Adsorption isotherms and kinetics of methylene blue on a low-cost adsorbent recovered from a spent catalyst of vinyl acetate synthesis

Zhang, Zhengyong; Zhang, Zebiao; Fernández, Yolanda; Menéndez, J.Á.; Niu, Hao; Peng, Jinhui; Zhang, Libo; Guo, Shenghui

doi:10.1016/j.apsusc.2009.10.106

Cited by 76 publications

(32 citation statements)

References 48 publications

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“…A maximum adsorption capacity of MB on the alkali-activated carbon nanotubes of 400 mg/g has been reported [15]. The maximum sorption capacity of MB onto the C-PAAm/PA60.5H is comparable with that of other very effective sorbents [15,17,31], and this recommends it as an excellent alternative for the sorption of cationic dyes.…”

Section: Sorption Isothermsmentioning

confidence: 87%

“…The adsorption capacity of MB onto the inorganic sorbents is also high being 425 mg/g in the case of a regenerated activated carbon used as catalyst support [17]. A maximum adsorption capacity of MB on the alkali-activated carbon nanotubes of 400 mg/g has been reported [15].…”

Section: Sorption Isothermsmentioning

confidence: 98%

“…Activated carbon is perhaps the most widely used sorbent for the removal of dyes from the wastewaters, but it is an expensive material. Therefore, the interest focused on finding novel sorbents with high adsorption capacities, fast adsorption/desorption rate, and easy separation and regeneration strongly increased last decade [12][13][14][15][16][17][18][19][20][21]. Various hydrogels proved to be effective in removing ionic dyes from aqueous solutions [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Enhanced sorption of methylene blue from aqueous solutions by semi-IPN composite cryogels with anionically modified potato starch entrapped in PAAm matrix

Drăgan¹,

Loghin²

2013

Chemical Engineering Journal

108

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Section: Sorption Isothermsmentioning

confidence: 87%

Section: Sorption Isothermsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Enhanced sorption of methylene blue from aqueous solutions by semi-IPN composite cryogels with anionically modified potato starch entrapped in PAAm matrix

Drăgan¹,

Loghin²

2013

Chemical Engineering Journal

108

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“…27 The preparation methods of TNTs include assisted-template 28 method [17], sol-gel process [18], electrochemical anodic oxida- 29 tion [19], and hydrothermal treatment [20]. Among these 30 approaches, hydrothermal method is of special interest as a result 31 of high special surface areas and pore volumes corresponding to 32 well-defined and uniformly tubular structure and abundant 33 hydroxyl groups on the surface of TNTs. It is noteworthy that 34 the protons attached to hydroxyl groups in TNTs prepared by 35 hydrothermal method, such as H + , Na + , may be exchanged with 36 heavy metal ions [14].…”

mentioning

confidence: 99%

Pb(II) adsorption on magnetic γ-Fe2O3/titanate nanotubes composite

Chen

Zhang

et al. 2015

Journal of Environmental Chemical Engineering

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“…The kinetic experimental data were well described by pseudosecond-order model, which is given as follows [30]:…”

Section: Adsorption Mechanismsmentioning

confidence: 99%

Selective recognition of sesamol using molecularly imprinted polymers containing magnetic wollastonite

Xue

Pan

Guan

et al. 2011

J of Separation Science

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The magnetic molecularly imprinted polymers (MMIPs) have been synthesized using piperonal molecules as dummy template and magnetic wollastonite composites as support. The resulting composites were applied to selective recognition of sesamol from aqueous solution. MMIPs were characterized by scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) analysis, transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), thermogravimetric analysis (TGA), and vibrating sample magnetometer (VSM). MMIPs were demonstrated with an imprinted polymer film (90-100 nm) and exhibited magnetic property (M(s) =8.60 emu/g) and thermal stability. The effective average diameter of the Fe(3) O(4) nanoparticles was about 10 nm and the thickness of magnetic film was about 160 nm. Batch mode adsorption studies were carried out to investigate the specific adsorption equilibrium, kinetics and selective recognition. The Langmuir isotherm model was fitted to the equilibrium data better than the Freundlich model, and the kinetic properties were well described by the pseudo-second-order equation. The value of E(a) in this study was 5.35 kJ/mol for MMIPs. In addition, the selective recognition experiments demonstrated that MMIPs have specific recognition ability toward sesamol.

show abstract

Adsorption isotherms and kinetics of methylene blue on a low-cost adsorbent recovered from a spent catalyst of vinyl acetate synthesis

Cited by 76 publications

References 48 publications

Enhanced sorption of methylene blue from aqueous solutions by semi-IPN composite cryogels with anionically modified potato starch entrapped in PAAm matrix

Enhanced sorption of methylene blue from aqueous solutions by semi-IPN composite cryogels with anionically modified potato starch entrapped in PAAm matrix

Pb(II) adsorption on magnetic γ-Fe2O3/titanate nanotubes composite

Selective recognition of sesamol using molecularly imprinted polymers containing magnetic wollastonite

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