STUDY ON APPLICATION OF BiFeO3 IN TREATING METHYLENE BLUE IN TEXTILE DYEING WASTEWATER

  • Nguyen Bich Ngoc
  • Ngo Thanh Son
Keywords: Methylene blue, modified materials, textile dyeing, BiFeO3

Abstract

This study presents the process of synthesizing BiFeO3 by the Gel – Polymer combustion method under optimal condition, selected through the investigation of influencing factors and the characteristic of materials, including the Gel formation temperature (80°C), the molar ratio of Bi/Fe (1/1), the molar ratio of the mixture metal/PVA (1/3), pH=1, and the sample is heated at 500oC for 2 hours. Application of BiFeO3 on removal 100ml of textile dyeing wastewater at concentration 5ppm methylene blue shows relatively good results y at different dilution conditions (f = 2, 5, 10) is 49-65% removal efficiency. The highest efficiency has been obtained in condition the sample was diluted 10 times in 120 minutes contact time under ultraviolet light (wavelength λ = 285nm).

điểm /   đánh giá
Published
2022-11-11
Issue
No. 53 (2021)
Section
CONTENTS