TY - JOUR
T1 - Preparation and sorption properties of porous materials from refuse paper and plastic fuel (RPF)
AU - Kadirova, Z.
AU - Kameshima, Y.
AU - Nakajima, A.
AU - Okada, K.
N1 - Funding Information:
ZK thanks UNESCO/MEXT, Japan for the award of a research fellowship. The authors are grateful to Professor K.J.D. MacKenzie of Victoria University of Wellington for critical reading and editing of the manuscript. The authors are also thank to Nippon Daishowa Paperboard Company for supplying the RPF sample.
PY - 2006/9/1
Y1 - 2006/9/1
N2 - Porous materials consisting of activated carbon and amorphous CaO-Al2O3-SiO2 (CAS) compound were prepared from refuse paper and plastic fuel (RPF), (a mixture of old paper and plastic) by carbonizing and/or activating treatments. Samples formed by chemical activation using K2CO3 showed a high specific surface area (SBET) of 1330 m2/g but a lower ash content due to being washed after activation. By contrast, samples prepared by physical activation using steam showed rather lower SBET (510 m2/g) due to higher ash contents. The physically activated samples showed much higher uptake properties for Ni2+ (a representative heavy metal) and phosphate ions (a representative of a harmful oxyanion) than the chemically activated samples because of the higher content of amorphous CAS in the former samples. By contrast, the chemically activated samples showed higher uptake for methylene blue (MB, a representative organic material) than the physically activated samples because of the higher activated carbon content of higher surface area. Although differences in the sorption properties for Ni2+, phosphate ion and MB were found between the physically and chemically activated samples, both samples show excellent multiple sorption properties for cation-anion combinations and inorganic-organic sorbents.
AB - Porous materials consisting of activated carbon and amorphous CaO-Al2O3-SiO2 (CAS) compound were prepared from refuse paper and plastic fuel (RPF), (a mixture of old paper and plastic) by carbonizing and/or activating treatments. Samples formed by chemical activation using K2CO3 showed a high specific surface area (SBET) of 1330 m2/g but a lower ash content due to being washed after activation. By contrast, samples prepared by physical activation using steam showed rather lower SBET (510 m2/g) due to higher ash contents. The physically activated samples showed much higher uptake properties for Ni2+ (a representative heavy metal) and phosphate ions (a representative of a harmful oxyanion) than the chemically activated samples because of the higher content of amorphous CAS in the former samples. By contrast, the chemically activated samples showed higher uptake for methylene blue (MB, a representative organic material) than the physically activated samples because of the higher activated carbon content of higher surface area. Although differences in the sorption properties for Ni2+, phosphate ion and MB were found between the physically and chemically activated samples, both samples show excellent multiple sorption properties for cation-anion combinations and inorganic-organic sorbents.
KW - Activated carbon
KW - Activation
KW - CaO-AlO-SiO
KW - Multiple sorption
KW - Porous material
KW - RPF
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U2 - 10.1016/j.jhazmat.2006.02.008
DO - 10.1016/j.jhazmat.2006.02.008
M3 - Article
C2 - 16530942
AN - SCOPUS:33747785300
SN - 0304-3894
VL - 137
SP - 352
EP - 358
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
IS - 1
ER -