Adsorptive removal of formaldehyde by chemically bamboo activated carbon with addition of Ag nanoparticle: Equilibrium and kinetic

Wara Dyah Pita Rengga, Mahmud Sudibandriyo, Mohammad Nasikin

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)

Abstract

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 800°C. 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 m2/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.

Original languageEnglish
Article number04004
JournalMATEC Web of Conferences
Volume59
DOIs
Publication statusPublished - 24 May 2016
Event2016 International Conference on Frontiers of Sensors Technologies, ICFST 2016 - Hong Kong, Hong Kong
Duration: 12 Mar 201614 Mar 2016

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