Adsorption of hydrogen sulfide by amine-functionalized metal organic framework (MOF-199): An experimental and simulation study

Zhang, Hongyan; Yang, Chao; Geng, Qiang; Fan, Huiling; Wang, Baojun; Wu, Mengmeng; Zhang, Tian

doi:10.1016/j.apsusc.2019.143815

Cited by 76 publications

(30 citation statements)

References 52 publications

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“…Moreover, the literature has been saturated with the studies related to CuBTC (also known as HKUST-1 or MOF-199). [8][9][10][11][12] The need to explore other Cu-based MOFs and the lack of proper investigation on the regeneration of spent Cubased MOFs have motivated us to develop methanol and UVassisted regeneration method.…”

Section: Introductionmentioning

confidence: 99%

Chemisorption of hydrogen sulfide over copper-based metal–organic frameworks: methanol and UV-assisted regeneration

et al. 2021

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Section: Introductionmentioning

confidence: 99%

Chemisorption of hydrogen sulfide over copper-based metal–organic frameworks: methanol and UV-assisted regeneration

et al. 2021

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“…After the reaction of the epoxy groups with DEA, EDA, DETA, TETA, TAEA, and DABA, respectively. The characteristic peak at ~1050 cm −1 represents the C–N stretching vibration [ 29 ], and the absorption bands attributed to characteristic vibrations of epoxy groups at 910, and 842 cm −1 disappeared. Moreover, the broadband at ~3400 cm −1 was attributed to –OH stretching.…”

Section: Resultsmentioning

confidence: 99%

Selective Adsorption, Reduction, and Separation of Au(III) from Aqueous Solution with Amine-Type Non-Woven Fabric Adsorbents

Huang

et al. 2020

Materials

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Herein, adsorption, separation, and reduction of Au(III) from its aqueous solution were studied with different amine-type, non-woven fabric (NF) adsorbents fabricated with radiation-induced graft polymerization. The adsorbents exhibited different adsorption capacities of Au(III) over a concentration range of hydrochloric acid (HCl) from 5 mM to 5 M, and the diethylamine (DEA)-type adsorbent performed best under all test conditions. The DEA-type adsorbent was inert toward other metal ions, including Cu(II), Pb(II), Ni(II), Zn(II) and Li(I), within the fixed concentration range of HCl. Flow-through adsorption tests indicated DEA-type adsorbent exhibited a rapid recovery and high adsorption capacity of 3.23 mmol/g. Meanwhile, DEA-type adsorbent also exhibited high selectivity and rapid extraction for Au(III) from its mixed solution with Pt(IV) and Pd(II). After adsorption, the reduction of Au(III) was confirmed by XRD spectra, TEM, and digital micrograph images. The results indicated that nano-sized Au particles were mainly concentrated on the adsorbent in 5 mM HCl solution. In 1 M HCl solution, not only nano-sized Au particles were found, but also micro-size Au plates precipitation occurred. This study provides a novel material for selective and efficient gold uptake from aqueous solution.

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“…In addition, they exhibit a reasonable degree of thermal stability (up to 240 • C). In the recent past, various scientific works turned their attention to probing several aspects of H 2 S adsorption using this hybrid material [73][74][75][76][77][78][79][80][81][82][83][84][85][86][87][88][89].…”

Section: H 2 S Capture Via Hkust−1 (Hong King University Of Science Amentioning

confidence: 99%

“…Zhang et al [86] prepared a series of amine modified HKUST−1 via impregnation to remove H 2 S at ambient temperature. It was found that HKUST−1 could maintain its structure following modification with tertiary amine triethanolamine (TEA).…”

Section: H 2 S Capture Via Hkust−1 (Hong King University Of Science Amentioning

confidence: 99%

“…Chemisorption occurs when there is evidence of electron transfer between adsorbents and adsorbates during the adsorption process. Sometimes, the formation of a strong and often irreversible metal-sulfur bond can cleave other coordination bonds between the metal centers and linkers, leading to a structural dilapidation of the MOF's framework, as in the case of H 2 S capture in HKUST−1 modified with mono-ethanolamine and diethanolamine [86]. Consequently, it is necessary to modulate the host-guest binding interactions between the target molecules (e.g., H 2 S) and MOFs.…”

Section: Mechanisms Of H 2 S Capture Using Mofsmentioning

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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Adsorption of hydrogen sulfide by amine-functionalized metal organic framework (MOF-199): An experimental and simulation study

Cited by 76 publications

References 52 publications

Chemisorption of hydrogen sulfide over copper-based metal–organic frameworks: methanol and UV-assisted regeneration

Chemisorption of hydrogen sulfide over copper-based metal–organic frameworks: methanol and UV-assisted regeneration

Selective Adsorption, Reduction, and Separation of Au(III) from Aqueous Solution with Amine-Type Non-Woven Fabric Adsorbents

Hydrogen Sulfide (H2S) Removal via MOFs

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