was controlled by a physical mechanism, and the maximum adsorption capacity was found to be 250 mg/g. To our knowledge, this is the first report on the synthesis of tetrametallic oxide adsorbent for fluoride adsorption, and the feasibility of the adsorption process was ratified by three van’t Hoff plots.

show abstract

Section: Results and Discussionmentioning

confidence: 99%

Adsorption Equilibrium, Kinetics, and Thermodynamic Studies of Fluoride Adsorbed by Tetrametallic Oxide Adsorbent

2018

View full text Add to dashboard Cite

show abstract

“…The negative value of enthalpy (Δ H °) indicates the endothermic nature of the biosorption of Cr(VI) onto SS/KL beads. The negative values of entropy (Δ S °) represent an increase in randomness at the Cr(VI)-SS/KL bead interface during the adsorption process [ 52 ].…”

Section: Resultsmentioning

confidence: 99%

Preparation of Silk Sericin/Lignin Blend Beads for the Removal of Hexavalent Chromium Ions

Kwak

Shin

Yun

et al. 2016

IJMS

View full text Add to dashboard Cite

In the present study, novel adsorbents having high adsorption capability and reusability were prepared using agricultural by-products: silk sericin and lignin. Silk sericin and lignin blend beads were successfully prepared using simple coagulation methods for the removal of hexavalent chromium (Cr(VI)) from aqueous solution. A 1 M lithium chloride (LiCl)/dimethyl sulfoxide (DMSO) solvent system successfully dissolved both sericin and lignin and had sufficient viscosity for bead preparation. Compared to the conventional sericin bead adsorbent, sericin/lignin blend beads showed higher Cr(VI) adsorption capacity. The amount of lignin added to the adsorbent greatly affected the adsorption capacity of the beads, and a 50:50 sericin/lignin blend ratio was optimal. Adsorption behavior followed the Freundlich isotherm, which means the adsorption of Cr(VI) occurred on the heterogeneous surface. Cr(VI) adsorption capability increased with temperature because of thermodynamic-kinetic effects. In addition, over 90% of Cr(VI) ions were recovered from the Cr(VI) adsorbed sericin/lignin beads in a 1 M NaOH solution. The adsorption-desorption recycling process was stable for more than seven cycles, and the recycling efficiency was 82%. It is expected that the sericin/lignin beads could be successfully applied in wastewater remediation especially for hazardous Cr(VI) ions in industrial wastewater.

show abstract

“…The data of the HMO adsorption capacity was fitted by a simplified Crank's single-hole diffusion model to obtain an efficient film coefficient (D e ) by Equation (2) [24,25].…”

Section: Static Kinetic Testmentioning

confidence: 99%

A Facile Synthesis of Hexagonal Spinel λ-MnO2 Ion-Sieves for Highly Selective Li+ Adsorption

et al. 2018

Self Cite

View full text Add to dashboard Cite

Abstract:Ion-sieves are a class of green adsorbent for extraction Li + from salt lakes. Here, we propose a facile synthesis of hexagonal spinel LiMn 2 O 4 (LMO) precursor under mild condition which was first prepared via a modified one-pot reduction hydrothermal method using KMnO 4 and ethanol. Subsequently, the stable spinel structured λ-MnO 2 (HMO) were prepared by acidification of LMO. The as-prepared HMO shows a unique hexagonal shape and can be used for rapid adsorption-desorption process for Li + adsorption. It was found that Li + adsorption capacity of HMO was 24.7 mg·g −1 in Li + solution and the HMO also has a stable structure with manganese dissolution loss ratio of 3.9% during desorption process. Moreover, the lithium selectivity (α Li Mg ) reaches to 1.35 × 10 3 in brine and the distribution coefficients (K d ) of Li + is much greater than that of Mg 2+ . The results implied that HMO can be used in extract lithium from brine or seawater containing high ratio of magnesium and lithium.

show abstract

Adsorption of Cefocelis Hydrochloride on Macroporous Resin: Kinetics, Equilibrium, and Thermodynamic Studies

Cited by 16 publications

References 31 publications

Adsorption Equilibrium, Kinetics, and Thermodynamic Studies of Fluoride Adsorbed by Tetrametallic Oxide Adsorbent

Adsorption Equilibrium, Kinetics, and Thermodynamic Studies of Fluoride Adsorbed by Tetrametallic Oxide Adsorbent

Preparation of Silk Sericin/Lignin Blend Beads for the Removal of Hexavalent Chromium Ions

A Facile Synthesis of Hexagonal Spinel λ-MnO2 Ion-Sieves for Highly Selective Li+ Adsorption

Contact Info

Product

Resources

About