Decoration of worm-like Cu2S particles on CuCo2S4 micro-spheres: An effective strategy to improve the electromagnetic dissipation feature

In Situ Electrochemical Synthesis of Squamous-like Cu2S Induced by Sulfate-Reducing Bacteria as a Fenton-like Catalyst in Wastewater Treatment: Catalytic Performance and Mechanism

“…Squamous Cu 2 S corresponding to the SEM image could be clearly distinguished, and a lattice spacing of ~0.22 nm appeared, which was indexed to the (103) crystal plane of Cu 2 S and was also verified by selected area electron diffraction (SAED) characterization (Figure 3i). 4b, the peaks of Cu in high-resolution spectra appearing at a binding energy of 932.5 eV and 952.3 eV correspond to Cu + 2p3/2 and Cu + 2p1/2, respectively [20]. In addition, a satellite peak at ~943 eV was also found, illustrating the existence of Cu(I) on CSCM-SRB.…”

“…Thus, the presence of S(-II) on CSCM-SRB is confirmed, illustrating the stable existence of Cu 2 S on CSCM-SRB. 4b, the peaks of Cu in high-resolution spectra appearing at a binding energy of 932.5 eV and 952.3 eV correspond to Cu + 2p3/2 and Cu + 2p1/2, respectively [20]. In addition, a satellite peak at ~943 eV was also found, illustrating the existence of Cu(I) on CSCM-SRB.…”

“…Cu and S were assigned to electrolyzed copper sulfide, while C and O came from the protein adsorbed on the CSCM-SRB during the bacterial medium electrolysis. In Figure 4b, the peaks of Cu in high-resolution spectra appearing at a binding energy of 932.5 eV and 952.3 eV correspond to Cu + 2p3/2 and Cu + 2p1/2, respectively [20]. In addition, a satellite peak at ~943 eV was also found, illustrating the existence of Cu(I) on CSCM-SRB.…”

“…Currently, although Cu 2 S nanomaterials with various structures such as nanowires, nanosheets [15], nanorings [16], spherical nanoflowers [17,18], and hollow nanospheres [19] have been successfully prepared, the synthesizing methods mainly depend on gas-phase and liquid-phase methods. For example, Zhanguo Su et al used the hydrothermal method to calcinate thiourea and copper nitrate in a reactor at 230 • C for 72 h and then sintered them at 700 • C in a vacuum environment for 6 h to obtain wormlike Cu 2 S [20]. Siyuan Luo et al used the atmosphere method to introduce a mixture of pure H 2 S and O 2 into a sealed gas chamber containing copper foil and reacted them for more than 10 h to obtain a fluffy Cu 2 S film on the surface of the copper foil [21].…”