Application of TiO2 nano particles photocatalyst to degrade synthetic dye wastewater under solar irradiation

Agustina, Tuty Emilia; Komala, Ria; Faizal, Muhammad

doi:10.12988/ces.2015.511305

Cited by 9 publications

(9 citation statements)

References 11 publications

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“…The longer the irradiation time will be the greater the percentage of color and COD degradation. Increasing the exposure time will enhance electron-hole formation and hence, the electron-hole recombination is negligible and in turn increases the construction of hydroxyl radicals, thereby, causing more effect on the percentage degradation of the dye [9]. In this research, the highest degradation of color and COD were obtained after 12 hours of irradiation of sunny days.…”

Section: Resultsmentioning

confidence: 64%

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Color and COD degradation in photocatalytic process of procion red by using TiO2 catalyst under solar irradiation

Sari

Agustina

Melwita

et al. 2017

AIP Conference Proceedings

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Abstract. Increasing textile industries in Indonesia resulted in increasing the utilization of dyes. The use of synthetic dyes are still dominating because they have many advantages. But, synthetic dyes are difficult to decompose in nature so they can cause potential pollution if discharged directly into the environment. In this study, Procion Red was used as a model of synthetic dye wastewater. The objective of this research is to study the effect of TiO2 catalyst concentration and irradiation time on the degradation of Procion Red under solar irradiation. Photo degradation takes place by using TiO2 catalyst powder in the various concentration of Procion Red of 150-300 ppm. The various concentrations of TiO2 catalyst of 0.5-8 g/l were used. The color and COD degradation of Procion Red for 12 hours of solar irradiation were investigated. Color degradation was measured by using a spectrophotometer. While COD degradation was measured by using Ferrous Ammonium Sulfate (FAS) analysis method. The result showed when using Procion Red of 150 ppm, the highest color degradation of 100% was achieved by using TiO2 catalyst of 6 g/l and the highest COD degradation of 62% was obtained by using TiO2 catalyst of 8 g/l, under 12 hours of solar irradiation

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Section: Resultsmentioning

confidence: 64%

“…After 12 hours of exposure time, the color of dye changes to become nearly clear and the color degradation of 88% was achieved when using 40% anatase-powder TiO 2 concentration of coating solution. The anatase-powder of TiO 2 used in the research was coated on the plastic media [9].…”

Section: Resultsmentioning

confidence: 99%

Color and COD degradation in photocatalytic process of procion red by using TiO2 catalyst under solar irradiation

Sari

Agustina

Melwita

et al. 2017

AIP Conference Proceedings

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“…Their results indicate that the rate of decolourization rises constantly with the increase in the amount of TiO 2 catalyst used in the range of 0.5−2 g/l. Several studies have also shown that the rate of the decolourization rises with the increase in the amount of the catalyst used [4,[28][29][30][31]. The increase in the photocatalyst activity with the increase in the amount of catalyst used is an indication of a heterogeneous catalyst regime, because the fraction of light absorbed by the catalyst rises with the increase in the amount of the catalyst in the suspension [27].…”

Section: Effect Of Tio 2 Catalyst Concentrationmentioning

confidence: 99%

“…For this reason, there is a need for a wastewater treatment technology that is simple and easy to apply in the textile industry, especially small and medium production plants, which are common Palembang. Several technologies have been developed to overcome wastewater problems that contain synthetic dyes, such as adsorption with activated carbon [2], coagulationflocculation [3], photocatalysis including semiconductors [4], and a combination of physics and biology [5]. Physical processing using adsorbents, such as zeolite and activated carbon, only removes pollutants from liquid media into solid media, but does not destroy the pollutants themselves.…”

Section: Introductionmentioning

confidence: 99%

STUDY OF SYNTHETIC DYE REMOVAL USING FENTON/TiO2, FENTON/UV, AND FENTON/TiO2/UV METHODS AND THE APPLICATION TO JUMPUTAN FABRIC WASTEWATER

Agustina¹,

Teguh²,

Wijaya³

et al. 2019

Acta Polytech

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Synthetic dyes were commonly used in textile industries such as Jumputan fabric industries in South Sumatera. Most of these industries were categorized as a home industry without a wastewater treatment plant, so the wastewater is released directly into waterbody. In general, the wastewater contains synthetic dyes, which are harmful to the environment and human body. Therefore, the wastewater needs to be treated before its release into the environment. Reactive Red 2 (RR2) is one of important synthetic dyes usually applied for colouring textile materials such as Jumputan fabric. The RR2 was used as a pollutant model in this research. The objective of the study is to compare the removal of RR2 by using Fenton/TiO2, Fenton/UV, and Fenton/TiO2/UV methods. Furthermore, the optimum conditions obtained were applied for the treatment of wastewater from Jumputan fabric industry. As a conclusion, the highest RR2 degradation of 100% was reached by using the Fenton/TiO2/UV method after 5 minutes of reaction. It was discovered that the optimum conditions were found when using [Fe2+]/[H2O2] molar ratio of 1:80, pH of 3, and TiO2 concentration of 0.4% (w/v). However, the application of the condition to the Jumputan wastewater treatment leads to Chemical Oxygen Demand (COD) removal of 94% within 120 minutes of reaction.

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“…Titanium dioxide is a photosensitive semiconductor, it can be excited to produce electron-hole pair under ultraviolet light irradiation, through photoinduced processes that take place in TiO2 [1]. Due to its chemical stability, non-toxicity, high photochemical resistance and abundance, has attracted a lot of interest in the scientific community [2]. It has been widely researched and numerous applications have been developed in different areas, including photocatalysis, photovoltaic and photoelectrochemical devices and painting industry [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Effect of Cu on optical properties of TiO2 nanoparticles

Alvaro¹,

Diana²,

Maria³

2017

ces

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Cu-doped TiO2 nanoparticles were prepared; the effect of Cu on optical properties of TiO2 nanoparticles to shift its absorption edge toward visible light region was studied. By using a green synthesis mechanism were obtained TiO2 nanoparticles, and trough wet -impregnation method using copper sulfate as precursor were obtained Cu-TiO2 nanoparticles. The synthesized material was characterized by Fourier transform infrared spectroscopy (FT-IR), Scanning electron microscopy (SEM), Energy Dispersive Spectroscopy (EDS), UV-VIS diffuse reflectance spectroscopy (UV-Vis/RDS). FTIR characterization have been made to confirm the formation of TiO2. Through EDS analysis was determined the ion dopant percent in each sample. Morphological properties and particle size were identified by SEM micrographs, which disclose a spherical shape with an average size between 70 and 27.3 nm. UV-VIS/RDS spectrum showed that the band gap energy decreases with the increase of Cu concentration in TiO2, for that reason, doped nanoparticles had activity under visible light irradiation.

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Application of TiO2 nano particles photocatalyst to degrade synthetic dye wastewater under solar irradiation

Cited by 9 publications

References 11 publications

Color and COD degradation in photocatalytic process of procion red by using TiO2 catalyst under solar irradiation

Color and COD degradation in photocatalytic process of procion red by using TiO2 catalyst under solar irradiation

STUDY OF SYNTHETIC DYE REMOVAL USING FENTON/TiO2, FENTON/UV, AND FENTON/TiO2/UV METHODS AND THE APPLICATION TO JUMPUTAN FABRIC WASTEWATER

Effect of Cu on optical properties of TiO2 nanoparticles

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