Synthesis of Thermally Stable Psyllium Husk/4,4´-Diphenylmethane Diisocyanate-Based Polyurethanes for Effective and Selective Removal of Cationic Dyes.
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| Title: | Synthesis of Thermally Stable Psyllium Husk/4,4´-Diphenylmethane Diisocyanate-Based Polyurethanes for Effective and Selective Removal of Cationic Dyes. |
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| Authors: | Kriti1 (AUTHOR), Kumar, Kiran1 (AUTHOR) drkiran@hpuniv.ac.in, Ranote, Sunita2 (AUTHOR), Chauhan, Ghanshyam S.1 (AUTHOR), Chauhan, Sandeep1 (AUTHOR) sandeepchauhanin2020@gmail.com, Sharma, Sapna1 (AUTHOR) |
| Source: | Water, Air & Soil Pollution. May2025, Vol. 236 Issue 5, p1-22. 22p. |
| Subject Terms: | *Basic dyes, *Malachite green, *Physical & theoretical chemistry, *Wastewater treatment, *Orange peel, *Gentian violet |
| Abstract: | Dye-laden toxic wastewater generated from textile industries creates a huge problem of toxicity and disposal. Novel research involves biopolymer-based adsorption as the most commonly used remedial method. Herein, a novel psyllium-based polyurethane foam (Psy-PUF) adsorbent was synthesized through polyaddition reaction with 4,4´-Diphenylmethane Diisocyanate (MDI) in the presence of 1,4-diazabicyclo (2.2.2) octane (DABCO 33-LV, as the catalyst), triethanolamine (as the co-catalyst), silicone oil (as a surfactant), and orange peel powder (as a filler) to eliminate dye pollutants. Psy-PUF was characterized using several techniques. The TGA (Thermogravimetric analysis) showed the significant thermal stability of the synthesized Psy-PUF with the final decomposition temperature of 841 °C showing a tremendous increase compared to 601.9 °C for untreated psyllium. Psy-PUF was studied as an adsorbent in binary dye mixtures including cationic and anionic dyes, and the best-adsorbed dyes i.e., malachite green (MG) and crystal violet (CV) were studied. Psy-PUF demonstrated rapid adsorption with 56.38% (MG) and 61.02% (CV) adsorbed only within 20 min, reaching 96.04% and 93.58% for MG and CV, respectively, within 60 min. The adsorption of MG and CV followed pseudo-second-order kinetics with respective R2 values of 0.98747 and 0.98685. Moreover, the adsorption behavior of Psy-PUF aligned with the Langmuir isotherm, indicating qm of 229.35 mg. g−1 for MG and 223.71 mg. g−1 for CV. Psy-PUF exhibited remarkable regeneration for up to ten cycles with cumulative adsorption capacities (qmax) of 801.4 mg. g−1 and 760.3 mg. g−1 for MG and CV. Thus Psy-PUF is an economically viable, eco-friendly, biodegradable, and recyclable adsorbent, for removing harmful cationic dyes. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
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| Header | DbId: enr DbLabel: Energy & Power Source An: 185071175 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Synthesis of Thermally Stable Psyllium Husk/4,4´-Diphenylmethane Diisocyanate-Based Polyurethanes for Effective and Selective Removal of Cationic Dyes. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kriti%22">Kriti</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kumar%2C+Kiran%22">Kumar, Kiran</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> drkiran@hpuniv.ac.in</i><br /><searchLink fieldCode="AR" term="%22Ranote%2C+Sunita%22">Ranote, Sunita</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chauhan%2C+Ghanshyam+S%2E%22">Chauhan, Ghanshyam S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chauhan%2C+Sandeep%22">Chauhan, Sandeep</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> sandeepchauhanin2020@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Sharma%2C+Sapna%22">Sharma, Sapna</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Water%2C+Air+%26+Soil+Pollution%22">Water, Air & Soil Pollution</searchLink>. May2025, Vol. 236 Issue 5, p1-22. 22p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Basic+dyes%22">Basic dyes</searchLink><br />*<searchLink fieldCode="DE" term="%22Malachite+green%22">Malachite green</searchLink><br />*<searchLink fieldCode="DE" term="%22Physical+%26+theoretical+chemistry%22">Physical & theoretical chemistry</searchLink><br />*<searchLink fieldCode="DE" term="%22Wastewater+treatment%22">Wastewater treatment</searchLink><br />*<searchLink fieldCode="DE" term="%22Orange+peel%22">Orange peel</searchLink><br />*<searchLink fieldCode="DE" term="%22Gentian+violet%22">Gentian violet</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Dye-laden toxic wastewater generated from textile industries creates a huge problem of toxicity and disposal. Novel research involves biopolymer-based adsorption as the most commonly used remedial method. Herein, a novel psyllium-based polyurethane foam (Psy-PUF) adsorbent was synthesized through polyaddition reaction with 4,4´-Diphenylmethane Diisocyanate (MDI) in the presence of 1,4-diazabicyclo (2.2.2) octane (DABCO 33-LV, as the catalyst), triethanolamine (as the co-catalyst), silicone oil (as a surfactant), and orange peel powder (as a filler) to eliminate dye pollutants. Psy-PUF was characterized using several techniques. The TGA (Thermogravimetric analysis) showed the significant thermal stability of the synthesized Psy-PUF with the final decomposition temperature of 841 °C showing a tremendous increase compared to 601.9 °C for untreated psyllium. Psy-PUF was studied as an adsorbent in binary dye mixtures including cationic and anionic dyes, and the best-adsorbed dyes i.e., malachite green (MG) and crystal violet (CV) were studied. Psy-PUF demonstrated rapid adsorption with 56.38% (MG) and 61.02% (CV) adsorbed only within 20 min, reaching 96.04% and 93.58% for MG and CV, respectively, within 60 min. The adsorption of MG and CV followed pseudo-second-order kinetics with respective R2 values of 0.98747 and 0.98685. Moreover, the adsorption behavior of Psy-PUF aligned with the Langmuir isotherm, indicating qm of 229.35 mg. g−1 for MG and 223.71 mg. g−1 for CV. Psy-PUF exhibited remarkable regeneration for up to ten cycles with cumulative adsorption capacities (qmax) of 801.4 mg. g−1 and 760.3 mg. g−1 for MG and CV. Thus Psy-PUF is an economically viable, eco-friendly, biodegradable, and recyclable adsorbent, for removing harmful cationic dyes. [ABSTRACT FROM AUTHOR] |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=185071175 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s11270-025-07913-3 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 22 StartPage: 1 Subjects: – SubjectFull: Basic dyes Type: general – SubjectFull: Malachite green Type: general – SubjectFull: Physical & theoretical chemistry Type: general – SubjectFull: Wastewater treatment Type: general – SubjectFull: Orange peel Type: general – SubjectFull: Gentian violet Type: general Titles: – TitleFull: Synthesis of Thermally Stable Psyllium Husk/4,4´-Diphenylmethane Diisocyanate-Based Polyurethanes for Effective and Selective Removal of Cationic Dyes. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kriti – PersonEntity: Name: NameFull: Kumar, Kiran – PersonEntity: Name: NameFull: Ranote, Sunita – PersonEntity: Name: NameFull: Chauhan, Ghanshyam S. – PersonEntity: Name: NameFull: Chauhan, Sandeep – PersonEntity: Name: NameFull: Sharma, Sapna IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 00496979 Numbering: – Type: volume Value: 236 – Type: issue Value: 5 Titles: – TitleFull: Water, Air & Soil Pollution Type: main |
| ResultId | 1 |
