Degradation of 1, 4-dioxane by hydroxyl radicals produced from clay minerals

Zeng, Qiang; Dong, Hailiang; Xi, Wang; Tian, Yu; Cui, Weihua

doi:10.1016/j.jhazmat.2017.01.040

Cited by 111 publications

(85 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A similar oxidation of 1,4dioxane has been reported by previous authors. [86][87][88][89][90] Reliability and stability of the electrochemical method…”

Section: Optical and Phase Crystallinity Analysesmentioning

confidence: 99%

Potential application of mixed metal oxide nanoparticle-embedded glassy carbon electrode as a selective 1,4-dioxane chemical sensor probe by an electrochemical approach

2019

View full text Add to dashboard Cite

show abstract

“…A similar oxidation of 1,4dioxane has been reported by previous authors. [86][87][88][89][90] Reliability and stability of the electrochemical method…”

Section: Optical and Phase Crystallinity Analysesmentioning

confidence: 99%

Potential application of mixed metal oxide nanoparticle-embedded glassy carbon electrode as a selective 1,4-dioxane chemical sensor probe by an electrochemical approach

2019

View full text Add to dashboard Cite

show abstract

“…Under other circumstances, clay minerals appear as a more stable heterogeneous catalyst because Fe(II) or Fe(III) sites are coordinated within the layers, where iron atoms tend to remain after reduction and reoxidation favoring the heterogeneous mechanism and long-term use of catalyst [18,19]. Besides, clay minerals are natural, abundant and inexpensive and their capacity to act simultaneous as an adsorbent and a catalyst for degradation of contaminants has further motivated studies about their application in the removal of organic and inorganic contaminants in soil and water [16,20,21].…”

Section: Materials In Heterogeneous Electro-fenton Processmentioning

confidence: 99%

“…The montmorillonites SWy-1 and SWy-2 are reported under the same general chemical formula by the Clay Mineral Society [36] but different weight percentages of structural Fe(III) are reported in the literature. The SWy-1 showed 12.6 wt% of structural Fe (III) [44] while SWy-2 showed 2-2.3 wt% [19,41,45,46]. However, the structural Fe(III) is primarily located in cis-coordinating octahedral sites (M2) for both SWy-1 and SWy-2 [30,46].…”

Section: Iron Inmentioning

confidence: 99%

“…Nevertheless, Joe-Wong, Brown, and Maher emphasized that tetrahedral Fe(III) occurred in trace amounts within the structure of NAu-2 and argued that tetrahedral Fe(II) was not the main reductant of Cr(IV) ions sorbed in the edge of the layers under anoxic conditions [43]. At the same time, Zeng et al argued that a fraction of •OH radicals generated in the surface of NAu-2 were depleted by structural Fe(II) [19]. The authors investigated the electron transfer from structural Fe(II) within reduced nontronite NAu-2 to O 2 for generation of O 2 • − and then •OH radicals for degradation of 1,4-dioxane at near neutral pH and absence of light.…”

Section: Iron Inmentioning

confidence: 99%

“…The systematic analysis of the parameters influencing the oxidation of contaminants is essential to the development of novel remediation processes based on Fe(II)-bearing minerals. In this context, Zeng et al also developed a study involving nontronite NAu-2 but a cyclic ether compound as a model pollutant, 1,4-dioxane (Zeng et al, 2017). In this study, the authors focused on proposing an efficient protocol for in situ remediation of contaminated water associating Fe(II)-containing clay minerals under dark and neutral conditions.…”

Section: Omentioning

confidence: 99%

See 2 more Smart Citations

Review: Clay-Modified Electrodes in Heterogeneous Electro-Fenton Process for Degradation of Organic Compounds: The Potential of Structural Fe(III) as Catalytic Sites

et al. 2021

View full text Add to dashboard Cite

Advanced oxidation processes are considered as a promising technology for the removal of persistent organic pollutants from industrial wastewaters. In particular, the heterogeneous electro-Fenton (HEF) process has several advantages such as allowing the working pH to be circumneutral or alkaline, recovering and reusing the catalyst and avoiding the release of iron in the environment as a secondary pollutant. Among different iron-containing catalysts, studies using clay-modified electrodes in HEF process are the focus in this review. Fe(III)/Fe(II) within the lattice of clay minerals can possibly serve as catalytic sites in HEF process. The description of the preparation and application of clay-modified electrodes in the degradation of model pollutants in HEF process is detailed in the review. The absence of mediators responsible for transferring electrons to structural Fe(III) and regenerating catalytic Fe(II) was considered as a milestone in the field. A comprehensive review of studies investigating the use of electron transfer mediators as well as the mechanism behind electron transfer from and to the clay mineral structure was assembled in order to uncover other milestones to be addressed in this study area.

show abstract

Optimization of a gas–liquid plasma reactor for water treatment applications: Design guidelines and electrical circuit considerations

Nau‐Hix

Holsen

Thagard

2022

Plasma Processes & Polymers

View full text Add to dashboard Cite

To provide insights into the design, optimization, and scale up of plasma reactors for water treatment, the influences of discharge energy, grounded electrode size and position, and number of high voltage (HV) discharge points on the production of reactive species and the degradation of 1,4-dioxane and perfluorooctanoic acid in a gas-liquid electrical discharge plasma reactor were assessed. Discharge energy and plasma area largely control the treatment

show abstract

Degradation of 1, 4-dioxane by hydroxyl radicals produced from clay minerals

Cited by 111 publications

References 58 publications

Potential application of mixed metal oxide nanoparticle-embedded glassy carbon electrode as a selective 1,4-dioxane chemical sensor probe by an electrochemical approach

Potential application of mixed metal oxide nanoparticle-embedded glassy carbon electrode as a selective 1,4-dioxane chemical sensor probe by an electrochemical approach

Review: Clay-Modified Electrodes in Heterogeneous Electro-Fenton Process for Degradation of Organic Compounds: The Potential of Structural Fe(III) as Catalytic Sites

Optimization of a gas–liquid plasma reactor for water treatment applications: Design guidelines and electrical circuit considerations

Contact Info

Product

Resources

About