Organic-free synthesis of porous CdS sheets with controlled windows size on bacterial cellulose for photocatalytic degradation and H2 production

Cation exchange synthesis of porous Cd1‐xZnxS twinned nanosheets for visible light highly active H2 evolution

“…51 The porous twinned structures have two functions: to enhance the light-absorption efficiency and the charge carriers' transfer rate and to afford sufficient transport routes to reagent and product molecules, which could dramatically improve the photocatalytic hydrogen evolution efficiency. 52,53 In order to verify the durability and recovery performance of porous Cd 0.5 Zn 0.5 S twinned nanosheets, the photocatalytic activity of Cd 0.5 Zn 0.5 S was studied under 16 h of visible light irradiation (Figure 9B). Obviously, it can be seen that after four cycles, the photocatalytic activity of porous Cd 0.5 Zn 0.5 S twinned phase junction nanosheets do not decrease significantly, indicating that porous Cd 0.5 Zn 0.5 S twinned nanosheets have good optical stability which is further confirmed by the XRD patterns and XPS spectra of porous Cd 0.5 Zn 0.5 S twinned nanosheets Cd 0.5 Zn 0.5 S before and after photocatalytic reactions (Figure S3).…”

“…Porous Cd 0.5 Zn 0.5 S twinned phase junction nanosheets have better photocatalytic hydrogen production performance due to their excellent energy band structure, remarkable charge mobility, and abundant active centers 51 . The porous twinned structures have two functions: to enhance the light‐absorption efficiency and the charge carriers' transfer rate and to afford sufficient transport routes to reagent and product molecules, which could dramatically improve the photocatalytic hydrogen evolution efficiency 52,53 . In order to verify the durability and recovery performance of porous Cd 0.5 Zn 0.5 S twinned nanosheets, the photocatalytic activity of Cd 0.5 Zn 0.5 S was studied under 16 h of visible light irradiation (Figure 9B).…”

Natural Cellulose Substance Based Energy Materials

“…The cellulose fibers of the natural cellulose substance was also applied as the mechanical scaffold for the growth of the active photocatalytic components, which promoted the structural stabilities of the obtained materials [71] . For instance, the bacterial‐cellulose@CdS (BC@CdS) composite was fabricated by employing the bacterial cellulose fibers as the cellulose scaffold, which was beneficial to the absorption of the cadmium precursor and further the uniform development of the CdS component due to the abundant hydroxy and carboxyl groups on the cellulose fiber surfaces [72] . The BC@CdS composites displayed unique three‐dimensionally porous network structures, and various contents of CdS nanosheets (sizes: ca .…”

An Overview of Bacterial Cellulose in Flexible Electrochemical Energy Storage

“…[17] These unique structuralf eatures and remarkable physicalp roperties afford BC more flexibility when used in functional materialss ynthesis. [18] With furtherr esearch into BC and its physical and chemical properties, BC-based materials have been applieds uccessfully in many prospective areas, such as paper manufacturing, [19] filters, [20] pharmaceuticals, [21] food, [22] photocatalysis, [23] and biosensors [24] (Figure 1). There is growingdemand for the development of al arge-scale and semi-continuous strategy to meet the increasing commercialn eeds.…”

“…With further research into BC and its physical and chemical properties, BC‐based materials have been applied successfully in many prospective areas, such as paper manufacturing, filters, pharmaceuticals, food, photocatalysis, and biosensors (Figure ). There is growing demand for the development of a large‐scale and semi‐continuous strategy to meet the increasing commercial needs.…”