A heterogeneous Fenton-like system with nanoparticulate zero-valent iron for removal of 4-chloro-3-methyl phenol

Xu, Lejin; Wang, Jianlong

doi:10.1016/j.jhazmat.2010.10.116

Cited by 532 publications

(183 citation statements)

References 47 publications

(90 reference statements)

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“…As shown in the Figure Ia ,which was consistent with the results obtained in previous experiment [9]. The peak at 2θ= 25° are typically peak of C 002 which confirmed the presence of GAC in the composite.…”

Section: A Structure Of Nzvi/gac Compositesupporting

confidence: 91%

Efficient Removal of Methylene Blue by Fenton-like Reaction using nZVI/GAC Composite as Catalyst

Hu¹,

Wu²,

Yao³

et al. 2015

Proceedings of the 2nd International Conference on Green Materials and Environmental Engineering

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Abstract-A composite of nano-zerovalent iron (nZVI) supported on granular activated carbon (GAC) was synthesizedthrough adsorption-reduction method, and its performances used as catalyst of Fenton-like were investigated to degrade methylene blue (MB) in model wastewater.Theresults show thathomogeneous dispersion of nZVI was greatly improved after supported on GAC. In comparison, the composite (nZVI/GAC) has higher removal efficiency of MB than the same amount of nZVI or GAC. Moreover, the pH values increased and leaching iron was reduced after reaction which were help to further processing with lowcost. The useof nZVI/GAC composite provided a selective and viable solution for removing MB from water by Fenton-like reaction.

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Section: A Structure Of Nzvi/gac Compositesupporting

confidence: 91%

Efficient Removal of Methylene Blue by Fenton-like Reaction using nZVI/GAC Composite as Catalyst

Hu¹,

Wu²,

Yao³

et al. 2015

Proceedings of the 2nd International Conference on Green Materials and Environmental Engineering

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“…Hence, they are used as UOH scavengers to inhibit UOH-dominated degradation, and serve as important indicators of UOH (Gonzalez-Olmos et al, 2011;Xu and Wang, 2012a;Zelmanov and Semiat, 2008). I − acts as efficient scavenger of surface-bound UOH (Xu and Wang, 2011). The scavenging of UOH by Cl − is significant only at low pH (Grebel et al, 2010) (e.g., pH < 2 (Machulek et al, 2006)), while carbonate scavenging of UOH increases with pH (Grebel et al, 2010).…”

Section: ·Ohmentioning

confidence: 99%

“…Over 200 mg/L iron ions leached from iron powder through surface corrosion (Eqs. (7)- (9) (Chu et al, 2012;Joo et al, 2005;Xu and Wang, 2011)) during the oxidation of 4-chlorophenol (4-CP) at initial pH 5. Iron leaching increased as pH decreased, accelerating both H 2 O 2 activation and 4-CP degradation.…”

Section: Homogeneous Fenton Mechanism Induced By Surfaceleached Ironmentioning

confidence: 99%

“…Though ZVI is commonly used as a reductant (E H 0 (Fe 2+ / Fe 0 ) = − 0.447 V (Vanýsek, 2011)) in permeable reactive barriers, it has been proved to be a highly efficient heterogeneous Fenton catalyst (Lücking et al, 1998;Tang and Chen, 1996;Xu and Wang, 2011;Zhou et al, 2008). Specifically, nanoparticulate ZVI (nZVI) possesses high surface reactivity and has easy access to contaminated zones, even though aggregation may occur.…”

Section: Zero-valent Iron (Zvi or Fe 0 )mentioning

confidence: 99%

“…Specifically, nanoparticulate ZVI (nZVI) possesses high surface reactivity and has easy access to contaminated zones, even though aggregation may occur. A heterogeneous Fenton system consisting of 0.5 g/L nZVI and 0.003 mol/L H 2 O 2 could completely remove 100 mg/L of the biocide 4-chloro-3-methyl phenol (CMP) within 15 min and 63% of the corresponding total organic carbon (TOC) in 1 hr at pH 6 (Xu and Wang, 2011).…”

Section: Zero-valent Iron (Zvi or Fe 0 )mentioning

confidence: 99%

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Interfacial mechanisms of heterogeneous Fenton reactions catalyzed by iron-based materials: A review

Yang

Men

et al. 2016

Journal of Environmental Sciences

469

153

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The heterogeneous Fenton reaction can generate highly reactive hydroxyl radicals (UOH) from reactions between recyclable solid catalysts and H 2 O 2 at acidic or even circumneutral pH. Hence, it can effectively oxidize refractory organics in water or soils and has become a promising environmentally friendly treatment technology. Due to the complex reaction system, the mechanism behind heterogeneous Fenton reactions remains unresolved but fascinating, and is crucial for understanding Fenton chemistry and the development and

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Nanocatalytic Wastewater Treatment System for the Removal of Toxic Organic Compounds

Sadjadi

2014

Nanomaterials for Environmental Protection

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A heterogeneous Fenton-like system with nanoparticulate zero-valent iron for removal of 4-chloro-3-methyl phenol

Cited by 532 publications

References 47 publications

Efficient Removal of Methylene Blue by Fenton-like Reaction using nZVI/GAC Composite as Catalyst

Efficient Removal of Methylene Blue by Fenton-like Reaction using nZVI/GAC Composite as Catalyst

Interfacial mechanisms of heterogeneous Fenton reactions catalyzed by iron-based materials: A review

Nanocatalytic Wastewater Treatment System for the Removal of Toxic Organic Compounds

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