TY - JOUR
T1 - Catalytic remediation of phenol contaminated wastewater using Cu-Zn hydroxide nitrate
AU - Srikhaow, Assadawoot
AU - Smith, S. Meejoo
AU - Uraisin, Kanchana
AU - Suttiponparnit, Komkrit
AU - Kongmark, Chanapa
AU - Chuaicham, Chitiphon
N1 - Funding Information:
This work was financially supported by the Thailand Research Fund through the Royal Golden Jubilee Ph. D Program (grant no. PHD/0119/2553) and the National Research Council of Thailand. Instrumentation was provided by the Synchrotron Light Research Institute, PTT Public Company Limited, and the Faculty of Science, Mahidol University. Authors also thank Prof. Chatvalee Kalambaheti, Prof. Atitaya Siripinyanond and Ms Weerawan Waiyawat for their technical assistance and valuable discussion.
Publisher Copyright:
© The Royal Society of Chemistry 2016.
PY - 2016
Y1 - 2016
N2 - This work highlights an application of Cu-Zn hydroxide nitrate (denoted as 6Cu-Zn) as a highly effective and reusable catalyst for catalytic wet peroxide oxidation of phenol under mild conditions (35 °C). PXRD and XANES experiments were carried out to confirm a single phase of copper hydroxide nitrate in the 6Cu-Zn sample. The catalytic activity of 6Cu-Zn for degrading phenol was reported in terms of the percent phenol conversion, and chemical oxygen demand (COD) removal efficiency. Treatment of 100, 200, and 500 ppm aqueous phenol solutions with H2O2/6Cu-Zn resulted in complete phenol degradation within 10 min. The 6Cu-Zn catalyst can be reused for up to five consecutive runs while maintaining complete phenol conversion and COD removal efficiency (greater than 90%) after water washing. This work introduces a simple, mild, energy efficient and effective pretreatment method for highly toxic wastewater which could be applied prior to feeding the pretreated wastewater to subsequent conventional treatment units.
AB - This work highlights an application of Cu-Zn hydroxide nitrate (denoted as 6Cu-Zn) as a highly effective and reusable catalyst for catalytic wet peroxide oxidation of phenol under mild conditions (35 °C). PXRD and XANES experiments were carried out to confirm a single phase of copper hydroxide nitrate in the 6Cu-Zn sample. The catalytic activity of 6Cu-Zn for degrading phenol was reported in terms of the percent phenol conversion, and chemical oxygen demand (COD) removal efficiency. Treatment of 100, 200, and 500 ppm aqueous phenol solutions with H2O2/6Cu-Zn resulted in complete phenol degradation within 10 min. The 6Cu-Zn catalyst can be reused for up to five consecutive runs while maintaining complete phenol conversion and COD removal efficiency (greater than 90%) after water washing. This work introduces a simple, mild, energy efficient and effective pretreatment method for highly toxic wastewater which could be applied prior to feeding the pretreated wastewater to subsequent conventional treatment units.
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U2 - 10.1039/c5ra22326a
DO - 10.1039/c5ra22326a
M3 - Article
AN - SCOPUS:84968658906
SN - 2046-2069
VL - 6
SP - 36766
EP - 36774
JO - RSC Advances
JF - RSC Advances
IS - 43
ER -