Fenton-Like Oxidation of Acid Yellow 23 in the Presence of Iron Rich Soil

Merlain, Tagne Guy; Nanganoa, Lawrence Tatanah; Desire, Belibi Belibi Placide; Nsami, Ndi Julius; Mbadcam, Ketcha Joseph

doi:10.4236/aces.2016.65048

Cited by 11 publications

(4 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similarly, MPC prepared from FeCl 3 /NF mass ratios of 0.05, 0.1, and 0.2 had the rate constants of 0.0138 min −1 (R 2 � 0.988), 0.0186 min −1 (R 2 � 0.993), and 0.0143 min −1 (R 2 � 0.977), respectively. Tese R 2 values from regression lines revealed that the decolorizations generally followed pseudo-frst-order kinetics, which is consistent with other earlier investigations using Febased catalysts for Fenton-like decolorization of AY23 [10,77,80].…”

Section: Kinetics Of Ay23 Decolorization With Mpc Catalystssupporting

confidence: 91%

“…After 120 min of treatment, the decolorization efciencies at pH 2.0, 3.0, 3.5, 4.0, and 10.0 were 94.5, 89.1, 37.8, 24.4, and 16.5%, respectively. Although pH 2.0 ofered rapid and complete AY23 decolorization within 30 min of H 2 O 2 addition, low pH could promote Fe leaching, leading to a homogeneous mechanism for catalytic decolorization [77]. As pH increases, the interaction between AY23 molecules and the MPC surface might decrease [73].…”

Section: Efect Of Initial Phmentioning

confidence: 99%

See 1 more Smart Citation

Simple One-Step Synthesis of Nipa Frond-Derived Magnetic Porous Carbon for Decolorization of Acid Yellow 23

Nguyen

et al. 2023

Journal of Chemistry

View full text Add to dashboard Cite

Nipa is an abundant, underutilized palm whose major part is its fronds. Nipa fronds (NF) were, therefore, valorized as a renewable carbon resource for the preparation of advanced magnetic porous carbon (MPC) via simple one-step pyrolysis with FeCl3 addition as a magnetic precursor. Properties of the obtained material were determined by X-ray diffraction (XRD), nitrogen adsorption and desorption isotherms, vibrating sample magnetometer (VSM), scanning electron microscopy (SEM) images, energy-dispersive X-ray (EDX) spectroscopy, and Fourier-transform infrared (FTIR) spectroscopy. XRD results showed that Fe3O4 along with Fe0 particles were formed in the porous carbon base. FeCl3-activation of NF yielded MPC with a high specific surface area (SBET) of 330 m2/g, a large total pore volume (Vtotal) of 0.26 cm3/g, and a strong specific saturation magnetization of 7.65 emu/g. Subsequently, MPC was explored for the removal of acid yellow 23 (AY23) using H2O2 as an oxidation agent. Before H2O2 addition, MPC (0.80 g/L) at pH 3.0 partly eliminated AY23 (initial 100 ppm) with an adsorption capacity of 14.5 mg/g. In further catalytic oxidation with 200 ppm of H2O2, MPC removed 89.1% of AY23 within 120 min. Moreover, AY23 decolorization with different MPC samples obeyed pseudo-first-order kinetics, with the greatest rate constant being 0.0186 min−1. Interestingly, the utilized MPC samples could be easily removed from the treated media using a magnet. Altogether, the findings suggest that low-cost magnetic porous carbon produced from one-step pyrolysis of FeCl3-loaded nipa frond might be applied to the treatment of acid yellow 23 in wastewater due to its relative adsorption capacity, efficient catalytic performance, and powerful magnetic separability.

show abstract

Section: Kinetics Of Ay23 Decolorization With Mpc Catalystssupporting

confidence: 91%

Section: Efect Of Initial Phmentioning

confidence: 99%

Simple One-Step Synthesis of Nipa Frond-Derived Magnetic Porous Carbon for Decolorization of Acid Yellow 23

Nguyen

et al. 2023

Journal of Chemistry

View full text Add to dashboard Cite

show abstract

“…The AO10 concentration almost remained constant at pH 5.0. In high pH conditions, Fe(OH) 3 can be formed from Fe(III) and cover the active sites of the catalyst, making H 2 O 2 adsorbed and reducing the amount of free •OH radicals formed [ 92 , 93 ]. Nonetheless, AO10 decolorization occurred rapidly at low pH.…”

Section: Resultsmentioning

confidence: 99%

“…These results were consistent with other Fenton-like research in the literature. Although pH 2.0 offered robust and complete AY23 decolorization within 30 min of H 2 O 2 addition, low pH could promote Fe leaching, leading to a homogeneous mechanism for catalytic decolorization [ 93 ]. Overall, pH 3.0 may be appropriate for achieving a heterogeneous mechanism and maintaining high decolorization efficiency.…”

Section: Resultsmentioning

confidence: 99%

Magnetic Activated Carbon from ZnCl2 and FeCl3 Coactivation of Lotus Seedpod: One-Pot Preparation, Characterization, and Catalytic Activity towards Robust Degradation of Acid Orange 10

Nguyen

Bui

et al. 2023

Bioinorganic Chemistry and Applications

View full text Add to dashboard Cite

Lotus seedpods (LSPs) are an abundant and underutilized agricultural residue discarded from lotus seed production. In this study, ZnCl2 and FeCl3 coactivation of LSP for one-pot preparation of magnetic activated carbon (MAC) was explored for the first time. X-ray diffraction (XRD) results showed that Fe3O4, Fe0, and ZnO crystals were formed in the LSP-derived carbon matrix. Notably, transmission electron microscopy (TEM) images showed that the shapes of these components consisted of not only nanoparticles but also nanowires. Fe and Zn contents in MAC determined by atomic absorption spectroscopy (AAS) were 6.89 and 3.94 wt%, respectively. Moreover, SBET and Vtotal of MAC prepared by coactivation with ZnCl2 and FeCl3 were 1080 m2/g and 0.51 cm3/g, which were much higher than those prepared by single activation with FeCl3 (274 m2/g and 0.14 cm3/g) or ZnCl2 (369 m2/g and 0.21 cm3/g). MAC was subsequently applied as an oxidation catalyst for Fenton-like degradation of acid orange 10 (AO10). As a result, 0.20 g/L MAC could partially remove AO10 (100 ppm) with an adsorption capacity of 78.4 mg/g at pH 3.0. When 350 ppm H2O2 was further added, AO10 was decolorized rapidly, nearly complete within 30 min, and 66% of the COD was removed in 120 min. The potent catalytic performance of MAC might come from the synergistic effect of Fe0 and Fe3O4 nanocrystals in the porous carbon support. MAC also demonstrated effective stability and reusability after five consecutive cycles, when total AO10 removal at 20 min of H2O2 addition slightly decreased from 93.9 ± 0.9% to 86.3 ± 0.8% and minimal iron leaching of 1.14 to 1.19 mg/L was detected. Interestingly, the MAC catalyst with a saturation magnetization of 3.6 emu/g was easily separated from the treated mixture for the next cycle. Overall, these findings demonstrate that magnetic activated carbon prepared from ZnCl2 and FeCl3 coactivation of lotus seedpod waste can be a low-cost catalyst for rapid degradation of acid orange 10.

show abstract

Bio-inspired green synthesis of reclaimable ZnO nanoclusters using Parkia speciosa Hassk pods and its potential photocatalytic removal of water-borne pollutant and antioxidant activities

Begum¹,

Ahmaruzzaman²

2021

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Fenton-Like Oxidation of Acid Yellow 23 in the Presence of Iron Rich Soil

Cited by 11 publications

References 37 publications

Simple One-Step Synthesis of Nipa Frond-Derived Magnetic Porous Carbon for Decolorization of Acid Yellow 23

Simple One-Step Synthesis of Nipa Frond-Derived Magnetic Porous Carbon for Decolorization of Acid Yellow 23

Magnetic Activated Carbon from ZnCl2 and FeCl3 Coactivation of Lotus Seedpod: One-Pot Preparation, Characterization, and Catalytic Activity towards Robust Degradation of Acid Orange 10

Bio-inspired green synthesis of reclaimable ZnO nanoclusters using Parkia speciosa Hassk pods and its potential photocatalytic removal of water-borne pollutant and antioxidant activities

Contact Info

Product

Resources

About