Synthesis of titanium dioxides in water-in-carbon dioxide microemulsion and their photocatalytic activity

Hong, Seong-Soo; Lee, Man Sig; Lee, Gun-Dae; Lim, Kwon Taek; Ha, Bae-Jin

doi:10.1016/s0167-577x(02)01407-6

Cited by 20 publications

(11 citation statements)

References 16 publications

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“…Different methods have been employed for the synthesis of titanium dioxide, as follows: chemical precipitation (Pedraza and Vasquez, 1999;Scolan and Sanchez,1998), the sol-gel method (Gartner et al, 2004;Su et al, 2006b), hydrothermal (Wu et al, 2002) and solvothermal processes (Kim et al, 2003;Yin et al, 2003), combustion method (Nagaveni et al, 2003), a microemulsion-mediated process (Hong et al, 2003), electrochemical synthesis , fungus-mediated synthesis (Jha et al, 2009) and chemical vapour deposition (CVD) (Jones and Chalker 2003). Venkatachalam et al (2007) reported the preparation of titanium dioxide nanoparticles via the sol-gel method with different reaction parameters, such as different hydrolyzing agents, molar ratio, aging time and calcination temperature.…”

Section: Introductionmentioning

confidence: 99%

Temperature and reaction time effects on the structural properties of titanium dioxide nanopowders obtained via the hydrothermal method

Jahn

Carreño

Foletto

2011

Braz. J. Chem. Eng.

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-An investigation was carried out on the synthesis of titanium dioxide nanopowders via the hydrothermal method, examining the influence of temperature (150ºC and 200ºC) and reaction time (6 to 36 h). The resulting powders were characterized by X-ray diffraction, infrared absorption spectrophotometry, transmission electron micrographs and surface area. The X-ray diffraction revealed that there was formation of a pure crystalline phase, consisting only of anatase for all conditions of synthesis. Both temperature and reaction time proved to have a slight influence on the crystallite size (from 9 to 17 nm) and a significant influence on the surface area (from 86 to 168 m 2 .g -1 ).

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Section: Introductionmentioning

confidence: 99%

Temperature and reaction time effects on the structural properties of titanium dioxide nanopowders obtained via the hydrothermal method

Jahn

Carreño

Foletto

2011

Braz. J. Chem. Eng.

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“…Hasil yang sama juga diperoleh Hong, et al [14]. Hal ini menunjukkan bahwa TiO 2 mampu menyerap cahaya pada rentang ultraviolet.…”

Section: Hasil Dan Pembahasanunclassified

Pengaruh Konsentrasi Ruthenium (N719) sebagai Fotosensitizer dalam Dye-Sensitized Solar Cells (DSSC) Transparan

Hardani

Hendra

Darmawan

et al. 2016

JFA

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Intisari DSSC (Dye-sensitized solar cells) adalah suatu devais yang mampu mengubah energi matahari menjadi energi listrik dengan memanfaatkan dye ruthenium (N719) sebagai sensitizer. Pada penelitian ini telah berhasil dibuat elektroda kerja berbahan titanium dioksida (TiO2) ukuran nanopartikel berbentuk lapisan yang dideposisikan diatas gelas transparan konduktif FTO (fourine doped-tin oxide) dengan metode spin coating. Dari hasil pengujian menggunakan solar simulator AM 1.5G (100 mW/cm 2 ) diperoleh overall conversion efficiency mencapai 0,298% dengan tegangan open circuit (Voc) sebesar 460 mV, rapat arus short circuit (Jsc) sebesar 7,5 mA dengan fill factor (FF) 0,24.ABSTRACT DSSC (Dye-sensitized solar cells) is a firmware device capable of converting solar energy into electrical energy by utilizing a ruthenium dye (N719) as a sensitizer. In this research has been successfully made the working electrode is made of titanium dioxide ( TiO2) nanoparticles size shaped thin film is deposited on a transparent conductive glass FTO (fourine-doped tin oxide) by the spin coating method. From the test results using AM 1.5G solar simulator (100 mW / cm 2 ) obtained overall conversion efficiency reached 0.298% with an open circuit voltage (Voc) of 460 mV, short circuit current density (Jsc) of 7.5 mA with a fill factor (FF ) 0.24. Energi merupakan kebutuhan yang sangat penting dalam memenuhi segala bentuk kebutuhan hidup di dunia, sehingga kebutuhan energi di dunia semakin hari semakin meningkat. Oleh sebab itu, pencarian sumber energi alternatif yang dapat diperbaharui (renewable), murah dan ramah lingkungan menjadi tuntutan yang tidak dapat ditunda lebih lama lagi saat ini sehubungan dengan menyusutnya cadangan bahan bakar fosil secara siginifikan dalam beberapa tahun belakangan ini, serta efek rumah kaca dan pemanasan global yang ditimbulkan selama proses pengunaannya. Kementerian Energi dan Sumber Daya Mineral (ESDM) Republik Indonesia memperkirakan cadangan minyak bumi di tanah air hanya mencukupi untuk 18 tahun ke depan, sementara gas bumi dan batubara masingmasing hingga 61 dan 147 tahun ke depan [1]. Salah satu energi alternatif yang mempunyai potensi sangat besar namun belum dimanfaatkan secara maksimal adalah sel surya (photovoltaic/solar cell) yang mampu mengkonversi sinar matahari secara langsung menjadi energi listrik. DSSC berbeda dengan sel surya komersial berbasis silikon, dimana pada sel surya DSSC ini terjadi pemisahan antara fungsi penyerapan cahaya dengan transport pembawa muatannya [2], DSSC memiliki * E-MAIL: danylastchild07@gmail.com beberapa keunggulan dibandingkan dengan sel surya komersial berbasis silikon diantaranya murah, pembuatannya mudah, serta memiliki efisiensi tinggi walau pada intensitas cahaya yang kurang [3]. Komponen-komponen didalam DSSC pada umumnya terdiri dari elektroda kerja berupa elektroda foto-anoda dari bahan semikonduktor (misalkan: TiO 2 dan ZnO), dye sebagai sensitizer yang menyerap cahaya matahari, pasangan redox berupa triodide/iodide, dan counter elektroda berbahan Plat...

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“…The activity of 95TiO 2 900 was higher due to its enhanced crystallinity, even though the SSA of 95TiO 2 900 was lower than that of 80TiO 2 900. It is clear that both the surface area and crystallinity need to be optimized (synthesis temperature and TTIP heating temperature) to improve the photocatalytic activity [24,[36][37][38][39][40].…”

Section: Characterization Of Photocatalytic Activitymentioning

confidence: 99%

Photocatalytic degradation of methylene blue with TiO2 nanoparticles prepared by a thermal decomposition process

et al. 2010

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Synthesis of titanium dioxides in water-in-carbon dioxide microemulsion and their photocatalytic activity

Cited by 20 publications

References 16 publications

Temperature and reaction time effects on the structural properties of titanium dioxide nanopowders obtained via the hydrothermal method

Temperature and reaction time effects on the structural properties of titanium dioxide nanopowders obtained via the hydrothermal method

Pengaruh Konsentrasi Ruthenium (N719) sebagai Fotosensitizer dalam Dye-Sensitized Solar Cells (DSSC) Transparan

Photocatalytic degradation of methylene blue with TiO2 nanoparticles prepared by a thermal decomposition process

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