Ni/Co/Carbon nitride derived from ZIF-67 (MOF) nanocomposite: Enhanced light-driven photocatalytic degradation of methylparaben, mechanism & toxicity

Srivalli Thimmarayan; Harshavardhan Mohan; Bala Murali Krishna Vasamsetti; Gitae Kim; Karthi Natesan; Arul Jayaprakash; Taeho Shin

doi:10.1016/j.chemosphere.2023.140680

Ni/Co/Carbon nitride derived from ZIF-67 (MOF) nanocomposite: Enhanced light-driven photocatalytic degradation of methylparaben, mechanism & toxicity

Chemosphere. 2024 Jan:347:140680. doi: 10.1016/j.chemosphere.2023.140680. Epub 2023 Nov 9.

Authors

Srivalli Thimmarayan¹, Harshavardhan Mohan², Bala Murali Krishna Vasamsetti³, Gitae Kim², Karthi Natesan⁴, Arul Jayaprakash⁵, Taeho Shin⁶

Affiliations

¹ PG & Research Department of Biochemistry, Sacred Heart College (Autonomous), Tirupattur- 635 601, Affiliated to Thiruvalluvar University, Serkkadu, Vellore, 632115, Tamil Nadu, India.
² Department of Chemistry, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju, 54896, Republic of Korea.
³ Toxicity and Risk Assessment Division, Department of Agro-Food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration, Wanju-gun, 55365, Republic of Korea.
⁴ Department of Biochemistry, School of Applied Sciences, REVA University, Bengaluru, Karnataka, 560064, India.
⁵ PG & Research Department of Biochemistry, Sacred Heart College (Autonomous), Tirupattur- 635 601, Affiliated to Thiruvalluvar University, Serkkadu, Vellore, 632115, Tamil Nadu, India. Electronic address: jayaprakash@shctpt.edu.
⁶ Department of Chemistry, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju, 54896, Republic of Korea. Electronic address: shin@jbnu.edu.

PMID: 37951398
DOI: 10.1016/j.chemosphere.2023.140680

Abstract

A nickel oxide/cobalt/carbon nitride (Ni/Co/CN) nanocomposite synthesized via co-precipitation was used for the degradation of methylparaben (MEP). Various analytical techniques were used to ascertain the structural, optical, and electrochemical characteristics of the synthesized nanocomposite. The unique nature of the compound without any free particles over the CN was established. Photocatalytic degradation studies demonstrated the superiority of 3-Ni/Co/CN over bare NiO, Co/CN, 1-Ni/Co/CN, and 5-Ni/Co/CN. Near complete MEP degradation (100%) was achieved after 120 min of incubation with MEP 75 mg L^-1 in acidic medium pH (3) for an initial concentration of 3-Ni/Co/CN (10 mg/100 mL). HPLC-MS/MS analysis was used to elucidate the degradation pathway, and the catalyst was found stable for four subsequent cycles. Hence, our nanocatalyst effectively degraded MEP. Furthermore, microbial, aquatic, and animal studies demonstrated the environmental efficiency of the synthesized nanomaterials.

Keywords: Carbon nitride; Methylparaben; Nickel; Photocatalysis; Toxicity.

MeSH terms

Nanocomposites*
Nitriles / chemistry
Tandem Mass Spectrometry*

Substances

cyanogen
methylparaben
Nitriles