Treatment of phenol and p-cresol in aqueous solution by adsorption using a carbonylated hypercrosslinked polymeric adsorbent

Using gelatin as dispersant, liquid paraffin as porogen, novel hypercrosslinked polymeric adsorbents of LM-5 and LM-6 were prepared by post-crosslinking reaction with phenol and 2-naphthol, respectively. Bromoethane was used as crosslinking reagent to substitute poisonous organic compound of chloromethyl methylether. 2-Naphthol was used in the post-crosslinking reaction to enhance phenolic hydroxyl group content. The experiments of selective adsorbing aniline on resins in mixture solution, which consisting of benzene and aniline, show that the adsorption of aniline and benzene on LM-6 in aqueous solution are mainly pushed by physical interaction. The adsorption of aniline is also partly pushed by chemical interaction, and the adsorptive enthalpy illuminates that there exists hydrogen-bonding. Owning to the hydrogen-bond, the adsorption capacity of aniline on LM-6 is markedly higher than that of benzene.

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Study on Enhancement Adsorption of Pipemidic Acid from Aqueous Solution by Using an Amino Group Modified Hypercrosslinked Polymeric Adsorbents

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.468-471.1239 ◽

2012 ◽

Vol 468-471 ◽

pp. 1239-1242

Author(s):

Jiang Quan Ma ◽

Jun Hao Xia ◽

Qing Ling Lu ◽

Peng Xiang Shi ◽

Lu De Lu ◽

...

Keyword(s):

Aqueous Solution ◽

Entropy Change ◽

Amino Group ◽

Pipemidic Acid ◽

Adsorption Ability ◽

Freundlich Model ◽

Polymeric Adsorbent ◽

Hypercrosslinked Polymeric Adsorbent ◽

Ph Range ◽

Positive Effect

In the present study, an amino group modified hypercrosslinked polymeric adsorbent RDM-200 was prepared and its ability to adsorb pipemidic acid from aqueous solution was tested by using Amberlite XAD-4 as a comparison. Pipemidic acid adsorption isotherm onto RDM-200 is well described by the Freundlich model. The RDM-200 adsorption capacity for PPA was about 510.5 mg/g at 293 K, exhibited larger uptake and stronger affinity of pipemidic acid than XAD-4. The adsorption thermodynamic parameters were calculated and the adsorption was an exothermic, favorable, and more ordered process. The RDM-200 spontaneously adsorbs pipemidic acid mainly by both entropy change and enthalpy change. The RDM-200 exhibited excellent adsorption ability over the pH range 6-10, NaCl showed the positive effect.

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Application of an easily water-compatible hypercrosslinked polymeric adsorbent for efficient removal of catechol and resorcinol in aqueous solution

Journal of Hazardous Materials ◽

10.1016/j.jhazmat.2008.12.120 ◽

2009 ◽

Vol 167 (1-3) ◽

pp. 69-74 ◽

Cited By ~ 30

Author(s):

Jianhan Huang ◽

Kelong Huang ◽

Cheng Yan

Keyword(s):

Aqueous Solution ◽

Efficient Removal ◽

Polymeric Adsorbent ◽

Hypercrosslinked Polymeric Adsorbent

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Removal and Recovery of Organic Pollutants from Aquatic Environment. V. Crosslinked Poly(hydroxystyrene) as a Polymeric Adsorbent for Removal and Recovery of ε-Caprolactam from Aqueous Solution

Bulletin of the Chemical Society of Japan ◽

10.1246/bcsj.53.2986 ◽

1980 ◽

Vol 53 (10) ◽

pp. 2986-2989 ◽

Cited By ~ 8

Author(s):

Nariyoshi Kawabata ◽

Yukihiko Taketani

Keyword(s):

Aqueous Solution ◽

Organic Pollutants ◽

Aquatic Environment ◽

Polymeric Adsorbent ◽

Removal And Recovery

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Adsorption of Phenol from Aqueous Solution by Aminated Hypercrosslinked Polymers

Adsorption Science & Technology ◽

10.1260/0263617054769996 ◽

2005 ◽

Vol 23 (4) ◽

pp. 335-346 ◽

Cited By ~ 19

Author(s):

Yue Sun ◽

Jin-Long Chen ◽

Ai-Min Li ◽

Fu-Qiang Liu ◽

Quan-Xing Zhang

Keyword(s):

Aqueous Solution ◽

Adsorption Process ◽

Kinetic Studies ◽

Amino Group ◽

Commercial Resin ◽

The Matrix ◽

Basic Anion Exchange Resin ◽

Tertiary Amino ◽

Basic Anion ◽

Hypercrosslinked Polymeric Adsorbent

The adsorption of phenol from aqueous solution onto the hypercrosslinked polymeric adsorbent NDA-100 and its dimethylamine aminated derivatives AH-1, AH-2 and AH-3, the commercial resin Amberlite XAD-4 and the weakly basic anion-exchange resin D301 was compared. Of the tested polymers, the aminated hypercrosslinked resins had the highest adsorption capacities. The empirical Freundlich equation was successfully employed to describe the adsorption process. The specific surface area and the micropore structure of the adsorbent together with the tertiary amino group on the matrix affected the adsorption performance towards phenol. Furthermore, these factors also influenced the thermodynamic properties. Kinetic studies demonstrated that the presence of the tertiary amino group on the polymer matrix decreased the adsorption rate and increased the apparent activation energy of the adsorption process.

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