INSIGHTS INTO GREEN SYNTHESIS OF CLINOPTILOLITE SUPPORTED IRON NANOPARTICLES NITRATE REMOVAL FROM AUTOMOTIVE INDUSTRY

Aliyazicioğlu Ç., Erken E.

FRESENIUS ENVIRONMENTAL BULLETIN, vol.31, no.8, pp.8010-8021, 2022 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 31 Issue: 8
  • Publication Date: 2022
  • Journal Name: FRESENIUS ENVIRONMENTAL BULLETIN
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Aerospace Database, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), CAB Abstracts, Chemical Abstracts Core, Communication Abstracts, Environment Index, Geobase, Greenfile, Metadex, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Page Numbers: pp.8010-8021
  • Keywords: Green synthesis, iron nanocomposite, clinoptilolite, wastewater, nitrate removal, ZERO-VALENT IRON, AQUEOUS-SOLUTION, ENVIRONMENTAL REMEDIATION, GROUNDWATER REMEDIATION, NATURAL ZEOLITE, WATER-TREATMENT, PARTICLES, KINETICS, PB(II), NZVI
  • Marmara University Affiliated: Yes

Abstract

This study reports the synthesis of plant mediated iron nanoparticles using clinoptilolite, a natural clay, as the supporting material. Various iron/clinoptilolite mass ratios as well as iron/extract volumetric ratios have been investigated in 9 different composites (C/G-nZVI). The composites were characterized using SEM, BET, XRD, XPS and FT-IR. The optimum synthesis ratio was found to be 1/1 (V/V) iron precursor/green tea extract on 2 g of clinoptilolite for the most stable and effective composite. The nanocomposite was used for removal for nitrate from an automotive industry wastewater. Batch removal tests were conducted with 0.5, 1.0, 2.5, and 5.0 g of nanocomposite samples for 120 min at an initial pH of 4.4. The results showed that the removal percent of NO3--N with the optimized composite was 94%.