Sulfonate-functionalized nanoporous silica spheres as adsorbent for methylene blue

Zarezadeh-Mehrizi, Mansoureh; Badiei, Alireza; Shahbazi, Afsaneh

doi:10.1007/s11164-015-2230-z

Cited by 15 publications

(2 citation statements)

References 35 publications

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“…Sulfonate-functionalized MSNs (MSN-SO 3 ) were prepared according to the method reported by Badiei with little modification [44]. Firstly, the surface of P-MSN was functionalized by 3-glycidoxypropyltrimethoxysilane (GPTMS) using a post-grafting synthesis.…”

Section: Methodsmentioning

confidence: 99%

Sulfonate-Functionalized Mesoporous Silica Nanoparticles as Carriers for Controlled Herbicide Diquat Dibromide Release through Electrostatic Interaction

Shan

Cao

et al. 2019

IJMS

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Environmental stimuli-responsive pesticide release is desirable for enhanced efficiency and reduced side effects. In most cases, the loading and release of pesticides mainly depends on hydrophobic interactions and hydrogen bonding. Electrostatic interaction is less investigated as a weapon for achieving high loading content and controlled pesticide release. In this work, negative-charge decorated mesoporous silica nanoparticles (MSNs) were facilely fabricated by introducing sulfonate groups onto MSNs through a post-grafting method. Sulfonate-functionalized MSNs (MSN-SO3) were synthesized by conversion of epoxy group into sulfonate group using a bisulfite ion as a ring opening reagent. Diquat dibromide (DQ), one of the globally used quaternary ammonium herbicides, was efficiently loaded into these negatively charged MSN-SO3 nanoparticles. The loading content was increased to 12.73% compared to those using bare MSNs as carriers (5.31%). The release of DQ from DQ@MSN-SO3 nanoparticles was pH and ionic strength responsive, which was chiefly governed by the electrostatic interactions. Moreover, DQ@MSN-SO3 nanoparticles exhibited good herbicidal activity for the control of Datura stramonium L., and the bioactivity was affected by the ionic strength of the release medium. The strategy of cargo loading and release dependent on the electrostatic interactions could be generally used for charge-carrying pesticides using carriers possessing opposite charges to mitigate the potential negative impacts on the environment.

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Section: Methodsmentioning

confidence: 99%

Sulfonate-Functionalized Mesoporous Silica Nanoparticles as Carriers for Controlled Herbicide Diquat Dibromide Release through Electrostatic Interaction

Shan

Cao

et al. 2019

IJMS

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“…The ability of activated carbon to absorb MB, bromophenol blue, alizarine red-S, eriochrome black-T, malachite green, phenol red, and methyl violet from aqueous media was examined [13]. The elimination of MB with sulfonate-functionalized nano-porous silica spheres [14] and the removal of MB with jute ber carbon [15], carbon-doped graphitic carbon nitride [16], activated carbons [17], graphitic carbon nitride doped with the S-block metals [18], mesoporous carbon nitride [19], barium phosphate nano-ake [20], titania/gum tragacanth nanohydrogel [21], binary TiO 2 /reduced graphene oxide nanocomposite [22,23], diphenylanthrazoline compounds [24], soluble graphene nanosheets [25], graphene oxide/WO 3 nanorod composites [26], graphene oxide modi ed with Fe 3 O 4 nanoparticles [27], CdS nanostructures [28], and porous graphene wrapped SrTiO 3 nanocomposite [29] have been introduced earlier.…”

Section: Introductionmentioning

confidence: 99%

The first study of adsorption of methylene blue by Black Titania nanoparticle in aqueous solution

et al. 2022

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This study investigates the elimination of Methylene Blue (MB) by adsorption on Black Titania (B-TiO 2 ) in an aqueous solution in the dark room. B-TiO 2 was prepared via the reduction of white TiO2 by NaBH4 in a tube furnace under an inert gas atmosphere at 600 C. Characterization of the absorbent was carried out by X-Ray Di raction (XRD), N 2 adsorption-desorption, Scanning Electron Microscopy (SEM) mapping, photoluminescence, Energy Dispersive X-ray spectrometry (EDX) analysis, Zeta potential, Dynamic Light Scattering (DLS), and Fourier Transform Infrared Spectrometer (FT-IR). The maximum adsorption capacity of B-TiO2 was found to be 88.65 mg g 1 . The rate-limiting step was the intra-particle di usion stage. Maximum adsorption was observed under the following conditions: 26 mg of B-TiO 2 at pH 6 and MB concentration of 10 mg L 1 . It was demonstrated that B-TiO2 might be recycled six times with very good adsorption results while keeping its high removal e ciency.

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Preparation and characterization of strong cation exchange terpolymer resin as effective adsorbent for removal of disperse dyes

Bayramoğlu

Kunduzcu

Arıca

2019

Polymer Engineering & Sci

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In this study, (hydroxypropylmethacrylate‐co‐ethyleneglycol dimethacrylate‐co‐glycidylmetharylate) terpolymer resin functionalized with sulfonic acid groups was prepared and used as cation exchange resin for removal of two different disperse dyes (i.e., Direct Red R [DR‐R] and Disperse Violet 28 [DV‐28]) from aqueous solution. The properties of the adsorbent were determined using Fourier transform infrared, dynamic light scattering, scanning electron microscopy, and Brunauer, Emmett, and Teller methods. The maximum adsorption capacity of the resin for the DR‐R and DV‐28 was found to be 86.1 and 179.6 mg/g, respectively. Desorption study was realized to evaluate the reusability of the resin and the percent desorption from the resin for DR‐R and DV‐28 dyes was found to be approximately 89.4% and 91.7%, respectively. The experimental data were evaluated using different kinetics and isotherm models. These results show that the experimental data could be designated with the second‐order kinetic model and both Langmuir and Temkin isotherm models. Finally, the presented resin was able to remove large amounts of organic pollutants in a short process time with a low amount of adsorbent. Thus, it was shown that the prepared resin has high potential for use as an effective and sustainable adsorbent for the treatment of industrial wastewater. POLYM. ENG. SCI., 60:192–201, 2020. © 2019 Society of Plastics Engineers

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Sulfonate-functionalized nanoporous silica spheres as adsorbent for methylene blue

Cited by 15 publications

References 35 publications

Sulfonate-Functionalized Mesoporous Silica Nanoparticles as Carriers for Controlled Herbicide Diquat Dibromide Release through Electrostatic Interaction

Sulfonate-Functionalized Mesoporous Silica Nanoparticles as Carriers for Controlled Herbicide Diquat Dibromide Release through Electrostatic Interaction

The first study of adsorption of methylene blue by Black Titania nanoparticle in aqueous solution

Preparation and characterization of strong cation exchange terpolymer resin as effective adsorbent for removal of disperse dyes

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