Adsorption and heterogeneous advanced oxidation of phenolic contaminants using Fe loaded mesoporous SBA-15 and H2O2

Shukla, Pradeep; Wang, Shaobin; Sun, Hongqi; Ang, Ha Ming; Tadé, Moses O.

doi:10.1016/j.cej.2010.08.061

Cited by 152 publications

(73 citation statements)

References 25 publications

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“…This might be due to the presence of metal inside the pores, which causes an increase in the scattering power within the pores, resulting in an overall loss of intensity due to phase cancellation between the pore walls and guest metal. 13,14,23,25 In high angle PXRD, the existence of major reflections corresponding to SBA-15, even after functionalization, shows that the mesoporous SBA-15 structure is retained (Figure 2) …”

Section: Resultsmentioning

confidence: 99%

“…[16][17][18][19] Fe 2 O 3 /SBA-15 nano composites, titania-deposited SBA-15, crystalline iron oxide supported on meso-structured SBA-15 materials, Fe/SBA-15 have been applied to waste water treatment processes. [20][21][22][23] The use of a solid catalyst offers the further advantages of easy recovery, regeneration and reuse, compared to a homogeneous catalyst.…”

Section: Introductionmentioning

confidence: 99%

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SBA-15 Supported Fe, Ni, Fe-Ni Bimetallic Catalysts for Wet Oxidation of Bisphenol-A

Mayani¹,

Mayani²,

Kim³

2014

Bulletin of the Korean Chemical Society

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Bisphenol A is considered as pollutant, because it is toxic and hazardous to living organisms even at very low concentrations. Biological oxidation used for removing this organic from waste water is not suitable and consequently application of catalytic wet oxidation has been considered as one of the best options for treating bisphenol A. We have developed Fe/SBA-15, Ni/SBA-15 and Fe-Ni/SBA-15 as heterogeneous catalysts using the advanced impregnation method for oxidation of bisphenol A in water. The catalysts were characterized with physico-chemical characterization methods such as, powder X-ray diffraction (PXRD), FT-IR measurements, N 2 adsorption-desorption isotherm, thermo-gravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and inductively coupled plasma optical emission spectroscopy (ICP-OES) analysis. This work illustrates activity of the catalysts for heterogeneous catalytic degradation reaction revealed with excellent conversion and recyclability. The degradation products identified were not persistent pollutants. GC-MS analysis identified the products: 2,4-hexadienedioic acid, 2,4-pentadienic acid and isopropanol or acetic acid. The leachability study indicated that the catalysts release very little metals to water. Therefore, the possibility of water contamination through metal leaching was almost negligible.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

SBA-15 Supported Fe, Ni, Fe-Ni Bimetallic Catalysts for Wet Oxidation of Bisphenol-A

Mayani¹,

Mayani²,

Kim³

2014

Bulletin of the Korean Chemical Society

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“…Zeolites [13][14][15][16][17], carbon materials [18,19], mesoporous and mixed oxides [20,21] and clays [12,[22][23][24][25][26] have been used as sup-ports of iron in the preparation of heterogeneous catalytic systems. In particular, zeolites containing transition metal ions have been shown to be promising solid-phase catalysts in the oxidation of a series of organic pollutants with hydrogen peroxide [27].…”

Section: Introductionmentioning

confidence: 99%

Azo-dye orange II degradation by the heterogeneous Fenton-like process using a zeolite Y-Fe catalyst—Kinetics with a model based on the Fermi's equation

Rache

García

Zea

et al. 2014

Applied Catalysis B: Environmental

188

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The degradation of Orange II dye (OII) by a heterogeneous Fenton-like process was studied using a catalyst with 5 wt.% of iron after ion-exchange in a Na-Y zeolite support. The catalyst was characterized by X-ray diffraction (XRD), N2 adsorption, atomic absorption spectroscopy and X-ray fluorescence (XRF). The effect of the initial concentrations of H2O2 and OII, pH and temperature on the degradation rate of OII was investigated by carrying out experiments in a batch reactor. The OII concentration histories (i.e., concentration evolution along reaction time) were described by a simple semi-empirical kinetic model, based on the Fermi's equation, which captures simultaneously the influence of all the reaction conditions with a few adjustable parameters. The adherence of the model to the data was remarkable, and the effect of the operating conditions on the obtained fitting parameters -apparent rate constant and transition timewas analyzed.2

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“…However, few investigations have been reported in using mesoporous materials for heterogeneous Fenton oxidation [3][4][5][6]. The purpose of this study is the assessment of Fe-containing SBA-15 mesostructured materials prepared by direct synthesis (by adjusting the pH at 6 and 3) and post synthesis procedures for the heterogeneous photo-Fenton degradation of phenolic aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Heterogeneous advanced photo-fenton oxidation of phenolic aqueous solutions over iron-containing SBA-15 catalyst

Bailiche

Chérif

Royer

et al. 2013

MATEC Web of Conferences

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Abstract. Iron-containing SBA15 catalysts have been prepared following different synthesisroutes, direct synthesis by adjusting pH at 3 and 6 and with post synthesis procedure. Activity and stability of these materials were assessed on the photo-Fenton degradation of phenolic aqueous solutions by H 2 O 2 using near UV irradiation (254 nm) at room temperature and initial neutral pH. Their catalytic performance was mentioned in terms of phenol and total organic carbon (TOC) conversions. Several complementary techniques, including XRD, Nitrogen sorption isotherms, UV visible, were used to evaluate the final structural and textural properties of calcined Fe-SBA15 materials. These materials show a high activity and stability of iron species.

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Adsorption and heterogeneous advanced oxidation of phenolic contaminants using Fe loaded mesoporous SBA-15 and H2O2

Cited by 152 publications

References 25 publications

SBA-15 Supported Fe, Ni, Fe-Ni Bimetallic Catalysts for Wet Oxidation of Bisphenol-A

SBA-15 Supported Fe, Ni, Fe-Ni Bimetallic Catalysts for Wet Oxidation of Bisphenol-A

Azo-dye orange II degradation by the heterogeneous Fenton-like process using a zeolite Y-Fe catalyst—Kinetics with a model based on the Fermi's equation

Heterogeneous advanced photo-fenton oxidation of phenolic aqueous solutions over iron-containing SBA-15 catalyst

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