Congo Red adsorption by ball-milled sugarcane bagasse

By Zhanying Zhang, L. Moghaddam, I. O'Hara, William O. S. Doherty. 2011

254 citations recorded by the source corpus.

The adsorption of Congo Red (CR) by ball-milled sugarcane bagasse was evaluated in an aqueous batch system. CR adsorption capacity increased significantly with small changes in bagasse surface area. CR removal decreased with increasing solution pH from 5.0 to 10.0. Maximum adsorption capacity was 38.2 mg/g bagasse at a CR concentration of 500 mg/L. The equilibrium isotherm fitted the Freundlich model and the adsorption kinetics obeyed pseudo-second order equation. CR adsorption obeyed the intra-particle diffusion model very well with bagasse surface area in the range of 0.58–0.66 m2/g, whereas it was controlled by multi-adsorption stages with bagasse surface area in the range of 1.31–1.82 m2/g. Thermodynamic analysis indicated that the adsorption process is an exothermic and spontaneous process. Fourier transform infrared analysis of bagasse containing adsorbed CR indicated interactions between the carboxyl and hydroxyl groups of bagasse and CR function groups.

Subfields: Analytical Chemistry, Electrical and Electronic Engineering, Water Science and Technology

View Paper: https://www.semanticscholar.org/paper/b06729879df7c5aa209350fb45d63b9e92798088

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In Analytical Chemistry

1. I. O'Hara
2. William O. S. Doherty
3. Zhanying Zhang

In Water Science and Technology

1. I. O'Hara
2. William O. S. Doherty
3. Geoff Kent
4. Zhanying Zhang

Citations in the corpus

• Comparative study on adsorption of two cationic dyes by milled sugarcane bagasse (2013, methodology): “Effect of surface area The surface areas of cutter-grinded and ball-milled bagasse samples are shown in Table 1 (Zhang et al., 2011).”