Facile photo-ultrasonic assisted reduction for preparation of rGO/Ag 2 CO 3 nanocomposites with enhanced photocatalytic oxidation activity for tetracycline

Various antibiotics in the aquatic systems have threat the aquatic ecosystem balance and the human health. In this study, a degradation treatment method for tetracycline (TC), one of the commonly used antibiotics, was explored by using novel photocatalysts of rGO/Ag CO under simulated sunlight, beca...

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Published inUltrasonics sonochemistry Vol. 51; p. 166
Main Authors Reheman, Abulajiang, Kadeer, Kuerbangnisha, Okitsu, Kenji, Halidan, Maimaiti, Tursun, Yalkunjan, Dilinuer, Talifu, Abulikemu, Abulizi
Format Journal Article
LanguageEnglish
Published Netherlands 01.03.2019
Subjects
Carbonates - chemistry
Electrochemistry
Graphite - chemistry
Hydrogen-Ion Concentration
Models, Molecular
Molecular Conformation
Oxidation-Reduction
Oxides - chemistry
Photolysis
Silver Compounds - chemistry
Temperature
Tetracycline - chemistry
Ultrasonic Waves
rGO/AgCO
Photocatalytic mechanism
Ultrasound
Tetracycline
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Summary:Various antibiotics in the aquatic systems have threat the aquatic ecosystem balance and the human health. In this study, a degradation treatment method for tetracycline (TC), one of the commonly used antibiotics, was explored by using novel photocatalysts of rGO/Ag CO under simulated sunlight, because conventional treatment methods are not efficient on the removal of TC. rGO/Ag CO nanocomposites were synthesized via a facile photo-ultrasonic assisted reduction method. More than 90% of TC was removed by 1% (weight /weight ) rGO/Ag CO within 60 min at pH = 4, which was about 1.3 times higher than that of pure Ag CO . The cycling experiments indicated that 1% rGO/Ag CO was highly stable and could be reused for at least 5 cycles without significant deactivation to its photocatalytic activity. In addition, the effects of pH, temperature, and dosage amount of 1% rGO/Ag CO on photocatalytic degradation were investigated. Meanwhile, the effect of ultrasonic on the degradation of TC was also investigated. This study can provide a new method for the preparation of smaller nanosized materials and photocatalysts with high activity and stability for its environmental or other applications.
ISSN:1873-2828