Size-selective adsorption of methyl orange using a novel nano-composite by encapsulating HKUST-1 in hyper-crosslinked polystyrene networks

Shen, Jiachun; Wang, Xuzeng; Zhang, Limin; Yang, Zhen; Yang, Weiben; Tian, Ziqi; Chen, Jianqiang; Tao, Tao

doi:10.1016/j.jclepro.2018.03.015

Cited by 48 publications

(11 citation statements)

References 54 publications

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“…However, from the XPS spectrum of HKUST-1@CMCS (Figure d), it could be clearly seen that the relative intensity of the Cu–O peak was larger than that of the Cu–N peak, which was a significant change compared with Cu@CMCS. This result of XPS spectrum might be explained by the fact that the BTC participated in the coordination of Cu 2+ during the growth of HKUST-1, resulting in an increase in the relative intensity of Cu–O binding energy. − …”

Section: Resultsmentioning

confidence: 99%

Facile Method To Prepare a Novel Biological HKUST-1@CMCS with Macroscopic Shape Control for the Long-Acting and Sustained Release

Huang

Chen

Tang

et al. 2019

ACS Appl. Mater. Interfaces

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We have developed a green and versatile method to prepare hierarchically porous Cu 3 (BTC) 2 @ carboxymethyl chitosan (HKUST-1@CMCS) with a macroscopic shape control and designable performance via the crosslinking of Cu(II) ions with CMCS. Furthermore, atomic force microscopy, scanning electron microscopy, powder X-ray diffraction, Brunauer−Emmett−Teller, and X-ray photoelectron spectroscopy analyses showed that the morphology of HKUST-1 could be controlled and changed by tailoring the surface roughness (R q ) of polymer matrix. For the ball-like, fiberlike, and membrane-like composites, the matrix R q values were 887, 88.4, and 18.2 nm and the average sizes of HKUST-1 crystals were about 10.2, 5.9, and 1.7 μm, respectively. It was found that the larger the R q of the polymer matrix, the higher the drug payload. The results of drug release showed that the release percentage of dimethyl fumarate from HKUST-1@CMCS was 66% in 326 h, whereas that of Cu@CMCS was only 12 h. Obviously, the HKUST-1@CMCS had a long-acting and sustained release property compared to that of Cu@CMCS due to its complementary advantages of metal−organic frameworks (MOFs) and polymers. Therefore, this study not only provided an interesting way to make up for the shortcomings of MOFs and natural polymer but also developed a long-acting delivery system for a huge potential application prospect.

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Section: Resultsmentioning

confidence: 99%

Facile Method To Prepare a Novel Biological HKUST-1@CMCS with Macroscopic Shape Control for the Long-Acting and Sustained Release

Huang

Chen

Tang

et al. 2019

ACS Appl. Mater. Interfaces

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“…44 These negatively charged networks will bond to positively charged MB molecules (Figure 5g) because of strong electrostatic interactions. 45,46 As the photocatalytic effect is bestowed by the TiO 2 , the question arises as to the mechanism by which MB molecules are able to interact with the TiO 2 through the TDI encapsulation layer, that is, the structure must be porous to some degree. We speculate that there may be some tunnels in the network structure which would allow a few MB molecules to diffuse into the network and contact the TiO 2 nanoparticles.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

TDI/TiO₂ Hybrid Networks for Superhydrophobic Coatings with Superior UV Durability and Cation Adsorption Functionality

Huang

Gurney

Wang

et al. 2019

ACS Appl. Mater. Interfaces

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Durability under UV illumination remains a big challenge of TiO 2 -based superhydrophobic coatings, with the photocatalytic effect causing degradation of low-surface-energy material over time, resulting in the surfaces losing their hydrophobicity. We report surfaces made from tolylene-2,4diisocyanate (TDI)/TiO 2 hybrid networks that demonstrate superhydrophobicity and superior UV durability. Structural and morphological studies reveal that the TDI/TiO 2 hybrid networks are composed of TiO 2 nanoparticles interconnected with TDI bridges and then encapsulated by a TDI layer. Through controlling the fraction of TDI in the synthesis process, the thickness of the TDI encapsulation layer around the TDI/TiO 2 hybrid networks can be varied. When the weight ratio of TDI/TiO 2 is 5:1, the superhydrophobicity of the hybrid network surface remains almost unchanged after a month of continuous UV illumination. This hybrid network surface can also clean methylene blue solution through the synergistic effects of cation adsorption and photocatalysis, holding promising potential for applications toward reducing cation pollutions in both liquid and air environments.

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“…S1(c)). The molar qe of 1naphthol was the lowest among all four contaminants at most pH values, which may be due to the relatively larger size of one 1-naphthol molecule occupying a greater area of adsorption sites [39]. For 4-nitrophenol and 4-chlorophenol, which had similar molecular sizes, the greater adsorption of 4-nitrophenol may be attributed to the stronger electron-withdrawing effect of nitro groups, making 4-nitrophenol act as a stronger acid and π-electron acceptor, and binding more tightly with basic nitrogencontaining and π-electron donor groups in the nanocomposite, respectively.…”

Section: Effect Of Contaminant Typementioning

confidence: 90%

Efficient adsorption of four phenolic compounds using a robust nanocomposite fabricated by confining 2D porous organic polymers in 3D anion exchangers

Yang

Zhang

Wang

et al. 2020

Chemical Engineering Journal

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Size-selective adsorption of methyl orange using a novel nano-composite by encapsulating HKUST-1 in hyper-crosslinked polystyrene networks

Cited by 48 publications

References 54 publications

Facile Method To Prepare a Novel Biological HKUST-1@CMCS with Macroscopic Shape Control for the Long-Acting and Sustained Release

Facile Method To Prepare a Novel Biological HKUST-1@CMCS with Macroscopic Shape Control for the Long-Acting and Sustained Release

TDI/TiO₂ Hybrid Networks for Superhydrophobic Coatings with Superior UV Durability and Cation Adsorption Functionality

Efficient adsorption of four phenolic compounds using a robust nanocomposite fabricated by confining 2D porous organic polymers in 3D anion exchangers

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Size-selective adsorption of methyl orange using a novel nano-composite by encapsulating HKUST-1 in hyper-crosslinked polystyrene networks

Cited by 48 publications

References 54 publications

Facile Method To Prepare a Novel Biological HKUST-1@CMCS with Macroscopic Shape Control for the Long-Acting and Sustained Release

Facile Method To Prepare a Novel Biological HKUST-1@CMCS with Macroscopic Shape Control for the Long-Acting and Sustained Release

TDI/TiO2 Hybrid Networks for Superhydrophobic Coatings with Superior UV Durability and Cation Adsorption Functionality

Efficient adsorption of four phenolic compounds using a robust nanocomposite fabricated by confining 2D porous organic polymers in 3D anion exchangers

Contact Info

Product

Resources

About

TDI/TiO₂ Hybrid Networks for Superhydrophobic Coatings with Superior UV Durability and Cation Adsorption Functionality