Open AccessAdsorption of Reactive Blue 19 on coconut shell and bamboo activated carbons
Author(s) -
Chiều Lê Văn,
Duy Ngọc Vũ,
Tiến Mạnh Nguyễn,
Hà Thế Cao
Publication year - 2017
Publication title -
tạp chí khoa học đại học quốc gia hà nội: khoa học tự nhiên và công nghệ (vnu journal of science:natural sciences and technology)
Language(s) - English
Resource type - Journals
eISSN - 2615-9317
pISSN - 2588-1140
DOI - 10.25073/2588-1140/vnunst.4680
Subject(s) - activated carbon , adsorption , microporous material , bamboo , shell (structure) , chemical engineering , chemistry , carbon fibers , specific surface area , absorption (acoustics) , nuclear chemistry , materials science , organic chemistry , composite material , catalysis , composite number , engineering
Kinetics and isotherms of Reactive Blue 19 adsorption on two kinds of granular activated carbons from coconut shell and bamboo were determined in this study. These activated carbon are micropore materials with specific surface areas of 687 and 425 m2/g, respectively. Experimental data shows that equilibrium times are the same for both kinds of activated carbon when ininital concentration of the dye is 40 mg/L. However, maximum absorption capacity of bamboo activated carbon is about 10 times higher than that of coconut shell. This results reveals that adsorption site density on the surface plays a more important role than specific surface area.