Ferrous–tetrapolyphosphate complex induced dioxygen activation for toxic organic pollutants degradation

Wang, Li; Wang, Rui; Li, Pengna; Zhang, Lizhi

doi:10.1016/j.seppur.2013.10.002

Cited by 61 publications

(32 citation statements)

References 39 publications

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“…The addition of TPP accelerated the degradation of organic target compounds such as atrazine and pentachlorophenol [39,40] as well as significantly increasing the oxidant yields for both the nZVI/O2 and the Fe(II)/O2 systems (unpublished Results) ( Table 1). The primary role of TPP is the formation of soluble complexes by iron-chelation that prevents the precipitation of iron at neutral pH.…”

Section: Modified Systems For Enhancing Oxidant Productionmentioning

confidence: 97%

“…Recently, tetrapolyphosphate (TPP) has been suggested as a stable inorganic ligand resistant to oxidation [39,40]. The addition of TPP accelerated the degradation of organic target compounds such as atrazine and pentachlorophenol [39,40] as well as significantly increasing the oxidant yields for both the nZVI/O2 and the Fe(II)/O2 systems (unpublished Results) ( Table 1).…”

Section: Modified Systems For Enhancing Oxidant Productionmentioning

confidence: 98%

“…Several investigators have demonstrated the degradation of organic contaminants such as phenolic compounds, herbicides, pharmaceuticals and diagnostic agents, and dyes by the ZVI/O2 and the Fe(II)/O2 systems with or without additives [13,39,40,[45][46][47][48][49][50]. Table 2 summarizes those literature results reported in terms of the type of iron, the target compound, initial concentrations, conditions, and degradation efficiency.…”

Section: Application To Removal Of Water Contaminantsmentioning

confidence: 99%

“…The use of additives such as EDTA, TPP, POM, and NOM (iron-chelating agents or electron shuttles) greatly enhanced the degradation rate of organic contaminants [13,[39][40][41]46]. In particular, the addition of iron-chelating agents enables the ZVI/O2 system to work at neutral pH.…”

Section: Application To Removal Of Water Contaminantsmentioning

confidence: 99%

“…However, because of the low oxidant yields, no studies have demonstrated the significant degradation of organic contaminants by the Fe(II)/O2 system without any additives. However, the addition of TPP as an iron-chelating agent greatly enhances the degradation rate of organic contaminants by the Fe(II)/O2 system [39].…”

Section: Application To Removal Of Water Contaminantsmentioning

confidence: 99%

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Oxidation of organic contaminants in water by iron-induced oxygen activation: A short review

Lee

2015

Environmental Engineering Research

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Reduced forms of iron, such as zero-valent ion (ZVI) and ferrous ion (Fe[II]), can activate dissolved oxygen in water into reactive oxidants capable of oxidative water treatment. The corrosion of ZVI (or the oxidation of (Fe [II]) forms a hydrogen peroxide (H2O2) intermediate and the subsequent Fenton reaction generates reactive oxidants such as hydroxyl radical (• OH) and ferryl ion (Fe[IV]). However, the production of reactive oxidants is limited by multiple factors that restrict the electron transfer from iron to oxygen or that lead the reaction of H2O2 to undesired pathways. Several efforts have been made to enhance the production of reactive oxidants by iron-induced oxygen activation, such as the use of iron-chelating agents, electron-shuttles, and surface modification on ZVI. This article reviews the chemistry of oxygen activation by ZVI and Fe(II) and its application in oxidative degradation of organic contaminants. Also discussed are the issues which require further investigation to better understand the chemistry and develop practical environmental technologies.

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Section: Modified Systems For Enhancing Oxidant Productionmentioning

confidence: 97%

Section: Modified Systems For Enhancing Oxidant Productionmentioning

confidence: 98%

Section: Application To Removal Of Water Contaminantsmentioning

confidence: 99%

Section: Application To Removal Of Water Contaminantsmentioning

confidence: 99%

Section: Application To Removal Of Water Contaminantsmentioning

confidence: 99%

See 3 more Smart Citations

Oxidation of organic contaminants in water by iron-induced oxygen activation: A short review

Lee

2015

Environmental Engineering Research

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Near‐neutral Electro‐Fenton Treatment of Pharmaceutical Pollutants: Effect of Using a Triphosphate Ligand and BDD Electrode

et al. 2019

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In this work, a mixture of pharmaceutical pollutants was successfully treated by electro-Fenton (EF) at near-neutral pH using the inorganic ligand triphosphate (TPP). The effect of the ligand and the reactivity of its Fe complexes were thoroughly investigated under different conditions of TPP : Fe 2 + ratio, Fe 2 + and TPP concentrations, current density, and nature of the anode material (Ti/IrO 2 À RuO 2 and boron doped diamond, BDD). The mineralization of organics was mainly controlled by the EF reaction promoted by the continuous electrochemical formation of H 2 O 2 and regeneration of Fe 2 + (as Fe 2 + -TPP), while the main role of the ligand was to keep active Fe 2 + ions dissolved in solution to catalyze the Fenton's reaction at near-neutral pH. The results contrasted with previous works that reported the ability of Fe-TPP to enhance the oxidation performance of Fenton-like systems. Moreover, the remarkable oxidative properties of diamond electrodes enhanced the mineralization efficiency and TPP was not detrimental to oxidation with BDD. Finally, the degradation kinetics of all the compounds under investigation were determined, and a pathway for the antidepressant amitriptyline (ATTL) was proposed.* OH oxidation and thus, diminishing [a] Dr.

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New Strategies for Nitrogen Fixation and Pollution Control

et al. 2021

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In the context of sustainable development and carbon neutrality, great efforts have been dedicated to the utilization of green energy such as sunlight and renewable electricity to tackle problems encountered amid energy‐ and emission‐intensive industries like nitrogen fixation. Despite significant progress made in the photocatalytic and electrocatalytic nitrogen fixation, they are still limited by the insufficient activity due to poor N2 activation. Herein, we reviewed our work focusing on the rational design of active sites for the efficient photocatalytic and electrocatalytic activation of molecular N2, including oxygen vacancy of BiOX, plasmonic Ru and Fe on TiO2–xHy, interfacial polarization field of single‐atom Fe and strained core‐shell Ru nanoparticles. Besides, this review also covers our endeavor to deal with environmental pollution based on the iron redox chemistry, including the O2 activation by low‐valent iron species, the acceleration of iron redox cycle to improve Fenton‐like reactivity, and the development of novel zero‐valent iron. What is the most favorite and original chemistry developed in your research group? Environmental chemistry of iron, including Fenton reaction, zero‐valent iron, other iron bearing materials and iron‐based pollutant control methods. How do you get into this specific field? Could you please share some experiences with our readers? I entered the specific field of Environmental chemistry of iron when I started my research career in College of Chemistry, Central China Normal University. Environmental chemistry of iron is a frontier in environmental chemistry and geochemistry. Iron ranks the 4th most abundant element in the Earth's Crust and is ubiquitous in atmospheric aerosols, natural waters and soils as well as animals and plants. Iron could play an important role in the processes of the biogeochemical cycling in the environment and chemical dynamics in organisms because of its abundant existence and redox properties. Iron cycling and its coupling interactions can directly drive the geochemical cycling of some major and trace elements, such as carbon, nitrogen and sulfur, and have strong influence on the fate, transport, transformation and bioavailability of natural contaminants. How do you supervise your students? I always encourage my students to innovate, persist and enjoy their researches. What is the most important personality for scientific research? The most important personality for scientific research is strong interest. What's your hobby? What's your favorite book(s)? My hobby is badminton. My favorite book is World of Plainness. How do you keep balance between research and family? Family is the warm harbor to strongly support my research and sooth pain and anxiety from life. I will stay with family and share my research progress with my family. Who influences you mostly in your life? Professor Jincai Zhao influences me mostly in my life. He guides and supports my research all the time as a godfather. What is your favorite journal(s)? Journal of the Am...

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Ferrous–tetrapolyphosphate complex induced dioxygen activation for toxic organic pollutants degradation

Cited by 61 publications

References 39 publications

Oxidation of organic contaminants in water by iron-induced oxygen activation: A short review

Oxidation of organic contaminants in water by iron-induced oxygen activation: A short review

Near‐neutral Electro‐Fenton Treatment of Pharmaceutical Pollutants: Effect of Using a Triphosphate Ligand and BDD Electrode

New Strategies for Nitrogen Fixation and Pollution Control

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