Design and application of metal-organic frameworks and derivatives as heterogeneous Fenton-like catalysts for organic wastewater treatment: A review

Lu, Sen; Liu, Libing; Demissie, Hailu; An, Guangyu; Wang, Dongsheng

doi:10.1016/j.envint.2020.106273

Cited by 150 publications

(37 citation statements)

References 297 publications

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“…However, such catalyst systems are mostly only effective at a narrow pH range, usually at the acidic side of the spectrum. Being a homogeneous catalyst, classical Fenton catalysts are often non-recoverable and produce a high amount of iron sludge (in the form of Fe III ions as the reaction byproduct) [ 102 ]. Fabrication of heterogeneous Fenton catalysts have been regarded as a prospective solution in solving these problems, with one of the strategies being to fabricate Fe-based MOFs such as MIL-100 [ 11 ] and MIL-53 [ 103 ].…”

Section: Specific Improvement Strategies Related To Each Role Of Metal-organic Framework In Wastewater Treatmentmentioning

confidence: 99%

Recent Improvement Strategies on Metal-Organic Frameworks as Adsorbent, Catalyst, and Membrane for Wastewater Treatment

et al. 2021

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The accumulation of pollutants in water is dangerous for the environment and human lives. Some of them are considered as persistent organic pollutants (POPs) that cannot be eliminated from wastewater effluent. Thus, many researchers have devoted their efforts to improving the existing technology or providing an alternative strategy to solve this environmental problem. One of the attractive materials for this purpose are metal-organic frameworks (MOFs) due to their superior high surface area, high porosity, and the tunable features of their structures and function. This review provides an up-to-date and comprehensive description of MOFs and their crucial role as adsorbent, catalyst, and membrane in wastewater treatment. This study also highlighted several strategies to improve their capability to remove pollutants from water effluent.

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Section: Specific Improvement Strategies Related To Each Role Of Metal-organic Framework In Wastewater Treatmentmentioning

confidence: 99%

Recent Improvement Strategies on Metal-Organic Frameworks as Adsorbent, Catalyst, and Membrane for Wastewater Treatment

et al. 2021

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“…Metal-organic frameworks (MOFs) are crystalline porous materials including metal ions and organic ligands. MOF materials have tunable surface chemistries and pore sizes, as well as large specific surface areas [18][19][20], allowing their application for enzyme immobilization. For example, laccase immobilization was achieved using micro-and mesoporous Zr-MOF, achieving an improvement of the enzyme's reusability and stability [21].…”

Section: Introductionmentioning

confidence: 99%

Magnetic Metal Organic Framework Immobilized Laccase for Wastewater Decolorization

et al. 2021

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The laccase enzyme was successfully immobilized over a magnetic amino-functionalized metal–organic framework Fe3O4-NH2@MIL-101(Cr). Different techniques were used for the characterization of the synthesized materials. The Fe3O4-NH2@MIL-101(Cr) laccase showed excellent resistance to high temperatures and low pH levels with a high immobilization capacity and large activity recovery, due to the combination of covalent binding and adsorption advantages. The long-term storage of immobilized laccase for 28 days indicated a retention of 88% of its initial activity, due to the high stability of the immobilized system. Furthermore, a residual activity of 49% was observed at 85 °C. The immobilized laccase was effectively used for the biodegradation of Reactive Black 5 (RB) and Alizarin Red S (AR) dyes in water. The factors affecting the RB and AR degradation using the immobilized laccase (dye concentration, temperature and pH) were investigated to determine the optimum treatment conditions. The optimum conditions for dye removal were a 5 mg/L dye concentration, temperature of 25 °C, and a pH of 4. At the optimum conditions, the biodegradation and sorption-synergistic mechanism of the Fe3O4-NH2@MIL-101(Cr) laccase system caused the total removal of AR and 81% of the RB. Interestingly, the reusability study of this immobilized enzyme up to five cycles indicated the ability to reuse it several times for water treatment.

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“…In addition, the leaching concentration of Fe ions after the reaction is generally in the range of 0.03-2 mg L −1 for MOF catalysts based on Fe NPs, which is below the EU environmental standard (2 mg L −1 ). On the other hand, modified MOF-based catalysts can reduce the leaching of metal ions by protecting the carbon matrix and core-layer structure [160].…”

Section: Discussionmentioning

confidence: 99%

Advances in the Application of Nanocatalysts in Photocatalytic Processes for the Treatment of Food Dyes: A Review

et al. 2021

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The use of food additives (such as dyes, which improve the appearance of the products) has become more prominent, due to the rapid population growth and the increase in demand for beverages and processed foods. The dyes are usually found in effluents that are discharged into the environment without previous treatment; this promotes mass contamination and alters the aquatic environment. In recent years, advanced oxidation processes (AOPs) have proven to be effective technologies used for wastewater treatment through the destruction of the total organic content of toxic contaminants, including food dyes. Studies have shown that the introduction of catalysts in AOPs improve treatment efficiency (i.e., complete decomposition without secondary contamination). The present review offers a quick reference for researchers, regarding the treatment of wastewater containing food dyes and the different types of AOPs, with different catalyst and nanocatalyst materials obtained from traditional and green chemical syntheses.

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Design and application of metal-organic frameworks and derivatives as heterogeneous Fenton-like catalysts for organic wastewater treatment: A review

Cited by 150 publications

References 297 publications

Recent Improvement Strategies on Metal-Organic Frameworks as Adsorbent, Catalyst, and Membrane for Wastewater Treatment

Recent Improvement Strategies on Metal-Organic Frameworks as Adsorbent, Catalyst, and Membrane for Wastewater Treatment

Magnetic Metal Organic Framework Immobilized Laccase for Wastewater Decolorization

Advances in the Application of Nanocatalysts in Photocatalytic Processes for the Treatment of Food Dyes: A Review

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