Eco-sustainable design of humic acids-doped ZnO nanoparticles for UVA/light photocatalytic degradation of LLDPE and PLA plastics

Effect of Degradation on the Physicochemical and Mechanical Properties of Extruded Films of Poly(lactic acid) and Chitosan

“…This behavior could be linked to the breakage of PLA chains, as proposed in the carbonyl index studies (Figure 6). 38,39 On the other hand, the thermogram corresponding to the Q1 film is presented in Figure 9b. In contrast to the pure PLA film, the Q1 film experienced a decrease in its thermal stability from the first 48 h of exposure, a trend that continued until 288 h (T6), where it exhibited the lowest inflection temperature with a value of 336.26 °C.…”

Biowaste valorization: multifunctional hybrid lignin/TiO2 nanostructures for bacterial-biocide disinfection and dye removal

“…Specifically, in view of their marked biocompatibility, tunable size, shape, and porosity as well as functional versatility, several inorganic nanoparticles represent valid candidates for the development of multifunctional nanomaterials with modulable properties. 18,19 Among them, titanium dioxide (TiO 2 ) is one of the most interesting, due to its availability and low toxicity; specifically, TiO 2 could interact with lignin through the formation of metalligand complexes, hydrogen bonding, electrostatic interactions, and van der Waals force, thus impacting the overall morphology and the activity of the final material. 20,21 For instance, TiO 2 -lignin hybrid nanomaterials have been previously developed as additives to enhance the mechanical and the functional properties of polymeric materials, 22,23 as metal ion adsorbers, 24 as antimicrobial or antioxidant agents, [25][26][27] as (photo)catalysts, [28][29][30] and as UV-protecting agents for cosmetic applications.…”

“…In this context, the ceramic templated approach has proven to be an extremely effective strategy to produce hybrid organoinorganic nanostructures, even enhancing the intrinsic properties of bioderived organic moieties, selectively driving its function. 19 Indeed, TiO 2 can be proposed as a biomimetic templating agent for controlling and modulating the stability and the reactivity of bulk lignin.…”

“…Specifically, in view of their marked biocompatibility, tunable size, shape, and porosity as well as functional versatility, several inorganic nanoparticles represent valid candidates for the development of multifunctional nanomaterials with modulable properties. 18,19 Among them, titanium dioxide (TiO 2 ) is one of the most interesting, due to its availability and low toxicity; specifically, TiO 2 could interact with lignin through the formation of metal–ligand complexes, hydrogen bonding, electrostatic interactions, and van der Waals force, thus impacting the overall morphology and the activity of the final material. 20,21…”

“…In this context, the ceramic templated approach has proven to be an extremely effective strategy to produce hybrid organo–inorganic nanostructures, even enhancing the intrinsic properties of bioderived organic moieties, selectively driving its function. 19…”