Carbon dioxide adsorption and decolourizing power of activated carbons prepared from Pistacia shells

被引:14
作者
Hourieh, MA
Alaya, MN
Youssef, AM
机构
[1] MANSOURA UNIV,FAC SCI,MANSOURA 35516,EGYPT
[2] UNIV ALEPPO,FAC SCI,ALEPPO,SYRIA
关键词
D O I
10.1177/026361749701500602
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
A series of activated carbons 'Z' was prepared from Aleppo Pistacia Vera shells using different percentages of zinc chloride at 873 K in the absence of air. Another series 'ZN' was prepared using the same conditions as for the 'Z' series but employing a nitrogen atmosphere to effect carbonization. The textural properties of the two series of samples were determined from the adsorption of carbon dioxide and methylene blue at 298 K. Activated carbons with a high adsorptive capacity for methylene blue were obtained, Activation with zinc chloride proceeded with increasing microporosity via the creation of new micropores. At high percentages of zinc chloride, slight partial pore widening may take place. Carbon dioxide was accessible to the entire pore system and was therefore suitable as a probe for the investigation of the textural properties of the activated carbons studied, A fraction of the porosity was inaccessible to methylene blue molecules and consequently lower surface areas were calculated from the adsorption of this dye molecule.
引用
收藏
页码:419 / 427
页数:9
相关论文
共 29 条
[21]  
Singh D. K., 1993, Indian Journal of Environmental Health, V35, P169
[22]   POLY(VINYLIDENE FLUORIDE)-COATED OR POLY(VINYLIDENE CHLORIDE VINYL CHLORIDE)-COATED ACTIVATED-CHARCOAL FOR THE ADSORPTION OF LARGE LIPOPHILIC MOLECULES WITH EXCLUSION OF SMALL HYDROPHILIC MOLECULES [J].
SIPEHIA, R ;
BANNARD, RAB ;
CHANG, TMS .
JOURNAL OF MEMBRANE SCIENCE, 1989, 47 (03) :293-299
[23]  
SIVANANDAN VA, 1995, INDIAN J TECHNOL, V2, P137
[24]  
WALKER PL, 1965, FUEL, V44, P453
[25]  
YOUSSEF AM, 1994, J POLY SC, V55, P197
[26]   FINE-STRUCTURE OF LIGNITOUS COALS [J].
YOUSSEF, AM .
CARBON, 1975, 13 (01) :1-6
[27]  
YOUSSEF AM, 1989, B SOC CHIM FR, P741
[28]  
YOUSSEF AM, 1990, AFINIDAD, V47, P425
[29]  
YOUSSEF AM, 1995, J ENV SCI MANSOURA, V10, P195