Silica gel ethyleneimine and its adsorption capacity for divalent Pb, Cd, and Hg

Arakaki, Luiza N.H.; Filha, Vera Lucia S. Augusto; Sousa, Kaline S.; Aguiar, Franklin Pessoa; Fonseca, Maria G. da; Espı́nola, José G.P.

doi:10.1016/j.tca.2005.11.004

Cited by 22 publications

(7 citation statements)

References 30 publications

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“…The phenyl vibrations appear at 1595, 1535, 500, 1460, 1415, and 1345 cm −1 and further support the immobilization of PAAH, as shown in Fig. 3 [13].…”

Section: Synthesis and Characterization 4-phenylacetophynone 4-aminobsupporting

confidence: 70%

Silica gel functionalized with 4-phenylacetophynone 4-aminobenzoylhydrazone: Synthesis of a new chelating matrix and its application as metal ion collector

Hatay

Güp

Ersöz

2008

Journal of Hazardous Materials

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“…The phenyl vibrations appear at 1595, 1535, 500, 1460, 1415, and 1345 cm −1 and further support the immobilization of PAAH, as shown in Fig. 3 [13].…”

Section: Synthesis and Characterization 4-phenylacetophynone 4-aminobsupporting

confidence: 70%

Silica gel functionalized with 4-phenylacetophynone 4-aminobenzoylhydrazone: Synthesis of a new chelating matrix and its application as metal ion collector

Hatay

Güp

Ersöz

2008

Journal of Hazardous Materials

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“…The Freundlich isotherm model showed the better correlation coefficient values (R 2 > 0.98) than other two studied isotherm models which designated the superior applicability of this model. A comparison of maximum monolayer adsorption capacity of Hg 2+ onto various adsorbents is shown in Table 3 [43][44][45][46][47][48][49][50]. The maximum monolayer adsorption capacity of ARSA was higher than most adsorbents shown in Table 3.…”

Section: Adsorption Kinetics Isotherms and Thermodynamic Studiesmentioning

confidence: 99%

Adsorption kinetics, isotherms, and thermodynamic studies for Hg²⁺ adsorption from aqueous medium using alizarin red-S-loaded amberlite IRA-400 resin

Naushad

Vasudevan

Sharma

et al. 2015

Desalination and Water Treatment

224

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A B S T R A C TAlizarin red-S-modified amberlite IRA-400 resin (ARSA) was applied for Hg 2+ removal from the aqueous medium which is a highly toxic metal ion. The adsorption process which was pH dependent, showed maximum adsorption of Hg 2+ in the pH range 6-8. ARSA exhibited good monolayer adsorption capacity for Hg 2+ (303.03 mg g −1 ) at 25˚C and the isotherm was well fitted by the Langmuir model. Moreover, the adsorption was evaluated thermodynamically and the negative values of Gibbs free energy revealed the spontaneity of adsorption process. The practical applicability of ARSA was explored for the adsorption of Hg 2+ metal ion from a real water sample. The values of ΔH and ΔS were found to be 79.87 kJ mol −1 and 0.26 J mol −1 K −1 , respectively.

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“…In addition, adsorption time was conducted at 10, 20, 30, 40, 50, 60, 70, 90, 120, 150, 180, and 210 minutes. Furthermore, the thermodynamic data were obtained using Langmuir and Freundlich isotherms and also G, H, and S [34][35][36] while the kinetic data were obtained by1 st and 2 nd order as well as Elovich kinetic models [37][38][39].…”

Section: Adsorption Of Cr(vi) By Bc and Rhmentioning

confidence: 99%

Removal of Cr(VI) from aqueous solution by biochar derived from rice husk

Mohadi

Palapa

Taher

et al. 2021

CST

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In this work, biochar produced from Indonesian rice husks. Then used as adsorbent of Cr(VI) in aqueous solution. The XRD pattern of biochar showed the characterization pattern at 23º (002) reflection, appearance of silicate oxide, and the carbon vibrations. The surface area and SEM morphologies confirmed that after pyrolysis treatment the surface of rice husk has changed. The surface area of biochar increased after thermal treatment. The adsorption study of Cr(VI) by biochar demonstrate 2nd-order reaction, and Langmuir isotherm models. The maximum adsorption capacity of biochar derived rice husk to adsorb Cr(VI) is 161.290 mg/g, and biochar showed the good potential as reuseable adsorbent to remove heavy metal in aqueous solution.

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Silica gel ethyleneimine and its adsorption capacity for divalent Pb, Cd, and Hg

Cited by 22 publications

References 30 publications

Silica gel functionalized with 4-phenylacetophynone 4-aminobenzoylhydrazone: Synthesis of a new chelating matrix and its application as metal ion collector

Silica gel functionalized with 4-phenylacetophynone 4-aminobenzoylhydrazone: Synthesis of a new chelating matrix and its application as metal ion collector

Adsorption kinetics, isotherms, and thermodynamic studies for Hg²⁺ adsorption from aqueous medium using alizarin red-S-loaded amberlite IRA-400 resin

Removal of Cr(VI) from aqueous solution by biochar derived from rice husk

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Silica gel ethyleneimine and its adsorption capacity for divalent Pb, Cd, and Hg

Cited by 22 publications

References 30 publications

Silica gel functionalized with 4-phenylacetophynone 4-aminobenzoylhydrazone: Synthesis of a new chelating matrix and its application as metal ion collector

Silica gel functionalized with 4-phenylacetophynone 4-aminobenzoylhydrazone: Synthesis of a new chelating matrix and its application as metal ion collector

Adsorption kinetics, isotherms, and thermodynamic studies for Hg2+ adsorption from aqueous medium using alizarin red-S-loaded amberlite IRA-400 resin

Removal of Cr(VI) from aqueous solution by biochar derived from rice husk

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Product

Resources

About

Adsorption kinetics, isotherms, and thermodynamic studies for Hg²⁺ adsorption from aqueous medium using alizarin red-S-loaded amberlite IRA-400 resin