Preparation and characterization of sulphonated bio-adsorbent from waste hawthorn kernel for dye (MB) removal

Akköz, Yasin; Coşkun, Ramazan; Delibaş, Ali

doi:10.1016/j.molliq.2019.110988

Cited by 43 publications

(11 citation statements)

References 65 publications

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“…In the case of S-A L PEI, the degradation profile is much less marked: the wavelets are more difficult to detect. Similar observation was reported by Akköz et al [56] in the case of sulfonated-agriculture waste. The DTG shows a shoulder at 152.84°C (water release) and three valleys at 229.84, 293.91 and 370.89°C; the corresponding temperatures are lower than in the case of A L PEI.…”

Section: Thermogravimetric Analysissupporting

confidence: 90%

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Sulfonic-functionalized algal/PEI beads for scandium, cerium and holmium sorption from aqueous solutions (synthetic and industrial samples)

Hamza

Salih

Abdel‐Rahman

et al. 2021

Chemical Engineering Journal

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Section: Thermogravimetric Analysissupporting

confidence: 90%

“…Similar strong shift in pH PZC was reported for the sulfonation of agriculture wastes (hawthorn kernel) from 7 to 3.9 [56]. Urbano and Rivas [72] reported a pH PZC close to 3.4 for montmorillonite-polystyrene sulfonate/polyacrylamide glycolic acid composite.…”

Section: Surface Charge -Ph Pzcsupporting

confidence: 75%

Sulfonic-functionalized algal/PEI beads for scandium, cerium and holmium sorption from aqueous solutions (synthetic and industrial samples)

Hamza

Salih

Abdel‐Rahman

et al. 2021

Chemical Engineering Journal

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“…After the adsorption completed, PolyHIPE‐Na + was removed, and the residual solution was subjected to the measurement of UV–vis adsorption using UV–vis spectrophotometer at 664 nm. [ 34 ]…”

Section: Methodsmentioning

confidence: 99%

Biomass‐Derived Acetylenic Polymer Monoliths Prepared by High Internal Phase Emulsion Template Method and Used for Adsorbing Cationic Pollutants

Yang

Yong

Zhao

et al. 2021

Macro Chemistry & Physics

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A new type of biobased porous polymer monolith is prepared starting from biomass, ferulic acid (FA), via high internal phase emulsion (HIPE) template polymerization method. FA is transferred into an acetylenic monomer, which undergoes catalytic HIPE polymerization, eventually forming a porous monolith named as PolyHIPE. The phenolic hydroxyl groups in the monolith are functionalized with sodium hydroxide, forming PolyHIPE‐Na+ and meanwhile transforming the initial hydrophobic monolith into a hydrophilic one. The formation and structure of the monoliths are characterized with Fourier transform infrared (FT‐IR), NMR, and scanning electron microscope (SEM) techniques. The adsorption capacity of the monoliths is further investigated. PolyHIPE‐Na+ exhibits high adsorption capacity toward methylene blue (MB) and cetyltrimethylammonium bromide (CTAB) from simulated wastewater. The adsorption behavior of PolyHIPE‐Na+ is found to fit the pseudo second order kinetic model better. The adsorption isotherm can be well described by the Langmuir isotherm model. The maximum adsorption capacity for MB and CTAB are 1016 and 1390 mg g−1, respectively. The biobased FA derived monolithic adsorbent also shows desirable recycling usability and stability in adsorption−desorption cycles.

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“…In addition, its surface properties, such as surface area, pore volume and mean pore diameter (with micromeritic Gemini VII analyzer), and also pHpzc were determined too. All analysis details are given in our previous study 48 …”

Section: Methodsmentioning

confidence: 99%

Multifunctional amphoteric resin to remove both anionic and cationic dyes from aqueous solution

Coşkun

Öncel

Akköz

2021

J of Applied Polymer Sci

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This study reports the synthesis and characterization of a new amphoteric resin, which can be used for the removal of both cationic, methylene blue (MB) and anionic dyes, reactive red‐120 (RR‐120). The amphoteric resin was characterized by ATR‐FTIR, SEM–EDX, TGA/DTA, DLS, BET analysis and also its surface pHpzc was determined. The prepared resin has micro porous structure and its particle size was at the nano level. The prepared amphoteric resin showed high removal affinity for MB in both acidic and basic medium, while for RR‐120 high removal affinity in acidic medium. Moreover, it was observed that the amphoteric resin has exhibited almost 100% dye removal up to 600 ppm for MB and up to 300 ppm for RR‐120, respectively. The adsorption behavior of both dyes on the amphoteric resin is in agreement with the Langmuir isotherm and the pseudo‐second order kinetic model and also electrostatic interaction is dominant in adsorption. Its capacity was slightly low for the MB than that of the commercial activated carbon, but higher for the RR‐120. Furthermore, it was observed that the amphoteric resin almost did not lose its high removal efficiency in the concentrated matrix environment for both dyes. After five repeated adsorption–desorption cycles, the high removal efficiency of the resin for the MB (almost 100%) unchanged, but for the RR‐120 decreased to 83%.

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Preparation and characterization of sulphonated bio-adsorbent from waste hawthorn kernel for dye (MB) removal

Cited by 43 publications

References 65 publications

Sulfonic-functionalized algal/PEI beads for scandium, cerium and holmium sorption from aqueous solutions (synthetic and industrial samples)

Sulfonic-functionalized algal/PEI beads for scandium, cerium and holmium sorption from aqueous solutions (synthetic and industrial samples)

Biomass‐Derived Acetylenic Polymer Monoliths Prepared by High Internal Phase Emulsion Template Method and Used for Adsorbing Cationic Pollutants

Multifunctional amphoteric resin to remove both anionic and cationic dyes from aqueous solution

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