Optimization of TiO2 nanowires synthesis using hydrothermal method for hydrogen production

Kustiningsih, Indar; Sutinah,; Stefirizky, M.; Slamet, Slamet; Purwanto, Widodo Wahyu

doi:10.15282/jmes.12.3.2018.9.0340

Cited by 6 publications

(6 citation statements)

References 39 publications

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“…The synthesis of nanocomposite was carried out by incorporating nanofillers such as silica, clay, and titanium dioxide CS in chitosan which made it possible not only to improve mechanical and barrier properties but also to provide other functions in food packaging applications 9,10 . TiO 2 is a photocatalyst and has been widely utilized in many applications such as hydrogen generation, water purification, and decomposition of pollutants air purification and also in medical applications self cleaning and self-disinfecting materials [11][12][13][14][15] . TiO 2 nanoparticle has been used as an effective antibacterial agent because its widespread availability, broad-spectrum antibiosis and low cost.…”

Section: Introductionmentioning

confidence: 99%

Development of Chitosan-TiO2 Nanocomposite for Packaging Film and its Ability to Inactive Staphylococcus Aureus

et al. 2019

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The aim of present study is to synthesize chitosan-TiO2 nanocomposite for packaging and its ability to inactive Staphylococcus aureus. TiO2 Degussa P25 were dispersed in chitosan matrix in order to produce film-forming solution. The samples were characterized by SEM, FTIR, tensile strength, antibacterial and biodegradable test. The tensile strength test results showed that Cs-0.1Ti was the best nanocomposite compared to other variations of TiO2 addition. Whereas for the test of S. aureus bacteria showed that no more S. aureus bacteria were found in chitosan-TiO2 nanocomposite after incubation for 24 hours. It indicated more effective use of nanocomposites by adding TiO2 compared to without adding TiO2. For biodegradation analysis, the addition of TiO2 slows the nanocompostites degradation process, which is indicated by the less mass loss that occurs in Cs-0.5 Ti nanocomposite.

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Section: Introductionmentioning

confidence: 99%

Development of Chitosan-TiO2 Nanocomposite for Packaging Film and its Ability to Inactive Staphylococcus Aureus

et al. 2019

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“…In the one-step method, generally, the nanofluids can be synthesized using mechanical, biological, chemical and chemical approach. For example, there are many techniques can be used to synthesis the nanofluid such as mechanical milling, mechanical stirring, ball milling, pulse wire evaporation, plasma treatment, solvothermal, thermochemical, chemical vapor deposition, and catalytic chemical vapor deposition [14,15]. In the previous study done by B.Munkhbayar et al [16], Ag and Ag-MWCNTs nanofluids were synthesized by applying the one-step method using pulsed wire evaporation (PWE).…”

Section: One-step Methodsmentioning

confidence: 99%

Preparation, stability and wettability of nanofluid: A review

Safiei

Rahman

Yusoff

et al. 2020

JMES

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Nanofluids possess many advantages over conventional working fluid especially in physical, thermal and rheology properties. Nowadays, nanofluids have been applied extensively in many engineering applications in enhancing the overall performance. Preparation and characterization of nanofluids are vital as the nanomaterials have significant effects on the dispersion and stability of nanofluids. On the other hand, there is a trend to employ more than a single nanoparticle for preparing nanofluid. The hybrid nanofluid receives wide attention due to its capability in improving the thermal-physical properties of single phase nanofluids. In this paper, the flow of formulating nanofluid from preparation method, characterization, wettability analysis and stability techniques are discussed comprehensively. Furthermore, the challenges for obtaining stable suspension and wettability behaviour of nanofluids are discussed as well. The main objective when preparing the nanofluids is to obtain a well-dispersed nanoparticle into the base fluid. Based on the literature review, the impact of surfactant on the stability and the correlation between nanofluids wettability and thermal-physical properties of nanofluids have great potential to discover. There are some aspects that can be considered to expand the knowledge of nanofluids such as the composition ratio of hybrid nanofluid with regards to achieving the best stability and wettability study of hybrid nanofluid with and without surfactant in the suspension. Therefore, a lot of research should be conducted in order to explore the behaviour of nanofluid and the effect of various surfactants in terms of stability as well as its thermal and viscosity effect on the engineering applications.

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“…The first reaction involves photogenerated holes oxidizing dissociatively bound H2O, while the second involves photoexcited electrons reducing an electron acceptor (often dissolved oxygen) to produce a hydroxyl and superoxide radical anion, respectively (Mills et al, 1997). The photocatalytic reactions follows these equations: (Slamet et al, 2018) Semiconductor material can be utilized as photocatalyst due to its energy band gap between conduction band and valence band.…”

Section: Photocatalytic Process Mechanismmentioning

confidence: 99%

“…The morphology of TiO2 can be established in various form of nanoparticles (Safajou et al, 2017;Giadhi et al, 2019), nanorods (Kang et al, 2008;Shahvaranfard et al, 2020), nanowires (Rahmat et al, 2019Kustiningsih et al, 2018) and nanotubes (Ghicou et al, 2009;Kustiningsih et al, 2020). TiO2 nanotubes can increase a lot of visible light scattering and absorption due to the ratio of length to large diameter, as well as large surface area, that can facilitate the transport of electrons to the electrodes (Gopal et al, 2012).…”

Section: Structure and Morphology Of Tio2mentioning

confidence: 99%

“…Those weaknesses contribute in low photon absorption (Liu et al, 2011). Some modification of TiO2 morphology had been created, include nanorods (Choi et al, 2008;Shahvaranfard et al, 2020), nanowires (Rahmat et al, 2019;Kustiningsih et al, 2018) dan nanotubes (Abu et al, 2009;Kustiningsih et al, 2020), in order to increase the surface area of TiO2. Nanotubes becomes favorite shape of TiO2 morphology because of it provides larger surface area compared to the other morphologies and it also has better photocatalytic effectiveness (Yan et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Improvement of the Efficiency of TiO2 Photocatalysts with Natural Dye Sensitizers Anthocyanin for the Degradation of Methylene Blue: Review

Kustiningsih

Pujiastuti

Slamet

2021

J. Rekayasa Kim. Lingkung.

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One of the potential methods utilized for dye degradation is photocatalitic, due to its low cost, highly effective, and environmentally friendly. Effectivenes of TiO2 photocatalysts can be enhanced by adding a dye sensitizer. Dye-sensitizer material absorbs visible light to facilitate electron excitation process. Addition of dye-sensitizer on TiO2 photocatalyst promotes it to be more responsive to visible light. Natural anthocyanin dyes are often used as sensitizers of TiO2 semiconductors. Anthocyanins are, usually in the purple to the red color range, a group of natural dyes found in the flowers, leaves, and fruit of plants. The essential principles of dye sensitization to TiO2 have been explored in this review. It is feasible to reduce the band gap energy in the TiO2 photocatalyst by modifying it using a natural dye sensitized modification. Dye sensitizers on TiO2 nanotubes plate have the potential to be employed in a dye degradation photocatalytic system

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Optimization of TiO2 nanowires synthesis using hydrothermal method for hydrogen production

Cited by 6 publications

References 39 publications

Development of Chitosan-TiO2 Nanocomposite for Packaging Film and its Ability to Inactive Staphylococcus Aureus

Development of Chitosan-TiO2 Nanocomposite for Packaging Film and its Ability to Inactive Staphylococcus Aureus

Preparation, stability and wettability of nanofluid: A review

Improvement of the Efficiency of TiO2 Photocatalysts with Natural Dye Sensitizers Anthocyanin for the Degradation of Methylene Blue: Review

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