Influence of dimethylphenol isomers on electrochemical degradation: Kinetics, intermediates, and DFT calculation

Zhou, Xule; Zhou, Qingqing; Chen, Haihua; Wang, Jiade; Liu, Zifeng; Zheng, Ruihao

doi:10.1016/j.scitotenv.2021.148284

Cited by 10 publications

(3 citation statements)

References 43 publications

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“…In pathway 3, the benzene ring of o‐dimethylbenzene formed via ring‐opening reaction was attacked to produce dimethylphenol, which was further oxidized to form 2,3‐dimethylbenzoquinone. [ 41 ] The intermediates of fluoranthene degradation through the above three degradation pathways were further oxidized to H 2 O and CO 2 .…”

Section: Resultsmentioning

confidence: 99%

Bioinspired Self‐Propelled Micromotors with Improved Transport Efficiency in the Subsurface Environment for Soil Decontamination

Wang,

Ma,

Cui

et al. 2023

Adv Funct Materials

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Limited transport efficiency of remediation reagents in the subsurface environment is regarded as a key challenge facing in situ soil remediation. Herein, taking advantage of natural hollow fibers, tubular micromotors capable of autonomous movement to facilitate the migration of remediation reagents and achieve efficient degradation of organic pollutants in soil are developed. Widely‐used nanocatalysts in soil treatment, Fe3O4 and MnO2, are integrated on the fiber surface to enable self‐propulsion via recoil of micro/nanobubbles and activation of hydrogen peroxide (H2O2) and peroxymonosulfate. Featured with tiny sizes and wireless motion, the micromotors navigate in microchannels and microenvironments with complex terrain. The dependence of transport efficiency in heterogeneous and porous environments on H2O2 concentration is revealed based on column studies. With fluorescent g‐C3N4 decorated on the surface to enable visualization, the horizontal/vertical migration of prepared micromotors in soil is proved to be greatly enhanced due to self‐propulsion and bubble generation. The micromotors exhibit excellent catalytic performances toward the degradation of a wide spectrum of water‐soluble antibiotics and water‐insoluble polycyclic aromatic hydrocarbons. Overall, the bioinspired micromotors unveil a new strategy to improve the transport of remediation reagents in the subsurface environment, which holds great potential for efficient in situ soil treatment.

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Section: Resultsmentioning

confidence: 99%

Bioinspired Self‐Propelled Micromotors with Improved Transport Efficiency in the Subsurface Environment for Soil Decontamination

Wang,

Ma,

Cui

et al. 2023

Adv Funct Materials

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“…Dimethylphenols (DMPs) include a variety of substances, such as 2,4-dimethylphenol and 2,6-dimethylphenol (2,6-DMP). 1 They can be extracted or produced from many industrial products. 2 2,6-DMP is used in the synthesis of polyphenylene oxide, which is extensively employed in commercial manufacturing, and is an important intermediate in the synthesis of drug mexiletine as well.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Dimethylphenols (DMPs) include a variety of substances, such as 2,4-dimethylphenol and 2,6-dimethylphenol (2,6-DMP) . They can be extracted or produced from many industrial products .…”

Section: Introductionmentioning

confidence: 99%

In Vitro and In Vivo Metabolic Activation and Hepatotoxicity of Environmental Pollutant 2,6-Dimethylphenol

Zhang

et al. 2022

Chem. Res. Toxicol.

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2,6-Dimethylphenol (2,6-DMP) is an environmental pollutant found in industrial wastewater. Exposure to 2,6-DMP is of increasing concern as it endangered reportedly some aquatic animals. In this study, we investigated the metabolic activation and hepatotoxicity of 2,6-DMP. 2,6-DMP was metabolized to an o-quinone methide intermediate in vitro and in vivo. The electrophilic metabolite was reactive to the sulfhydryl groups of glutathione, N-acetyl cysteine, and cysteine. NADPH was required for the formation of the reactive metabolite. The quinone methide intermediate reacted with cysteine residues to form hepatic protein adduction. A single dose of 2,6-DMP induced marked elevation of serum ALT and AST in mice. Both the protein adduction and hepatotoxicity of 2,6-DMP showed dose dependency.

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High Selectivity toward Electrochemical Ozone Production of Sb‐SnO₂ with Cu and Ni Co‐doped

Jin,

Cheng,

Sun

et al. 2024

Adv Funct Materials

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Ni‐Sb‐SnO2(Ni‐ATO) can generate ozone electrochemically which compensates the energy efficiency. However, the selectivity of electrochemical ozone production (EOP) on Ni‐ATO surface is yet insufficient for practical application. In this study, ATO with Cu and Ni co‐doped (CuNi‐ATO) is prepared to enhance the electrochemical performance and stability of ozone generation. CuNi‐ATO achieves the highest known current efficiency of 71% for EOP under acidic conditions, which is 2.4 times higher than that of Ni‐ATO. Efficient EOP is maintained with diverse pH, temperature, and electrolytes. Notably, the service lifetime of CuNi‐ATO is 2.7 times longer than that of Ni‐ATO. DFT calculations further reveal that ATO with Cu and Ni co‐doped presents weakened adsorption toward O*, O2*, and O3*. The spontaneous combination of O* and O2* is the main reason for enhanced EOP capacity on CuNi‐ATO. This work provides a novel insight into designing materials for efficient ozone production.

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Influence of dimethylphenol isomers on electrochemical degradation: Kinetics, intermediates, and DFT calculation

Cited by 10 publications

References 43 publications

Bioinspired Self‐Propelled Micromotors with Improved Transport Efficiency in the Subsurface Environment for Soil Decontamination

Bioinspired Self‐Propelled Micromotors with Improved Transport Efficiency in the Subsurface Environment for Soil Decontamination

In Vitro and In Vivo Metabolic Activation and Hepatotoxicity of Environmental Pollutant 2,6-Dimethylphenol

High Selectivity toward Electrochemical Ozone Production of Sb‐SnO₂ with Cu and Ni Co‐doped

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Influence of dimethylphenol isomers on electrochemical degradation: Kinetics, intermediates, and DFT calculation

Cited by 10 publications

References 43 publications

Bioinspired Self‐Propelled Micromotors with Improved Transport Efficiency in the Subsurface Environment for Soil Decontamination

Bioinspired Self‐Propelled Micromotors with Improved Transport Efficiency in the Subsurface Environment for Soil Decontamination

In Vitro and In Vivo Metabolic Activation and Hepatotoxicity of Environmental Pollutant 2,6-Dimethylphenol

High Selectivity toward Electrochemical Ozone Production of Sb‐SnO2 with Cu and Ni Co‐doped

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High Selectivity toward Electrochemical Ozone Production of Sb‐SnO₂ with Cu and Ni Co‐doped