Skip to Content
MilliporeSigma
  • Treatment of aqueous bisphenol A using nano-sized zero-valent iron in the presence of hydrogen peroxide and persulfate oxidants.

Treatment of aqueous bisphenol A using nano-sized zero-valent iron in the presence of hydrogen peroxide and persulfate oxidants.

Water science and technology : a journal of the International Association on Water Pollution Research (2015-06-13)
B Girit, D Dursun, T Olmez-Hanci, I Arslan-Alaton
ABSTRACT

Bisphenol A (BPA) is an industrial pollutant considered as one of the major endocrine-disrupting chemicals found in natural waters. In the present study, the use of a commercial, air-stable, zero-valent iron (ZVI) powder, consisting of Fe0 surface stabilized nanoparticles was examined for the treatment of 20 mg/L, aqueous BPA solutions. The influence of pH (3, 5, 7), addition of hydrogen peroxide (HP) and persulfate (PS) oxidants (0.0, 1.25 and 2.5 mM) as well as temperature (25 and 50 °C) was studied for BPA treatment with 1 g/L ZVI. ZVI coupled with HP or PS provided an effective treatment system, which was based on rapid ZVI-mediated decomposition of the above-mentioned oxidants, resulting in complete BPA as well as significant total organic carbon (TOC) (88%) removals, in particular when PS was employed as the oxidant. Increasing the PS concentration and reaction temperature dramatically enhanced PS decomposition and BPA removal rates, whereas HP was not very effective in TOC removals and at elevated temperatures. According to the bioassays conducted with Vibrio fischeri and Pseudokirchneriella subcapitata, the acute toxicity of aqueous BPA fluctuated at first but decreased appreciably at the end of ZVI/PS treatment.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Acetonitrile solution, contains 10.0% acetone, 0.05% formic acid, 40.0% 2-propanol
Sigma-Aldrich
Sodium thiosulfate solution, 0.025 M
Sigma-Aldrich
Sodium thiosulfate solution, 0.1 M
Sigma-Aldrich
Hydrogen peroxide solution, SAJ first grade, ≥30.0%
Sigma-Aldrich
Sodium thiosulfate solution, 0.01 M
Sigma-Aldrich
Acetonitrile solution, contains 0.05 % (w/v) ammonium formate, 5 % (v/v) water, 0.1 % (v/v) formic acid, suitable for HPLC
Sigma-Aldrich
Acetonitrile solution, contains 0.05 % (v/v) trifluoroacetic acid
Sigma-Aldrich
Acetonitrile solution, contains 0.1 % (v/v) trifluoroacetic acid, suitable for HPLC
Sigma-Aldrich
Sodium Thiosulfate Solution, 2 g/dL in deionized water
Sigma-Aldrich
Hydrogen peroxide solution, 30 % (w/w) in H2O, contains stabilizer
Sigma-Aldrich
Acetonitrile solution, contains 0.1 % (v/v) formic acid, suitable for HPLC
Sigma-Aldrich
Hydrogen peroxide solution, contains potassium stannate as inhibitor, 30-32 wt. % in water, semiconductor grade, 99.999% trace metals basis
Sigma-Aldrich
Sodium thiosulfate solution, 1 M
Sigma-Aldrich
Hydrogen peroxide solution, 34.5-36.5%
Sigma-Aldrich
Acetonitrile, HPLC Plus, ≥99.9%, poly-coated bottles
Sigma-Aldrich
Acetonitrile, for residue analysis, JIS 5000
Sigma-Aldrich
Acetonitrile, ≥99.8%, for residue analysis, JIS 300
Sigma-Aldrich
Acetonitrile, ≥99.8%, for residue analysis, JIS 1000
Sigma-Aldrich
Acetonitrile, ≥99.8%, suitable for HPLC
Sigma-Aldrich
Acetonitrile, SAJ first grade, ≥99.0%
Sigma-Aldrich
Acetonitrile, JIS special grade, ≥99.5%
Sigma-Aldrich
Acetonitrile, for chromatography
Sigma-Aldrich
Sodium thiosulfate, ≥99.99% trace metals basis
Sigma-Aldrich
Potassium persulfate, 99.99% trace metals basis
Sigma-Aldrich
Bisphenol A, 97%
Sigma-Aldrich
Acetonitrile, ≥99.5%, ACS reagent
Sigma-Aldrich
Acetonitrile, anhydrous, 99.8%
Supelco
Bisphenol A, ≥99%
Supelco
Acetonitrile, HPLC grade, ≥99.93%
Sigma-Aldrich
Acetonitrile, electronic grade, 99.999% trace metals basis