Efficient removal of trichloroethylene in surfactant amended solution by nano Fe0-Nickel bimetallic composite activated sodium persulfate process

Shan, Ali; Farooq, Usman; Lyu, Shuguang; Zaman, Waqas Qamar; Abbas, Zain; Ali, Meesam; Idrees, Ayesha; Tang, Ping; Li, Ming; Sun, Yong; Sui, Qian

doi:10.1016/j.cej.2019.123995

Cited by 48 publications

(10 citation statements)

References 50 publications

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“…www.advmatinterfaces.de DMPO-SO 4 signals were consistent with previous reports. [47][48][49][50] Such characterization fully verified the existence of SO 4…”

Section: Identification Of Active Speciessupporting

confidence: 52%

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Biotemplated Shell Micromotors for Efficient Degradation of Antibiotics via Enhanced Peroxymonosulfate Activation

Wang

Hong

2022

Adv Materials Inter

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Self‐propelled magnetic MnO2@pollen micromotors have been developed as active heterogeneous catalysts of peroxymonosulfate (PMS) activation for efficient degradation of antibiotics. The MnO2 nanosheets (NSs) and Fe3O4 nanoparticles (NPs) are constructed on hollow pollens with small openings, endowing the natural materials with multifunctional properties. MnO2 NSs can decompose H2O2 to provide propulsion for micromotor movement, and also cooperate with Fe3O4 NPs to activate PMS to produce active free radicals SO4·−. Together with the OH· generated by Fe3O4 NPs and H2O2, the prepared micromotor catalyst can realize the degradation of tetracycline (TC) within several minutes. The self‐propulsion and abundant bubble formation cause effective fluid mixing and intensification of mass transfer, making up the low diffusivity defect of traditional heterogeneous catalysts. Moreover, the magnetic properties lay a foundation for the long‐range magnetic control and reutilization of heterogeneous catalysts, avoiding wastage and secondary contamination. The proposed self‐propelled pollen micromotors provide a highly efficient, economic, and environmentally friendly platform for the degradation of antibiotics.

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“…www.advmatinterfaces.de DMPO-SO 4 signals were consistent with previous reports. [47][48][49][50] Such characterization fully verified the existence of SO 4…”

Section: Identification Of Active Speciessupporting

confidence: 52%

“…In addition, the characteristic DMPO‐OH and DMPO‐SO 4 signals were consistent with previous reports. [ 47–50 ] Such characterization fully verified the existence of SO 4 ·− and OH· in this catalytic system.…”

Section: Resultsmentioning

confidence: 56%

Biotemplated Shell Micromotors for Efficient Degradation of Antibiotics via Enhanced Peroxymonosulfate Activation

Wang

Hong

2022

Adv Materials Inter

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“…Recently, a great attention has also been given to the development of AOPs based on persulfate activation, due to several inherent advantages of sulphate radicals such as (i) the convenience of storage and transportation of solid persulfate, (ii) the different way to activate persulfate (e.g. thermal or electrochemical processes, Fe 2+ ) and (iii) the longer lifetime of sulphate radicals compared to hydroxyl radicals [133][134][135][136][137].…”

Section: -Degradation Processes Iii1 -Biological Processesmentioning

confidence: 99%

“…Interestingly, a lower inhibitory effect was observed when using surfactants with bigger hydrated polar head, due to the reduction of surfactant adsorption at the surface of the catalyst [18,112]. Some other non-AOPs chemical oxidation processes have also been applied to the treatment of SW solution, particularly ozone, activated persulfate [135,136,161,162], and electrochemical processes using active electrodes that do not produce hydroxyl radicals [128,163]. Lower effectiveness for the removal of target pollutants has been reported because of the generation of weaker oxidant species [1].…”

Section: -Degradation Processes Iii1 -Biological Processesmentioning

confidence: 99%

Remediation of soils contaminated by hydrophobic organic compounds: How to recover extracting agents from soil washing solutions?

Trellu

Péchaud

Oturan

et al. 2021

Journal of Hazardous Materials

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A lot of soil (particularly, former industrial and military sites) has been contaminated by various highly toxic contaminants such as petroleum hydrocarbons, polycyclic aromatic hydrocarbons (PAHs), polychlorobiphenyls (PCBs) or chlorinated solvents. Soil remediation is now required for their promotion into new industrial or real estate activities. Therefore, the soil washing (SW) process enhanced by the use of extracting agents (EAs) such as surfactants or cyclodextrins (CDs) has been developed for the removal of hydrophobic organic compounds (HOCs) from contaminated soils. The use of extracting agents allows improving the transfer of HOCs from the soil-sorbed fraction to the washing solution. However, using large amount of extracting agents is also a critical drawback for cost-effectiveness of the SW process. The aim of this review is to examine how extracting agents might be recovered from SW solutions for reuse.Various separation processes are able to recover large amounts of extracting agents according to the physicochemical characteristics of target pollutants and extracting agents. However, an additional treatment step is required for the degradation of recovered pollutants. SW solutions

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“…Some of the methods used in the last decades include thermal incineration [16]; biodegradation [17]; phytoremediation [18]; physical adsorption [19]; advanced oxidation processes (AOP) such as photocatalytic oxidation [20]; Fenton oxidation methods [21]; and reductive methods dechlorination, such as zero valence reduction [22,23], catalytic [24,25], as well as electrochemical dechlorination methods [26], using zero-valent iron [27], palladium-based materials [28] and bimetallic metals [29]. Although these methods are effective for TCE degradation, each has its advantages and limitations due to the use of numerous oxidants in addition to heat treatment techniques, ultraviolet irradiation, as well as transition metals for the activation of oxidants [30].…”

Section: Introductionmentioning

confidence: 99%

High Degradation of Trichloroethylene in Water by Nanostructured MeNPs@CALB Biohybrid Catalysts

2020

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In this study, a methodology was developed for the rapid degradation of trichloroethylene (TCE) and 1,1-dichloroethylene (1,1-DCE) in distilled water and room temperature without the production of toxic chlorinated by-products. This process was carried out using bionanohybrids of different metals (Pd, Fe, Cu and Zn) obtained by enzyme–metal coordination called MeNPs@CALB, which present different metal species and nanoparticle sizes. The Cu2O@CALB biohybrid, which contained Cu2O nanoparticles, showed excellent catalytic performance in TCE degradation by removing 95% (>125 ppm) in 10 min using 1.5 g/L of catalyst. On the other hand, in the degradation reaction of 1,1-DCE, Cu2O@CALB eliminated 94% (93 ppm) in 1 min. Cu2O@CALB exhibited excellent stability and recyclability under sustainable conditions, maintaining its effectiveness in more than 90% for three cycles.

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Efficient removal of trichloroethylene in surfactant amended solution by nano Fe0-Nickel bimetallic composite activated sodium persulfate process

Cited by 48 publications

References 50 publications

Biotemplated Shell Micromotors for Efficient Degradation of Antibiotics via Enhanced Peroxymonosulfate Activation

Biotemplated Shell Micromotors for Efficient Degradation of Antibiotics via Enhanced Peroxymonosulfate Activation

Remediation of soils contaminated by hydrophobic organic compounds: How to recover extracting agents from soil washing solutions?

High Degradation of Trichloroethylene in Water by Nanostructured MeNPs@CALB Biohybrid Catalysts

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