2016
DOI: 10.1016/j.jscs.2013.03.008
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Adsorption of divalent metals on natural and functionalized nontronite hybrid surfaces: An evidence of the chelate effect

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Cited by 9 publications
(9 citation statements)
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“…The results are in general agreement with literature data for palygorskite (PZC = 7-11) (Pereira et al, 2016;Rusmin et al, 2016;Acebal & Vico, 2017). The SCM and MCM samples studied show greater PZC values than those reported for the Brazilian nontronite (PZC ≈ 4) (Guerra et al, 2016) and NAu-2 from the Source Clays Repository (PZC = 7.2) (Jaisi et al, 2008), however. The acid-base titration was conducted under atmospheric conditions, and the effect of solution buffering due to interaction with CO 2 could not be avoided (Duc et al, 2005), as shown by the final pH value in the control solutions ( Fig.…”
Section: R E S U Lt Ssupporting
confidence: 90%
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“…The results are in general agreement with literature data for palygorskite (PZC = 7-11) (Pereira et al, 2016;Rusmin et al, 2016;Acebal & Vico, 2017). The SCM and MCM samples studied show greater PZC values than those reported for the Brazilian nontronite (PZC ≈ 4) (Guerra et al, 2016) and NAu-2 from the Source Clays Repository (PZC = 7.2) (Jaisi et al, 2008), however. The acid-base titration was conducted under atmospheric conditions, and the effect of solution buffering due to interaction with CO 2 could not be avoided (Duc et al, 2005), as shown by the final pH value in the control solutions ( Fig.…”
Section: R E S U Lt Ssupporting
confidence: 90%
“…The specific surface area and CEC values of PCM are in general agreement with those found in the literature (SSA = 116–213 m 2 g –1 , CEC = 0.19–0.30 meq g –1 ) (Al-Futaisi et al , 2007; Chen & Wang, 2007; Wang et al , 2012; Rhouta et al , 2013). The SCM has CEC and SSA values close to those of a Brazilian nontronite (Guerra et al , 2016), which are greater than those for NAu-2 (from The Clay Minerals Society's Source Clays Repository) (Jaisi et al , 2008), whereas Köster et al (1999) reported exchange capacities of >0.72 meq g –1 for a series of nontronites. The SSA of the mixed clay is also comparable to that of a smectite-palygorskite-bearing clay from Turkey, whereas its CEC is much smaller (SSA = 208 m 2 g –1 , CEC = 0.85 meq g –1 (Önal & Sarikaya, 2009)).…”
Section: Resultsmentioning
confidence: 95%
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“…The total SSA of SCM is 110-140 m 2 g -1 , which is higher than for most nontronites, but it has low micropore area (74 m 2 g -1 ). A Brazilian nontronite had SSA 93m 2 g -1 (Guerra et al, 2016). KIM has the lowest SSA of all samples (40-45 m 2 g -1 ) with no significant micropore area (<10%).…”
Section: Figure 410: Bet-n2 Sorption (-•-) and Desorption (-○-) Isotherms And Normalized Pore Size (Dv/dlogw Cm3 G-1) Distribution (Embedmentioning
confidence: 91%