Carbon molecular sieves produced by the fixation of sulphur surface complexes |
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Authors: | C Moreno-Castilla I Fernández-Morales M Domingo-Garcia F J López-Garzón |
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Institution: | (1) Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain |
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Abstract: | Summary A Saran carbon has been treated with carbon disulphide and sulphur in order to introduce sulphur surface complexes, a commercial activated carbon was also used. Samples obtained were characterized by their surface areas and porosities. The adsorption of n-hexane, benzene and cyclohexane has been measured out at high temperatures and under dynamic conditions using a gas chromatographic technique. Results were compared with those obtained when oxygen-surface complexes were introduced and it can be concluded that when CS2 is used with a highly microporous carbon, such as Saran, a molecular sieve for cyclohexane (mean size 0.58 nm) is produced at determined amounts of sulphur fixed. |
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Keywords: | Gas-solid chromatography Carbon molecular sieves |
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