| 학회 |
한국공업화학회 |
| 학술대회 |
2016년 봄 (05/02 ~ 05/04, 여수 엑스포 컨벤션) |
| 권호 |
20권 1호 |
| 발표분야 |
환경에너지_포스터 |
| 제목 |
Hybrid microporous silica in the efficient remediation of aqueous waste contaminated with toxic Cu(II) and Pb(II) ions |
| 초록 |
In this study, the natural biopolymer, chitosan was grafted with 3-aminopropyl-triethoxysilane under the inert atmosphere in acetic acid-ethanol solvent mixture. The synthesized hybrid was heated at 500 oC for 3 hours to obtain microporous silica solid. The surface morphology of the material was obtained with the help of SEM images and the surface functional groups were characterized by FT-IR analysis. The microporous silica was successfully employed for the removal of Cu(II) and Pb(II) from aqueous solutions under batch reactor operations. An increase in the sorptive pH significantly favours Cu(II) and Pb(II) removal and the equilibrium state sorption data collected under concentration dependence studies were reasonably fitted to Langmuir and Freundlich adsorption isotherm. Furthermore, fixed bed column studies were conducted and the breakthrough data were fitted into non-linear Thomas equation and the loading capacity of Cu(II) and Pb(II) were evaluated. |
| 저자 |
Lalhmunsiama1, Lalchhingpuii2, Diwakar Tiwari2, 이승목1
|
| 소속 |
1가톨릭관동대, 2Mizoram Univ. |
| 키워드 |
porous silica; toxic metal; removal; kinetic
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| E-Mail |
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