Preparation of anion exchanger by amination of acrylic acid grafted polypropylene nonwoven fiber and its ion-exchange property

Park, Hyun-Ju; Chun-Ki, Na

doi:10.1016/j.jcis.2006.05.003

Cited by 70 publications

(31 citation statements)

References 25 publications

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“…While the virgin PP fibers showed a quite smooth surface, the grafted PP fibers' surface became much rougher due to PMAA layer formed on the fiber surface [34,35]. In Figure 3 exhibited thermal analysis (TGA, DSC) results of virgin PP and grafted PP fibers, which indicated that the chemical modification of PP fibers caused changes in their thermal properties [2,36].…”

Section: Characterization Of Pp-g-maa Fibersmentioning

confidence: 99%

Oil Sorbents based on Methacrylic Acid - Grafted Polypropylene Fibers: Synthesis and Characterization

Ha¹,

Sơn²

2016

J Chem Eng Process Technol

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Section: Characterization Of Pp-g-maa Fibersmentioning

confidence: 99%

Oil Sorbents based on Methacrylic Acid - Grafted Polypropylene Fibers: Synthesis and Characterization

Ha¹,

Sơn²

2016

J Chem Eng Process Technol

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“…The related parameters were analyzed with the Langmuir model to evaluate the maximum exchange capacity (Q max ). A Langmuir-type isotherm is an indication of surface homogeneity of the exchangers and ion exchange phenomena (Weber 1972 Some commercially available anion exchange resins, activated carbon, and reported modified adsorbents have been selected and their nitrate adsorption capacities have been evaluated (Orlando et al 2002a;Park and Na 2006;Chabani et al 2007;Wang et al 2013;Katal et al 2012;Wan et al 2012). The results are presented in Table 2 for comparison with LQAE.…”

Section: Sorption Capacity Of Lqaementioning

confidence: 99%

Preparation of Lignin-Based Quaternary Amine Anion Exchangers in NaOH Solutions and their Characteristics

Bo¹,

Wang²

2014

BioResources

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A lignin-based quaternary amine anion exchanger (LQAE) modified from raw lignin was synthesized after the reaction with epichlorohydrin and triethylamine using an NaOH solution as the basic solvent. The reaction mechanism of the experiment was explored and validated. Effect of reaction conditions on the preparation of LQAE were investigated. The performance of the LQAE was characterized by FTIR, SEM, and elemental analysis. The adsorption rate and yield were the measurable indicators, and when the NaOH concentration was 6 M, the nitrate adsorption capacity and the yield were 36.7 mg nitrate/g anion exchanger lignin and 123.6%, respectively.

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“…This can be attributed to the fact that the adsorption follows a monomolecular layer adsorption mechanism. Some commercially available anion exchange resins, activated carbon, and other reported biomass adsorbents have been selected to compare their nitrate adsorption capacities on the basis of reported literature (Orlando et al 2002a;Park and Na 2006;Chabani et al 2007;Xu et al 2010;Katal et al 2012;Wan et al 2012). The results are presented in Table 5 in comparison to those of L-AE.…”

Section: Adsorption Isothermmentioning

confidence: 99%

Preparation of Lignin-Based Anion Exchangers and their Utilization for Nitrate Removal

Wang

Liu

et al. 2013

BioResources

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Lignin-based anion exchangers (L-AE) were prepared by reacting lignin with epichlorohydrin and triethylamine in the presence of N,Ndimethylformamide and a catalyst. A multi-factor and multi-level orthogonal design of experiment was carried out in order to obtain the optimal conditions for the preparation of lignin-based anion exchangers. The optimized parameters including the dosages of catalysts, the amounts of triethylamine, graft reaction time, and the graft reaction temperature were defined. Data of nitrate removal and yield were used as performance indicators of the products prepared. The results indicated that the reaction temperature was the primary factor. The optimal synthesis reaction parameters were lignin:pyridine:triethylamine = 2 g:3 mL:12 mL. The optimal experimental temperature was 70 °C, and the reaction time was 7 h. The yield was 188.6% and the nitrate removal was 91.2%. Under some reaction conditions, the yields were found greater than 100%; this was due to the grafted mass from epoxidation with epichlorohydrin and quaternization (through the reaction of epoxide with triethylamine).

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Preparation of anion exchanger by amination of acrylic acid grafted polypropylene nonwoven fiber and its ion-exchange property

Cited by 70 publications

References 25 publications

Oil Sorbents based on Methacrylic Acid - Grafted Polypropylene Fibers: Synthesis and Characterization

Oil Sorbents based on Methacrylic Acid - Grafted Polypropylene Fibers: Synthesis and Characterization

Preparation of Lignin-Based Quaternary Amine Anion Exchangers in NaOH Solutions and their Characteristics

Preparation of Lignin-Based Anion Exchangers and their Utilization for Nitrate Removal

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