Determination of photocatalytic process parameters on phenol degradation using TiO2-MWCNT (cocoPAS) composite

Desi Heltina Desi Heltina,Komalasari Komalasari,Nadhia Gasani Putri Nadhia Gasani Putri,Bima Afiq Naufal Bima Afiq Naufal,Panca Setia Utama Panca Setia Utama

doi:10.30574/ijsra.2021.3.2.0132

Desi Heltina Desi Heltina, Komalasari Komalasari + Show 3 more

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https://doi.org/10.30574/ijsra.2021.3.2.0132

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Abstract

Multi-walled carbon nanotubes (MWCNT) were prepared by treatment of cocoPas and titanium dioxide nanocomposites TiO2 – MWCNT (cocoPAS) prepared by stirring and mixing method was used as a photocatalyst for the degradation of phenol in water under light irradiation. The morphology and microstructure of the composites were characterized with SEM, FT-IR, BET, XRD and UV-visible spectrophotometer. The purpose of this study were synthesize TiO2-MWCNT (cocoPAS) composite and evaluate its performance for photodegradation phenol. It was found that the degree of photodegradation of phenol under UV light was highly dependent on the concentration of phenol and the degradation temperature. The presence of MWCNT worked as the adsorbent and electron acceptor to efficiently enhance the phenol photodegradation. The as-prepared nanotubes, with surfactant contents, showed high- photocatalytic activities with increase degradation. These results indicate that TiO2 – MWCNT (cocoPAS)composites using cocoPAS can be used to enhance degradation and can expand potential applications for the degradation of organic pollutants.

Highlights

Various organic pollutants in wastewaters are highly toxic and non-biodegradable nature, one of which is phenol
We propose the determination of temperature and concentration in phenol degrading using photocatalyst of TiO2MWCNT composite to obtain the highest percentage of phenol degradation
The presence of Multi-walled carbon nanotubes (MWCNT) functions as an adsorbent and electron acceptor to enhance the photodegradation of phenol efficiently

Summary

Introduction

Various organic pollutants in wastewaters are highly toxic and non-biodegradable nature, one of which is phenol. Treating wastewater containing phenol has been proposed by various technologies such as adsorption, activated carbon, chemical oxidation, and biological treatment. These common technologies required time-consuming, high operation cost, and possible production of toxic by-product [2]. Heterogenous photocatalysis, which is an Advanced Oxidation Process (AOP) is a potential technology to degrade phenol. These techniques produce and use highly reactive radical like hydroxyl radical (OH) that degrade the organic pollutants to carbon dioxide and water, which is more environmentally friendly and biodegradable. Degrade organic pollutants with photocatalytic process known as photodegradation [3]

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