Synthesis of Cu2S Ultrasmall Nanoparticles in Zeolite 4A Nanoreactor

Structural Analysis of Cu+ and Cu2+ Ions in Zeolite as a Nanoreactor with Antibacterial Applications

“…Figure 2 shows the FT-IR spectra of Z4A, Z4A-Cu0.03, and Z4A-Cu0.1. Figure 2a shows the band at 1000 cm 8,42,43 Similarly, in all spectra. Figure 2b shows the 666 cm −1 regions; in each spectrum (Z4A-Cu0.03 and Z4A-Cu0.1 regarding Z4A), novel bands can be observed in the range 675−780 cm −1 .…”

“…The peak at 666 cm –1 represents the Si–O–Al asymmetric stretching vibrational bond. The band at 554 cm –1 corresponds to the Si–O–Si and O–Si–O symmetrical stretching vibration bonds, attributed to the secondary structure (D4R); the bands at 1656 and 3436 cm –1 are assigned to the −OH vibrational stretching mode bonds of the water adsorbed on the zeolite. ,, Similarly, in all spectra. Figure b shows the 666 cm –1 regions; in each spectrum (Z4A-Cu0.03 and Z4A-Cu0.1 regarding Z4A), novel bands can be observed in the range 675–780 cm –1 .…”

“…Compared to natural zeolites, synthetic zeolites like A, X, ZSM-5, Y, P, and Na-P1 offer significant benefits due to their wider range of industrial applications. These include serving as cation exchangers, catalytic supports, selective adsorbents, and catalysts. − Due to their ability to facilitate chemical reactions in a controlled environment, zeolites fulfill the criteria to be classified as nanoreactors. , Moreover, the zeolite nanoreactor has the potential to generate a distinct and exclusive chemical environment by isolating compounds and influencing the reaction within the nanoreactor . It can also be utilized to facilitate the creation of uniformly sized nanoparticles and prevent undesirable nanoparticles from sintering .…”

“… 1 − 6 Due to their ability to facilitate chemical reactions in a controlled environment, zeolites fulfill the criteria to be classified as nanoreactors. 7 , 8 Moreover, the zeolite nanoreactor has the potential to generate a distinct and exclusive chemical environment by isolating compounds and influencing the reaction within the nanoreactor. 9 It can also be utilized to facilitate the creation of uniformly sized nanoparticles and prevent undesirable nanoparticles from sintering.…”

Controlled Growth Cu2S Nanoarrays with High-Performance Photothermal Properties

“…It has been found that the morphology of Cu 2 S can be directly controlled to satisfy the demands of different functions. For example, Cu 2 S with various morphologies has been reported, such as nanoparticles [ 22 ], nanosheets [ 23 ], hollow cage structures [ 24 ] and thin films [ 25 ]. Among them, Cu 2 S nanoparticles, which can be modified in size and morphology, show high photothermal conversion ability in the NIR region [ 26 ].…”