2018年7月31日 · In this paper, we have developed an effective and facile method for the preparation of magnetic MMT nanocomposite by using surface modification, which caused the magnetic MMT to be stable and have high magnetism. APTES, hydrolyzed into trihydroxyl groups, was used to modify both MMT and Fe3 O 4 via silanization.

2024年10月5日 · In this work, CNTs/MMT/PPS composite coatings were prepared by spraying method by treating MMT with organosilane APTES and mixing it with carboxylated carbon nanotubes (O-CNTs) and PPS. A series of characterizations such as X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectrometry and thermogravimetric analysis (TGA) were ...

In summary, XRD of both dispersions and solid samples agrees with the EDX and XPS analyses: metallic material could only be identified in Ag_MMT (together with a minor second Ag(NO3) phase),...

2022年2月1日 · Overall, the XPS analyses suggest that the hydroxyl groups of the BPA and BPS molecules play a crucial and dominant role in BPA and BPS adsorption onto the MMT, and the Ca atoms and the oxygen atoms in the SiO 4 tetrahedra …

The H-MMT/MOF-5 and H-MMT/MOF-199 composites based on a clay mineral H-MMT with greater specific surface area and reactive -OH groups are effective materials for developing low-cost and ...

2024年11月25日 · The coating of APP/MMT/APTES on the polyurethane sample surface has been verified from XPS and FTIR analysis. In comparison to untreated polyurethane, the amount of char residue after combustion of the flame-retardant polyurethane increases significantly, with a 50.8% increase in limiting oxygen index (LOI).

2020年11月19日 · XPS results of PU/MMT nanocomposites showed that the atomic ratio of silicon to aluminum was increased along with the increasing proportion of MMT. At the same time, the XPS spectra showed indicated that for the proportion of Si 2p and Al 2p contents in 4wt% PU/MMT film was not changed.

Ul-Islam et al. synthesized BC-MMT composite films containing pure MMT and Na-, Ca-or Cu-modified MMT using an exsitu impregnation method and determined their antimicrobial activities for...

5 天之前 · The Bi3O4Br/MMT composites demonstrated a remarkable degradation efficiency of nearly 90% for 2-MBT within just 3 min of visible-light irradiation, surpassing 99% after 7 min, along with exceptional cycling stability and structural integrity. ... Furthermore, XPS spectra of Bi 3 O 4 Br/MMT(10%) samples were utilized to exhibit the chemical ...

使用X射线衍射 (XRD)分析、N2吸附-脱附、NH3-TPD、H2-TPR和X射线光电子能谱 (XPS)分析等手段对其表征，研究了不同氧化物柱撑对双功能催化剂 (Cu-Co/X-MMT)性能的影响。 结果表明，与钠基蒙脱土相比，氧化物柱撑蒙脱土的结构和酸性均发生了明显的变化，变化的程度与氧化物的种类密切相关。 不同氧化物柱撑影响铜颗粒的大小和还原程度，进而影响双功能催化剂的二甲醚水蒸气重整反应 (SRD)性能。 Cu-Co/SiO2-MMT催化剂具有较好的SRD性能，在0.1 MPa …