Preparation and characteristics of anion exchanger from corn stalks

Chen, Suhong; Yue, Qinyan; Li, Qian

doi:10.1016/j.desal.2011.01.080

Cited by 27 publications

(9 citation statements)

References 28 publications

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“…For this reason, it is extremely important to find efficient methods to mitigate the side effects of the pretreatments that favor an increased adsorption capacity. Other studies involving the removal of metal ions and anions from aqueous solution can be found in Table and Table . As well as the synthesis parameters and reaction conditions are mentioned in Table .…”

Section: Development Of New Adsorbents From Lignocellulosic Residuesmentioning

confidence: 99%

Chemical modifications of lignocellulosic materials and their application for removal of cations and anions from aqueous solutions

Melo

Neto

Barros

et al. 2015

J of Applied Polymer Sci

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This review discussed the last 10 years progress in the use of lignocellulosic materials chemically modified as low-cost biosorbents. Thus, the chemical modifications, such as chemical pretreatment, oxidation, as well as the grafting of carboxyl groups, amines, amides, etc., on lignocellulosic fibers, that aim to increase the number of adsorption sites and maximize toxic metal ion adsorption capacity have been addressed. The literature presents results that indicated performances of biosorbents equal to or even higher than conventional methods and adsorbents. Many efforts have been concentrated on the improvements of these biosorbents through chemical modifications. However, some difficulties still exist, including the discharge of colored organic compounds resulting from the pretreatments and the development of fast, clean, and low-cost synthesis of selective and multifunctional adsorbents. Thus, the challenge for future research is to find solutions to these difficulties in order to finally make lignocellulosics biosorbents that can replace conventional adsorbent materials.

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Section: Development Of New Adsorbents From Lignocellulosic Residuesmentioning

confidence: 99%

Chemical modifications of lignocellulosic materials and their application for removal of cations and anions from aqueous solutions

Melo

Neto

Barros

et al. 2015

J of Applied Polymer Sci

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“…Currently, the methods of grafting QAF to target hydroxyl groups through the epoxideinduced reaction have been used for the amine modification of starch [14], lignin [15], wheat straw [16,17], cotton stalks [17,18], rice straw [19], reed [9], coir fiber [20] and other materials, rarely applied to AC modification. In this experiment, two methods were selected for studying the amine modification of AC: two-stage method and ethylenediamine crosslinking method, which were expected to anchor QAF to target hydroxyl groups of AC by epoxide-induced reactions [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Enhance Cr(VI) removal by quaternary amine-anchoring activated carbons

Wang

Li²,

Zhang³

et al. 2016

Journal of the Taiwan Institute of Chemical Engineers

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“…It is expected that the tracer technique used here can also be used for characterizat ion of other organic ion exchange resins which are widely synthesized for their specific technical applications [12][13][14]. The present technique can also be extended further to standardize the operational parameters so as to bring about the most efficient performance of those resins in their specific industrial applications.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Strongly Basic Anion Exchange Resins Tulsion A-30 and Indion-820 by Application of <SUP>131</SUP>I and <SUP>82</SUP> Br as a Tracer Isotopes

Singare¹

2013

CMATERIALS

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In the present investigation radioactive tracer isotopes 131 I and 82 Br were used to study the kinetics of iodide and bromide ion-isotopic exchange reaction. The kinetics study was performed to study the effect of ionic concentration and temperature on the specific reaction rate calculated in min -1 . Fro m the initial ionic concentration and knowing the value of specific reaction rate, the values of amount of ions exchanged in mmo l and percentage ion exchange were calcu lated. It was also observed that for both the resins, there exists strong positive co-relat ionship between amount of ions exchanged and concentration of ionic solution, while a strong negative co-relationship was observed between amount of ions exchanged and temperature of exchanging mediu m. The values of specific reaction rate, amount and percentage of ions exchanged so obtained for the ion-isotopic exchange reactions using strong base, nuclear grade anion exchange resin Tulsion A-30 and non-nuclear grade anion exchange resin Indion-820 were co mpared. It was observed that the above values calculated were higher for Tulsion A-30 as compared to that for Indion-820, indicating superior performance of Tu lsion A-30 under identical experimental conditions. The similar study on application of radioactive tracer isotopes can be extended further for performance assessment of different nuclear as well as non-nuclear grade ion exchange resins.

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Preparation and characteristics of anion exchanger from corn stalks

Cited by 27 publications

References 28 publications

Chemical modifications of lignocellulosic materials and their application for removal of cations and anions from aqueous solutions

Chemical modifications of lignocellulosic materials and their application for removal of cations and anions from aqueous solutions

Enhance Cr(VI) removal by quaternary amine-anchoring activated carbons

Comparative Study of Strongly Basic Anion Exchange Resins Tulsion A-30 and Indion-820 by Application of <SUP>131</SUP>I and <SUP>82</SUP> Br as a Tracer Isotopes

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