Adsorption thermodynamic and kinetic studies of Pb(II) removal from water onto a versatile Al2O3-supported iron oxide

Huang, Yao Hui; Hsueh, Chan Li; Huang, Chun; Su, Lei; Chen, Chuh Yung

doi:10.1016/j.seppur.2006.10.023

Cited by 109 publications

(39 citation statements)

References 24 publications

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“…(1.5) clearly shows the definition of G • , where R is the universal gas constant (8.314 J mol −1 K −1 ), T is the absolute temperature, and K C represents the equilibrium constant which can be expressed as the ratio of adsorption amount (at equilibrium) to the equilibrium concentration. The dependence of equilibrium constant of K C on adsorption temperature can be expressed as follows [23,24]:…”

Section: Resultsmentioning

confidence: 99%

Adsorption and degradation performance of Rhodamine B over BiOBr under monochromatic 532nm pulsed laser exposure

Gondal

Chang

Ali

et al. 2011

Applied Catalysis A: General

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Section: Resultsmentioning

confidence: 99%

Adsorption and degradation performance of Rhodamine B over BiOBr under monochromatic 532nm pulsed laser exposure

Gondal

Chang

Ali

et al. 2011

Applied Catalysis A: General

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“…Our previous studies have explored the ability of BT waste iron oxide as an excellent adsorbent for F , and Pb 2+ removal because of its high surface area and porosity nature [14][15][16]. In this study, we attempted to investigate the feasibility of Mn immobilization onto BT-3 without ferrous addition, and then to develop a novel Mn-Fe binary oxide using fluidized-bed crystallization technology.…”

Section: Introductionmentioning

confidence: 99%

Reduction and Immobilization of Potassium Permanganate on Iron Oxide Catalyst by Fluidized-Bed Crystallization Technology

Huaug

Chen

et al. 2012

Applied Sciences

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A manganese immobilization technology in a fluidized-bed reactor (FBR) was developed by using a waste iron oxide (i.e., BT-3) as catalyst which is a by-product from the fluidized-bed Fenton reaction (FBR-Fenton). It was found that BT-3 could easily reduce potassium permanganate (KMnO 4 ) to MnO 2 . Furthermore, MnO 2 could accumulate on the surface of BT-3 catalyst to form a new Fe-Mn oxide. Laboratory experiments were carried out to investigate the KMnO 4 -reduction mechanism, including the effect of KMnO 4 concentration, BT-3 dosage, and operational solution pH. The results showed that the pH solution was a significant factor in the reduction of KMnO 4 . At the optimum level, pH f 6, KMnO 4 was virtually reduced in 10 min. A pseudo-first order reaction was employed to describe the reduction rate of KMnO 4 .

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“…Freundlich model is an empirical adsorption formula, which assumes adsorption is heterogeneous multilayer process. The Langmuir model can be expressed in the following equation [31,32]:…”

Section: Adsorption Isothermsmentioning

confidence: 99%

“…On the contrary, the Freundlich model is based on a heterogeneous adsorption. The Freundlich isotherm is given as [31,32]:…”

Section: Adsorption Isothermsmentioning

confidence: 99%

Electrospinning-derived [C/Fe3O4]@C coaxial nanocables with tuned magnetism, electrical conduction and highly efficient adsorption trifunctionality

Han

Yang

et al. 2015

J Mater Sci: Mater Electron

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C/Fe 3 O 4 ]@C coaxial nanocables with electricity-magnetism-adsorption trifunctionality have been successfully synthesized by carbonization of the electrospun [polyacrylonitrile (PAN)/ferric acetylacetonate (Fe(acac) 3 )]@polyacrylonitrile (PAN) coaxial nanocables. SEM and TEM observations reveal that the products are coaxial nanocables in morphology. The core diameter is ca. 125 nm and the shell thickness is ca. 82 nm. Electrical and magnetic properties analyses show that the [C/Fe 3 O 4 ]@C coaxial nanocables possess tunable electrical conductivity and magnetic performance. The N 2 adsorption-desorption measurements demonstrate the specific surface area and the pore size of the [C/Fe 3 O 4 ]@C coaxial nanocables are 322.6 m 2 /g and 33.6 nm, respectively. [C/Fe 3 O 4 ]@C coaxial nanocables exhibit efficient adsorption for Rhodamine B and Cu 2? ions aqueous solution with excellent magnetic separation performance. The isotherms and kinetics of adsorption process are determined and analyzed in detail. The excellent adsorption capacity can be attributed to the porous structures, which will make them to be promising adsorbents for water treatment. This work provides a new insight into the design and development of functional carbon-based nanomaterials.

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Adsorption thermodynamic and kinetic studies of Pb(II) removal from water onto a versatile Al2O3-supported iron oxide

Cited by 109 publications

References 24 publications

Adsorption and degradation performance of Rhodamine B over BiOBr under monochromatic 532nm pulsed laser exposure

Adsorption and degradation performance of Rhodamine B over BiOBr under monochromatic 532nm pulsed laser exposure

Reduction and Immobilization of Potassium Permanganate on Iron Oxide Catalyst by Fluidized-Bed Crystallization Technology

Electrospinning-derived [C/Fe3O4]@C coaxial nanocables with tuned magnetism, electrical conduction and highly efficient adsorption trifunctionality

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