Green Synthesis of Iron Nanoparticles Using Black Tea Leaves Extract as Adsorbent for Removing Eriochrome Blue-Black B Dye

Ghanim, Dalal; Al-Kindi, Ghayda Y.; Hassan, Ahmed Kh.

doi:10.30684/etj.v38i10A.1225

	Green Synthesis of Iron Nanoparticles Using Black Tea Leaves Extract as Adsorbent for Removing Eriochrome Blue-Black B Dye
Engineering and Technology Journal
Article 15, Volume 38, 10A, 2020, Pages 1558-1569 PDF (1.17 M)
Document Type: Research Paper
DOI: 10.30684/etj.v38i10A.1225
Authors
Dalal Ghanim^* ¹; Ghayda Y. Al-Kindi²; Ahmed Kh. Hassan³
¹Sanitary and Environmental Branch, Civil Engineering Department, University of Technology, Baghdad,
²Sanitary and Environmental Branch, Civil Engineering Department, University of Technology, Baghdad, Iraq.
³Environment and Water Directorate, Ministry of Science and Technology, Baghdad.
Abstract
Recently, the world has directed to find environmentally friendly and clean materials to be used to treat wastes difficult to treat in the traditional way such as dyes. The object of this study was to synthesize iron nanoparticles using black tea extracts in an environmentally sustainable method. Also, it was developed by supporting with bentonite, used to remove Eriochrome blue-black B dyes from synthesis wastewater of textile factory. From the results, it was noted that black tea leaf extract has reduced iron ions to iron nanoparticles at room temperature. Composite iron nanoparticles were characterized using Scanning Electron Microscope (SEM), and Atomic force microscopy (AFM) studies where the diameter of iron nanoparticles was less than 70 nm. This research shows that ferrous nanoparticles can be manufactured using black tea leaf extract as a reducing agent. It also shows better-supported nanoparticles than unsupported. The decolorization efficiency catalyzed BT-NZVI, B-BT-NZVI increased from (14%, 42%) to (48%, 68%) at 180 min of batch processes when the NZVI concentration was increased from 0.5 g/L to 2 g/L respectively.
Keywords
bentonite; black tea leaves; SEM; synthesizing Nanoparticles

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