The Composite of ZrO2-TiO2 Produced from Local Zircon Sand Used as A Photocatalyst for The Degradation of Methylene Blue in A Single Batik Dye Wastewater

In this research, a composite of ZrO2-TiO2 was used as a photocatalyst in the degradation of dye wastewater. The dye waste water is a single Methylene Blue, MB, wastewater from Batik industry. Meanwhile, the ZrO2 was prepared from zircon sand founded from Bangka Island, Indonesia. The composite was prepared at various weight ratio and heat treated at 500 oC. The result shows that the purity of ZrO2 from zircon sand is only 66.46 %. However, the addition of ZrO2 into TiO2 able to increase the photocatalytic activity proven by 88.75 % degradation of MB at a ZrO2-TiO2 weight ratio of 1:1. The result is higher than the degradation with anatase TiO2; that is only 62.67 %. The kinetics study found that the photocatalytic degradation of MB with single TiO2 has the rate constant of 1.85x10-2 minutes-1. Meanwhile, the rate constant of the MB degradation with the composite ZrO2-TiO2 is 16.73x10-2 minutes-1. Copyright © 2016 BCREC GROUP. All rights reservedReceived: 20th August 2015; Revised: 13rd December 2015; Accepted: 30th December 2015How to Cite: Permadani, I., Phasa, D.A., Pratiwi, A.W., Rahmawati, F. (2016). The Composite of ZrO2-TiO2 Produced from Local Zircon Sand Used as A Photocatalyst for The Degradation of Methylene Blue in A Single Batik Dye Wastewater. Bulletin of Chemical Reaction Engineering & Catalysis, 11 (2): 133-139. (doi:10.9767/bcrec.11.2.539.133-139) Permalink/DOI: http://dx.doi.org/10.9767/bcrec.11.2.539.133-139

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Photocatalytic Activity of TiO2-Calcium Phosphate Nanocomposite on the Removal of Methylene Blue in Aqueous Suspension

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.622-623.995 ◽

2012 ◽

Vol 622-623 ◽

pp. 995-999

Author(s):

Nguyen Thi Truc Linh ◽

Phan Dinh Tuan ◽

Nguyen Van Dzung

Keyword(s):

Methylene Blue ◽

Photocatalytic Activity ◽

Calcium Phosphate ◽

Rate Constant ◽

Aqueous Suspension ◽

Decomposition Reaction ◽

Aqueous Suspensions ◽

Uva Irradiation

The TiO2-calcium phosphate (TiO2/CP) nanocomposites with different ratios were prepared by precipitation of calcium phosphate in the presence of nano-sized TiO2. The products were characterized by BET, XRD, SEM and EDX techniques. Photocatalytic activity of the nanocomposites was evaluated as a rate constant of decomposition reaction of methylene blue (MB) in aqueous suspensions under UVA irradiation. It was observed that all of the nanocomposites showed higher photocatalytic activity in comparison to pure TiO2 catalyst. In particular, the rate constant photodecomposition of MB on TiO2/CP composite at 9:1 ratio (w/w) was above five times higher than on pure TiO2.

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Photocatalytic Behavior of Na2ZrTi5O13 Sol-Gel

Materials Science Forum ◽

10.4028/www.scientific.net/msf.486-487.57 ◽

2005 ◽

Vol 486-487 ◽

pp. 57-60 ◽

Cited By ~ 4

Author(s):

Lorena L. Garza-Tovar ◽

Leticia M. Torres-Martínez ◽

J.S. Ramos-Garza ◽

L.G. Castillo-Torres

Keyword(s):

Methylene Blue ◽

Photocatalytic Activity ◽

Sol Gel ◽

Band Gap Energy ◽

Reaction Products ◽

X Ray Diffraction ◽

Methylene Blue Degradation ◽

Heat Treated ◽

The Family ◽

Gel Ph

The photocatalytic activity of samples of the new ceramic semiconductor, Na2ZrTi5O13 sol-gel, was studied using two different reactions, the decomposition (oxidation) of methylene blue and reduction-oxidation of Pb (II) from aqueous solutions at room temperature. We synthesised Na2Ti5ZrO13, which is isostructural to the family of compounds with general formula AnMTimO13, (A = Li, Na, K; M = Zr). These materials present a zig zag arrangement forming rectangular tunnels in their structure. The synthesis of this compound was achieved by sol-gel technique using metalic alcoxides at two different pH, 3 and 9. The fresh gels were heat treated at 200°C, 400°C, 600°C and 800°C. The reaction products were characterized by X-ray diffraction (XRD), thermal analysis (DTA, TGA) and infrared spectroscopy (FTIR). The band gap energy (Eg) of each sample prepared was calculated from the UV-Vis absorption spectra. . The values of Eg obtained ranged from 3.5 to 3.2 eV. The best activity found for the methylene blue degradation was performed by the Na2ZrTi5O13 sol-gel pH 9, treated at 800oC (99%). We assumed that the photocatalytic activity is favored when the structure was already formed. Lead photocatalysed reactions using Na2ZrTi5O13 sol-gel pH 9, treated at 600 oC showed a higher eficiency (98%) than that obtained by TiO2 (degussa) (85%).

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Ag2O and NiO Decorated CuFe2O4 with Enhanced Photocatalytic Performance to Improve the Degradation Efficiency of Methylene Blue

Materials ◽

10.3390/ma13214760 ◽

2020 ◽

Vol 13 (21) ◽

pp. 4760

Author(s):

Lu Liu ◽

Nan Hu ◽

Yonglei An ◽

Xingyuan Du ◽

Xiao Zhang ◽

...

Keyword(s):

Methylene Blue ◽

Rate Constant ◽

Fenton Reaction ◽

Degradation Rate ◽

Photocatalytic Performance ◽

Reaction System ◽

Dye Wastewater ◽

Degradation Rate Constant ◽

Degradation Effect ◽

High Degradation Rate

Dye wastewater is a serious threat to human health and life. It is an important task for researchers to treat it efficiently. Among many treatment methods, the photo-Fenton method can rapidly degrade organic pollutants. In this study, a ternary photocatalyst, Ag2O-NiO/CuFe2O4, was prepared and applied for a photo-Fenton reaction to degrade methylene blue (MB). MB had the best degradation effect when 10 mg of the catalyst were used in an 80 mL reaction system for measurement. The degradation rate of MB was up to 96.67% in 60 min with a high degradation rate constant k=5.67×10−2min−1. The total organic carbon (TOC) degradation rate was 78.64% with a TOC degradation rate constant of k=2.57×10−2min−1. Therefore, this study fully proves that Ag2O-NiO/CuFe2O4 can catalyze the photo-Fenton reaction and effectively degrade MB.

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Phenol and methylene blue photodegradation over Ti/SBA-15 materials under uv light

Polish Journal of Chemical Technology ◽

10.1515/pjct-2016-0045 ◽

2016 ◽

Vol 18 (3) ◽

pp. 30-38 ◽

Cited By ~ 1

Author(s):

Tomasz Olejnik ◽

Sylwia Pasieczna-Patkowska ◽

Adam Lesiuk ◽

Janusz Ryczkowski

Keyword(s):

Methylene Blue ◽

Photocatalytic Activity ◽

Diffuse Reflectance Spectroscopy ◽

Uv Light ◽

Weight Ratio ◽

Incipient Wetness Impregnation ◽

Titanium Tetraisopropoxide ◽

X Ray ◽

Silica Supports ◽

Transmission Electron

Abstract Ordered SBA-15 mesoporous silica supports have been synthesized and used for incorporation of titanium with different Ti/Si weight ratio via incipient wetness impregnation. Titanium tetraisopropoxide (TTIP) was used as a source of Ti. Obtained catalysts were characterized to investigate the chemical framework and morphology by nitrogen sorption measurements, powder X-ray diffraction (XRD), X-ray fluorescence elemental analysis (XRF), transmission electron microscopy (TEM), UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS) and Fourier transform infrared photoacoustic spectroscopy (FT-IR/PAS). The photocatalytic degradation of phenol and methylene blue water solutions were selected as a probe reactions to the photoactivity test of prepared samples and to verify the potential application of these materials for water purification. Experimental results indicate that the photocatalytic activity of Ti/Si mixed materials depends on the adsorption ability of composites and the photocatalytic activity of the titanium oxide.

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Fabrication of Titanium Dioxide/Carbon Fiber (TiO2/CF) Composites for Removal of Methylene Blue (MB) from Aqueous Solution with Enhanced Photocatalytic Activity

Journal of Chemistry ◽

10.1155/2021/9986158 ◽

2021 ◽

Vol 2021 ◽

pp. 1-11

Author(s):

Hao Cheng ◽

Wenkang Zhang ◽

Xinmei Liu ◽

Tingfan Tang ◽

Jianhua Xiong

Keyword(s):

Methylene Blue ◽

Photocatalytic Activity ◽

Carbon Fiber ◽

Photocatalytic Degradation ◽

Diffuse Reflectance Spectroscopy ◽

Monochromatic Light ◽

Weight Ratio ◽

Carbon Fiber Composites ◽

Simple Method ◽

X Ray

TiO2 powder was firstly synthesized and carbon fiber was secondly prepared via the carbonization of polyaniline fiber, and TiO2/carbon fiber composites were lastly synthesized via a simple method at room temperature. The prepared samples are evidently investigated by X-ray powder diffraction, scanning electron microscopy, energy dispersive spectroscopy, ultraviolet-visible diffuse reflectance spectroscopy, photoluminescence spectrum, and X-ray photoelectron spectroscopy, respectively. Using the monochromatic light of ultraviolet, the photocatalytic activity of the TiO2/CF composites was accurately evaluated with respect to the degradation of an aqueous dye (methylene blue) solution. The relationship between the photocatalytic degradation of methylene blue dye and its ratio, contact time, and the amount of catalyst was studied. The kinetics and mechanisms of degradation were discussed. The results show that TiO2/CF composites have good photocatalytic activity and stability. The TiO2/CF2/1 composite was used in effective photocatalytic degradation of methylene blue, the weight ratio of TiO2 to carbon fiber was 2:1, and the degradation rate was obtaining up to 97.7% of degradation during 120 min of reaction. The photocatalytic stability of TiO2/CF composites was dependent on the stability of their structure. After 5 repeated uses, the composite TiO2/CF2/1 still exhibited rather high activity toward the degradation of methylene blue, where the decolorization efficiency of methylene blue achieved 92% and the loss of activity was negligible. Based on radical trapping experiments, the mechanism of TiO2/CF composites on photocatalytic degradation of methylene blue is proposed, which could explain the enhanced photocatalytic activity of the composites better. Superoxide radicals, photogenerated holes, and photogenerated electrons were the main active substances for methylene blue degradation.

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Studying the effect of monochrome light on the photocatalytic activity of tungsten oxide

Journal of Physics Conference Series ◽

10.1088/1742-6596/2057/1/012117 ◽

2021 ◽

Vol 2057 (1) ◽

pp. 012117

Author(s):

N M Derbasova ◽

V M Gavrish ◽

A Oleynik

Keyword(s):

Methylene Blue ◽

Photocatalytic Activity ◽

Tungsten Oxide ◽

Rate Constant ◽

Organic Pollutant ◽

Decomposition Reactions

Abstract The paper presents studies of the photocatalytic activity of tungsten oxide nanopowder agglomerates under the action of monochrome light in the decomposition reactions of an organic pollutant (methylene blue). It is determined that the radiation of 470 nm (blue) provides the highest values of the rate constant of phototransformation of methylene blue

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Influence of Activated Carbon in the Photodegradation of Methylene Blue

Eurasian Chemico-Technological Journal ◽

10.18321/ectj90 ◽

2011 ◽

Vol 14 (1) ◽

pp. 1

Author(s):

Juan Matos ◽

Karina Quintana ◽

Andreina Garcia

Keyword(s):

Methylene Blue ◽

Photocatalytic Activity ◽

Activated Carbon ◽

Rate Constant ◽

Activated Carbons ◽

Order Rate Constant ◽

First Order ◽

Order Rate

Photodegradation of methylene blue (MB) on TiO2 in presence of activated carbons (AC) was studied. Apparent first order rate constant for the degradation of MB was higher in presence of any AC indicating that the binary materials TiO2-AC showed a clear enhancement in the photocatalytic activity relative to TiO2 and this enhancement was associated with the properties of AC.

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Photocatalytic degradation of methylene blue from aqueous solutions using nanopillars-TiO2 thin films: Batch reactor studies

Science Vision ◽

10.33493/scivis.18.03.01 ◽

2018 ◽

Vol 18 (3) ◽

pp. 81-91 ◽

Cited By ~ 1

Author(s):

C. Lalhriatpuia

Keyword(s):

Thin Films ◽

Methylene Blue ◽

Photocatalytic Activity ◽

Organic Carbon ◽

Photocatalytic Degradation ◽

Batch Reactor ◽

Tio2 Thin Films ◽

Initial Concentration ◽

Bet Specific Surface Area ◽

Interfering Ions

Nanopillars-TiO2 thin films was obtained on a borosilicate glass substrate with (S1) and without (S2) polyethylene glycol as template. The photocatalytic behaviour of S1 and S2 thin films was assessed inthe degradation of methylene blue (MB) dye from aqueous solution under batch reactor operations. The thin films were characterized by the SEM, XRD, FTIR and AFM analytical methods. BET specific surface area and pore sizes were also obtained. The XRD data confirmed that the TiO2 particles are in its anatase mineral phase. The SEM and AFM images indicated the catalyst is composed with nanosized pillars of TiO2, evenly distributed on the surface of the substrate. The BET specific surface area and pore sizes of S1 and S2 catalyst were found to be 5.217 and 1.420 m2/g and 7.77 and 4.16 nm respectively. The photocatalytic degradation of MB was well studied at wide range of physico-chemical parameters. The effect of solution pH (pH 4.0 to 10.0) and MB initial concentration (1.0 to 10.0 mg/L) was extensively studied and the effect of several interfering ions, i.e., cadmium nitrate, copper sulfate, zinc chloride, sodium chloride, sodium nitrate, sodium nitrite, glycine, oxalic acid and EDTA in the photocatalytic degradation of MB was demonstrated. The maximum percent removal of MB was observed at pH 8.0 beyond which it started decreasing and a low initial concentration of the pollutant highly favoured the photocatalytic degradation using thin films and the presence of several interfering ions diminished the photocatalytic activity of thin films to some extent. The overall photocatalytic activity was in the order: S2 > S1 > UV. The photocatalytic degradation of MB was followed the pseudo-first-order rate kinetics. The mineralization of MB was studied with total organic carbon measurement using the TOC (total organic carbon) analysis.

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