In this work, mesoporous SBA-15 silica materials
were modified by in-situ polymerization method of aniline and polyaniline(PANI)/SBA-15
materials were obtained. The effect of the different amount of SBA-15 and
aniline on the textural and chemical properties of PANI/SBA-15 materials was
investigated. The synthesized materials were characterized by using X-ray
diffraction (XRD), nitrogen adsorption/desorption isotherms, Fourier transform
infrared (FTIR), ultraviolet-visible diffuse reflectance (UV-Vis-DRS)
spectroscopy analyses and Boehm titration method. XRD patterns showed that the
structural properties of SBA-15 were preserved in low aniline amount. It was
determined that, surface area, pore volume and pore diameter values decreased with
the incorporation of PANI to the structure of SBA-15. FTIR and UV-Vis-DRS
analyzes showed that, PANI successfully participates in the SBA-15 structure.
It was determined by Boehm titration analyses that the amounts of SBA-15 and
aniline significantly affect the basicity of the materials. Considering the
structural and chemical properties of the synthesized materials, it is thought
to be useful for low temperature carbon dioxide adsorption.
Bu
çalışmada, mezogözenekli SBA-15 silika malzemesi anilinin in-situ
polimerizasyon metodu ile modifiye edilmiş ve polianilin(PANI)/SBA-15
malzemeleri elde edilmiştir. Farklı SBA-15 ve anilin miktarlarının PANI/SBA-15
malzemelerinin yapısal ve kimyasal özellikleri üzerine etkileri incelenmiştir.
Sentezlenen malzemeler X-ışını kırınım desenleri (XRD), azot
adsorpsiyon/desorpsiyon izotermleri, Fourier dönüşümlü infrared (FTIR),
ultraviyole görünür bölge difüz reflektans (UV-Vis-DRS) spektroskopi analizleri
ve Boehm titrasyon metodu kullanılarak karakterize edilmiştir. XRD desenleri,
düşük anilin miktarında SBA-15’in yapısal özelliklerinin korunduğunu
göstermiştir. SBA-15’in yapısına PANI’nin katılması ile yüzey alan, gözenek
hacim ve gözenek çap değerlerinin düştüğü belirlenmiştir. FTIR ve UV-Vis-DRS
analizleri PANI’nin SBA-15 yapısına başarılı bir şekilde katıldığını
göstermiştir. Malzemelerin baziklik miktarına SBA-15 ve anilin miktarlarının
önemli ölçüde etki ettiği Boehm titrasyon analizleri ile belirlenmiştir.
Sentezlenen malzemelerin yapısal ve kimyasal özellikleri göz önünde
bulundurulduğunda düşük sıcaklık karbondioksit adsorpsiyonu için kullanılmaya
değer olduğu düşünülmektedir.
Primary Language | Turkish |
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Subjects | Engineering |
Journal Section | Research Articles |
Authors | |
Publication Date | December 31, 2018 |
Submission Date | August 19, 2018 |
Acceptance Date | November 30, 2018 |
Published in Issue | Year 2018 Volume: 23 Issue: 3 |
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