본문 바로가기
  • Home

Synthesis of nickel–manganese sulfide decorated with reduced graphene oxide nanocomposite for ultra-fast photocatalytic degradation of organic dye molecules

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2024, 34(2), pp.827-840
  • DOI : 10.1007/s42823-023-00654-5
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : June 20, 2023
  • Accepted : December 20, 2023
  • Published : March 28, 2024

Kandhasamy Narthana 1 Murugadoss Govindhasamy 1 Kannappan Thiruppathi 2 Kirubaharan Kamalan 3 Manavalan Rajesh Kumar 4 Devanesan Sandhanasamy 5 AlSalhi Mohamad S. 5 Mythili R. 6 Shinde Surendra 7 Yadav Hemraj M. 8

1Sathyabama Institute of Science and Technology
2SRM Valliammai Engineering College
3Alexander Dubcek University of Trencin
4Ural Federal University
5King Saud University
6Saveetha University
7Department of Physics, Arts, Science and Commerce College
8Shivaji University

Accredited

ABSTRACT

The untreated effluent dropping into the environment from various textile industries is a major issue. To solve this problem, development of an efficient catalyst for the degradation of macro dye molecules has attracted extensive attention. This work is mainly focused on the synthesis of nickel–manganese sulfide decorated with rGO nanocomposite (Ni–Mn-S/rGO) as an effective visible photocatalyst for degradation of textile toxic macro molecule dye. A simple hydrothermal method was used to synthesize Ni–Mn-S wrapped with rGO. The prepared composites were characterized using various techniques such as X-ray diffraction (XRD), high-resolution scanning electron microscopy (HR-SEM), high-resolution transmission electron microscopy (HR-TEM), Fourier transform infra-red spectrometer (FTIR), and ultra violet–visible (UV–Vis) spectroscopy. The photocatalytic performance of nickel sulfide (NiS), manganese sulfide (MnS), nickel–manganese sulfide (Ni–Mn-S), and Ni–Mn-S/rGO nanocomposite was assessed by analyzing the removal of acid yellow (AY) and rose bengal (RB) dyes under natural sun light. Among these, the Ni–Mn-S/rGO nanocomposite showed the high photocatalytic degradation efficiency of AY and RB dyes (20 ppm concentration) with efficiency at 96.1 and 93.2%, respectively, within 150-min natural sunlight irradiation. The stability of photocatalyst was confirmed by cycle test; it showed stable degradation efficiency even after five cycles. This work confirms that it is an efficient approach for the dye degradation of textile dyes using sulfide-based Ni–Mn-S/rGO nanocomposite.

Citation status

* References for papers published after 2022 are currently being built.