Degradation of pCNB by Fenton like process using α-FeOOH

Li, Xueyan; Huang, Yong; Liu, Cong; Shen, Jimin; Deng, Yang

doi:10.1016/j.cej.2014.08.042

Cited by 113 publications

(19 citation statements)

References 33 publications

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“…This peak was then slightly shifted to 1175 cm -1 in FeAC after MB sorption. Two peaks found at 877.3 and 783.7 cm -1 in FeAC before MB sorption was slightly shifted to 874 cm -1 after MB adsorption can be ascribed by the metal–oxygen interactions i.e., α–FeOOH and Fe–OH, as described by Li et al [ 20 ] in a separate study. However, no such peak was found in the FTIR spectrum of AC.…”

Section: Resultssupporting

confidence: 52%

Iron Impregnated Activated Carbon as an Efficient Adsorbent for the Removal of Methylene Blue: Regeneration and Kinetics Studies

et al. 2015

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In this study, iron impregnated activated carbon (FeAC) was synthesized following an oxidation and iron impregnation of activated carbon (AC). Both the AC and FeAC were characterized by pHZPC and FTIR spectroscopy. The removal of Methylene Blue (MB) by AC and FeAC was examined under various experimental conditions. The FeAC showed up to 95% (higher than AC) MB removal in the pH range of 7–10. Although the reaction kinetics was pseudo–second order, the overall rate was controlled by a number of processes such as film diffusion, pore diffusion and intraparticle diffusion. The activation energy values for the MB uptake by AC and FeAC (21.79 and 14.82 kJ/mol, respectively) revealed a physisorption process. In the regeneration study, FeAC has shown consistently ≥ 90% MB removal even up to 10 repeated cycles. The reusable characteristic of the spent FeAC improved the practical use of activated carbon and can be a breakthrough for continuous flow system applications where it can work effectively without any significant reduction in its performance.

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Section: Resultssupporting

confidence: 52%

Iron Impregnated Activated Carbon as an Efficient Adsorbent for the Removal of Methylene Blue: Regeneration and Kinetics Studies

et al. 2015

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“…Moreover, to investigate the formation of possible active species (HO•, O 2 •and h + ) in the degradation process [63,64], trapping experiments using different scavengers were also investigated. As shown in Fig.…”

Section: Possible Mechanismmentioning

confidence: 99%

Fabrication of 3D Bi2O3-BiOI heterojunction by a simple dipping method: Highly enhanced visible-light photoelectrocatalytic activity

Cong

et al. 2017

Chemical Engineering Journal

121

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Three-dimentional (3D) Bi 2 O 3-BiOI heterojunction was fabricated on the basis of Bi 2 O 3 film by a simple dipping method at room temperature. The as-prepared film samples were characterized by scanning electron microscope (SEM), high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and UV-Vis DRS spectra. Results indicated that BiOI nanosheets with cross-flake arrays were formed via in situ etching and exchanging of Bi 2 O 3 layer by Iin KI aqueous solution, which grow around the residual Bi 2 O 3 particles to form 3D Bi 2 O 3-BiOI heterojunction. Liner sweep voltammetry (LSV), electrochemical impedance spectroscopy (EIS) Nyquist plots and incident monochromatic photon-to-current conversion efficiency (IPCE) indicated that easier generation, separation and transfer of photogenerated charges were achieved on the special 3D heterojunction. The photocurrent density of the 3D Bi 2 O 3-BiOI composite increased by 8.4 times relative to pure Bi 2 O 3 at 0.35 V vs. Ag/AgCl in 0.2 M Na 2 SO 4 aqueous solution under visible light irradiation. For the PEC degradation of phenol, the composite film also exhibited greatly enhanced activity. The calculated rate constant was 3.8 times that on pure Bi 2 O 3. Furthermore, good stability in long-time photocurrent and cyclic degradation of phenol can both be observed, indicating that the 3D Bi 2 O 3-BiOI film can be potentially applied in water oxidation and environmental remediation.

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“…The highest accumulation of H 2 O 2 is observed at pH 3 due to the recombination of OH° being faster than OH° attacked on IBP. These results confirmed the efficiency of the process for the elimination of pollutants over a wide pH range with much less iron loss than in the homogeneous Fenton process .…”

Section: Resultsmentioning

confidence: 99%

Enhanced performance of Fe‐JUL‐15 prepared by ultrasonic method through the photo‐degradation of ibuprofen

Guettaia

Boudjemaa

Bachari

et al. 2017

Env Prog and Sustain Energy

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The present study involves the degradation of ibuprofen (IBP) anti‐inflammatory drug used in the pharmaceutical sector by photo‐catalysis, photolysis and photo‐Fenton processes. IBP degradation through these processes was investigated under UV irradiation used a catalyst based on iron incorporated in mesoporous silica framework (JUL‐15). The catalyst was characterized by XRD, BET, FTIR, diffuse reflectance UV‐Vis, SEM/EDX, and electrical conductivity. The photo‐catalytic properties of this material were evaluated via IBP degradation by varying different parameters as the pH levels, the concentration of IBP and the catalyst amount. The IBP abatement was monitored by UV‐visible spectrophotometry and HPLC. The characterization results indicated that, the material has a small particles size and a specific surface area above 109 m2 g−1. The optical band gap (∼ 1.4 eV) obtained from Kubelka‐Munk equation was well suited in the UV region. A higher degradation was observed with an initial catalyst concentration of 0.25 g/L. Moreover, the catalyst demonstrates significant photo‐degradation after 210 min under UV light (lamp's wavelength of 254 nm). © 2017 American Institute of Chemical Engineers Environ Prog, 37: 738–745, 2018

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Degradation of pCNB by Fenton like process using α-FeOOH

Cited by 113 publications

References 33 publications

Iron Impregnated Activated Carbon as an Efficient Adsorbent for the Removal of Methylene Blue: Regeneration and Kinetics Studies

Iron Impregnated Activated Carbon as an Efficient Adsorbent for the Removal of Methylene Blue: Regeneration and Kinetics Studies

Fabrication of 3D Bi2O3-BiOI heterojunction by a simple dipping method: Highly enhanced visible-light photoelectrocatalytic activity

Enhanced performance of Fe‐JUL‐15 prepared by ultrasonic method through the photo‐degradation of ibuprofen

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