Design of self-cleaning and self-disinfecting paper-shaped photocatalysts based on wood and eucalyptus derived cellulose fibers modified with gCN/Ag nanoparticles

Maślana, Klaudia; Kędzierski, Tomasz; Żywicka, Anna; Zielińska, Beata; Mijowska, Ewa

doi:10.1016/j.enmm.2022.100656

Cited by 6 publications

(6 citation statements)

References 43 publications

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“…An illustrative example of employing unconventional materials for g-C 3 N 4 immobilization is demonstrated by Maślana et al [123], in which an innovative method to fabricate resembling paper by the addition of g-C 3 N 4 with silver nanoparticles into pulp cellulose paper fibers is presented. These fibers were manufactured using the Rapid-Köthen automatic sheet forming machine [123].…”

Section: Future Horizons In the Immobilization Of G-c 3 Nmentioning

confidence: 99%

Pushing the Operational Barriers for g-C3N4: A Comprehensive Review of Cutting-Edge Immobilization Strategies

Fdez-Sanromán,

Pazos,

Rosales

et al. 2024

Catalysts

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This comprehensive review explores recent advancements in immobilization strategies for graphitic carbon nitride (g-C3N4), a metal-free photocatalyst that has gained significant attention for its optical and physicochemical properties comparable to traditional photocatalysts like TiO2. However, a critical challenge regarding their application has emerged from the difficulty of its recovery due to its powdery nature. Therefore, several alternatives are being explored to immobilize this material, facilitating its recovery and reuse. This review systematically categorizes various physical and chemical immobilization techniques, providing an in-depth analysis of their advantages, drawbacks, and applications. Techniques such as encapsulation, electrospinning, casting, and coating, along with their adaptations for g-C3N4, are thoroughly examined. Additionally, the impact of these strategies on enhancing the photocatalytic efficiency and operational stability of g-C3N4, particularly in environmental applications, is also assessed. Thus, this review aims to provide valuable insights and guide future research in the realms of photocatalysis and environmental remediation. The review contributes to the understanding of how immobilization strategies can optimize the performance of g-C3N4, furthering its potential applications in sustainable and efficient environmental solutions.

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Section: Future Horizons In the Immobilization Of G-c 3 Nmentioning

confidence: 99%

Pushing the Operational Barriers for g-C3N4: A Comprehensive Review of Cutting-Edge Immobilization Strategies

Fdez-Sanromán,

Pazos,

Rosales

et al. 2024

Catalysts

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“…These include the degradation of antibiotics, [14,[65][66][67][68] the removal of heavy metal ions, [14,69] indoor air purification, [15,70,71] and microbial disinfection. [72][73][74][75]…”

Section: Current Developmentmentioning

confidence: 99%

“…Maślana et al designed photocatalytic self‐disinfection papers composed of cellulose fibers modified with g‐C 3 N 4 photocatalysts and Ag particles. [ 72 ] In this study, the antiviral activity was evaluated by using Φ6 phage virus as SARS‐CoV‐2 mimics. The fabricated papers not only exhibited a photocatalytic effect to degrade organic dyes, but also displayed antiviral properties to inactivate Φ6 phage virus.…”

Section: Current Developmentmentioning

confidence: 99%

Photocatalytic Fibers for Environmental Purification: Challenges and Opportunities in the Post‐Pandemic Era

Wu,

Chen,

Chien

et al. 2023

Adv Energy and Sustain Res

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The COVID‐19 pandemic has underscored the paramount importance of maintaining clean and safe environments. Strengthening environmental purification measures is pivotal for better preparedness and resilience against future health crises. Photocatalytic fibers, due to their versatility and adaptability to various application scenarios, play a pivotal role in the field of environmental purification. In this perspective, light is shed on the pivotal advancements in employing photocatalytic fibers to tackle environmental issues encompassing dye degradation, antibiotics decomposition, heavy metal removal, indoor air purification, and microbial disinfection. These applications hold significant promise in promoting cleaner and healthier environments while aligning with sustainability objectives. However, the implementation of photocatalytic fibers in practical scenarios is not without its challenges. Issues, such as near infrared responsiveness, all‐day active capacity, reusability, and scalability, must be addressed to ensure their reliability and long‐term effectiveness. Potential solutions for surmounting these challenges are also delved, aiming to provide a comprehensive overview for researchers and stakeholders. Exploring new avenues and innovative approaches may pave the way for the widespread deployment of photocatalytic fibers in environmental purification, especially in the post‐pandemic era where the need for clean and safe environments is more evident than ever.

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“…However, the majority of the reported studies rely on wet methods to produce the nanoparticles, such as thermal decomposition [ 18 , 19 ], reduction of silver precursors [ 20 , 21 ], or using biological compounds [ 22 , 23 ]. The resultant hydrosols need to be stable, so surfactants are used, modifying the as-prepared surface of the nanoparticles [ 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of Silver Nanoparticles Deposited in Facemask Material for Neutralising Viruses

et al. 2022

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Cloth used for facemask material has been coated with silver nanoparticles using an aerosol method that passes pure uncoated nanoparticles through the cloth and deposits them throughout the volume. The particles have been characterized by electron microscopy and have a typical diameter of 4 nm with the atomic structure of pure metallic silver presented as an assortment of single crystals and polycrystals. The particles adhere well to the cloth fibers, and the coating consists of individual nanoparticles at low deposition times, evolving to fully agglomerated assemblies in heavy coatings. The cloth was exposed to Usutu virus and murine norovirus particles in suspension and allowed to dry, following which, the infectious virus particles were rescued by soaking the cloth in culture media. It was found that up to 98% of the virus particles were neutralized by this contact with the silver nanoparticles for optimum deposition conditions. The best performance was obtained with agglomerated films and with polycrystalline nanoparticles. The work indicates that silver nanoparticles embedded in masks can neutralize the majority of virus particles that enter the mask and thus increase the opacity of masks to infectious viruses by up to a factor of 50. In addition, the majority of the virus particles released from the mask after use are non-infectious.

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Design of self-cleaning and self-disinfecting paper-shaped photocatalysts based on wood and eucalyptus derived cellulose fibers modified with gCN/Ag nanoparticles

Cited by 6 publications

References 43 publications

Pushing the Operational Barriers for g-C3N4: A Comprehensive Review of Cutting-Edge Immobilization Strategies

Pushing the Operational Barriers for g-C3N4: A Comprehensive Review of Cutting-Edge Immobilization Strategies

Photocatalytic Fibers for Environmental Purification: Challenges and Opportunities in the Post‐Pandemic Era

Effectiveness of Silver Nanoparticles Deposited in Facemask Material for Neutralising Viruses

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