2020
DOI: 10.3390/polym12010236
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Activated Carbon Microsphere from Sodium Lignosulfonate for Cr(VI) Adsorption Evaluation in Wastewater Treatment

Abstract: In this study, activated carbon microsphere (SLACM) was prepared from powdered sodium lignosulfonate (SL) and polystyrene by the Mannich reaction and ZnCl2 activation, which can be used to remove Cr(VI) from the aqueous solution without adding any binder. The SLACM was characterized and the batch experiments were conducted under different initial pH values, initial concentrations, contact time durations and temperatures to investigate the adsorption performance of Cr(VI) onto SLACM. The results indicated that … Show more

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Cited by 23 publications
(12 citation statements)
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“…In general, adsorption study is modeled with isotherms described by mathematical equations. Isotherm studies are useful to detect the concentrations ratio of AB 113 between solid and liquid phases and to provide important information about those, when equilibrium is reached [35]. Thus, the adsorption process of AB 113 onto IRA 402(Cl − ) resin, applying the Langmuir and Freundlich isotherm model, was evaluated.…”
Section: Batch Adsorption Studiesmentioning
confidence: 99%
“…In general, adsorption study is modeled with isotherms described by mathematical equations. Isotherm studies are useful to detect the concentrations ratio of AB 113 between solid and liquid phases and to provide important information about those, when equilibrium is reached [35]. Thus, the adsorption process of AB 113 onto IRA 402(Cl − ) resin, applying the Langmuir and Freundlich isotherm model, was evaluated.…”
Section: Batch Adsorption Studiesmentioning
confidence: 99%
“…The effect of pH solution is an important parameter that influences the adsorption capacity of the adsorbent for metal ions [ 28 , 29 ]. Figure 5 shows the effect of pH on the adsorption of resin for La 3+ , Ce 3+ , and Y 3+ .…”
Section: Resultsmentioning
confidence: 99%
“…Recently, ACSs were also prepared by ZnCl 2 activation of a precursor prepared by the Mannich reaction between lignocellulose and polystyrene [190]. The prepared ACSs were applied successfully in the separation of Cr(VI) ions from wastewater, having a surface area and average pore size of 769.37 m 2 g -1 and 2.46 nm, respectively.…”
Section: Activated Carbon Spheresmentioning
confidence: 99%