Adsorption of Procion Blue MX-R dye from aqueous solutions by lignin chemically modified with aluminium and manganese

Adebayo, Matthew A.; Prola, Liziê Daniela Tentler; Lima, Éder C.; Puchana-Rosero, M.J.; Cataluña, Renato; Saucier, Caroline; Umpierres, Cibele S.; Vaghetti, Júlio C.P.; Silva, Leandro G. da; Ruggiero, Reinaldo

doi:10.1016/j.jhazmat.2014.01.005

Cited by 122 publications

(83 citation statements)

References 54 publications

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“…Interactions were computed with the aid of the Simplex method, based on the nonlinear fitting facilities of the Microcal Origin 9.0 software. A determination coefficient (R 2 ), an adjusted determination coefficient (R 2 adj) and the standard deviation (SD) were jointly used to evaluate the suitability of the models [2,3,5]. The standard deviation is defined as a measure of the differences between the theoretical and experimental amounts of metallic ion adsorbed.…”

Section: Statistical Evaluation Of Modelsmentioning

confidence: 99%

“…In these equations, q i, model represents individual theoretical q value predicted by the model; q i,exp represents individual experimental q value, exp q is the average of experimental q, n represents the number of experiments while p represents the number of parameters in the fitting model [2,3,5]. …”

Section: Statistical Evaluation Of Modelsmentioning

confidence: 99%

“…However, in the present work the surface area is 186 m 2 g -1 (Table 1) -low values compared with literature values. A possible explanation for the discrepancy in these values could be traced to pyrolysis conditions under which the samples were produced [4][5][6][7] …”

Section: Chemical Activation With Kohmentioning

confidence: 99%

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Sludge-Activated Carbons for Copper Removal From Aqueous Solutions

Castro¹,

Brum²,

Reis³

et al. 2017

Anais Do Congresso Anual Da ABM

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In this work, activated carbons (ACs) were prepared using Sewage sludge as starting material. The ACs were pyrolyzed in an inert atmosphere at 550 °C after independent chemical treatment with ZnCl2 or KOH with ratio of 1:1. The materials were used as adsorbents for removal of Cu(II) from aqueous solutions. The adsorbents were characterized using adsorption/desorption nitrogen isotherm, SEM (scanning electron microscopy). The results showed that copper removal could be linked to surface pH and compounds present on the surface of adsorbent. KOH-treated adsorbent has smaller surface area (186 m

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Section: Statistical Evaluation Of Modelsmentioning

confidence: 99%

Section: Statistical Evaluation Of Modelsmentioning

confidence: 99%

See 1 more Smart Citation

Sludge-Activated Carbons for Copper Removal From Aqueous Solutions

Castro¹,

Brum²,

Reis³

et al. 2017

Anais Do Congresso Anual Da ABM

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“…In recent years, lignin has drawn a significant amount of attention for its capability in removing heavy metals from aqueous media (Adebayo et al 2014;Ge et al 2014b;Li et al 2015). There are many outstanding aspects of lignin; for instance, lignin is produced by delignification from plants, and, after cellulose, it is the most abundant biopolymer (Gosselink et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Enhancing Lead Adsorption Capacity by Controlling the Chain Length of Alkyl Amine Grafted Lignin

Li¹,

Xiao²,

Kong³

et al. 2015

BioResources

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The adsorption capacity of lignin for lead can be controlled by varying the chain length of alkyl, attaching the amine to the lignin surface from C2 (ethyl) to C18 (octadecyl). Altering the chain length had a strong effect on the contribution of amine groups in the adsorption of lead ions by lignin. The adsorption capacity increased 105.0% as the chain length increased to butyl (C4); however, further chain lengths, up to C18, provided no additional benefit, and in some cases even hindered the adsorption capacity of lignin. A short-chain alkyl (C4) group enhanced the beneficial amine contributions for metal ion adsorption, which resulted from the efficient inductive effectiveness of the alkyl groups.

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“…Furlan et al (2010) aplicaram um adsorvente carbonoso (proveniente da casca de cocos) para a adsorção dos corantes, em um estudo acoplado aos processos de coagulação e floculação, resultando em uma associação eficiente ao tratamento de efluentes sintéticos da indústria têxtil. Adebayo et al (2014) apresentaram estudos mais recentes da aplicação de lignina modificada quimicamente com alumínio e manganês no processo, para o qual também foram observados resultados positivos.…”

Section: Introductionunclassified