SO2 ADSORPTION CAPABILITY OF ACTIVATED CARBON NANOFIBERS PRODUCED BY DIFFERENT ACTIVATION PROCESS PARAMETERS

Year 2016, Volume: 26 Issue: 4, 407 - 413, 30.12.2016

Nuray Ucar , Zeynep Cavdar Nilgun Karatepe Pelin Altay Nuray Kızıldag

Abstract

In this study, the effect of activation time and flow rate of CO2 on the SO2 adsorption properties of activated carbon nanofiber has been investigated. The activation process was performed under different CO2 flow rates (100 and 150 mL/min) and activation times (30 and 60 minutes). At the FTIR spectra, the formation of a new peak at around 1050 cm-1 after SO2 adsorption test, showed the presence of SO2 adsorbed on the activated carbon nanofibers. The elemental analyses also confirmed the presence of S atom in the analysed sample after SO2 adsorption test. It has been seen that an increase in activation time and decrease in CO2 feeding rate resulted in an increase in SO2 adsorption capability of activated carbon nanofibers. Rather than the flow rate of the activation gas, activation time has higher effect on the SO2 adsorption capability of activated carbon nanofibers.

Keywords

Electrospinning, carbonization, activated carbon nanofiber, SO2 adsorption

FARKLI AKTİVASYON PROSES PARAMETRELERİ İLE ÜRETİLEN AKTİVE EDİLMİŞ KARBON NANOLİFLERİN SO2 ADSORPSİYON ÖZELLİKLERİ

Abstract

Bu çalışmada, aktivasyon süresi (30 dakika ve 60 dakika) ve aktivasyon gaz (CO2) besleme hızları (100 mL/dak ve 150 mL/dak) değiştirilerek, aktif karbon nanoliflerin, zararlı SO2 gazını adsorplama özelliği incelenmiştir. FTIR analizinde 1050 cm-1 civarlarında görülen pik ve SEM-EDS elemental analizde tespit edilen S elementi, adsorplamanın gerçekleştiğini göstermektedir. CO2 besleme hızı azaldıkça ve aktivasyon süresi arttıkça, SO2 adsorplama miktarının arttığı, her iki parametrenin artması ile aktive olmuş nanolifin lif çapının düştüğü görülmüştür. SO2 adsorplama kapasitesine tesir bakımından, aktivasyon süresi değişiminin, CO2 besleme hızı değişiminden daha fazla tesirli olduğu tespit edilmiştir.

Keywords

Elektroeğirme, karbonizasyon, aktif karbon nanolif, SO2 adsorplama

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