Titanium dioxide incorporated in cellulose nanofibers with enhanced UV blocking performance by eliminating ROS generation

Abstract

The preparation of sunblocks with dispersion stability, ultraviolet blocking, and photocompatibility remains a considerable challenge.

Photocatalytic Drug Degradation and Supercapacitor Applications of FeVO4 and rGO‐FeVO4 Nanocomposite

“…With the presence of the rGO‐FeVO 4 composite, the absorption intensity of MB dye was progressively diminished after exposing to the visible light and the corresponding results are shown in Figure S1(b). The MB dye degradation (%) were calculated by means of following equation; Degradation efficiency (%)=$${{{{C}_{o}-{C}_{t}}\over{{C}_{o}}}\times 100}$$ , wherein the C o and C t are the initial and time dependent concentrations which have been assessed from the absorbance spectrums [52,53] . Only ~8 % MB dye has been degraded in the presence of FeVO 4 in 60 min and ~32 % MB dye was degraded with rGO‐FeVO 4 composite in 45 min, respectively and the results are shown in Figure S1(c).…”

“…Even after 40 min, the reaction was stopped using FeVO 4 under visible light. With the presence of the rGO-FeVO 4 composite, the absorption intensity of MB dye was [52,53] Only ~8 % MB dye has been degraded in the presence of FeVO 4 in 60 min and ~32 % MB dye was degraded with rGO-FeVO 4 composite in 45 min, respectively and the results are shown in Figure S1(c). A comparative table with existing literature is given in supporting information Table S1.…”

Nanofibrilation of alkali-pretreated cellulose fiber using grinding treatment

“…This suggests that the UV transmittance decreases as the nano ber content increases. Particularly, the transmittance of ultraviolet A (UVA, 320-400 nm) and ultraviolet B (UVB, 280-320 nm) decreased, which may be owing to the scattering and absorption of UV by nanoparticles (Rabani et al 2022). The alkalipretreated pulp contained more nano bers than the untreated pulp, and the turbidity also increased to 22.37 and 31.60 NTU following 1 h and 2 h of alkali pretreatments, respectively, and 80 counts of grinder treatment.…”

Proceeding of catalytic water splitting on Cu/Ce@g-C3N4 photocatalysts: an exceptional approach for sunlight-driven hydrogen generation

“…10–12 Various semiconductors such as TiO 2 , 13,14 Ta 2 O 5 , 15 Zn 3 V 2 O 8 , 16 CdS, 17 CdSe, 18 CeVO 4 19 and CdZnS 20 have been extensively utilized for photocatalytic hydrogen evolution via water splitting. However, these materials have limitations; for example, TiO 2 works only under UV light due to its 3.0–3.2 eV band gap, 21 while metal sulphides are unstable due to photocorrosion. 22 Graphitic carbon nitride (g-C 3 N 4 ) has garnered significant attention due to its appealing characteristics, which include a moderate band gap, high thermal stability and a large surface area.…”