Highly efficient SO3Ag-functionalized MIL-101(Cr) for adsorptive desulfurization of the gas stream: Experimental and DFT study

Pourreza, Alimohammad; Askari, Saeed; Rashidi, Alimorad; Seif, Abdolvahab; Kooti, M.

doi:10.1016/j.cej.2019.01.133

Cited by 55 publications

(14 citation statements)

References 62 publications

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“…This work SO 3 Ag. [29] The short hydrogen sulfide penetration time and steep curve of silver-free MOFs indicated that these adsorbents had a poor ability to capture H 2 S (MIL-101(Cr), 24.32 mg g À 1 ; MIL-101(Cr)-SO 3 H, 28.67 mg g À 1 ). However, MIL-101(Cr)-SO 3 Ag had a longer penetration time with an enhanced adsorption capacity of 96.75 mg g À 1 .…”

Section: Functionalized Organic Ligandsmentioning

confidence: 99%

Research Progress of Hydrogen Sulfide Adsorption Based on MOFs

Liu

2021

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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: Functionalized Organic Ligandsmentioning

confidence: 99%

Research Progress of Hydrogen Sulfide Adsorption Based on MOFs

Liu

2021

ChemistrySelect

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“…In another recent study focusing on the MIL-family, Pourreza et al [56] investigated the adsorption capacity of H 2 S on three different MOFs, namely MIL−101(Cr), MIL−101(Cr)-SO 3 H and MIL−101(Cr)-SO 3 Ag in a dynamic adsorption system. In particular, the MIL−101(Cr)-SO 3 H, which demonstrated high SSA, was used as a matrix to load Ag(I) by ion exchange ( Figure 6).…”

Section: H2s Capture Via Materials Of the Institute Lavoisier (Mils)mentioning

confidence: 99%

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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“…[13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] Considering the unique pore structure and surface property, H 2 S is adsorbed by the best candidate adsorbents, i. e., MOFs to from the gas stream. [28][29][30][31][32][33][34] MOFs are recognized as a new group of porous materials which are contained the metal ions and organic ligands with mono and multi-dimensional structures. These porous materials often have high surface areas and can be utilized in a variety of applications such as gas adsorption, storage, separations, catalysis, and sensors.…”

Section: Introductionmentioning

confidence: 99%

“…The different adsorbents are those used for the desulfurization of sulfur components in both the liquid and gas phase, including zeolites, metal‐based materials, molecular sieves, and carbon‐based sorbents [13–27] . Considering the unique pore structure and surface property, H 2 S is adsorbed by the best candidate adsorbents, i. e., MOFs to from the gas stream [28–34] …”

Section: Introductionmentioning

confidence: 99%

Synthesis of Nitrogen‐Doped CNT‐Based MOF Hybrids for Adsorptive Desulfurization of the Gas Stream

Saeedirad¹,

Rashidi²,

Daraee³

et al. 2020

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In this research, hybrids of N-doped carbon nanotube (NCNT)based metal-organic framework (MOF) (NCNT/UiO-66 and NCNT/ZIF-67) were synthesized using hydrothermal method. The performance of synthesized hybrids was evaluated in hydrogen sulfide removal under a dynamic system at 30-50°C with 4500 ppm H 2 S concentration as inlet feed compared with neat UiO-66 and ZIF-67. NCNT/UiO-66 and NCNT/ZIF-67 were characterized using XRD, FTIR, FESEM, BET, and TGA. NCNT/ZIF-67 and NCNT/UiO-66 showed good adsorption capability for H 2 S with a capacity of 189.72 mg/g and 175.77 mg/g, respectively. The surface area of UiO-66 and ZIF-67 is (1351 and 1290 m 2 /g, respectively), and the addition of NCNT leads to the reduced surface area of nano adsorbent hybrids. Also, the performance of hybrids would not change after three cycles of the desulfurization process. These hybrids indicated the excellent potential for a desulfurization process.

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Highly efficient SO3Ag-functionalized MIL-101(Cr) for adsorptive desulfurization of the gas stream: Experimental and DFT study

Cited by 55 publications

References 62 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

Synthesis of Nitrogen‐Doped CNT‐Based MOF Hybrids for Adsorptive Desulfurization of the Gas Stream

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