دورية أكاديمية
أعرض في EDS

Poly (Vinyl Alcohol) Hydrogels Boosted with Cross-Linked Chitosan and Silver Nanoparticles for Efficient Adsorption of Congo Red and Crystal Violet Dyes.

التفاصيل البيبلوغرافية
العنوان: Poly (Vinyl Alcohol) Hydrogels Boosted with Cross-Linked Chitosan and Silver Nanoparticles for Efficient Adsorption of Congo Red and Crystal Violet Dyes.
المؤلفون: Alfuraydi RT; Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia., Al-Harby NF; Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia., Alminderej FM; Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia., Elmehbad NY; Department of Chemistry, Faculty of Science and Arts, Najran University, Najran 55461, Saudi Arabia., Mohamed NA; Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia.; Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt.
المصدر: Gels (Basel, Switzerland) [Gels] 2023 Nov 07; Vol. 9 (11). Date of Electronic Publication: 2023 Nov 07.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: MDPI AG Country of Publication: Switzerland NLM ID: 101696925 Publication Model: Electronic Cited Medium: Internet ISSN: 2310-2861 (Electronic) Linking ISSN: 23102861 NLM ISO Abbreviation: Gels Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: Basel, Switzerland : MDPI AG, [2015]-
مستخلص: In our previous work, three different weight ratios of chitosan/PVA (1:3, 1:1, and 3:1) were blended and then cross-linked with trimellitic anhydride isothiocyanate (TAI) at a concentration depending on their chitosan content, obtaining three hydrogels symbolized by H 13 , H 11 , and H 31 . Pure chitosan was cross-linked with TAI, producing a hydrogel symbolized by H 10 . Further, three H 31 -based silver nanoparticles composites (H 31 /AgNPs1%, H 31 /AgNPs3%, and H 31 /AgNPs5%) were also synthesized. They were investigated, for the first time in this study, as adsorbents for Congo Red (CR) and Crystal Violet (CV) dyes. The removal efficiency of CR dye increased with increasing H 10 content in the hydrogels, and with increasing AgNP content in the composites, reaching 99.91% for H 31 /AgNPs5%. For CV dye, the removal efficiency increased with the increase in the PVA content. Furthermore, the removal efficiency of CV dye increased with an increasing AgNP content, reaching 94.7% for H 31 /AgNPs5%. The adsorption capacity increased with the increase in both the initial dye concentration and temperature, while with an increasing pH it increased in the case of CV dye and decreased in the case of CR dye. The adsorption of CV dye demonstrated that the Freundlich isotherm model is better suited for the experimental results. Moreover, the results were best fitted with pseudo-second-order kinetic model.
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فهرسة مساهمة: Keywords: Congo Red dye; Crystal Violet dye; PVA/chitosan blend-based hydrogels; adsorption studies; cross-linking; silver nano bio-composites
تواريخ الأحداث: Date Created: 20231124 Latest Revision: 20231127
رمز التحديث: 20240628
مُعرف محوري في PubMed: PMC10670830
DOI: 10.3390/gels9110882
PMID: 37998972
قاعدة البيانات: MEDLINE
الوصف
تدمد:2310-2861
DOI:10.3390/gels9110882