Bio-alcohol induced self-assembly of heterojunctioned TiO₂/WO₃ composites into a hierarchical yolk–shell structure for photocatalysis

Abstract

In the fabrication of efficient multicomponent semiconductors for photocatalysis, well-defined hierarchical structures and high-quality heterojunctions are still highly desired. A general preparation method was developed for a series of hierarchical...

Efficient photodegradation of polystyrene microplastics integrated with hydrogen evolution: Uncovering degradation pathways

“…The core-shell structured TiO 2 was prepared using a modified alcoholysis method reported in our previous work. 23 Briefly, 10 mL of glycerol (Aladdin, AR) and 20 mL of ethanol (EtOH; Aladdin, AR) were mixed at 25 ± 0.5 °C, and then 10 mL of ether (Guangzhou, AR) were added dropwise into the solution. After stirring for 10 min, 1 mL of TiOSO 4 (Sigma-aldrich, ∼15 wt % in dilute sulfuric acid) was carefully dropped into the solution and the mixture was stirred for 30 min.…”

“… 22 Our group previously demonstrated that TiO 2 with a core-shell structure was efficient in light harvesting, which facilitated photoelectron-hole separation. 23 However, the fact that TiO 2 can only be stimulated by UV light because of the broad forbidden band (3.2 eV) limits its application in photocatalysis. 24 Meanwhile, it is well known that hydrogen (H 2 ) is a valuable product that can be used in agricultural, pharmaceutical, chemical, and renewable energy applications.…”

Harnessing photosynthetic microorganisms for enhanced bioremediation of microplastics: A comprehensive review

“…Photocatalysis has long been considered for approaches regarding sustainability, such as micropollutant degradation, CO 2 reduction, and H 2 evolution reaction [ [169] , [170] , [171] ]. The main difference between MPs photocatalytic degradation and photolysis concerns the input of photocatalysts.…”

Development of dual-functional catalysis for hydrazine oxidation by an organic p–n bilayer through in situ formation of a silver co-catalyst

“… 6–10 Among the photocatalysts, TiO 2 is recognized to be practically used in the degradation of several types of pollutant. 11–15 However, the degrading targets are limited to only substances of low concentrations because of the ultraviolet (UV) response of TiO 2 . Moreover, the catalytic degradation of pollutants by TiO 2 is expected to occur only under UV irradiation; in other words, TiO 2 can never exhibit a catalytic performance for degradation in the dark similar to that under irradiation.…”