https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:50383 Tue 31 Oct 2023 08:53:22 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:43431 2SO₄ to have better adsorption properties. On the contrary, modification of chitosan was carried out by acetaldehyde solution and acetic acid. Composite adsorbent was obtained as a mixture, comprising of modified cellulose and chitosan in a specific proportion (2g:1g). The surface characteristics of treated cellulose, chitosan and composite sample were evaluated by FTIR and SEM analysis. In addition, batch adsorption experiments were carried out to measure the influences of pH of the solution, adsorbent dosage and the initial concentration of metal ions. The maximum removal efficiency of Cr, Pb and Cd by composites was 56, 85 and 94%, respectively, at pH 4 when the metal concentration and adsorbent dosage were 60 ppm and 1.0 g L^-1. The maximum adsorption of Cr, Pb and Cd by composites was 55, 80 and 91 mg g^-1, respectively, at pH 4 when the metal concentration and adsorbent dosage were 120 ppm and 1.0 g L^-1.]]> Mon 19 Sep 2022 10:57:46 AEST ]]>