Deposition of TiO2 nanoparticles in surfactant-containing aqueous suspension by a pulsed DC charging-mode electrophoresis

Naim, Mohd Nazli; Kuwata, Masahiko; Kamiya, Hidehiro; Lenggoro, I. Wuled

doi:10.2109/jcersj2.117.127

Cited by 21 publications

(12 citation statements)

References 22 publications

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“…Figure 5 shows that the amount of the deposited particles of colloid A was higher than that of colloid B. Particles having with smaller diameters may deposit more readily than larger particles due to higher mobility and higher surface area [8]. No deposition of colloid B into the pores was probably caused by aggregation of the particles on the surface inhibiting the insertion.…”

Section: The Effect Of Particle Sizementioning

confidence: 99%

“…In the vicinity of two electrodes, deposition of charged particles onto a substrate surface with an opposite charge occurs. Since then, various techniques to deposit particle materials have been invented [5][6][7][8][9][10][11]. However, bubble generation coming from water hydrolysis interrupted the deposition and causes the nm-order particles fail to deposit [5].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, controls of certain EPD parameters are very important in order to ensure the deposit are uninterrupted during the deposition process. For examples to prevent the bubble generation, several EPD techniques has been invented such as alternating current (AC) EPD, pulse DC EPD, low voltage deposition and solvent-aqueous mixtures [5][6][7][8][9][10][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Immobilization of colloidal particles into sub-100 nm porous structures by electrophoretic methods in aqueous media

Kusdianto

Naim

Sasaki

et al. 2014

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Conventional direct current (DC) and pulse-DC assisted electrophoretic depositions of colloidal particles, with average sizes of 10 and 50 nm, into sub-100 nm scaled pore arrays made from anodized aluminum substrate has been investigated. At the applied voltages lower than the decomposition voltage of water (~1 V), the number concentration of particle deposited on the surface by conventional DC was higher than that of pulse DC. The number of deposited particles increased with increasing pH. Deposition efficiency inside the pores can be enhanced by applying pulse DC. In the case of high (~10 V) applied voltage, no particles were observed inside pores even though pulse DC has been applied. The adhesion strength (removal behavior) of deposition was evaluated by applying a particle detachment simple system based on ultrasonic energy. The particles deposited

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Section: The Effect Of Particle Sizementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Immobilization of colloidal particles into sub-100 nm porous structures by electrophoretic methods in aqueous media

Kusdianto

Naim

Sasaki

et al. 2014

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…The elaboration of SS/PbO2 electrodes was done in a bath containing 0.5M of HNO3 (Sigma -Altrich , purity:95% ) and 0.5M of Pb(NO3)2 Panerac Quimica, SA( purity: 99%). A total of 900 pulses (height =30 mA/cm 2 , width =1s, relaxation time=5s at zero current) were applied for each anode for 34 min (Naim et al 2009).…”

Section: Elaboration Of Ss/pbo2 By Pulsed Mode Currentmentioning

confidence: 99%

The combined chemical and mechanical modifications of cigarette: a novel methodology to reduce harmful effects

Kollati

Mohapatra

2021

Environ Sci Pollut Res

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The present paper aims to valorize the use of cheap agricultural waste materials for polluted water decontamination. An evaluation of the efficiency of coupling anodic oxidation (AO) using SS/PbO2 electrodes with biosorption by Luffa cylindrica (L.C) for the removal of Amaranth Red (E123) from aqueous solution was investigated. The effects of pH, contact time, and initial concentration were studied. The regeneration of L.C was estimated based on biosorption /desorption tests. The performance of the coupling process was evaluated based on the color, chemical organic carbon (COD), Total organic carbon (TOC) removals, the energy consumed, and the time required for the degradation of Amaranth. A comparison between the efficiency of the AO and the coupling process for the increase of the lifetimes of the anodes used was done. 54.1, 97.8, and 99.9% of 50 mg.L -1 of Amaranth were removed respectively after 85, 65, and 50 min by biosorption, AO, and coupling AO with biosorption. An increase in the percentages of COD, TOC, germination indexes (GI), and Amaranth removals were observed when adopting the coupling process. Furthermore, a decrease in the release of Pb 2+ ions was observed confirming the good stability of the elaborated anodes during the coupling process. Atomic absorption analysis showed that the Pb 2+ ions reached about 0.020 mg.L -1 , after the total removal of Amaranth dye (60 min) and 0.051 after (80 min) respectively, for coupling AO with biosorption and the AO process. These values are inferior to those allowed by the Standards. Phytotoxicity tests confirmed the possibility of the reuse of the treated solutions.

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“…Previously, we have demonstrated several recognised deposition techniques for nanometer-order film deposition from the liquid phase. The applied methods were electrophoretic and electrospray deposition [7,8]. A few methods demonstrated by several workers also show potential deposition techniques such as sol-gel, electroless plating and impregnation [9].…”

Section: Introductionmentioning

confidence: 99%

Deposition of nanostructures derived from electrostatically stabilised TiO2 aqueous suspension onto a biocomposite

Naim

Jaafar

Bakar

et al. 2015

Advanced Powder Technology

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a b s t r a c tA nanostructure derived from TiO 2 particle deposition onto a biocomposite surface derived from coir dust (CD) was developed to control degradation using a spray dry technique. To stabilise and reduce the size of dispersed particles, the TiO 2 powder was prepared in deionised water at pH 10 and sonicated at 20 kHz and 400 W. The coir dust was obtained from coconut kernel waste and underwent drying treatment before it was mixed with polypropylene (PP) as the substrate. The suspension consisted of particles with an average size and zeta value of 285 nm and À19.2 mV, respectively. The suspension was spray dried onto a hot-pressed substrate (biocomposite) with a surface roughness between 0.23 and 1.57 lm at ambient temperature. Scanning electron microscopy image analysis and Fourier transform infrared spectroscopy analysis indicated that the TiO 2 particles were successfully deposited onto the substrate, shown by the existence of a carboxylic acid group (ACOOH) in the CD matrix. Moreover, the weight of the deposited substrate increased exponentially with deposition time compared to pure PP substrate. However, the deposition rate of TiO 2 nanoparticles was limited by the ratio of the substrate surface roughness to particle diameter, as predicted by a previous study.

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Deposition of TiO2 nanoparticles in surfactant-containing aqueous suspension by a pulsed DC charging-mode electrophoresis

Cited by 21 publications

References 22 publications

Immobilization of colloidal particles into sub-100 nm porous structures by electrophoretic methods in aqueous media

Immobilization of colloidal particles into sub-100 nm porous structures by electrophoretic methods in aqueous media

The combined chemical and mechanical modifications of cigarette: a novel methodology to reduce harmful effects

Deposition of nanostructures derived from electrostatically stabilised TiO2 aqueous suspension onto a biocomposite

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