Synthesis and characterization of CuS nanostructures: Structural, optical, electrochemical and photocatalytic activity by the hydro/solvothermal process

Strategies to modify the structure of thin‐film composite membranes for advanced separation of metronidazole antibiotic from wastewater

“…43 The peak seen at 612 cm À1 represents Cu-S functional group, and confirms the presence of CuS nanoparticles in the membrane structure. 45 Based on the FTIR spectra presented in Figure 7C, the peak shown at 2910 cm À1 is associated to O-H functional group in the carboxylic acid. The peaks indicated at 1676 and 1535 cm À1 are related to asymmetric and symmetric COO À carboxylate, suggesting the presence of carboxylic acid within the membrane structure.…”

“…44 Here, the 153, 71, 228, and 3 cm À1 shifts of the asymmetric and symmetric stretching of COO À carboxylate, etheric C-O, and (S=O) functional groups respectively in relation to the relevant peak in raw membrane suggest interaction between the nanoparticles and PSf surface. 43 The peak observed at 647 cm À1 is related to Cu-S functional group, confirming the presence of nanoparticles in the membrane structure. 46 As observed, the peaks corresponding to the carboxylic acid chains (C-O, C=O and O-H) are observable in the CuS@AA 5 T 3 M 3 spectra, suggesting the presence of acrylic acid on the surface of nanoparticles.…”

“…The diagram related to Cu 0 T 3 M 3 membrane sample (Figure 7A) shows five peaks: one at 1720 cm −1 associated with C=O functional group of carboxylic acid 41 ; two at 1464 and 1523 cm −1 related to symmetric and asymmetric stretching of carboxylate functional group (COO − ), confirming presence of PAA coating on the membrane surface 42 ; one at 1272 cm −1 related to the stretching of etheric C‐O functional group in PSf 43 ; and finally one at 1355 cm −1 assigned to sulfone functional group (S=O) 44…”

Fabrication of multifunctional triple-responsive platform based on CuS-capped periodic mesoporous organosilica nanoparticles for chemo-photothermal therapy

“…Meanwhile, XRD pattern shows that the crystal structure of CuS-Lys belongs to the covellite phase with the existence of strong characteristic (101), (102), (103), (110), and (202) peaks ( Figure 3D). 38,39 After the resultant YSPMOs-SS-NH 2 NPs were loaded with DOX, the CuS NPs as the "gatekeeper" capped on pore outlets through the formation of an amide covalent bond between L-cysteine and YSPMOs-SS-NH 2 , finally resulting in CuS-gated NPs (YSPMOs(DOX)@CuS). FT-IR spectrum of YSPMOs(DOX)@CuS showed a band of amide at around 1,762 cm −1 (Figure 3A), which further confirmed that the CuS-Lys NPs were successfully conjugated on the YSPMOs-DOX.…”

Interface enriched highly interlaced layered MoS2/NiS2 nanocomposites for the photocatalytic degradation of rhodamine B dye

“…Various semiconducting metal suldes such as MoS 2 , ZnS, CdS and CuS have been examined to degrade the pollutants using solar energy. [2][3][4][5][6] It mainly depends on several factors such as photon absorption ability, separation of ions, and transport rate of the photogenerated electrons and holes in the presence of light energy. Unique properties of MoS 2 such as tunable bandgap, reliability, low cost, thermal stability, excellent electronic 7,8 and optical properties which severs as potential material for photocatalysis, biosensors, memory, capacitors and other electronic devices.…”