CO₂ Adsorption in Cu₂BaSnS₄/Polyaniline Composites: A Synergistic Approach

Abstract

The incorporation of conductive polymers with chalcogenide-based materials has shown promising prospects in enhancing CO₂ adsorption performance. In this paper, a novel Polyaniline/Cu2BaSnS4 (PANI/CBTS) composite was synthesized by the polymerization of aniline inside the pores of Cu₂BaSnS₄ for investigating the synergistic effect of CBTS incorporation on CO₂ uptake and release behavior in PANI. All composite materials were prepared with varied content of CBTS, and addition of 5% of CBTS showed the most promising results. The studies via BET surface area revealed that introduction of CBTS in PANI optimizes the porosity of composite material along with its surface properties and results in enhancement of CO₂ adsorption capacity over pristine PANI. Meanwhile, the SEM and XRD analysis confirmed the homogeneous dispersion of CBTS particles in the composite and the crystalline integrity of CBTS. The adsorption-desorption cycles of CO₂ showed a sharp decrease in uptake following the addition of CBTS because the micro- and mesopores of PANI were blocked by CBTS particles, impeding the adsorption-desorption process. However, the as-received PANI/CBTS5 composite demonstrated relatively promising performance for CO₂ capture applications and opened up new avenues for the pursuit of effective and sustainable development in adsorbent materials.

Keywords

• Cu2BaSnS4
• CO2 adsorption
• Polyaniline
• composite.

Cu₂BaSnS₄/Polyanilin Kompozitlerinde CO₂ Adsorpsiyonu: Sinerjik Bir Yaklaşım

Öz

İletken polimerlerin kalkojenit bazlı malzemelerle birleştirilmesi, CO₂ adsorpsiyon performansını artırmada umut verici umutlar göstermiştir. Bu makalede, yeni bir Polianilin/Cu2BaSnS4 (PANI/CBTS) kompoziti, Cu₂BaSnS₄ gözenekleri içinde anilinin polimerizasyonu ile sentezlenmiş ve CBTS'nin PANI'de CO₂ alımı ve salınımı davranışı üzerindeki sinerjik etkisi araştırılmıştır. Tüm kompozit malzemeler çeşitli CBTS içerikleriyle hazırlanmış ve %5 CBTS ilavesi en umut verici sonuçları göstermiştir. BET yüzey alanı üzerinden yapılan çalışmalar, CBTS'nin PANI'ye eklenmesinin kompozit malzemenin gözenekliliğini yüzey özellikleriyle birlikte optimize ettiğini ve bozulmamış PANI'ye göre CO₂ adsorpsiyon kapasitesinin artmasına neden olduğunu ortaya koymuştur. Bu arada, Taramalı Elektron Mikroskobu (SEM) ve X-ışını Kırınım (XRD) analizleri CBTS partiküllerinin kompozit içinde homojen dağılımını ve CBTS'nin kristal bütünlüğünü doğrulamıştır. CO₂'nin adsorpsiyon-desorpsiyon döngüleri, CBTS ilavesini takiben alımında keskin bir düşüş gösterdi çünkü PANI'nin mikro ve mezo gözenekleri CBTS partikülleri tarafından bloke edildi ve adsorpsiyon-desorpsiyon sürecini engelledi. Bununla birlikte, elde edilen PANI/CBTS5 kompoziti, CO₂ yakalama uygulamaları için nispeten umut verici bir performans göstermiş ve adsorban malzemelerde etkili ve sürdürülebilir gelişim arayışları için yeni yollar açmıştır.

Anahtar Kelimeler

• Cu2BaSnS4
• CO2 adsorpsiyon
• Polyanilin
• Komposite

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