• Home
  • Search Results
  • 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, anhydrous, 99.8%
Sigma-Aldrich
Hydrogen peroxide solution, 30 % (w/w) in H2O, contains stabilizer
Supelco
Bisphenol A, ≥99%
Sigma-Aldrich
Hydrogen peroxide solution, 34.5-36.5%
Sigma-Aldrich
Acetonitrile solution, contains 0.1 % (v/v) trifluoroacetic acid, suitable for HPLC
Sigma-Aldrich
Potassium persulfate, 99.99% trace metals basis
Sigma-Aldrich
Acetonitrile
Sigma-Aldrich
Acetonitrile solution, contains 0.1 % (v/v) formic acid, suitable for HPLC
Sigma-Aldrich
Bisphenol A, 97%
Sigma-Aldrich
Sodium thiosulfate, ≥99.99% trace metals basis
Sigma-Aldrich
Acetonitrile, HPLC Plus, ≥99.9%, poly-coated bottles
Sigma-Aldrich
Acetonitrile, ≥99.5%, ACS reagent
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, 2 g/dL in deionized water
Sigma-Aldrich
Acetonitrile, electronic grade, 99.999% trace metals basis
Sigma-Aldrich
Acetonitrile
Sigma-Aldrich
Acetonitrile
Sigma-Aldrich
Acetonitrile solution, contains 0.05 % (w/v) ammonium formate, 0.1 % (v/v) formic acid, 5 % (v/v) water, suitable for HPLC
Sigma-Aldrich
Acetonitrile solution, contains 0.05 % (v/v) trifluoroacetic acid
Sigma-Aldrich
Acetonitrile
Sigma-Aldrich
Acetonitrile
Sigma-Aldrich
Acetonitrile
Sigma-Aldrich
Acetonitrile solution, NMR reference standard, 0.23 wt. % in D2O (99.9 atom % D), water 0.05 wt. %, NMR tube size 6.5 mm × 8 in.
Sigma-Aldrich
Acetonitrile solution, contains 10.0% acetone, 40.0% 2-propanol, 0.05% formic acid
Supelco
Acetonitrile, HPLC grade, ≥99.93%

Social Media

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon

MilliporeSigma

Research. Development. Production.

We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.

© 2021 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved.

Reproduction of any materials from the site is strictly forbidden without permission.