Facile fabrication of functional cellulose paper with high-capacity immobilization of Ag nanoparticles for catalytic applications for tannery wastewater

Abstract

It has been a research goal to develop macroscopic materials with an optimized surface structure to affix silver nanoparticles which could contaminate water and maximize their practical functions. Cellulose paper is a versatile biomass material valued for its abundance, low cost, biocompatibility, and natural composition. Until now, its potential application in water purification has not been adequately explored. In this study, gallic acid-modified silver nanoparticles (GA@AgNPs) were loaded onto commercial cellulose filter paper using a simple lipoic acid

Hierarchically Structured NH2‐MIL‐125/TiO2/Cellulose Composite Membranes With Enhanced Photocatalytic Performance

“…Figure 5a shows the photocatalytic degradation profiles of the NH 2 ‐MIL‐125/TiO 2 /cellulose, NH 2 ‐MIL‐125/cellulose and TiO 2 /cellulose composite membranes towards the photocatalytic degradation of RhB aqueous solution under UV light irradiation. Sample NH 2 ‐MIL‐125/cellulose‐A with the minimum NH 2 ‐MIL‐125 content shows a higher adsorption capacity than those of the other samples, due to the exposed pristine cellulose surfaces exhibit negative charges since a large number of −OH groups exist thereon, which adsorb more cationic dye molecules such as RhB by the electrostatic attractive interctions [42] . When the UV light is on, it is seen that, among all the NH 2 ‐MIL‐125/TiO 2 /cellulose composites, the NH 2 ‐MIL‐125/TiO 2 /cellulose‐B displays the highest removal percentage (95.37%) and the NH 2 ‐MIL‐125/TiO 2 /cellulose‐A shows the lowest (91.00%) within 100 min.…”

“…Sample NH 2 -MIL-125/cellulose-A with the minimum NH 2 -MIL-125 content shows a higher adsorption capacity than those of the other samples, due to the exposed pristine cellulose surfaces exhibit negative charges since a large number of À OH groups exist thereon, which adsorb more cationic dye molecules such as RhB by the electrostatic attractive interctions. [42] When the UV light is on, it is seen that, among all the NH 2 -MIL-125/TiO 2 /cellulose composites, the NH 2 -MIL-125/TiO 2 /cellulose-B displays the highest removal percentage (95.37%) and the NH 2 -MIL-125/TiO 2 /cellulose-A shows the lowest (91.00%) within 100 min. The photocatalytic performance is enhanced with the increment of the NH 2 -MIL-125 contents among the NH 2 -MIL-125/TiO 2 /cellulose composites; which is ascribed to the light absorption abilities and the separation efficiency of electronhole pairs are both increased.…”

Chestnut-Tannin-Crosslinked, Antibacterial, Antifreezing, Conductive Organohydrogel as a Strain Sensor for Motion Monitoring, Flexible Keyboards, and Velocity Monitoring

“…AgNPs feature efficient, broad-spectrum, and long-lasting antibacterial properties, making them widely used in antibacterial fields. , The antibacterial ability is an important guarantee for the long-term performance of hydrogel-based strain sensors in the daily environments. Here, the antibacterial activity of PCAAG organohydrogel was measured against E.…”

Robust Solvatochromic Gels for Self‐defensive Smart Windows

“…Cellulose is a typical polysaccharide biomacromolecule that widely exists in plants. Compared with other biomaterials such as silk fibroin, chitosan, and guar gum, cellulose is more inexpensive, readily available, ease of processing, and shows its attractive advantages in fabricating functional materials, [ 15–17 ] including light‐modulating nanocrystalline fibers, weathering‐resistant hydrogels, and antifreeze gels film for smart windows. [ 18–21 ] But the deficiencies in response time (over 60 s) and cycling performance (less than 10 times) still remain.…”