Photoactive TiO2 Containing Paper: Preparation and Its Photocatalytic Activity under Weak UV Light Illumination

Matsubara, Hirokazu; Takada, Makoto; Koyama, Shin-ichi; Hashimoto, Kazuhito; Fujishima, Akira

doi:10.1246/cl.1995.767

Cited by 104 publications

(71 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Several novel intelligent responsive functional materials have been created as a coating to tune specific surface functionalities of cellulose fibers or papers, including anti-microbial paper [160,161], insect-repellant paper [162], photoactive paper [163], fragrance paper [164], and color-producing papers [165]. These papers are mostly developed by micro or nano-encapsulation techniques, where the functional responsive material is encapsulated to provide protection from ambient environment or conditions.…”

Section: Active Tuning Of Surface Properties Of Papersmentioning

confidence: 99%

“…These papers are mostly developed by micro or nano-encapsulation techniques, where the functional responsive material is encapsulated to provide protection from ambient environment or conditions. Interestingly, these materials can respond to external stimuli such as mechanical stress [164], humidity [165], light [163], and temperature [162], and desired user properties can be achieved on demand. Especially, researchers could reversibly tune the wetting mechanisms (hydrophilic to hydrophobic and vice versa) of a liquid crystalline cellulosic film under UV light exposure, which was attributed to conformational transformation of the photo-sensitive molecules that results from the cis/trans isomerization of functional azo-groups [166].…”

Section: Active Tuning Of Surface Properties Of Papersmentioning

confidence: 99%

See 1 more Smart Citation

Bio-Based Coatings for Paper Applications

2015

View full text Add to dashboard Cite

Abstract:The barrier resistance and wettability of papers are commonly controlled by the application of petroleum-based derivatives such as polyethylene, waxes and/or fluor-derivatives as coating. While surface hydrophobicity is improved by employing these polymers, they have become disfavored due to limitations in fossil-oil resources, poor recyclability, and environmental concerns on generated waste with lack of biodegradation. Alternatively, biopolymers including polysaccharides, proteins, lipids and polyesters can be used to formulate new pathways for fully bio-based paper coatings. However, difficulties in processing of most biopolymers may arise due to hydrophilicity, crystallization behavior, brittleness or melt instabilities that hinder a full exploitation at industrial scale. Therefore, blending with other biopolymers, plasticizers and compatibilizers is advantageous to improve the coating performance. In this paper, an overview of barrier properties and processing of bio-based polymers and their composites as paper coating will be discussed. In particular, recent technical advances in nanotechnological routes for bio-based nano-composite coatings will be summarized, including the use of biopolymer nanoparticles, or nanofillers such as nanoclay and nanocellulose. The combination of biopolymers along with surface modification of nanofillers can be used to create hierarchical structures that enhance hydrophobicity, complete barrier protection and functionalities of coated papers. OPEN ACCESSCoatings 2015, 5 888

show abstract

Section: Active Tuning Of Surface Properties Of Papersmentioning

confidence: 99%

Section: Active Tuning Of Surface Properties Of Papersmentioning

confidence: 99%

Bio-Based Coatings for Paper Applications

2015

View full text Add to dashboard Cite

show abstract

“…Photocatalytic paper was first reported by Matsubara et al [10] in 1995, who presented the catalytic degradation of acetaldehyde in the vapor phase using illumination with a weak fluorescent light. Subsequently, a few publications and patents describing photocatalytic paper have appeared in the literature [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic paper using zinc oxide nanorods

Baruah

Jaisai

Imani

et al. 2010

Science and Technology of Advanced Materials

109

View full text Add to dashboard Cite

Zinc oxide (ZnO) nanorods were grown on a paper support prepared from soft wood pulp. The photocatalytic activity of a sheet of paper with ZnO nanorods embedded in its porous matrix has been studied. ZnO nanorods were firmly attached to cellulose fibers and the photocatalytic paper samples were reused several times with nominal decrease in efficiency. Photodegradation of up to 93% was observed for methylene blue in the presence of paper filled with ZnO nanorods upon irradiation with visible light at 963 Wm -2 for 120 min. Under similar conditions, photodegradation of approximately 35% was observed for methyl orange. Antibacterial tests revealed that the photocatalytic paper inhibits the growth of Escherichia coli under room lighting conditions.

show abstract

“…10,11 Thus, TiO 2 was immobilized on ceramic, 12 fiber glass, 13 glass and sand, 14,15 quartz and stainless steel, 15 pebbles, 16 activated carbon, 17,18 polyester fabric using polyvinyl alcohol as binder and Ti-TiO 2 prepared by thermal as well as flame oxidation of Ti sheet, 19 silica, 20 polystyrene beads, 21 zeolites, 22 and cellulose-based non-woven supports, photocatalytic paper, pulp, and TiO 2 coated cotton/cellulose fibers. [23][24][25][26][27][28][29] The TiO 2 immobilized substrates have been successfully used for the photocatalytic degradation of several organic pollutants.…”

Section: Introductionmentioning

confidence: 99%

“…We have successfully prepared stable and adherent TiO 2 film reinforced with cellulose fibers and report its application for photodegradation of select reactive dyes in this paper. The previous examples of photocatalytic paper [23][24][25][26][27][28] have been prepared by depositing TiO 2 onto the fibrous structure. However, to the best of our knowledge, the use of cellulose fibers for reinforcing the TiO 2 films over hydrophobic surfaces such as acrylic plastic has not been reported.…”

Section: Introductionmentioning

confidence: 99%

Cellulose reinforced-TiO2 photocatalyst coating on acrylic plastic for degradation of reactive dyes

Neti

Joshi

2010

J Coat Technol Res

View full text Add to dashboard Cite

In this study, cellulose reinforced-TiO 2 (C-T) film was coated on acrylic plastic sheet and used for UV photocatalytic degradation of four reactive dyes viz., Reactive Black 5, Reactive Red 11, Reactive Orange 16, and Reactive Red 2 in a falling film reactor (FFR). Slurry comprising cellulose and TiO 2 in suitable weight proportions (5, 10, 15, and 25 wt% cellulose) was prepared and a C-T film was obtained by brush coating on acrylic plastic sheet. The composition yielding adherent film and efficient for the dye degradation was identified. The effect of hydraulic flow rate and solution pH on the stability of the C-T films was also investigated. The photocatalytic coating containing 15 wt% cellulose was found to be adherent and efficient for dye degradation. The photodegradation of the reactive dyes, monitored in terms of decolorization (>80%), and reduction in total organic carbon (TOC) during 5 h followed pseudo first-order kinetics. The mineralization efficiency at 5 h treatment using 15 wt% C-T coating was in the range 75.4-83.3% for all the dyes. On the basis of optical microscopy images, the stability of the C-T films obtained from 15 wt% cellulose was attributed to the interlacing of the cellulose fibers that reinforced the TiO 2 coating.

show abstract

Photoactive TiO2 Containing Paper: Preparation and Its Photocatalytic Activity under Weak UV Light Illumination

Cited by 104 publications

References 6 publications

Bio-Based Coatings for Paper Applications

Bio-Based Coatings for Paper Applications

Photocatalytic paper using zinc oxide nanorods

Cellulose reinforced-TiO2 photocatalyst coating on acrylic plastic for degradation of reactive dyes

Contact Info

Product

Resources

About