Preparation and XPS studies of macromolecule mixed-valent Cu(I, II) and Fe(II, III) complexes

Wang, Bo; Gao, Fengqin; Ma, Hongzhu

doi:10.1016/j.jhazmat.2006.10.043

Cited by 31 publications

(16 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For PPy@MIL-53, there was only one peak at 711.8 eV in the XPS spectrum of Fe 2p 3/2 , indicating that Fe 2+ was the dominant valence state (Figure 2D). 36 These data illustrated that the Fe 3+ in MIL-53 was reduced to Fe 2+ in PPy@MIL-53, ensuring the successful oxidation of Py to PPy NPs.…”

Section: Resultsmentioning

confidence: 83%

“…The peaks at 712.5 and 711.1 eV were due to Fe 3+ and Fe 2+ , respectively (Figure C), and the ratio of Fe 3+ to Fe 2+ was calculated to be 3:2 by their peak areas. For PPy@MIL-53, there was only one peak at 711.8 eV in the XPS spectrum of Fe 2p 3/2 , indicating that Fe 2+ was the dominant valence state (Figure D) . These data illustrated that the Fe 3+ in MIL-53 was reduced to Fe 2+ in PPy@MIL-53, ensuring the successful oxidation of Py to PPy NPs.…”

Section: Resultsmentioning

confidence: 88%

See 1 more Smart Citation

Metal–Organic Framework as a Microreactor for in Situ Fabrication of Multifunctional Nanocomposites for Photothermal–Chemotherapy of Tumors in Vivo

Huang

Zhang

et al. 2018

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Metal–organic frameworks (MOFs) have been applied in chemotherapeutic drug loading for cancer treatment, but challenging for cases with large and malignant lesions. To overcome these difficulties, combinational therapies of chemotherapy and photothermal therapy (PTT) with potentially high selectivity and slight aggressiveness have drawn tremendous attention to treat various tumors. However, current MOF-based nanohybrids with photothermal agents involve tedious synthesis processes and heterogeneous structures. Herein, we employ MIL-53 as a microreactor to grow polypyrrole (PPy) nanoparticles in situ for the fabrication of PPy@MIL-53 nanocomposites. Fe3+ in MIL-53, as an intrinsic oxidizing agent, can oxidize the pyrrole monomer to generate PPy nanoparticles. The prepared PPy@MIL-53 nanocomposites integrate the intrinsic advantages of MOFs with high drug loading ability and magnetic resonance imaging (MRI) capacity, and PPy nanoparticles with outstanding PTT ability and excellent biocompatibility. The versatile PPy@MIL-53 nanocomposites with multiple functions displayed in vitro and in vivo synergism of photothermal–chemotherapy for cancer, potentially MRI-guided. The proposed MOF microreactor-based synthesis strategy shows a promising prospect in the fabrication of diverse multifunctional nanohybrids for tumor theranostics in vivo.

show abstract

Section: Resultsmentioning

confidence: 83%

Section: Resultsmentioning

confidence: 88%

Metal–Organic Framework as a Microreactor for in Situ Fabrication of Multifunctional Nanocomposites for Photothermal–Chemotherapy of Tumors in Vivo

Huang

Zhang

et al. 2018

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…This value is normally ascribed to amines or amides. According to the literature data, amine species correspond to peak components with BE at 400.2, 399.7 or 400.5 eV, while values of about 399.9 and 399 eV can be identified as amide species [ 32 , 33 ]. The high resolution O 1s spectra of OCNT and ACNT are illustrated in Figure 4 .…”

Section: Resultsmentioning

confidence: 99%

Study of the Interaction of an Iron Phthalocyanine Complex over Surface Modified Carbon Nanotubes

et al. 2021

View full text Add to dashboard Cite

Carbon nanotubes (CNT) were prepared by a modified chemical vapor deposition (CVD) method. The synthesized carbon materials were treated with acidic and basic solutions in order to introduce certain surface functional groups, mainly containing oxygen (OCNT) or amine (ACNT) species. These modified CNTs (OCNT and ACNT) as well as the originally prepared CNT were reacted with a non-ionic Fe complex, Iron (II) Phthalocyanine, and three composites were obtained. The amount of metal complex introduced in each case and the interaction between the complex and the CNT materials were studied with the aid of various characterization techniques such as TGA, XRD, and XPS. The results obtained in these experiments all indicated that the interaction between the complex and the CNT was greatly affected by the functionalization of the latter.

show abstract

“…2 of Fe(II)−O, respectively 38. Two weak peaks at ∼702.9 and ∼718.0 eV are reasonably attributed to the presence of elemental Fe(0) species owing to the partial reduction by the carbon source from the TPO 3− linker.…”

mentioning

confidence: 80%

Morphologically Controlled Metal–Organic Framework-Derived FeNi Oxides for Efficient Water Oxidation

Huang

Xue

et al. 2022

Inorg. Chem.

View full text Add to dashboard Cite

The complex oxygen evolution reaction (OER) is recognized as the most studied and explored electrochemical conversion, which plays a crucial role in energy-related applications. In this work, a series of metal−organic framework (MOF)derived FeNi oxides from a barrel-shaped Ni-based BMM-10 precursor are conveniently obtained to show an excellent OER performance. Under mild Fe(III) etching, a type of core−shell Fe 0.5 -BMM-10 can be well preserved and the coordination bond of the middle frame structure is decomposed. Furthermore, the Fe x -BMM-10-T series is successfully synthesized with a well-preserved morphology compared to precursors after direct oxidation. Finally, followed by initial electrochemical activation, the decomposition of FeNi oxides generates active Fe-doped nickel oxyhydroxides for efficient water oxidation. The improved OER performance stems from the high specific surface area and abundant exposed active centers, as well as the significant synergistic effect between iron and nickel, which is further verified by the theoretical calculation. This approach can be extended to precisely adjust the morphology of MOFs and their derivatives that can result in superior electrocatalytic properties in terms of energy conversion and storage applications.

show abstract

Preparation and XPS studies of macromolecule mixed-valent Cu(I, II) and Fe(II, III) complexes

Cited by 31 publications

References 19 publications

Metal–Organic Framework as a Microreactor for in Situ Fabrication of Multifunctional Nanocomposites for Photothermal–Chemotherapy of Tumors in Vivo

Metal–Organic Framework as a Microreactor for in Situ Fabrication of Multifunctional Nanocomposites for Photothermal–Chemotherapy of Tumors in Vivo

Study of the Interaction of an Iron Phthalocyanine Complex over Surface Modified Carbon Nanotubes

Morphologically Controlled Metal–Organic Framework-Derived FeNi Oxides for Efficient Water Oxidation

Contact Info

Product

Resources

About