Adsorption of phenolic compounds from aqueous solutions by a water-compatible hypercrosslinked polymeric adsorbent

Li, Aimin; Zhang, Quanxing; Zhang, Gencheng; Chen, Jinlong; Fei, Zhenghao; Liu, Fuqiang

doi:10.1016/s0045-6535(01)00222-3

Cited by 256 publications

(142 citation statements)

References 26 publications

Supporting

Mentioning

136

Contrasting

Unclassified

Order By: Relevance

“…According to Weber (1972), the behavior of the isotherms of caffeic ( Figure 4A) and ferulic ( Figure 4B) acids indicates favorable adsorption, the behavior of the catechin isotherm ( Figure 3) at pH 7.0 indicates unfavorable adsorption, and the linear behavior of the catechin isotherm at pH 2.0 indicates an intermediate process. Some authors have observed similar behaviors by adsorption isotherms of PCs in synthetic resins (Li et al, 2002;Bilgili, 2006;Pompeu et al, 2010;Gao et al, 2013).…”

Section: Adsorption Isothermsmentioning

confidence: 68%

“…Microcrystalline cellulose has a specific area of 2.39 m 2 /g (Padilha et al, 1995), whereas this value varies between 400 and 1200 m 2 /g for macroporous resins (McCabe et al, 2005;Pompeu et al, 2010). Dther phenols also showed superior adsorption on synthetic resins and other materials (Li et al, 2002;Bilgili, 2006;Strachowski & Bystrzejewski, 2015).…”

Section: Adsorption Kineticsmentioning

confidence: 99%

See 1 more Smart Citation

Adsorption capacity of phenolic compounds onto cellulose and xylan

Costa¹,

Rogez²,

Pena³

2015

Food Sci. Technol (Campinas)

View full text Add to dashboard Cite

The interaction between three phenolic compounds (catechin, caffeic acid and ferulic acid) onto two dietary fibres (cellulose and xylan) has been evaluated to inquire possible interferences on the biodisponibility of phenolic compounds. The adsorption kinetics were performed using solutions containing 100 mg/L of phenolic compounds during a contact time ranging between 10 and 120 minutes at pH 2.0, 4.5, and 7.0. After the kinetics, isotherms were obtained using phenolic compounds concentration ranging between 10 and 80 mg/L during 60 minutes, at pH 2.0 and 7.0 and temperature of 36 °C. Results indicate that adsorbed quantities mainly changed in function of pH, however the maximum adsorption was only of 0.978 mg of caffeic acid/g of xylan at pH 2 and after 60 min. Redlich-Peterson model were able to predict the adsorption isotherms of all phenolic compounds onto cellulose, except for caffeic acid at pH 7.0. The low adsorption capacities observed suggest that both dietary fibres are unable to compromise the biodisponibility of phenolic compounds, especially in the small intestine, where they are partially absorbed.

show abstract

Section: Adsorption Isothermsmentioning

confidence: 68%

Section: Adsorption Kineticsmentioning

confidence: 99%

Adsorption capacity of phenolic compounds onto cellulose and xylan

Costa¹,

Rogez²,

Pena³

2015

Food Sci. Technol (Campinas)

View full text Add to dashboard Cite

show abstract

“…The adsorption capacity q (mg/mL resin) was calculated with Eq. (3) (Li et al, 2002;Cai et al, 2005;Zeng et al, 2009):…”

Section: Preliminary Choice Of the Resinsmentioning

confidence: 99%

Extraction and Advanced Adsorbents for the Separation of Perillaldehyde from Perilla frutescens (L.) Britton var. crispa f. viridis Leaves

Chang

Zhao

et al. 2014

FSTR

View full text Add to dashboard Cite

“…phase, to the active sites on the solid phase of an adsorbent (Bulut and Tez 2007). Numerous technologies involving adsorbents have been applied as preconcentration adsorbents for metal ions, including alumina (Li et al 2002;Absalan and Mehrdjardi 2003), activated carbon (AC) (Ensafi et al 2003;Gupta et al 2012a, b;Olorundare et al 2012), C18 cartridge silica, chelex-100 (Ferri and Sangiorgio 1996), polyurethane foam (Anthemidis et al 2002;Pinto et al 2004), microcrystalline naphthalene (Candir et al 2008;Elci et al 2008), nanoparticles (Gupta and Nayak 2012;Sanghavi et al 2013), silica gel (Akl et al 2004), cyclodextrins CDs (Krause et al 2010), zeolites (Ngah et al 2012), and clay (Kiliaris and Papaspyrides 2010). However, the development of purification and extraction methods using these adsorbents for the enrichment of metal ions in environmental samples has been a challenge due to drawbacks which have limited their application for effective monitoring and curtailments of pollutants in the environment (Pinto et al 2004;Alkan et al 2008;Castro et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Polyurethane composite adsorbent using solid phase extraction method for preconcentration of metal ion from aqueous solution

Olorundare

Msagati

Krause

et al. 2014

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

Polyurethane composite adsorbent polymeric material was prepared and investigated for selected solidphase extraction for metal ions, prior to its determination by inductively coupled plasma optical emission spectrometry. The surface characterisation was done using Fourier transform infrared spectroscopy. The separation and preconcentration conditions of the analytes investigated includes influence of pH, sample loading flow rate, elution flow rate, type and concentration of eluents. The optimum pH for the highest efficient recoveries for all metal ions, which ranged from 70 to 85 %, is pH 7. The metal ions were quantitatively eluted with 5 mL of 2 mol/L HNO 3 . Common coexisting ions did not interfere with the separation. The percentage recovery of the metal ions ranged between 70 and 89 %, while the results for the limit of detection and limit of quantification ranged from 0.249 to 0.256 and 0.831 to 0.855, respectively. The experimental tests showed good preconcentration results of trace levels of metal ions using synthesised polyurethane polymer adsorbent composite.

show abstract

Adsorption of phenolic compounds from aqueous solutions by a water-compatible hypercrosslinked polymeric adsorbent

Cited by 256 publications

References 26 publications

Adsorption capacity of phenolic compounds onto cellulose and xylan

Adsorption capacity of phenolic compounds onto cellulose and xylan

Extraction and Advanced Adsorbents for the Separation of Perillaldehyde from Perilla frutescens (L.) Britton var. crispa f. viridis Leaves

Polyurethane composite adsorbent using solid phase extraction method for preconcentration of metal ion from aqueous solution

Contact Info

Product

Resources

About