Microwave-enhanced Fenton-like degradation by surface-modified metal--organic frameworks as a promising method for removal of dye from aqueous samples

Moradi, S.E.; Dadfarnia, Shayessteh; Shabani, Ali Mohammad Haji; Emami, Saeed

doi:10.3906/kim-1607-5

Cited by 16 publications

(8 citation statements)

References 39 publications

(52 reference statements)

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“…Also, the EDS spectrum represented the corporation of Fe ions in MIL-100(Fe) structure (Figure S2c and Table S2). These values are close to the reported values for MOFs [11]. The total pore volume of MIL-100(Fe) and MIL-100(Fe)/FA are estimated to be 0.32 and 0.13 cm 3 /g, and the pore size distribution of MIL-100(Fe) and MIL-100(Fe)/FA are observed at 24.20 and 20.06 Å.…”

Section: Resultssupporting

confidence: 87%

“…Dual armed therapy and real-time monitored treatment trends of tumors called "theranostics" have gained attention in modern cancer treatment [11][12][13]. Moreover, using smart molecules for targeting, so-called "active targeting," in a nanoscale package harbors both selective tissue internalization and enhanced permeability and retention (EPR) effects of "passive targeting" which mainly accumulates the drug in tumor areas [14,15].…”

Section: Introductionmentioning

confidence: 99%

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Theranostic Effect of Folic Acid Functionalized MIL‐100(Fe) for Delivery of Prodigiosin and Simultaneous Tracking‐Combating Breast Cancer

Mokhtarian

Rastegari

Zeinali

et al. 2022

Journal of Nanomaterials

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The metal organic framework (MOF) member, MIL-100(Fe), is considered as attractive drug nanocarrier that may be due to the great porosity, colloidal stability, and biocompatibility. In the present study, the new electrochemical synthesis procedure was presented for MIL-100(Fe) building block, and secondly, folic acid (FA) was introduced to the structure for assessing its potential targeted ability to be entrapped by folic acid-positive breast cancer cells, MCF-7. Several techniques such as SEM, XRD, and FT-IR were used to characterize synthesized nanostructures. Both MIL-100(Fe) and MIL-100(Fe)/FA nanoparticles were between 50 to 200 nm with a slightly positive net charge with an area of 1350 and 831.84 m2/g, respectively. The prodigiosin (PG) is selected as a model drug for MIL-100(Fe) and MIL-100(Fe)/FA-targeted delivery owing to its natural fluorescence and cancer cell selectiveness. The loading capacity of both nanocarrier was around 40% with 93-97% loading efficacy. Moreover, the pH-sensitive prodigiosin release rate of MIL-100(Fe)@PG and MIL-100(Fe)/FA@PG showed that 69 to 73% of the drug was released after 24 hours in an acidic environment with around 20% unwanted leakage. The anticancer potential MIL-100(Fe)/FA cells showed the improvement of selective index (SI) from 3.21 to 12.48 which means that folic acid acts as an effective ligand. The study of cells treated with fluorescence microscopy and flow cytometry analysis reveals the dependence of the receptor on the nanoparticle through endocytosis. Considering the effects of nanoparticles on healthy cells, MIL-100(Fe) and MIL-100(Fe)/FA nanoparticles can be introduced as targeted drug delivery systems for smart targeting breast cancer cells with minimal side effects.

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Section: Resultssupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Theranostic Effect of Folic Acid Functionalized MIL‐100(Fe) for Delivery of Prodigiosin and Simultaneous Tracking‐Combating Breast Cancer

Mokhtarian

Rastegari

Zeinali

et al. 2022

Journal of Nanomaterials

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“…In heterogeneous processes, Fenton reactions are also favored under acidic conditions, since in alkaline conditions, decomposition of H 2 O 2 to H 2 O and O 2 is favored decreasing its concentration for Fenton reaction, which highest effectiveness is in the pH range 3.0-6.0. [56][57][58] Surprisingly, in the present study, the discoloration efficiency of AR8 decreased only slightly with increase of pH with no significant difference between pH 2.6-5.6 (t test, P = 0.05; Figure 7a) achieving total discoloration after 60 min. However, with further pH increase to 7.2, a slower degradation was evident.…”

Section: Effect Of Initial Phcontrasting

confidence: 60%

Degradation of Acid Red 8 Dye Using Photo-Fenton Reaction Mediated by Titanium Modified Catalysts

Bento

Emídio

Hammer

et al. 2019

J. Braz. Chem. Soc.

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Catalysts prepared by co-precipitation of iron and titanium were evaluated in heterogeneous photo-Fenton degradation of the azo dye Acid Red 8 under blacklight irradiation. Materials with different titanium contents (0 < Ti/Fe < 0.6) were characterized using X-ray diffractometry, scanning electron microscopy, X-ray fluorescence spectroscopy, specific surface area and X-ray photoelectron spectroscopy. Hematite was identified as main phase in materials with lowest Ti content, while titanomaghemite was predominant at high Ti content. Highest degradation was obtained using titanium free catalyst due to iron leaching, which promoted a homogeneous reaction. Addition of Ti led to a heterogeneous process with a maximum when Ti/Fe = 0.40 achieving 0.76 mol of dye mineralized per mol of soluble iron after 90 min, using 10 mmol L-1 H 2 O 2 at pH 5.6, value at least three times higher than that observed for catalysts with lower Ti content. The results indicate that Ti stabilizes the catalyst and increases its heterogeneous activity in photo-Fenton process.

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“…Recent studies have shown that, in the presence of hydrogen peroxide, MOF-based Fenton-like processes can be very effective in removing organic pollutants, including Methylene blue, Rhodamine B, phenol, and pharmaceuticals. ,,,, Most reactions can be performed under a wide pH range. − , In the presence of visible light and H 2 O 2 , the catalytic performance of MIL-53(Fe) can be improved significantly . This enhancement can be evaluated by using the synergetic index: SI = k MVH /( k MH + k MV ).…”

Section: Mof-based Advanced Oxidation Processmentioning

confidence: 99%

Water Contaminant Elimination Based on Metal–Organic Frameworks and Perspective on Their Industrial Applications

Li¹,

Wang²,

Cao³

et al. 2019

ACS Sustainable Chem. Eng.

195

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Nowadays, one of the most challenging sustainability issues faced by society is the safety of water resources. Water pollution caused by hazardous contaminants (e.g., heavy metal ions, emerging contaminants, organic dyes) is a serious issue because of acute toxicities and the carcinogenic nature of the pollutants. With the advent of materials engineering, unprecedented technical advances have been achieved through diverse technologies in recent decades, including photocatalytic oxidation, photo-Fenton, electron Fenton, adsorption, and separation. However, the applications of these technologies have suffered from several limitations, such as the uncompleted degradation efficiency, high energy consumption, narrow pH range for application etc. Metal–organic frameworks (MOFs) have aroused increasing studies in gas storage, separation, sensing, water/air purification, and catalysis. The effectiveness of the above applications has been extensively recognized. In recent years, these highly ordered and porous crystalline structures have been recognized as a potential alternative to overcome the technical limitations in the area of water pollution control. This perspective article reports recent progress in the applications of MOFs in the field of environmental pollutant elimination, including the adsorption, advanced oxidation process (AOP) heterogeneous Fenton-like reactions, and MOF-based membranes for pollutant filtration.

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Microwave-enhanced Fenton-like degradation by surface-modified metal--organic frameworks as a promising method for removal of dye from aqueous samples

Cited by 16 publications

References 39 publications

Theranostic Effect of Folic Acid Functionalized MIL‐100(Fe) for Delivery of Prodigiosin and Simultaneous Tracking‐Combating Breast Cancer

Theranostic Effect of Folic Acid Functionalized MIL‐100(Fe) for Delivery of Prodigiosin and Simultaneous Tracking‐Combating Breast Cancer

Degradation of Acid Red 8 Dye Using Photo-Fenton Reaction Mediated by Titanium Modified Catalysts

Water Contaminant Elimination Based on Metal–Organic Frameworks and Perspective on Their Industrial Applications

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