Ameliorative photocatalytic dye degradation of hydrothermally synthesized bimetallic Ag-Sn hybrid nanocomposite treated upon domestic wastewater under visible light irradiation

Rajesh Pandiyan; Selvakumar Dharmaraj; Sivasankaran Ayyaru; Abimanyu Sugumaran; Jeevasree Somasundaram; Amsa Samreen Kazi; Sumathi C Samiappan; Veeramuthu Ashokkumar; Chawalit Ngamcharussrivichai

doi:10.1016/j.jhazmat.2021.126734

Ameliorative photocatalytic dye degradation of hydrothermally synthesized bimetallic Ag-Sn hybrid nanocomposite treated upon domestic wastewater under visible light irradiation

J Hazard Mater. 2022 Jan 5:421:126734. doi: 10.1016/j.jhazmat.2021.126734. Epub 2021 Jul 24.

Authors

Rajesh Pandiyan¹, Selvakumar Dharmaraj², Sivasankaran Ayyaru³, Abimanyu Sugumaran⁴, Jeevasree Somasundaram⁵, Amsa Samreen Kazi⁵, Sumathi C Samiappan⁶, Veeramuthu Ashokkumar⁷, Chawalit Ngamcharussrivichai⁸

Affiliations

¹ Centre for Materials Engineering and Regenerative Medicine, Bharath Institute of Higher Education and Research, Bharath University (Deemed to be University) Selaiyur, Chennai 600073, Tamil Nadu, India. Electronic address: rajesh.research@bharathuniv.ac.in.
² Department of Marine Biotechnology, AMET University, Chennai 603103, Tamil Nadu, India.
³ Environmental Biology Laboratory, Department of Civil Engineering, Yeungnam University, Gyungsan 712-749, South Korea.
⁴ Department of Pharmaceutics, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, Tamil Nadu, India.
⁵ Department of Biochemistry, Karpagam Academy of Higher Education, Karpagam University, Coimbatore 641021, Tamil Nadu, India.
⁶ Department of Chemistry and Biosciences, Srinivasa Ramanujan Centre, SASTRA University, Kumbakonam 612001, Tamil Nadu, India.
⁷ Center of Excellence in Catalysis for Bioenergy and Renewable Chemicals (CBRC), Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand. Electronic address: rvashok2008@gmail.com.
⁸ Center of Excellence in Catalysis for Bioenergy and Renewable Chemicals (CBRC), Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; Center of Excellence on Petrochemical and Materials Technology (PETROMAT), Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand.

PMID: 34365234
DOI: 10.1016/j.jhazmat.2021.126734

Abstract

Industrial and textile dyes are the major source of water pollutants in the Coimbatore Districts of Tamil Nadu, India. The highly stable organic dyes from these industries are being discharged untreated into neighboring rivers, lakes, and ponds. Thus, the present study mainly focused on the preparation of bimetallic nanocomposite (Ag-Sn) through Free-facile Teflon autoclave methodology and their subsequent stimulation has given to the photocatalyst by visible light irradiation. This visible light stimulates and irradiates the photocatalysts from steady state to the excited state and might help in absorption of the nanosized dye materials and organic matter. The nanocomposite was characterized using UV, FTIR, Zeta-sizer, XRD and FE-SEM. These parameters exhibited significant lattice structures with an average size of 127.6 nm. Further the nanocomposite treated samples were tested for water quality parameters like TDS, BOD, COD, heavy metals, sedimentation rate and bacterial population. Likewise, the samples irradiated with visible light for photocatalytic activity exhibited a significant intensity of C/C₀ at 0.42 and 0.28. The treated water used for green gram seedling assay exhibited significant growth. Scavengers from Ag-Sn bimetallic nanocomposite plays the major role in dye degradation. The results clearly suggest that Ag-Sn bimetallic nanocomposite can be used for wastewater treatment and the subsequent treated water can be utilized for agriculture purposes.

Keywords: Ag-Sn hybrid nanocomposite; Domestic wastewater; Malachite green; Photocatalytic activity; Visible light irradiation; Zeta sizer.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Catalysis
India
Light
Nanocomposites*
Wastewater*

Substances

Waste Water