Removal of fluoroquinolone drug, levofloxacin, from aqueous phase over iron based MOFs, MIL-100(Fe)

Journal of Solid State Chemistry, Journal Year: 2019, Volume and Issue: 281, P. 121029 - 121029

Published: Oct. 25, 2019

Language: Английский

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

Polymers, Journal Year: 2020, Volume and Issue: 12(11), P. 2648 - 2648

Published: Nov. 10, 2020

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

Language: Английский

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Effect of Isomorphic Metal Substitution on the Fenton and Photo-Fenton Degradation of Methylene Blue Using Fe-Based Metal–Organic Frameworks

ACS Applied Materials & Interfaces, Journal Year: 2020, Volume and Issue: 12(8), P. 9292 - 9299

Published: Feb. 3, 2020

The removal of toxic organic compounds (TOCs) using highly porous solids such as metal–organic frameworks (MOFs) has gained significant attention over the past decade. In this study, it been demonstrated that efficiency PCN-250 a heterogeneous catalyst coordination network (PCN) for both Fenton and photo-Fenton reactions can be improved by isomorphic substitution Mn Co Fe, while inhibited Ni Fe. Furthermore, Mn-substituted sample named PCN-250(Fe2Mn) decomposed 100% methylene blue (MB) in solution 300 min displayed good recyclability three cycles. This work establishes porous, commercially available, robust family MOFs potential to used catalysts well broader advanced oxidation processes (AOP) water purification applications. Overall, successfully demonstrates not only ability perform various metals within but also effect on resulting catalytic performance.

Language: Английский

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Iron-based metal-organic framework: Synthesis, structure and current technologies for water reclamation with deep insight into framework integrity

Chemosphere, Journal Year: 2021, Volume and Issue: 284, P. 131171 - 131171

Published: June 14, 2021

Water is a supreme requirement for the existence of life, contamination from point and non-point sources are creating great threat to water ecosystem. Advance tools techniques required restore quality metal-organic framework (MOFs) with tunable porous structure, striking physical chemical properties an excellent candidate it. Fe-based MOFs, which developed rapidly in recent years, foreseen as most promising overcome disadvantages traditional depolluting practices. Fe-MOFs low toxicity preferable stability possess performance potential almost all remedying contrast other MOF structures, especially visible light photocatalysis, Fenton, Fenton-like heterogeneous catalysis. become essential tool treatment due their high catalytic activity, abundant active site pollutant-specific adsorption. However, structural degradation under external chemical, photolytic, mechanical, thermal stimuli impeding further improvement activity commercialization. Understanding shortcomings integrity crucial large-scale synthesis commercial implementation Fe-MOFs-based techniques. Herein we summarize synthesis, structure advancements remediation methods using particular more attention paid adsorption, catalysis photocatalysis clear insight into mechanisms involved. For ease analysis, pollutants have been classified two major classes; inorganic organic pollutants. In this review, present first time detailed challenges employing instability.

Language: Английский

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Metal Organic Frameworks (MOFs) as Photocatalysts for the Degradation of Agricultural Pollutants in Water

ACS ES&T Engineering, Journal Year: 2021, Volume and Issue: 1(5), P. 804 - 826

Published: March 30, 2021

Increasing demand for food due to rapid population growth has exerted unprecedented pressure on the global agricultural industry. Agrochemicals are widely used ensure productivity, leading prevalence of legacy and emerging chemicals in environment, most which toxic persistent. Metal–organic frameworks (MOFs) as a group novel photocatalytic materials with ultrahigh porosity tunability have demonstrated high potential efficient removal these recalcitrant pollutants. This critical review aims present MOF-catalyzed photodegradation pesticides antibiotics. Initially, capabilities different MOF-based composites harvest visible light compared. Examples include MOFs combined bismuth oxyhalides (BiOX) graphite oxide (GO). Mechanisms involved MOF-induced processes such electron–hole (e–/h+) separation, generation reactive species, degradation pathways representative pollutants well impacts water chemistry illustrated detailed. Research applying is largely progress, many more studies greater mechanistic evaluation needed fully assess depollute water.

Language: Английский

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