KARBON AKTIF TERMODIFIKASI NANOSILVER
| Autor: | Wara Dyah Pita Rengga, Prima Astuti Hand |
|---|---|
| Jazyk: | indonéština |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Sainteknol, Vol 14, Iss 1, Pp 81-87 (2016) |
| Druh dokumentu: | article |
| ISSN: | 0216-4566 2527-3604 |
| Popis: | Carbon was prepared from dried waste bamboo (Dendrocalamus asper) using chemical activation with KOH. The carbon was prepared with the activating agent in a mass ratio of KOH and dried bamboo (3:1) at 800oC. Using impregnation technique, the bamboo-based activated carbon has developed with modified Ag nanoparticle (Ag-AC) to capture formaldehyde. The Ag-AC has characteristics of moderate surface area of 685 m/g and average pore size of 2.7 nm. The adsorption equilibriums and kinetics of formaldehyde on Ag-AC measured. The influences of initial formaldehyde on adsorption performance have measured in a batch system. The equilibrium data were evaluated by isotherm models of Langmuir, Freundlich, and Temkin. The Langmuir model well describes the adsorptive removal of formaldehyde on Ag-AC in this study. Pseudo-first-order and pseudo-second-order kinetic equations were applied to test the experimental data. The pseudo-second-order exhibited the best fit for kinetic study. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|