Synthesis and comparison analysis of modified silica adsorbent and bismuth catalyst for removal of bisphenol A
Document Type
Article
Publication Date
6-1-2023
Abstract
A novel material, Tris coated magnetic nano structured adsorbent (T-MNSA) was synthesized using incipient wetness impregnation method for removal of bisphenol A (BPA). T-MNSA maximum adsorption capacity was 160 mg/g and sorption density was 0.078 mole BPA/mole of Tris. In addition, degradation using ultrasound assisted bismuth ferrite (BF) sono-catalyst was studied for removal and cost efficiency differences. The degradation results show a complete removal of BPA at condition of 0.10 g/l of BF, 100% power, and 72 kHz frequency. The mechanism study reveals that T-MNSA forms biomolecules and covalently attaches to BPA, but BF generates large amount of H2O2 molecules and breaks down BPA to non-toxic CO2 and water. Cost analysis study reveals that T-MNSA is more economical than BF due to lower production and removal cost, almost ten times lower than degradation process using BF, and the material can be commercially produced in bulk quantities.
Keywords
adsorption materials, sonocatalytic degradation, endocrine disrupting compounds, mechanism of BPA removal
Divisions
sch_civ,ocean
Funders
Universiti Malaya (RP008C-14SUS)
Publication Title
ScienceAsia
Volume
49
Issue
3
Publisher
Science Society of Thailand
Publisher Location
PUBLIC INFORMATION DEPT, 73/1 RAMA VI RD, RAJDHEVEE, BANGKOK, 00000, THAILAND