Adsorptive removal of methyl orange and methylene blue from aqueous solution with a metal-organic framework material, iron terephthalate (MOF-235)

Haque, Enamul; Jun, Jong Won; Jhung, Sung Hwa

doi:10.1016/j.jhazmat.2010.09.035

Cited by 1,053 publications

(407 citation statements)

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“…[1][2][3] Degradation and removal of dye materials from contaminated water is very important, because the water quality is severely reduced by even quite slight color. Methyl orange (MO, C 14 H 14 N 3 NaO 3 S) is one of the well-known anionic dyes, and has been widely used in textile, printing, paper, food and pharmaceutical industries and research laboratories.…”

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Influence of TiO₂Surface Properties on Water Pollution Treatment and Photocatalytic Activity

Zeng

2013

Bulletin of the Korean Chemical Society

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Nowadays, waste water with color is plentifully generated from many industries including textile, leather, paper, printing, dye stuff, plastic and so on.1-3 Degradation and removal of dye materials from contaminated water is very important, because the water quality is severely reduced by even quite slight color. Methyl orange (MO, C 14 H 14 N 3 NaO 3 S) is one of the well-known anionic dyes, and has been widely used in textile, printing, paper, food and pharmaceutical industries and research laboratories.2 Methylene blue (MB, C 16 H 18 NSCl) is one of the most common dying materials for wood, silk and cotton.2,3 The structures of MO and MB are shown in Table 1. The degradation and removal of MO and MB from waste water is very important due to their toxicity and even carcinogenicity.The high photocatalytic activity of titanium oxide (TiO 2 ) has been well-documented in many literatures and widely used in purification of waste water.1-5 The TiO 2 (110) surface structures are shown in Figure 1 and it is believed that the surface structure is the most primitive and essential property that functions in photocatalytic activity.5,6 The studies on TiO 2 photocatalytic reactions have shown that the overall kinetics depend on both amount of adsorbed substrate on the surface be reduced or oxidized by photoexcited electron (e − ) or positive hole (h + ), respectively, and rate of geminate recombination of e − and h + . 4-6 Therefore, the different electric charge's influence of dye in aqueous heterogeneous suspensions may be complicated by possible competing reactions of direct photocatalyzed oxidation, dye photosensitized catalysis, and photolysis of the adsorbed dye.2,4,7-10 In this research, the dyes of MO and MB for reasons stated above were selected, respectively representing anionic dye and cationic dye, to study the TiO 2 photocatalytic reactions properties. ExperimentalMaterials. The dyes of MB and MO, the anatase TiO 2 (S bet = 43 m 2 /g), and the other chemicals were of AR (Analytical reagent) grade and procured from Sinopharm Chemical Reagent Co., Ltd. (China). Distilled water was used to prepare the solutions. A Degussa P25 catalyst provided by the Degussa Company (Germany) was used without further modification throughout this work. Its main physical parameters are as follows: S bet = 65 m 2 /g; average primary particle size, around 20 nm; purity, > 99%; anatase/rutile content (w/w), 80:20. The XRD patterns of the anatase TiO 2 (a) and P25 powders (b) were shown in Figure 2. Adsorbed of OH − or H + ions. To research the surface characteristics of the TiO 2 particles, we had determined the pH change of aqueous solution due to the desorption of the different electric charges OH ions or H + ions on the TiO 2 surface, in the range of pH 0 from ca. 1 to 13. The initial pH 0 at 25°C represented by the pH value of an 20 mL aqueous solution of HNO 3 or NaOH; the final pH 1 is the pH value after aging at 25°C for 2 h, to be mixed with 1 g of (a) anatase TiO 2 or (b) P25 powders.7-9 From the intersection between the pH 0...

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“…Methyl orange (MO, C 14 H 14 N 3 NaO 3 S) is one of the well-known anionic dyes, and has been widely used in textile, printing, paper, food and pharmaceutical industries and research laboratories. 2 Methylene blue (MB, C 16 H 18 NSCl) is one of the most common dying materials for wood, silk and cotton.…”

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Influence of TiO₂Surface Properties on Water Pollution Treatment and Photocatalytic Activity

Zeng

2013

Bulletin of the Korean Chemical Society

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“…The physiochemical properties of MOF materials can be turned with easy modifications or functionalization, which ultimately increases their usability in various applications, such as adsorption [20][21][22] separation [23] and catalysis [24] For example MOFs have recently been successfully used for fuel purification via adsorptive desulfurization [25][26][27] or denitrogenation [28][29][30]. MOFs have also been used for the aqueous-phase adsorption of different pollutants in water, such as heavy metals [31] phosphate [32] organics dyes [33][34][35][36] organic arsenic acids [37,38] bisphenol-A [39,40] and PPCPs (naproxen and clofibric acid) ) [41][42][43] from water. In this study, we used MIL-101, MIL-101-OH and Oxybenzone as representatives MOF and PPCP, respectively.…”

Section: (2-hydroxy-4-methoxyphenyl)-phenylmthanone [C14h12o2]mentioning

confidence: 99%

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2018

Asian Review of Environmental and Earth Sciences

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Oxybenzone, one of the most often detected pharmaceuticals and personal care products (PPCPS), from aqueous solutions and this PPCPs removal from water had been studied by using the highly porous metal-organic framework (MOF) ) MIL-101(Cr) and a modified MIL-101(Cr) called MIL-101-OH. Adsorption results showed that MIL-101-OH which contains functional group such as -OH, which was very effective for oxybenzone adsorption. The adsorption performance of MIL-101-OH over MIL-101-OH was found to be greater than that of MIL-101(Cr), which means the functionalization of primitive MOFs have a positive effect on adsorption. The kinetics of MIL-101-OH also showed higher result compare to MIL-101(Cr). So along with a high adsorption capacity and repaid adsorption which is important for commercial applications.

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“…Annually, approximately 710 5 tons of dyes are produced, and approximately 710 4 tons/year are discarded by industries, including the textile, rubber, food, paper and plastic industries [1][2][3] Because of their high organic matter concentrations and their intense colors, the effluents discarded by the food industry are an important source of pollution for water bodies. When discharged into streams, these effluents reduce the transmission ofsunlight into the depleted dissolved oxygen zone [4][5][6] and may cause changes in aquatic biota (particularly near the release point).Thus, it becomes necessary to remove these materials before they are mixed with natural and unpolluted water bodies [2].…”

Section: Introductionmentioning

confidence: 99%

“…When discharged into streams, these effluents reduce the transmission ofsunlight into the depleted dissolved oxygen zone [4][5][6] and may cause changes in aquatic biota (particularly near the release point).Thus, it becomes necessary to remove these materials before they are mixed with natural and unpolluted water bodies [2].…”

Section: Introductionmentioning

confidence: 99%

Removal of textile dye by mixed oxide-LDH: kinetics, isotherms of the adsorption and retention mechanisms studies

Sadik¹,

Lahkale²,

Hssaine³

2014

IOSRJESTFT

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Adsorptive removal of methyl orange and methylene blue from aqueous solution with a metal-organic framework material, iron terephthalate (MOF-235)

Cited by 1,053 publications

References 38 publications

Influence of TiO₂Surface Properties on Water Pollution Treatment and Photocatalytic Activity

Influence of TiO₂Surface Properties on Water Pollution Treatment and Photocatalytic Activity

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Removal of textile dye by mixed oxide-LDH: kinetics, isotherms of the adsorption and retention mechanisms studies

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Adsorptive removal of methyl orange and methylene blue from aqueous solution with a metal-organic framework material, iron terephthalate (MOF-235)

Cited by 1,053 publications

References 38 publications

Influence of TiO2Surface Properties on Water Pollution Treatment and Photocatalytic Activity

Influence of TiO2Surface Properties on Water Pollution Treatment and Photocatalytic Activity

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Removal of textile dye by mixed oxide-LDH: kinetics, isotherms of the adsorption and retention mechanisms studies

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Influence of TiO₂Surface Properties on Water Pollution Treatment and Photocatalytic Activity

Influence of TiO₂Surface Properties on Water Pollution Treatment and Photocatalytic Activity