Modified UiO-66 frameworks with methylthio, thiol and sulfonic acid function groups: The structure and visible-light-driven photocatalytic property study

Chen, Tengfei; Han, Song; Wang, Zhipeng; Gao, Hui; Wang, Lin-Yang; Deng, Yu‐Heng; Wan, Chong‐Qing; Tian, Yang; Wang, Qiang; Guo, Weihua; Li, Guisheng

doi:10.1016/j.apcatb.2019.118047

Cited by 67 publications

(57 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The fingerprint region 745 cm −1 is the out-of-plane bending vibration of C-H; an absorption peak can be seen at 554 cm −1 , which is the Zr-O bond stretching vibration peak in the metal–organic skeleton. In the IR curve of UIO-66-SO 3 H, 1,283 cm −1 and 1,090 cm −1 belong to the O=S=O symmetric stretching vibration peak and S-O stretching vibration peak, respectively; 628 cm −1 is the stretching vibration peak of the C-S bond ( Chen T.-F. et al, 2019 ). Thus, the presence of sulfonic acid groups in the UIO-66-SO 3 H catalyst was confirmed, indicating the successful preparation of sulfonic acid-functionalized materials.…”

Section: Resultsmentioning

confidence: 99%

Highly Efficient One-Step Conversion of Fructose to Biofuel 5-Ethoxymethylfurfural Using a UIO-66-SO3H Catalyst

et al. 2022

View full text Add to dashboard Cite

In this study, a novel sulfonic acid-modified catalyst for MOFs (UIO-66-SO3H) was synthesized using chlorosulfonic acid as a sulfonating reagent and first used as efficient heterogeneous catalysts for the one-pot conversion of fructose into biofuel 5-ethoxymethylfurfural (EMF) in a cosolvent free system. The physicochemical properties of this catalyst were characterized by Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), and powder X-ray diffraction (XRD). The characterization demonstrated that the sulfonic acid group was successfully grafted onto the MOF material and did not cause significant changes to its morphology and structure. Furthermore, the effects of catalyst acid amount, reaction temperature, reaction time, and catalyst dosage on reaction results were investigated. The results showed that the conversion of fructose was 99.7% within 1 h at 140°C, while the EMF yield reached 80.4%. This work provides a viable strategy by application of sulfonic acid-based MOFs for the efficient synthesis of potential liquid fuel EMF from renewable biomass.

show abstract

Section: Resultsmentioning

confidence: 99%

Highly Efficient One-Step Conversion of Fructose to Biofuel 5-Ethoxymethylfurfural Using a UIO-66-SO3H Catalyst

et al. 2022

View full text Add to dashboard Cite

show abstract

“…2 a). Amino function can be detected by the H–N–H scissoring, C-NH 2 stretching, N–H symmetric and asymmetric stretching vibrations at 1260 cm −1 , 1656 cm −1 , 3381 cm −1 and 3503 cm −1 respectively 20 , 26 . In the synthesis of UiO-66-biguanidine, the UiO-66-NH 2 reacts with cyano guanidine and the change in bonding can be evidenced from FT-IR spectrum.…”

Section: Resultsmentioning

confidence: 99%

Pd immobilization biguanidine modified Zr-UiO-66 MOF as a reusable heterogeneous catalyst in Suzuki–Miyaura coupling

Veisi

Abrifam

Kamangar

et al. 2021

Sci Rep

View full text Add to dashboard Cite

In recent days, nanohybrid metal organic frameworks (MOF) have been considered as next generation catalysts due to their unique features like large surface to volume ratio, tailorable geometry, uniform pore sizes and homogeneous distribution of active sites. In this report, we address the biguanidine modified 3D Zr-centred MOF UiO-66-NH2 following a post synthetic modification approach. Utilizing the excellent chelating ability of biguanidine, Pd ions are immobilized over the host matrix MOF. The as-synthesized material was physicochemically characterized using a broad range of analytical techniques like FT-IR, electron microscopy, EDS, elemental mapping, XRD and ICP-OES. Subsequently the material has been catalytically employed in the classical Suzuki–Miyaura coupling towards the synthesis of diverse biphenyl derivatives at sustainable conditions. There are very few reports on the covalently modified MOFs towards the organic coupling reactions. The catalyst has been isolated by centrifugation and recycled in 9 consecutive runs with almost insignificant leaching and minute decrease in reactivity.

show abstract

“…There was also the aromatic–aromatic interaction of π–π stacking between the organic ligands of UiO-66 and benzene rings in the DA . As shown in Figure a, DA molecules were adsorbed onto the UiO-66 and acted as electron-transfer mediators to transfer the electrons from DA to the conduction band of UiO-66. − Although the UiO-66 almost has no obvious vis absorption, it exhibits as the n-type semiconductor . Therefore, under the vis irradiation, transferred photogenerated electrons from DA could reduce the surface oxygen to O 2 •– . − In the following process, the generated ROS may, as an oxidant, trigger the DA polymerization at pH = 7, which would in turn facilitate the UiO-66 assembly on the filter paper.…”

Section: Results and Discussionmentioning

confidence: 99%

Formation and Antibacterial Performance of Metal–Organic Framework Films via Dopamine-Mediated Fast Assembly under Visible Light

Hao

Jiang

et al. 2020

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Metal–organic frameworks (MOFs) have recently attracted intensive interest toward a variety of potential applications due to their very high porosity. However, the preparation of MOF films is tedious and involves complicated procedures. Herein, we report a simple and widely applicable strategy to fabricate uniform MOF layers on desired substrates via dopamine (DA) codeposition from neutral (pH = 7) aqueous MOF particle dispersions mediated by visible light (vis). Uniquely, DA and MOF at pH 7 under vis illumination created a synergistic condition, leading to the formation of a uniform and stable MOF layer, which otherwise appeared to be difficult to obtain. The zirconium-based MOF particle, UiO-66, played an important role in helping generate a suitable amount of reactive oxygen species under vis to promote DA polymerization, which in turn significantly facilitated the MOF film formation. By introducing rose bengal into the MOF film, excellent photodynamic antibacterial activities against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli were achieved. Overall, this study provides a straightforward strategy in preparing MOF thin films on desired substrates, which may help expand the application of functionalized MOFs.

show abstract

Modified UiO-66 frameworks with methylthio, thiol and sulfonic acid function groups: The structure and visible-light-driven photocatalytic property study

Cited by 67 publications

References 54 publications

Highly Efficient One-Step Conversion of Fructose to Biofuel 5-Ethoxymethylfurfural Using a UIO-66-SO3H Catalyst

Highly Efficient One-Step Conversion of Fructose to Biofuel 5-Ethoxymethylfurfural Using a UIO-66-SO3H Catalyst

Pd immobilization biguanidine modified Zr-UiO-66 MOF as a reusable heterogeneous catalyst in Suzuki–Miyaura coupling

Formation and Antibacterial Performance of Metal–Organic Framework Films via Dopamine-Mediated Fast Assembly under Visible Light

Contact Info

Product

Resources

About