ADSORPTION KINETICS OF Pb(II), Cd(II) AND Cr(III) ON ADSORBENT PRODUCED BY PROTECTED-CROSSLINKING OF HUMIC ACID-CHITOSAN | Zendy

Dewi Umaningrum | Zendy; Uripto Trisno Santoso | Zendy; Radurmasari | Zendy; Rahmat Yunus | Zendy

Open Access

ADSORPTION KINETICS OF Pb(II), Cd(II) AND Cr(III) ON ADSORBENT PRODUCED BY PROTECTED-CROSSLINKING OF HUMIC ACID-CHITOSAN

Author(s) -

Dewi Umaningrum,

Uripto Trisno Santoso,

Radurmasari,

Rahmat Yunus

Publication year - 2010

Publication title -

indonesian journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.273

H-Index - 14

eISSN - 2460-1578

pISSN - 1411-9420

DOI - 10.22146/ijc.21484

Subject(s) - chemistry , adsorption , humic acid , kinetics , sorption , chitosan , metal , nuclear chemistry , metal ions in aqueous solution , reaction rate constant , langmuir adsorption model , rate determining step , inorganic chemistry , organic chemistry , catalysis , fertilizer , physics , quantum mechanics

Study on adsorption kinetics of of Pb(II), Cd(II) and Cr(III) on adsorbent which was produced by protectedcrosslinking of humic acid-chitosan has been done. The Langmuir-Hinshelwood, pseudo first- and second-order kinetics models were used to describe the kinetic data, and the rate constants of adsorption were also evaluated. The experimental data fitted well the second-order kinetics model, indicating that the chemical sorption is the ratelimiting step, instead of mass transfer. The initial metal ion concentration significantly affects the adsorption rate. An increase in initial metal ion concentration results in the decrease in adsorption rate of the metals.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research