Efficient photo-Fenton like activity in modified MIL-53(Fe) for removal of pesticides: Regulation of photogenerated electron migration

Mei, Weidong; Song, Hui; Tian, Ziyi; Zuo, Shiyu; Li, Dongya; Xu, Haiming; Xia, Dongsheng

doi:10.1016/j.materresbull.2019.110570

Cited by 44 publications

(10 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The two bands at 749 and 554 cm –1 may be assigned to the C–H bending vibration of the aromatic ring and the Fe–O vibration, respectively . The two bands at 1597 and 1390 cm –1 can be ascribed to the symmetric stretching mode and asymmetric stretching mode of the COO – group, respectively …”

Section: Resultsmentioning

confidence: 99%

“…2 The two bands at 1597 and 1390 cm −1 can be ascribed to the symmetric stretching mode and asymmetric stretching mode of the COO − group, respectively. 24 The Brunauer−Emmett−Teller 25 (BET) specific surface area and average pore width of Fe-MOF-1 were determined to be 23.1 m 2 •g −1 and 7.6 nm, respectively, using nitrogen adsorption−desorption isotherms shown in Figure 2c. As other authors reported before, 5 Fe-based MIL-53 structures usually have a lower specific surface area and smaller pore size.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Controlled Morphological Transformation, Photocatalytic Properties, and Electrocatalytic OER Performance of Fe-MOF Nanopolyhedra

Song

Wang

et al. 2021

J. Phys. Chem. C

View full text Add to dashboard Cite

In this work, we prepared a series of Fe-MOF polyhedra [metal organic framework (MOF)-1 ∼ −13] by introducing β-cyclodextrin (CD) as a morphology modifier using an interaction between ferric chloride and terephthalic acid in dimethylformamide. A novel structural evolution from a hexagonal bipyramid to a bipyramidal hexagonal prism was clearly observed. This evolution was gradual and could be well reflected by the height ratio of the prism and pyramid in these polyhedral structures. It is the relative concentration of β-CD that drives this structural evolution. Although the reaction temperature and time can also affect the height ratio to some extent, their influence can only be realized in the presence of β-CD. In the absence of β-CD, only hexagonal bipyramid structures were obtained. It is worth noting that Fe-MOF-1 with a bipyramidal hexagonal prism structure (prism height, ∼130 nm) showed typical paramagnetic characteristics, and its saturation magnetization was determined to be 23.1 emu•g −1 . Furthermore, we found that Fe-MOF-1 exhibited good photocatalytic performance for different types of dyes (crystal violet with positives and methyl orange with negative charges). At the same time, a possible photocatalytic mechanism was proposed to explain the difference of degradation efficiency between the two dyes. Also, we use the combination of specific surface area and zeta potential to explain the differences in the catalytic properties of a series of Fe-MOF materials. In addition, MOF-1 shows the same electrocatalytic oxygen evolution reaction performance as some bimetallic MOFs such as Fe-Co-MOF. For example, the overpotential of MOF-1 is 398 mV at 10 mA•cm −2 current density, while that of Fe-Co-MOF is 410 mV. We believe that the current work can contribute to the adjustment, modification, and application of MOF nanostructures.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Controlled Morphological Transformation, Photocatalytic Properties, and Electrocatalytic OER Performance of Fe-MOF Nanopolyhedra

Song

Wang

et al. 2021

J. Phys. Chem. C

View full text Add to dashboard Cite

show abstract

“…Some articles published for photocatalytic degradations of phenols, pesticides, herbicides, and PAHs using MOFs and their composites are found in Table 4 . According to a report by Mei et al, 2019, complete mineralization of thiamethoxam was achieved within 60 min of visible light irradiation in the presence of MIL-53(Fe) [ 190 ]. Before that, Ahmad et al (2018) decorated MIL-100(Fe) with for ZnO nanosphere for the degradation of phenol, bisphenol A and atrazine.…”

Section: Mofs and Composites For Adsorption And Photocatalytic Degmentioning

confidence: 99%

A Critical Review on Metal-Organic Frameworks and Their Composites as Advanced Materials for Adsorption and Photocatalytic Degradation of Emerging Organic Pollutants from Wastewater

et al. 2020

View full text Add to dashboard Cite

Water-borne emerging pollutants are among the greatest concern of our modern society. Many of these pollutants are categorized as endocrine disruptors due to their environmental toxicities. They are harmful to humans, aquatic animals, and plants, to the larger extent, destroying the ecosystem. Thus, effective environmental remediations of these pollutants became necessary. Among the various remediation techniques, adsorption and photocatalytic degradation have been single out as the most promising. This review is devoted to the compilations and analysis of the role of metal-organic frameworks (MOFs) and their composites as potential materials for such applications. Emerging organic pollutants, like dyes, herbicides, pesticides, pharmaceutical products, phenols, polycyclic aromatic hydrocarbons, and perfluorinated alkyl substances, have been extensively studied. Important parameters that affect these processes, such as surface area, bandgap, percentage removal, equilibrium time, adsorption capacity, and recyclability, are documented. Finally, we paint the current scenario and challenges that need to be addressed for MOFs and their composites to be exploited for commercial applications.

show abstract

“…The Fe III with higher electronegativity has a greater ability to attract negative electrons, which can reduce positron annihilation rate and increase positron lifetime. 21 Bimetallic MOFs have also been found to exhibit highly efficient photo-Fenton degradation of organic pollutants under visible-light irradiation. 22,23 Fabricating heterostructure materials by integrating MOFs with other functionalized materials is another strategy for improving the photocatalytic performance of MOFs.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Highly efficient heterogeneous photo-Fenton BiOCl/MIL-100(Fe) nanoscaled hybrid catalysts prepared by green one-step coprecipitation for degradation of organic contaminants

Jiang

Tian

et al. 2021

RSC Adv.

View full text Add to dashboard Cite

show abstract

Efficient photo-Fenton like activity in modified MIL-53(Fe) for removal of pesticides: Regulation of photogenerated electron migration

Cited by 44 publications

References 56 publications

Controlled Morphological Transformation, Photocatalytic Properties, and Electrocatalytic OER Performance of Fe-MOF Nanopolyhedra

Controlled Morphological Transformation, Photocatalytic Properties, and Electrocatalytic OER Performance of Fe-MOF Nanopolyhedra

A Critical Review on Metal-Organic Frameworks and Their Composites as Advanced Materials for Adsorption and Photocatalytic Degradation of Emerging Organic Pollutants from Wastewater

Highly efficient heterogeneous photo-Fenton BiOCl/MIL-100(Fe) nanoscaled hybrid catalysts prepared by green one-step coprecipitation for degradation of organic contaminants

Contact Info

Product

Resources

About