Modification of polypropylene filter with metal oxide and reduced graphene oxide for water treatment

Ariffin, S.N.; Lim, Hong Ngee; Jumeri, F. A.; Zobir, Moh.Hussien; Abdullah, Ain Nadzimah; Ahmad, Muhammad Ashfaq; Ibrahim, Nor Azowa; Huang, N. M.; Teo, Peik See; Muthoosamy, Kasturi; Harrison, I. R.

doi:10.1016/j.ceramint.2013.12.016

Cited by 23 publications

(8 citation statements)

References 47 publications

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“…Titanium (IV) isopropoxide, as a TiO 2 precursor, in triethanolamine (TEA) was added to GO suspension in aqueous ethanol and stirred at room temperature. It was then placed in contact with the polypropylene porous filter and heated to 120 • C for 24 h. The polypropylene filter thus modified with TiO 2 /G exhibited high mechanical stability and improved photocatalytic activity, as measured by photodegradation of methylene blue and repeated for five cycles, as compared with the filter with TiO 2 only [99].…”

Section: The Hydrothermal (Ht) Methodsmentioning

confidence: 99%

“…In addition, the antifouling effect of TiO 2 /GO hierarchical filtration membrane under UV irradiation was demonstrated by the effective removal of organic dyes (Direct Red 80 and Direct Blue 15) [141]. A Polypropylene filter modified with TiO 2 /G, exhibited a higher rate of elimination of MB under halogen lamp irradiation as compared with the TiO 2 -modified filter [99].…”

Section: Other Applications For Water Decontaminationmentioning

confidence: 99%

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Titanium Dioxide/Graphene and Titanium Dioxide/Graphene Oxide Nanocomposites: Synthesis, Characterization and Photocatalytic Applications for Water Decontamination

2018

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The use of titanium dioxide, TiO2 as a photocatalyst in water decontamination has witnessed continuous interest due to its efficiency, stability, low toxicity and cost-effectiveness. TiO2 use is limited by its large band gap energy leading to light absorbance in the UV region of the spectrum, and by the relatively fast rate of recombination of photogenerated electrons and positive holes. Both limitations can be mitigated by using carbon-TiO2 nanocomposites, such as those based on graphene (G) and graphene oxide (GO). Relative to bare TiO2, these nanocomposites have improved photocatalytic activity and stability under the UV–visible light, constituting a promising way forward for improved TiO2 photocatalytic performance. This review focuses on the recent developments in the chemistry of TiO2/G and TiO2/GO nanocomposites. It addresses the mechanistic fundamentals, briefly, of TiO2 and TiO2/G and TiO2/GO photocatalysts, the various synthesis strategies for preparing TiO2/G and TiO2/GO nanocomposites, and the different characterization techniques used to study TiO2/G and TiO2/GO nanocomposites. Some applications of the use of TiO2/G and TiO2/GO nanocomposites in water decontamination are included.

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Section: The Hydrothermal (Ht) Methodsmentioning

confidence: 99%

Section: Other Applications For Water Decontaminationmentioning

confidence: 99%

Titanium Dioxide/Graphene and Titanium Dioxide/Graphene Oxide Nanocomposites: Synthesis, Characterization and Photocatalytic Applications for Water Decontamination

2018

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“…Other organic dyes such as MB [309][310][311][312][313], methyl orange (MO) [314,315] and crystal violet (Cv) [316] have also been effectively photodegraded via GO/RGO-based photocatalysts. Recently, the Z-scheme photocatalytic system of the Ag@AgCl/RGO composite displayed much higher photocatalytic activity of MB degradation than the normal Ag@AgCl/RGO composite because of the two parallel photochemical reactions by the electron-hole pairs of the low energy level recombined in space by metallic Ag as a solid-state electron mediator and the remaining electron-hole pairs of the high energy level [309].…”

Section: Conversion Of Containments In Wastewatermentioning

confidence: 99%

Graphene oxide: A promising nanomaterial for energy and environmental applications

et al. 2015

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Graphene oxide (GO), the functionalized graphene with oxygen-containing chemical groups, has recently attracted resurgent interests because of its superior properties such as large surface area, mechanical stability, tunable electrical and optical properties. Moreover, the surface functional groups of hydroxyl, epoxy and carboxyl make GO an excellent candidate in coordinating with other materials or molecules. Owing to the expanded structural diversity and improved overall properties, GO and its composites hold great promise for versatile applications of energy storage/conversion and environment protection, including hydrogen storage materials, photocatalyst for water splitting, removal of air pollutants and water purification, as well as electrode materials for various lithium batteries and supercapacitors. In this review, we present an overview on the current successes, as well as the challenges, of the GO-based materials for energy and environmental applications.

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“…Positive results indicated that the modified filter holds promise for use in water treatment (52). Water from the Hengjing River in Xinghua, China, was treated with a coagulation-porous ceramic membrane hybrid process, which results showed was effective in eliminating contaminants.…”

Section: Hybrid Filtrationmentioning

confidence: 92%

Clean Water for Developing Countries

Pandit

Kumar

2015

Annu. Rev. Chem. Biomol. Eng.

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Availability of safe drinking water, a vital natural resource, is still a distant dream to many around the world, especially in developing countries. Increasing human activity and industrialization have led to a wide range of physical, chemical, and biological pollutants entering water bodies and affecting human lives. Efforts to develop efficient, economical, and technologically sound methods to produce clean water for developing countries have increased worldwide. We focus on solar disinfection, filtration, hybrid filtration methods, treatment of harvested rainwater, herbal water disinfection, and arsenic removal technologies. Simple, yet innovative water treatment devices ranging from use of plant xylem as filters, terafilters, and hand pumps to tippy taps designed indigenously are methods mentioned here. By describing the technical aspects of major water disinfection methods relevant for developing countries on medium to small scales and emphasizing their merits, demerits, economics, and scalability, we highlight the current scenario and pave the way for further research and development and scaling up of these processes. This review focuses on clean drinking water, especially for rural populations in developing countries. It describes various water disinfection techniques that are not only economically viable and energy efficient but also employ simple methodologies that are effective in reducing the physical, chemical, and biological pollutants found in drinking water to acceptable limits.

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Modification of polypropylene filter with metal oxide and reduced graphene oxide for water treatment

Cited by 23 publications

References 47 publications

Titanium Dioxide/Graphene and Titanium Dioxide/Graphene Oxide Nanocomposites: Synthesis, Characterization and Photocatalytic Applications for Water Decontamination

Titanium Dioxide/Graphene and Titanium Dioxide/Graphene Oxide Nanocomposites: Synthesis, Characterization and Photocatalytic Applications for Water Decontamination

Graphene oxide: A promising nanomaterial for energy and environmental applications

Clean Water for Developing Countries

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