A comparative study on the adsorption of 8-amino-1-naphthol-3,6-disulfonic acid by a macroporous amination resin

Zhang, Ziwei; Wang, Fang; Yang, Weiben; Yang, Zhen; Li, Aimin

doi:10.1016/j.cej.2015.08.010

Cited by 38 publications

(23 citation statements)

References 50 publications

(57 reference statements)

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“…Figure 5 shows the kinetic data of NSA adsorption by the four resins at pH 2.0 and 303 K. The data were analyzed using two kinetic models: the pseudo-first-order and pseudo-second-order. The equations are listed as follows (Jiménez-Cedillo et al., 2013; Zhang et al., 2016) where Q e and Q t (mmol/g) are the adsorption capacities of NSA adsorbed at equilibrium and any time (min), respectively. k 1 (min −1 ) and k 2 (g mmol −1 min −1 ) are the rate constants of the pseudo-first-order and pseudo-second-order kinetic models, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…produced an adsorbent via introducing reed straw (RS) into sewage sludge-based activated carbon, and the presence of RS enhances the adsorption of 1-diazo-2-naphthol-4-sulfonic acid from aqueous solution (Gu et al., 2014). Zhang et al. (2016) proposed a novel macroporous amination resin, which exhibits superior affinity toward 8-amino-1-naphthol-3,6-disulfonic acid compared with three commercial resins.…”

Section: Introductionmentioning

confidence: 99%

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Removal of 2-naphthalenesulfonic acid using novel dual functional weakly basic anion exchange resins from aqueous solution

Sun

Zheng

Yin

2019

Adsorption Science & Technology

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Two novel weakly basic anion exchange resins BNH and BN2 bearing two different functional groups was fabricated via the two-step amination of chloromethylated polystyrenedivinylbenzene beads with dibutylamine and dimethylamine. The adsorption properties of BNH and BN2 for the 2-naphthalenesulfonic acid (NSA) removal from wastewater were compared with two synthesized monofunctional anion exchange resins BN0 and BN6 (derived from dimethylamine and dibutylamine, respectively). The experimental data revealed that the adsorption process on the four resins fitted well with the pseudo-second-order kinetics equation and the equilibrium isotherms were in good agreement with the Langmuir model. Thermodynamic analyses illustrated that 2-naphthalenesulfonic acid adsorption onto resins was an endothermic and spontaneous process. Importantly, BN2 still displayed relatively high adsorption capacity in the existence of Na 2 SO 4 , indicative of an excellent selectivity for 2-naphthalenesulfonic acid over sulfate than other resins. The obtained results elucidate that BN2 could have potential industrial application in effluent disposal fields because of its superior selectivity, acceptable kinetics, and desorption capability.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Removal of 2-naphthalenesulfonic acid using novel dual functional weakly basic anion exchange resins from aqueous solution

Sun

Zheng

Yin

2019

Adsorption Science & Technology

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“…To evaluate the adsorption rate behavior for MPD onto the adsorbents at 303 K, pseudo‐first‐order rate, pseudo‐second‐order rate, and intraparticle diffusion models were employed to fit the kinetic data. The kinetic equations are as follows:

q_{t} = q_{e} ([], 1 - \exp ((), - K_{1} t))

\frac{t}{q_{t}} = \frac{t}{q_{e}} + \frac{1}{K_{2} q_{e}^{2}}

q_{t} = K_{d} t^{1 / 2} + C

…”

Section: Resultsmentioning

confidence: 99%

Comparative study of adsorption for m‐phenylenediamine in aqueous solution onto chemically modified resins

Wang

Liu

et al. 2018

J of Applied Polymer Sci

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Four kinds of hypercrosslinked resins (acidic resins labeled SAMR and TAMR and heterocyclic resins IDLMR and PRLMR) were synthesized as adsorbents to remove m-phenylenediamine (MPD) from aqueous solution comparably. The Brunauer-Emmett-Teller specific surface area and pore size distribution of the two types of resins have been compared, and the infrared spectra of the resins confirm the presence of the modified groups. The adsorption isotherms illustrate that the Freundlich equation fits more appropriately than the Langmuir equation or the Temkin equation. In addition, the kinetic curves indicate that the pseudo-second-order model is a better fit than the pseudo-first-order model. The thermodynamic studies show that the isosteric adsorption enthalpy changes (ΔH) and the Gibbs free energy change (ΔG) are both negative, revealing that all of the adsorption processes are spontaneous and exothermic. All of the modified resins exhibit the best adsorption capacity at pH = 6.24. The results show that the acidic resins have better adsorption of MPD.

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“…As seen, all S2p spectra of the two resins before adsorption were not detected to any peaks. Nonetheless, the S2p spectra of SD1 and SD5 were revealed at the increased peak of 168.18 and 168.00 eV, respectively, after adsorption, which illustrated that sulfur (sulfonic acid groups in PTSA) was adsorbed on the surface of the adsorbents [16,40].…”

Section: Xps Analysis Before and After Adsorptionmentioning

confidence: 96%

“…Among these methods, adsorption is generally considered an effective process to remove organic pollutants and purify contaminated water due to its simplicity, rapidity, and low cost. Therefore, many adsorbents such as activated carbon, silica, modified fiber, chitosan, and polymeric resin have been used for wastewater treatment [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Effect of Functional Group Density of Anion Exchange Resins on Removal of p-Toluene Sulfonic Acid from Aqueous Solution

Sun

Zheng

et al. 2019

Applied Sciences

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Adsorption using anion exchange resins is an efficient method for the removal of aromatic sulfonic acids (ASAs) from industrial wastewater. In this study, a series of weak-base anion exchangers (SD1–SD5) were synthesized to investigate the effect of functional group density of resins on the adsorption of ASAs from wastewater containing competitive inorganic anions. p-Toluene sulfonic acid (PTSA) was selected as a target pollutant, and Na2SO4 was chosen as the competitive inorganic salt because of its widespread existence in industrial wastewater. Adsorption performances of these resins were evaluated and compared in terms of selectivity, kinetics, isotherms, regeneration, and dynamic adsorption behavior. Importantly, the PTSA uptake increased with the raising content of functional groups on resins in the absence of Na2SO4; however, in the presence of a high level of Na2SO4 (for example, ≥1%), a decrease in the functional group density could improve the adsorption capacity of resins for PTSA. Moreover, desorption and fixed bed column experiments were conducted in all resins, thereby confirming the effect of functional group density of resins on the PTSA adsorption in actual application. In brief, this research will provide a better understanding for the design and preparation of anion exchangers for the effective removal of ASA from wastewater.

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A comparative study on the adsorption of 8-amino-1-naphthol-3,6-disulfonic acid by a macroporous amination resin

Cited by 38 publications

References 50 publications

Removal of 2-naphthalenesulfonic acid using novel dual functional weakly basic anion exchange resins from aqueous solution

Removal of 2-naphthalenesulfonic acid using novel dual functional weakly basic anion exchange resins from aqueous solution

Comparative study of adsorption for m‐phenylenediamine in aqueous solution onto chemically modified resins

Effect of Functional Group Density of Anion Exchange Resins on Removal of p-Toluene Sulfonic Acid from Aqueous Solution

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