Adsorption of hydrogen sulfide over a novel metal organic framework –metal oxide nanocomposite: TOUO-x (TiO2/UiO-66)

Daraee, Maryam; Saeedirad, Raheleh; Rashidi, Alimorad

doi:10.1016/j.jssc.2019.07.027

Cited by 24 publications

(4 citation statements)

References 42 publications

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“…Daraee et al prepared Touo-x nanocomposites (TiO 2 /UiO-66, x = 1, 3 and 5 wt% TiO 2 ) and studied their hydrogen sulfide adsorption properties. [37] The penetration test results showed that the H 2 S absorption capacities of the nanocomposites decreased with the increase of temperature, indicating that the physical adsorption mechanism played a dominant role. Compared with Touo-3 (986 m 2 g À 1 ) and Touo-5 (652 m 2 g À 1 ), Touo-1 was superior to other materials (0.21 g s-g À 1 ), which may be due to the higher specific surface area (1171 m 2 g À 1 ).…”

Section: Mof Compositesmentioning

confidence: 99%

Research Progress of Hydrogen Sulfide Adsorption Based on MOFs

Liu

2021

ChemistrySelect

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Adsorption method is one of the main technologies for hydrogen sulfide treatment. Developing an adsorbent with good selectivity, large adsorption capacity, stability and good regeneration is the key to the removal of hydrogen sulfide by adsorption method. Compared with the traditional adsorbents, Metal-organic frameworks (MOFs) have a large specific surface area, a variety of framework structures, adjustable pore sizes and functionality, showing significant advantages in the adsorption of hydrogen sulfide. In this paper, the research progress of hydrogen sulfide adsorption based on MOFs in recent years was summarized. The influences of pore structure and unsaturated metal sites on the hydrogen sulfide adsorption performance of MOFs were discussed, and the strategies of functionalized groups and preparation of composites were proposed to improve the hydrogen sulfide adsorption performance of MOFs. Finally, the problems and challenges in the future industrial application of MOFs as low concentration hydrogen sulfide adsorbents were pointed out.

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Section: Mof Compositesmentioning

confidence: 99%

Research Progress of Hydrogen Sulfide Adsorption Based on MOFs

Liu

2021

ChemistrySelect

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“…It was also stated that the sufficient H2S/CO2 and H2S/CH4 selectivity of these materials can afford great opportunities to produce H2S, limiting the impurities of other compounds, such as CO2, to acceptable levels. Recently, Daraee et al [96] prepared TOUO-x nano composites (TiO2/UiO-66, x: 1, 3 and 5 wt.% of TiO2) and investigated their sulfur uptake performance. The results were then evaluated and compared with pristine UiO-66 at two different temperatures (30 and 50 °C) under space velocity of 30,000 h −1 and H2S concentration of 4000 ppm in the gas stream.…”

Section: H2s Capture Via Universitetet I Oslo Mof (Uio-66)mentioning

confidence: 99%

“…Energy-dispersive X-ray spectroscopy (EDX) gave evidence for the presence of sulfur suggesting that there is a strong interaction between the sulfur molecules and the sorbent, probably due to chemisorption. However, the authors reported that following two cycles of H2S adsorption tests, the capacity of TOUO−1 was almost fully regenerated (its capacity decreased by Recently, Daraee et al [96] prepared TOUO-x nano composites (TiO 2 /UiO-66, x: 1, 3 and 5 wt.% of TiO 2 ) and investigated their sulfur uptake performance. The results were then evaluated and compared with pristine UiO-66 at two different temperatures (30 and 50 • C) under space velocity of 30,000 h −1 and H 2 S concentration of 4000 ppm in the gas stream.…”

Section: H2s Capture Via Universitetet I Oslo Mof (Uio-66)mentioning

confidence: 99%

“…Recently, Daraee et al [ 96 ] prepared TOUO-x nano composites (TiO 2 /UiO-66, x: 1, 3 and 5 wt.% of TiO 2 ) and investigated their sulfur uptake performance. The results were then evaluated and compared with pristine UiO-66 at two different temperatures (30 and 50 °C) under space velocity of 30,000 h −1 and H 2 S concentration of 4000 ppm in the gas stream.…”

Section: H 2 S Capture Via Universitetet I Oslomentioning

confidence: 99%

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Hydrogen Sulfide (H2S) Removal via MOFs

et al. 2020

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The removal of the environmentally toxic and corrosive hydrogen sulfide (H2S) from gas streams with varying overall pressure and H2S concentration is a long-standing challenge faced by the oil and gas industries. The present work focuses on H2S capture using a relatively new type of material, namely metal-organic frameworks (MOFs), in an effort to shed light on their potential as adsorbents in the field of gas storage and separation. MOFs hold great promise as they make possible the design of structures from organic and inorganic units, but also as they have provided an answer to a long-term challenging objective, i.e., how to design extended structures of materials. Moreover, in designing MOFs, one may functionalize the organic units and thus, in essence, create pores with different functionalities, and also to expand the pores in order to increase pore openings. The work presented herein provides a detailed discussion, by thoroughly combining the existing literature on new developments in MOFs for H2S removal, and tries to provide insight into new areas for further research.

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Orally Administrable H₂S‐Scavenging Metal–Organic Framework Prepared by Co‐Flow Microfluidics for Comprehensive Restoration of Intestinal Milieu

et al. 2023

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Intestinal milieu disorders are strongly related to the occurrence of inflammatory bowel diseases (IBDs), which results from mucosa destruction, epithelium disruption, and tight junction (TJ) proteins loss. Excess of H2S in the intestinal milieu produced by the sulfate‐reducing bacteria metabolism contributes to development of IBDs via epithelial barrier breakdown. Conventional interventions, such as surgery and anti‐inflammatory medications, are considered not completely effective because of frequent recurrence and other complications. Herein, a novel oral delivery system, a hydroxypropyl methylcellulose acetate succinate (HPMCAS)‐based polymer‐coated Zr‐based metal–organic framework (UiO‐66) with a Cux‐rhodamine B (CR) probe (hereinafter referred to as HUR), is produced via a co‐flow microfluidic approach with the ability to reduce H2S levels, thus restoring the intestinal lumen milieu. HPMCAS serves as an enteric coating that exposes UiO‐66@CR at the pH of the intestine but not the acidic pH of the stomach. The synthesized HUR exhibits notable therapeutic efficacy, including mucosa recovery, epithelium integrity restoration, and TJ proteins upregulation via H2S scavenging to protect against intestinal barrier damage and microbiome dysbiosis. Thus, HUR is verified to be a promising theranostic platform able to decrease the H2S content for intestinal milieu disorder treatment. The presented study therefore opens the door for further exploitation for IBDs therapy.

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Adsorption of hydrogen sulfide over a novel metal organic framework –metal oxide nanocomposite: TOUO-x (TiO2/UiO-66)

Cited by 24 publications

References 42 publications

Research Progress of Hydrogen Sulfide Adsorption Based on MOFs

Research Progress of Hydrogen Sulfide Adsorption Based on MOFs

Hydrogen Sulfide (H2S) Removal via MOFs

Orally Administrable H₂S‐Scavenging Metal–Organic Framework Prepared by Co‐Flow Microfluidics for Comprehensive Restoration of Intestinal Milieu

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Adsorption of hydrogen sulfide over a novel metal organic framework –metal oxide nanocomposite: TOUO-x (TiO2/UiO-66)

Cited by 24 publications

References 42 publications

Research Progress of Hydrogen Sulfide Adsorption Based on MOFs

Research Progress of Hydrogen Sulfide Adsorption Based on MOFs

Hydrogen Sulfide (H2S) Removal via MOFs

Orally Administrable H2S‐Scavenging Metal–Organic Framework Prepared by Co‐Flow Microfluidics for Comprehensive Restoration of Intestinal Milieu

Contact Info

Product

Resources

About

Orally Administrable H₂S‐Scavenging Metal–Organic Framework Prepared by Co‐Flow Microfluidics for Comprehensive Restoration of Intestinal Milieu