Catalytic degradation of Orange II in aqueous solution using diatomite-supported bimetallic Fe/Ni nanoparticles

A functional diatomite-supported Fe/Ni nanocomposite successfully remediated Orange II contaminant in aqueous solution. The hypothesis was that diatomite-supported Fe/Ni would not only be more effective than Fe/Ni but also require less metallic loading to effect the catalytic reaction. Batch experiments indicate that 99.00% of Orange II was removed using diatomite-supported Fe/Ni, while only 86.64 and 3.59% of Orange II were removed using bimetallic Fe/Ni nanoparticles and diatomite, after 6 h of reaction, respectively. Characterisation by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM) and scanning electron microscopy (SEM) indicates that the use of diatomite as a support material reduced the aggregation of bimetallic Fe/Ni nanoparticles, thereby resulting in an enhancement in the reactivity. A synergistic mechanism for the removal of Orange II by diatomite-supported Fe/Ni was proposed which involves adsorption, followed by catalytic reduction. This study has demonstrated that diatomite may be a suitable support material for stabilizing and dispersing bimetallic Fe/Ni nanoparticles and the resulting diatomite-supported Fe/Ni composite could be a promising catalyst for the remediation of dye-contaminated wastewater.

[1]  Zhen Wang,et al.  Bentonite-supported nanoscale zero-valent iron granulated electrodes for industrial wastewater remediation , 2017 .

[2]  Zhaoqing Lu,et al.  High saturation magnetization superparamagnetic Fe/Ni core/shell microparticles for chromium removal , 2017 .

[3]  G. Ayoko,et al.  Clay-supported nanoscale zero-valent iron composite materials for the remediation of contaminated aqueous solutions: A review , 2017 .

[4]  Hui Zhang,et al.  Activated carbon adsorptive removal of azo dye and peroxydisulfate regeneration: from a batch study to continuous column operation , 2017, Environmental Science and Pollution Research.

[5]  Kyu-Hong Ahn,et al.  Fabrication of granular activated carbons derived from spent coffee grounds by entrapment in calcium alginate beads for adsorption of acid orange 7 and methylene blue. , 2016, Bioresource technology.

[6]  G. Ayoko,et al.  In situ sequentially generation of acid and ferrous ions for environmental remediation , 2016 .

[7]  I. Mackinnon,et al.  Bisphenol A degradation by a new acidic nano zero-valent iron diatomite composite , 2016 .

[8]  J. Font,et al.  Natural diatomites: Efficient green catalyst for Fenton-like oxidation of Orange II , 2016 .

[9]  Hanzhong Jia,et al.  Dechlorination of chlorinated phenols by subnanoscale Pd 0 /Fe 0 intercalated in smectite: pathway, reactivity, and selectivity. , 2015, Journal of hazardous materials.

[10]  R. Naidu,et al.  The mechanism for degrading Orange II based on adsorption and reduction by ion-based nanoparticles synthesized by grape leaf extract. , 2015, Journal of hazardous materials.

[11]  Hui Li,et al.  Degradation of selected polychlorinated biphenyls by montmorillonite clay-templated Fe0/Ni0 bimetallic system , 2015 .

[12]  Wenbin Yu,et al.  Surface silylation of natural mesoporous/macroporous diatomite for adsorption of benzene. , 2015, Journal of colloid and interface science.

[13]  R. Naidu,et al.  Degradation of microcystin-LR using functional clay supported bimetallic Fe/Pd nanoparticles based on adsorption and reduction , 2014 .

[14]  R. Naidu,et al.  Functional kaolinite supported Fe/Ni nanoparticles for simultaneous catalytic remediation of mixed contaminants (lead and nitrate) from wastewater. , 2014, Journal of colloid and interface science.

[15]  Jing Cheng,et al.  One-step synthesis of bentonite-supported nanoscale Fe/Ni bimetals for rapid degradation of methyl orange in water , 2014, Environmental Chemistry Letters.

[16]  R. Naidu,et al.  Enhancement of catalytic degradation of amoxicillin in aqueous solution using clay supported bimetallic Fe/Ni nanoparticles. , 2014, Chemosphere.

[17]  Chen-yan Hu,et al.  Synergistic catalysis of Co3O4 and graphene oxide on Co3O4/GO catalysts for degradation of Orange II in water by advanced oxidation technology based on sulfate radicals , 2014 .

[18]  G. Ayoko,et al.  Bisphenol A degradation enhanced by air bubbles via advanced oxidation using in situ generated ferrous ions from nano zero-valent iron/palygorskite composite materials , 2014 .

[19]  Fenglian Fu,et al.  The use of zero-valent iron for groundwater remediation and wastewater treatment: a review. , 2014, Journal of hazardous materials.

[20]  R. Naidu,et al.  Clay supported bimetallic Fe/Ni nanoparticles used for reductive degradation of amoxicillin in aqueous solution: Characterization and kinetics , 2014 .

[21]  Huaqiao Zhang,et al.  Electro-Fenton removal of Orange II in a divided cell: Reaction mechanism, degradation pathway and toxicity evolution , 2014 .

[22]  G. Ayoko,et al.  Degradation of simazine from aqueous solutions by diatomite-supported nanosized zero-valent iron composite materials. , 2013, Journal of hazardous materials.

[23]  R. Naidu,et al.  A combination of bentonite-supported bimetallic Fe/Pd nanoparticles and biodegradation for the remediation of p-chlorophenol in wastewater , 2013 .

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

[25]  P. Nidheesh,et al.  Trends in electro-Fenton process for water and wastewater treatment: An overview , 2012 .

[26]  R. Naidu,et al.  Dechlorination of p-chlorophenol from aqueous solution using bentonite supported Fe/Pd nanoparticles: Synthesis, characterization and kinetics , 2011 .

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

[28]  X. Qiu,et al.  Debromination of polybrominated diphenyl ethers by Ni/Fe bimetallic nanoparticles: influencing factors, kinetics, and mechanism. , 2011, Journal of hazardous materials.

[29]  C. Costa,et al.  Modelling of the synthetic dye Orange II degradation using Fenton's reagent : From batch to continuous reactor operation , 2009 .

[30]  L. Madeira,et al.  Fenton-like degradation of azo-dye Orange II catalyzed by transition metals on carbon aerogels , 2009 .

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

[32]  F. Omil,et al.  Anaerobic treatment of azo dye Acid Orange 7 under batch conditions. , 2005 .