The enhancing effect of weak magnetic field on degradation of Orange II by zero-valent iron

AbstractThe effects of weak magnetic field (WMF) on degrading Orange II by zero-valent iron (ZVI) as functions of pHini, ZVI dosages, and Orange II concentrations were investigated. The pseudo-first-order rate constants of Orange II removal by ZVI decreased progressively from 0.0057 to 0.0006 min−1 without WMF and from 0.0419 to 0.0039 min−1 with WMF, respectively, as pHini increased from 3.3 to 5.5. The pseudo-first-order rate constants of Orange II sequestration by ZVI were increased by 2.6- to 21-folds due to the application of WMF under the reaction conditions investigated in this study. The WMF-induced improvement in Orange II removal by ZVI was attributed to the accelerated corrosion of ZVI in the presence of WMF. The application of WMF not only improved the decolorization efficiency, but also enhanced TOC removal dramatically. The influence of radical scavenger and oxygen on Orange II removal as well as the FTIR analysis revealed that Orange II was removed via reduction by ZVI as well as adsorption...

[1]  Shaobin Wang,et al.  Facile synthesis of magnetic ZnFe2O4–reduced graphene oxide hybrid and its photo-Fenton-like behavior under visible iradiation , 2014, Environmental Science and Pollution Research.

[2]  Zheng Jiang,et al.  Weak magnetic field significantly enhances selenite removal kinetics by zero valent iron. , 2014, Water research.

[3]  Shaobin Wang,et al.  Synthesis of Magnetic Cobalt Nanoparticles Anchored on Graphene Nanosheets and Catalytic Decomposition of Orange II , 2013 .

[4]  Hui Zhang,et al.  Degradation of Orange II by UV-Assisted Advanced Fenton Process: Response Surface Approach, Degradation Pathway, and Biodegradability , 2013 .

[5]  D. Shu,et al.  pH-dependent degradation of acid orange II by zero-valent iron in presence of oxygen , 2013 .

[6]  Cuicui Liu,et al.  Preparation of a semicovalent, molecularly surface imprinted polymer for the rapid determination of trace acid orange II in food and environmental samples , 2013, Analytical and Bioanalytical Chemistry.

[7]  Liang Peng,et al.  Synthesis of reactive nanoscale zero valent iron using rectorite supports and its application for Orange II removal , 2013 .

[8]  Haifeng Zhang,et al.  Rapid decolorization of acid orange II aqueous solution by amorphous zero-valent iron. , 2012, Journal of environmental sciences.

[9]  T. Scott,et al.  Nanoscale zero-valent iron: future prospects for an emerging water treatment technology. , 2012, Journal of hazardous materials.

[10]  L. Schultz,et al.  Effect of high gradient magnetic fields on the anodic behaviour and localized corrosion of iron in sulphuric acid solutions , 2011 .

[11]  W. Choi,et al.  Effect of magnetic field on the zero valent iron induced oxidation reaction. , 2011, Journal of hazardous materials.

[12]  Jun Ma,et al.  Performance and mechanism of simultaneous removal of chromium and arsenate by Fe(II) from contaminated groundwater , 2011 .

[13]  B. Moon,et al.  Fenton oxidation of Orange II by pre-reduction using nanoscale zero-valent iron , 2011 .

[14]  Jing Fan,et al.  Rapid decolorization of azo dye methyl orange in aqueous solution by nanoscale zerovalent iron particles. , 2009, Journal of hazardous materials.

[15]  N. Pourreza,et al.  Determination of Orange II in food samples after cloud point extraction using mixed micelles. , 2009, Journal of hazardous materials.

[16]  S. G. Kumar,et al.  Effect of various inorganic anions on the degradation of Congo Red, a di azo dye, by the photo-assisted Fenton process using zero-valent metallic iron as a catalyst , 2009 .

[17]  W. Cai,et al.  Experimental and mechanism research of SO(2) removal by cast iron scraps in a magnetically fixed bed. , 2008, Journal of hazardous materials.

[18]  K. Paknikar,et al.  Iron-nickel bimetallic nanoparticles for reductive degradation of azo dye Orange G in aqueous solution , 2008 .

[19]  Lizhong Zhu,et al.  Heterogeneous UV-Fenton catalytic degradation of dyestuff in water with hydroxyl-Fe pillared bentonite , 2007 .

[20]  M. Hou,et al.  The effect of substituent groups on the reductive degradation of azo dyes by zerovalent iron. , 2007, Journal of hazardous materials.

[21]  Gaosheng Zhang,et al.  CuFe2O4/activated carbon composite: a novel magnetic adsorbent for the removal of acid orange II and catalytic regeneration. , 2007, Chemosphere.

[22]  H. Shu,et al.  An integrated technique using zero-valent iron and UV/H2O2 sequential process for complete decolorization and mineralization of C.I. Acid Black 24 wastewater. , 2006, Journal of hazardous materials.

[23]  J. Mielczarski,et al.  Role of iron surface oxidation layers in decomposition of azo-dye water pollutants in weak acidic solutions , 2005 .

[24]  Hui Zhang,et al.  The use of ultrasound to enhance the decolorization of the C.I. Acid Orange 7 by zero-valent iron , 2005 .

[25]  M. Swaminathan,et al.  Photochemical oxidation of reactive azo dye with UV–H2O2 process , 2004 .

[26]  M. Stylidi.  Pathways of solar light-induced photocatalytic degradation of azo dyes in aqueous TiO2 suspensions , 2003 .

[27]  C. Huang,et al.  Zero‐Valent Iron Pretreatment for Enhancing the Biodegradability of Azo Dyes , 2002, Water environment research : a research publication of the Water Environment Federation.

[28]  J. Ferry,et al.  Investigation of the photocatalytic activity of TiO2--polyoxometalate systems. , 2001, Environmental science & technology.

[29]  B. Chaudhuri,et al.  Chemical oxidation of methylene blue using a Fenton-like reaction. , 2001, Journal of hazardous materials.

[30]  Xin Wu,et al.  Discoloration of aqueous reactive dye solutions in the UV/Fe0 system , 2000 .

[31]  Paul G Tratnyek,et al.  Reduction of azo dyes with zero-valent iron , 2000 .

[32]  Cao,et al.  Reducing degradation of azo dye by zero-valent iron in aqueous solution , 1999, Chemosphere.

[33]  Wei-xian Zhang,et al.  Synthesizing Nanoscale Iron Particles for Rapid and Complete Dechlorination of TCE and PCBs , 1997 .

[34]  Hung-Yee Shu,et al.  Degradation of commercial azo dyes in water using ozonation and UV enhanced ozonation process , 1995 .

[35]  Paul G Tratnyek,et al.  Reductive dehalogenation of chlorinated methanes by iron metal. , 1994, Environmental science & technology.

[36]  R. Bauer,et al.  UV-O3, UV-H2O2, UV-TiO2 and the photo-Fenton reaction - comparison of advanced oxidation processes for wastewater treatment , 1994 .