Solid-phase photocatalytic degradation of polystyrene plastic with TiO2 as photocatalyst

Shang, Jian Ku; Chai, Ming; Zhu, Yongfa

doi:10.1016/s0022-4596(03)00183-x

Cited by 187 publications

(102 citation statements)

References 21 publications

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“…Therefore, it seems that the composition of plastic with TiO 2 nanoparticles is a useful means to decompose solid polymer in the open air. Researchers have recently studied the solid-phase photocatalytic degradation of polymer-TiO 2 nano-composite [8][9][10][11][12] . But the photodegradation properties of PP nano-composites has rarely been studied.…”

Section: Hoomentioning

confidence: 99%

Photocatalytic degradation of polypropylene/TiO2 nano-composites

et al. 2014

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In this research, we have investigated the photocatalytic degradation of carbon-coated TiO 2 nanoparticles in polypropylene-based nano-composites. For this purpose, polypropylene-based nano-composites were prepared using carbon-coated TiO 2 nanoparticles and commercially available TiO 2 nanoparticles (Degussa, P25). Our results from SEM, FTIR, and tensile tests showed that the photocatalytic property of TiO 2 causes chain scission reactions, crosslinking and consequently photocatalytic degradation of polypropylene that affects the mechanical properties of exposed nano-composites. We have observed that with greater carbon content of the TiO 2 nano-powders, there is less photocatalytic degradation.

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Section: Hoomentioning

confidence: 99%

Photocatalytic degradation of polypropylene/TiO2 nano-composites

et al. 2014

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“…These free radicals can cause polymer molecular chain fracture and decomposition, and ultimately the plastic into carbon dioxide and water and other substances, to achieve the purpose of degradation. In addition, the titanium dioxide also has a strong stability, non-toxic and so on, so titanium dioxide as the preparation of photodegradable plastics preferred catalyst [17][18][19][20] . In recent years, photodegradable plastics prepared with titanium dioxide as photocatalyst have attracted much attention of researchers.…”

Section: The Development Trend Of Biodegradable Filmmentioning

confidence: 99%

Research on Biodegradable Films and Their Comparison with Ordinary Films

Yang¹,

Wu²,

Li³

et al. 2018

Proceedings of the 2018 3rd International Conference on Automation, Mechanical Control and Computational Engineering (AMCCE 201

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Abstract:As a new type of film, degradable film is now widely used and can be used to package a variety of fruits, vegetables, etc., the purpose of which is to achieve better preservation and delay the storage period. With the development of modern biology, more and more people pay attention to degradable film. Degradable film not only has the function and characteristics of traditional plastic, but also it will revert to reductive form Ecological environment and return to nature in the life of life through the soil and water microbial action or by the role of sunlight in the ultraviolet light, in the natural environment, spliting degradation, so that it will not cause pollution to the environment. New-type fresh-keeping film of fruits and vegetables achieves the purpose of protecting the environment by using film made of degradable materials such as titanium dioxide, starch, soybean protein, chitosan and cellulose. However, now on the market many films do not have good preservation effect and can also destroy the flavor of the food. So this paper conducts a clear exposition of the development and preservation of biodegradable.

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“…Such radicals induce polymer degradation by initiating random chain scissions in the host polymer; this is also known as photocatalytic degradation. 12,13 Excessive chain scissions lower the host polymer molecular weight, thus decreasing their mechanical properties. Hence, the choice of nanoparticles and the host polymer is important so that UV-barrier properties can be improved while the degradation induced by the nanoparticle is minimized.…”

Section: Nanocomposite Light Transmittance and Dispersionmentioning

confidence: 99%

Semitransparent poly(styrene‐r‐maleic anhydride)/alumina nanocomposites for optical applications

Anilchandra

Turng

Gopalan

et al. 2007

J of Applied Polymer Sci

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This article presents the development and characterization of transparent poly(styrene-r-maleic anhydride) (SMA)/alumina nanocomposites for potential use in optical applications. Chemically treated spherical alumina nanoparticles were dispersed in an SMA matrix polymer via the solution and melt-compounding methods to produce 2 wt % nanocomposites. Field emission scanning electron microscopy was used to examine the nanoparticle dispersion. When the solution method was used, nanoparticle reagglomeration occurred, despite the fairly good polymer wetting. However, through the coating of the alumina nanoparticles with a thin layer (ca. 20 nm) of low-molecularweight SMA, reagglomeration was absent in the melt-compounded samples, and this resulted in excellent nanoparticle dispersion. The resultant nanocomposites were semitransparent to visible light at a 2-mm thickness with improved UV-barrier properties. Their impact strengths, tensile strengths, and strains at break were slightly reduced compared with those of their neat resin counterpart, whereas a small enhancement in their moduli was achieved.

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Solid-phase photocatalytic degradation of polystyrene plastic with TiO2 as photocatalyst

Cited by 187 publications

References 21 publications

Photocatalytic degradation of polypropylene/TiO2 nano-composites

Photocatalytic degradation of polypropylene/TiO2 nano-composites

Research on Biodegradable Films and Their Comparison with Ordinary Films

Semitransparent poly(styrene‐r‐maleic anhydride)/alumina nanocomposites for optical applications

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