Silk cocoon derived carbon and sulfur nanosheets as cathode material for Li-S battery application

Shaping Sulfur Precursors to Low Dimensional (0D, 1D and 2D) Sulfur Nanomaterials: Synthesis, Characterization, Mechanism, Functionalization, and Applications

“…For instance, treating the sodium thiosulfate (Na 2 SO 3 ) and concentrated hydrochloric acid suspension in a microwave oven at 200 °C for 20 min could realize the accomplishment of SNSs with lateral sizes ranging from 100 to 500 nm. [78] With the assistance of ultrasonic exfoliation method, sulfur powder suspended in the liquid phase system containing bovine serum albumin (BSA) even produces an ideal structure of SNSs. As shown in Figure 8d, sulfur powder and BSA aqueous solution were sonicated for 72 h, followed by centrifugation to collect the supernatant as SNSs.…”

“…For instance, treating the sodium thiosulfate (Na 2 SO 3 ) and concentrated hydrochloric acid suspension in a microwave oven at 200 °C for 20 min could realize the accomplishment of SNSs with lateral sizes ranging from 100 to 500 nm. [ 78 ]…”

“…The cathode demonstrated excellent cyclic performance with a charge capacity of 640 mAh g −1 after 500 cycles at a current density of 1 A g −1 . Besides, based on a simple melt‐diffusion process, [ 78 ] SNSs anchored on the silk fibers was successfully fabricated and utilized as a cathode material in Li‐S batteries, the specific capacity was increased due to the presence of soluble polysulfides intermediates. The resulted sulfur‐carbonized silk fibers exhibit a high initial capacity of 1231 mAh g −1 at 0.05 C and retain a high capacity of ≈997 mAh g −1 with a coulombic efficiency of nearly 99%.…”

Photocatalytic Degradation of Rhodamine B Dye by Nanocomposites: A Review

“…A variety of possible photo-sensitive nano-semiconductor metal halide/oxides/sulphide, such as TiO2, ZnO, CuO, BiFeO3 and Carbon-based nanostructures have been produced and employed as photocatalysts for water purification, thanks to rapid advances in nanotechnology [11]. This innovative interdisciplinary branch of science and technology leads to the formation of different morphologies like nanoparticles [12-16][17], nanotubes [18,19], nanorods [20,21], nanocubes [22] and nanosheets [23] by using numerous advanced methods such as hydrothermal, solvothermal, sol-gel, microwave, co-precipitation methods [24] with different applications in many fields such as from basic chemistry [25][26][27][28], physics [29][30][31] to the advanced electronics [32][33][34][35][36], nanotechnology [37][38][39][40][41], biotechnology [42][43][44][45][46][47] by altering the properties like mechanical [17,48] physical [49][50][51] and magnetic [52,53] so they come up with an ideal of environmental friendly [54], with a motto of decreasing the pollutions [55,…”