SYNTHESIS OF POLYANILINE-BASED CATALYSTS: PHOTOCATALYTIC DEGRADATION OF METHYLENE BLUE

Nazlı Türkten; Yunus Karataş; Yelda Yalçın Gürkan

doi:10.17780/ksujes.1618816

EN TR

SYNTHESIS OF POLYANILINE-BASED CATALYSTS: PHOTOCATALYTIC DEGRADATION OF METHYLENE BLUE

Abstract

The increasing use of dyes in various industries has raised concerns regarding the potential release of harmful substances into the environment and their influence on human health. The incorporating style of polyaniline-based catalysts has attracted great interest in the field of photocatalysis, specifically for dye degradation from water. Polyaniline CuO (PANI-CuO) catalysts with varying PANI/CuO mole ratios (1:8, 1:1, and 8:1) were synthesized by in-situ chemical oxidation polymerization (PCI) and mechano-chemical preparation (PCS) methods. FTIR, XRD, and SEM analyses confirmed the presence of CuO and PANI in PCS catalysts. However, CuO particles were not detected in PCI specimens due to the dissolution of CuO in a highly acidic medium. The photocatalytic efficiency of prepared two different series of PANI-CuO catalysts was assessed by the degradation of methylene blue (MB) dye degradation for comparative purposes. The results implied that the preparation process significantly concerns the photocatalytic performance with PCI catalysts exhibiting higher MB photocatalytic degradation than PCS specimens. The PCI-18 specimen achieved 56% degradation of MB in 300 minutes.

Keywords

POLİANİLİN İÇERİKLİ KATALİZÖRLERİN SENTEZİ: METİLEN MAVİSİNİN FOTOKATALİTİK DEGRADASYONU

Öz

Günümüzde boyalar birçok endüstride kullanılmakta olup, insan sağlığı üzerinde olumsuz etkileri olan zararlı maddelerin çevreye salınması endişe yaratmaktadır. Bu nedenle, polimer içerikli katalizörlerin hazırlanması ve sudan boyaların uzaklaştırılmasında kullanımı özellikle fotokataliz alanında büyük ilgi çekmektedir. Polianilin CuO (PANI-CuO) katalizörleri eş-anlı kimyasal oksidasyon polimerizasyonu (PCI) ve mekaniksel-kimyasal (PCS) olmak üzere iki farklı yöntem ile hazırlanmıştır. Bu yöntemlerde, PANI/CuO mol oranları (1:8, 1:1 ve 8:1) olacak şekilde kompozitler sentezlenmiştir. PCS katalizörlerinde, PANI ve CuO varlığı FTIR, XRD ve SEM analizleri kullanılarak saptanmıştır. Ancak, PCI örneklerinde yüksek asidik ortamda CuO çözünmesine bağlı olarak, CuO tanecikleri tespit edilememiştir. İki farklı seri olarak hazırlanan PANI-CuO katalizörlerinin fotokatalitik etkinliği, metilen mavisi (MB) kullanılarak, karşılaştırmalı olarak test edilmiştir. PCI katalizörlerinin MB boyasının fotokatalitik degradasyonunda PCS örneklerine kıyasla daha etkili olduğu gözlenmiştir. PCI-18 örneği kullanılarak, MB boyası %56 degradasyonuna 300 dakikada sonunda ulaşılmıştır.

Anahtar Kelimeler

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Details

Primary Language

English

Subjects

Environmental Pollution and Prevention , Environmental Engineering (Other)

Journal Section

Research Article

Authors

Nazlı Türkten
0000-0001-9343-3697
Türkiye

Yunus Karataş ^*
0000-0002-3826-463X
Türkiye

Yelda Yalçın Gürkan
0000-0002-8621-2025
Türkiye

Publication Date

June 3, 2025

Submission Date

January 13, 2025

Acceptance Date

February 6, 2025

Published in Issue

Year 2025 Volume: 28 Number: 2

DOI

https://doi.org/10.17780/ksujes.1618816

IZ

https://izlik.org/JA32BG39GA

Cite

RIS / Bibtex

APA

Türkten, N., Karataş, Y., & Yalçın Gürkan, Y. (2025). SYNTHESIS OF POLYANILINE-BASED CATALYSTS: PHOTOCATALYTIC DEGRADATION OF METHYLENE BLUE. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, 28(2), 851-862. https://doi.org/10.17780/ksujes.1618816

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