Evaluation of new integrated photo-catalyst adsorbent for removal of haloacetonitriles from water

Subject Areas :

Ehsan Ghorban Nezhad ¹ , Behrooz Mahmoodzadeh Vaziri ²

1 - Department of Chemical engineering, Quchan branch, Islamic Azad University, Quchan, Iran
2 - Department of Chemical engineering, Quchan branch, Islamic Azad University, Quchan, Iran

Received: 2023-03-08 Accepted : 2023-04-16 Published : 2023-09-05

Keywords: Graphene oxide, Haloacetonitrile, MoTiO3 nanocomposite, Photo-catalyst adsorbent,

Abstract :

In this study, a new integrated photo-catalyst adsorbent is prepared to degrade the harmful organic compounds of water in the presence of light irradiation. A citric acid assisted sol-gel method was employed to perovskite MoTiO3/GO nanocomposites preparation. The characteristics of the samples were performed by SEM, BET, FTIR and XRD analysis. Results showed that the synthesized MoTiO3 nanoparticles with average size of 26 nm were successfully deposited onto the graphene oxide (GO) adsorbent. Increasing the content of GO up to 1.5 wt.% in nanocomposite has an increasing effect on specific surface area. MoTiO3/GO photocatalytic activity was investigated by the haloacetonitriles (HANs) decomposition under UV irradiation. The MoTiO3/(GO,1.5wt.%) nanocomposite displayed significant HANs removal capability up to 98.24% and excellent photocatalytic activity after 120 minutes of UV irradiation. Therefore, it can be said that the MoTiO3/GO is a potential photo-catalyst for effective wastewater treatment of disinfection by-products (DBPs) and future industrial applications.

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