Horseradish peroxidase immobilized on aluminum-pillared interlayered clay for the catalytic oxidation of phenolic wastewater

Cheng, Jianhua; Yu, Shao-Ming; Zuo, Pengjian

doi:10.1016/j.watres.2005.11.017

Cited by 174 publications

(108 citation statements)

References 25 publications

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“…HRP-based materials HRP immobilized on aluminum-pillared interlayered clay (Al-PILC) (Cheng et al, 2006) 2,4-DCP suggested a heterogeneous reaction-induced homogeneous mechanism (detailed in Section 2.3) (Xu and Wang, 2012a). Meanwhile, the activity of Fe 3 O 4 MNPs decreased gradually during consecutive runs, probably due to the leached iron and other factors, like the poisoning of the active catalytic sites by adsorbed organic species or oxidation of the surface (He et al, 2014) etc.…”

Section: +mentioning

confidence: 99%

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

Yang

Men

et al. 2016

Journal of Environmental Sciences

420

150

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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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Section: +mentioning

confidence: 99%

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

Yang

Men

et al. 2016

Journal of Environmental Sciences

420

150

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“…We found that after 4 cycles of phenol degradation, the efficiency of HRP get reduced to 60%. However, this can be improved by quick washing of HRP-immobilized disc with MilliQ or respective buffer in order to remove the deposited phenolic precipitate and other contaminant which may interfere in enzyme-substrate interactions [12].…”

Section: Reusability and Storage Stability Of Immobilized Hrpmentioning

confidence: 99%

“…Still, many of these methods have disadvantages like low efficiency, high cost, partial removal and formation of hazardous by-products [11][12][13]. Hence, the need to develop an efficient, simple and scalable method for removal of phenolic contaminants from wastewater still persist.…”

mentioning

confidence: 99%

A Simple and Efficient Method for Removal of Phenolic Contaminants in Wastewater Using Covalent Immobilized Horseradish Peroxidase

Ahirwar¹,

Sharma²,

Singh³

et al. 2017

JMSE-B

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Abstract:In the light of the increasing burden of pollutants in major rivers and stringent environmental legislation, adaptation to eco-friendly treatment approaches is desperately required to decontaminate industrial effluents before its discharge to rivers and other fresh water-bodies. In present study, we have designed a simple and efficient method for removal of phenols from effluent wastewater using an immobilized preparation of HRP (horseradish peroxidase). The enzyme was isolated in bulk amount from the roots of the Armoracia rusticana and covalently immobilized to polycarbonate supports using a photolabile linker FNAB (1-fluoro-2-notro-4-azidobenzene). The immobilized enzyme showed enhanced storage stability and reusability. The immobilized HRP was subsequently used for degradation of phenols in sewage and spiked wastewater. The phenol content of spiked wastewater was reduced to 93% in the 3 L reactor following treatment with immobilized HRP and H 2 O 2 . The improvement in the quality of water upon treatment was reflected by the changes in pH, conductivity, TDS (total dissolved salts) and biodegradation of organic contents as indicated by 77% and 87% reduction in COD (chemical oxygen demand) and BOD (biochemical oxygen demand) respectively in the analyzed sample.

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“…The phenolic pollutants in natural water can be degraded easier and faster by exposing to the natural light. In addition, vitamin B 2 itself is also easy to be decomposed by photooxidation under the intense light [1]. So the experiment principle is to synthesize the specific groups of riboflavin, to see if synthetic riboflavin derivatives could play a similar or better role in this photocatalytic reaction for the degradation of phenols in wastewater.…”

Section: Types Of Flavin-based Photosensitizers and Phenolsmentioning

confidence: 99%

Photochemical Degradation of Phenols in Water Using Flavin-Based Photosensitizers

Wang¹

2017

JGRE

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Both flavin derivatives were successfully synthesized and characterized by NMR (nuclear magnetic resonance) and mass spectrometry. A slightly modified method for 10-ethyl flavin was developed. Both HPLC (high performance liquid chromatography) and GC-MS data suggested that all phenols were degraded in the presence of either flavin at micromolar concentrations under direct sun light. A rapid breakdown of the phenols with 35-80% degradation over the course of 2 h was observed. The degradation efficiency was clearly dependent on the phenol type. The rank order for the degradation efficiency over 2 h was 4-chlorophenol and 4-methoxyphenol (~80%) > phenoxyacetic acids (60-65%) > nitrophenol and phenol (~35%).

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Horseradish peroxidase immobilized on aluminum-pillared interlayered clay for the catalytic oxidation of phenolic wastewater

Cited by 174 publications

References 25 publications

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

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

A Simple and Efficient Method for Removal of Phenolic Contaminants in Wastewater Using Covalent Immobilized Horseradish Peroxidase

Photochemical Degradation of Phenols in Water Using Flavin-Based Photosensitizers

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