Fe (ii) adsorption on Ucides Cordatus crab shells

Autor:	Karina Beltrão Cambuim, Maria da Conceição Silva Barreto, Karina Karla Pacheco Porpino, José Rodrigues Filho, Micheline A Lima, Ilda Antonieta Salata Toscano
Jazyk:	angličtina
Rok vydání:	2011
Předmět:	crab shells Sorbent Chemistry Contact time Analytical chemistry Langmuir adsorption model General Chemistry Standard solution Kinetic energy lcsh:Chemistry symbols.namesake Adsorption iron lcsh:QD1-999 adsorption symbols Ucides cordatus
Zdroj:	Química Nova, Volume: 34, Issue: 6, Pages: 928-932, Published: 2011 Química Nova v.34 n.6 2011 Química Nova Sociedade Brasileira de Química (SBQ) instacron:SBQ Química Nova, Vol 34, Iss 6, Pp 928-932 (2011)
Popis:	In this study Ucides cordatus crab shells were utilized as Fe (II) sorbent as material of low cost and simple preparation. Values of pH of standard solution, biosorbent mass, particles size, contact time (t c) and initial concentration of the standard solution were optimized. The best conditions were pH = 2.00, t c = 840 min and Mc = 0.25 g. The kinetic pseudo first-order model displayed the best description of the adsorption process and the equilibrium study showed that the Langmuir model better describes the adsorption of the Fe (II). There is great affinity between the Fe (II) and the biosorbent.
Databáze:	OpenAIRE
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