☆ 4.7 Article

Preparation and Characterization of a New Bis-Uracil Chitosan-Based Hydrogel as Efficient Adsorbent for Removal of Anionic Congo Red Dye

POLYMERS (2023)

Related references

Note: Only part of the references are listed.

Article Polymer Science

Design, Synthesis, and Characterization of Novel Bis-Uracil Chitosan Hydrogels Modified with Zinc Oxide Nanoparticles for Boosting Their Antimicrobial Activity

Rana A. A. Alharbi et al.

Summary: A new series of hydrogels were prepared by incorporating substituted bisuracil linkages between chitosan Schiff's base chains and between chitosan chains. The structure of the hydrogels was confirmed through various techniques. The inhibitory effects of the hydrogels against different microbes were studied, with ZnO nanoparticle composites showing the highest inhibition potency.

POLYMERS (2023)

Add to Collection

Article Chemistry, Applied

Construction of amino-thiol functionalized ion-imprinted chitosan for lead (II) ion removal

Jawza Sh Alnawmasi

Summary: In this study, an ion-imprinting technique was employed to create a lead ion-imprinted sorbent using a derivative of amino-thiol chitosan (Pb-ATCS). The synthetic steps involved amidizing chitosan with 3-Nitro-4-sulfanylbenzoic acid (NSB) units, selectively reducing the -NO2- residues to -NH2, and cross-linking with epichlorohydrin. The resulting sorbent showed a high affinity for Pb (II) ions and a maximum capacity of approximately 300 mg/g.

CARBOHYDRATE POLYMERS (2023)

Add to Collection

Article Multidisciplinary Sciences

Synthesized of Zeolite@Ag2O Nanocomposite as Superb Stability Photocatalysis Toward Hazardous Rhodamine B Dye from Water

Redouane Haounati et al.

Summary: In this study, a novel nanocomposite Zeolite@Ag2O (Zeo@Ag2O) was successfully prepared using an eco-friendly and economical approach. The obtained nanocomposite exhibited high photocatalytic efficiency for the removal of hazardous Rhodamine B dye from aqueous solution under visible light, attributed to the better adsorption ability and high effective separation of photogenerated electron-hole pairs.

ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING (2023)

Add to Collection

Article Polymer Science

Progress in preparation of thiolated, crosslinked, and imino-chitosan derivatives targeting specific applications

J. Alkabli

Summary: Chitosan's 'tunable' characteristics, with reactive hydroxyl and amine groups on its surface, make it a subject of interest for researchers worldwide. Modification approaches such as Schiff base condensation, crosslinking, and thiolation have shown amazing physicochemical characteristics and multidisciplinary applications, significantly enhancing the potentials of chitosan for various fields.

EUROPEAN POLYMER JOURNAL (2022)

Add to Collection

Review Chemistry, Physical

Low-cost adsorbents for environmental pollution control: a concise systematic review from the prospective of principles, mechanism and their applications

Maha A. Tony

Summary: The article highlights the importance of adsorption technology in environmental remediation, focusing on the concept of green adsorbents, their sources, and applications. It also discusses the basic principles of the adsorption process, the elimination of emerging pollutants, and the issue of recycling adsorbents.

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY (2022)

Add to Collection

Article Polymer Science

Synthesis and Characterization of Novel Uracil-Modified Chitosan as a Promising Adsorbent for Efficient Removal of Congo Red Dye

Nouf F. Al-Harby et al.

Summary: A novel uracil-modified chitosan (UCs) adsorbent has been successfully synthesized and its structure and adsorption performance have been studied. The results show that the adsorption capacity of UCs for anionic Congo Red dye is related to factors such as solution pH, dye concentration, and temperature. The adsorption process follows pseudo-second order and Elovich models, and involves multiple steps. The isotherm analysis indicates that the adsorption of CR dye by UCs follows the Langmuir model, suggesting monolayer adsorption. Thermodynamic analysis shows that the adsorption process is endothermic and leads to increased randomness in the system.

POLYMERS (2022)

Add to Collection

Article Materials Science, Biomaterials

Terephthalohydrazido cross-linked chitosan hydrogels: synthesis, characterization and applications

Noura Y. Elmehbad et al.

Summary: The two new hydrogels exhibit varying degrees of swelling at different pH levels and have higher activity against most microbes. Evaluation of their cytotoxicity impact on normal human cells shows they are safe. Their adsorption capacity towards heavy metal ions can be arranged as Co+2 > Ni+2 > Cu+2 > Cd+2.

INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS (2022)

Add to Collection

Article Biochemistry & Molecular Biology

Evaluation of the antimicrobial and anti-biofilm activity of novel salicylhydrazido chitosan derivatives impregnated with titanium dioxide nanoparticles

Noura Y. Elmehbad et al.

Summary: Two novel chitosan derivatives were prepared by incorporating salicylhydrazide into chitosan Schiff base (SCsSB) and chitosan (SCs). Two nanocomposites, SCs/TiO2-1% and SCs/TiO2-3%, were also prepared. Their structures were confirmed using elemental analyses, FTIR, XRD, SEM, EDX and TEM. The new chitosan derivatives exhibited strong antimicrobial and anti-biofilm activities, with low minimum inhibitory concentrations against various bacteria and fungi. This research provides a new approach for the development of new antimicrobial agents.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2022)

Add to Collection

Article Chemistry, Physical

Design, Synthesis and Adsorption Evaluation of Bio-Based Lignin/Chitosan Beads for Congo Red Removal

Xiaobing Han et al.

Summary: Morphology and intermolecular interaction are important factors in the design of efficient dye adsorbents. In this study, millimeter-sized bead-type adsorbents based on lignin/chitosan were designed for the removal of Congo red. The adsorbents showed high adsorption capacity and removal rate due to electrostatic attraction, pi-pi stacking, and hydrogen bonding. The results also showed that the 20 wt% Lig/CS beads had the highest adsorption capacity and removal rate, and the adsorbents exhibited good recyclability.

MATERIALS (2022)

Add to Collection

Article Polymer Science

Evaluation of Antimicrobial and Anti-Biofilm Formation Activities of Novel Poly(vinyl alcohol) Hydrogels Reinforced with Crosslinked Chitosan and Silver Nano-Particles

Reem T. Alfuraydi et al.

Summary: Novel hydrogels prepared by blending chitosan and poly(vinyl alcohol) with added silver nanoparticles significantly enhanced antimicrobial and anti-biofilm activities. H-31/AgNPs with 5% and 3% AgNPs showed stronger antibacterial effects against most tested microbes compared to other samples.

POLYMERS (2022)

Add to Collection

Review Energy & Fuels

A comprehensive review on application of plant-based bioadsorbents for Congo red removal

Kashif Manzoor et al.

Summary: This review elaborates on the role of plant-based bioadsorbents in the removal of CR dye through the most efficient method of adsorption, with a critical comparison of different bioadsorbents through their isothermal, kinetic, and thermodynamic studies. It highlights the cost-effectiveness and green nature of bioadsorbents, making them a promising choice for wastewater treatment.

BIOMASS CONVERSION AND BIOREFINERY (2022)

Add to Collection

Article Materials Science, Paper & Wood

"GREEN SYNTHESIS OF NANO-SILVER/SODIUM ALGINATE/CARBOXYMETHYL XANTHAN GUM HYDROGEL AND EVALUATION OF ITS ANTI-INFLAMMATORY AND ANTI-Helicobacter pylori ACTIVITY "

NOURA Y. ELMEHBAD et al.

CELLULOSE CHEMISTRY AND TECHNOLOGY (2022)

Add to Collection

Article Multidisciplinary Sciences

Design, characterization, and adsorption properties of Padina gymnospora/zeolite nanocomposite for Congo red dye removal from wastewater

Asmaa Ragab Dryaz et al.

Summary: The study investigated the use of a zeolite-algae composite for removing congo red dye from industrial wastewater, showing higher efficiency than zeolite alone. Computational and experimental results demonstrated the energetic favorability of adsorption and the effectiveness of the composite at low dye concentrations. The field experiments confirmed the composite's potential for eco-friendly removal of dyes from industrial wastewater.

SCIENTIFIC REPORTS (2021)

Add to Collection

Article Polymer Science

Adsorption Behavior of Methylene Blue Dye by Novel CrossLinked O-CM-Chitosan Hydrogel in Aqueous Solution: Kinetics, Isotherm and Thermodynamics

Nouf Faisal Alharby et al.

Summary: The chemical cross-linking of carboxymethyl chitosan was used to obtain a novel hydrogel for efficient removal of Methylene Blue dye from aqueous solution. Factors such as temperature and pH were found to significantly impact the adsorption capacity of the hydrogel, with higher temperatures and pH values leading to increased adsorption. The pseudo-second-order mechanism was found to be predominant in the adsorption process, with the Langmuir model showing high applicability.

POLYMERS (2021)

Add to Collection

Review Biochemistry & Molecular Biology

A review on chitosan and chitosan-based bionanocomposites: Promising material for combatting global issues and its applications

Motia Azmana et al.

Summary: This article discusses the attempts to replace petrochemical products with renewable and biodegradable components, with a focus on chitosan as a unique bio-based polymer with excellent intrinsic properties. Chitosan-based materials have been successfully utilized in nanotechnology, leading to the development of bionanocomposites with improved physical and chemical characteristics. The review also highlights the future research scope and motivates researchers for outstanding research works in this field.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2021)

Add to Collection

Review Biochemistry & Molecular Biology

A Brief History of Colour, the Environmental Impact of Synthetic Dyes and Removal by Using Laccases

Leidy D. Ardila-Leal et al.

Summary: This article briefly delves into the history of color in social and artistic contexts, highlighting the importance of natural and synthetic dyes and their impact on the environment through the discharge of colored wastewater. The utility of laccase in treating colored wastewater before its release into water bodies is emphasized, with a focus on the stability, production factors, and biotechnological impact of laccases in removing color from contaminated water.

MOLECULES (2021)

Add to Collection

Article Chemistry, Multidisciplinary

Preparation, characterization and utilization of a novel dicationic molten salt as catalyst for the synthesis of bis(6-amino-1,3-dimethyluracil-5-yl)methanes

Abdolkarim Zare et al.

RESEARCH ON CHEMICAL INTERMEDIATES (2020)

Add to Collection

Article Green & Sustainable Science & Technology

Environment-friendly Juncus effusus-based adsorbent with a three-dimensional network structure for highly efficient removal of dyes from wastewater

Liangjun Xia et al.

JOURNAL OF CLEANER PRODUCTION (2020)

Add to Collection

Article Polymer Science

Strong alginate/reduced graphene oxide composite hydrogels with enhanced dye adsorption performance

Daijun Xiao et al.

POLYMER BULLETIN (2020)

Add to Collection

Article Polymer Science

Enhancement of adsorption of Congo red dye onto novel antimicrobial trimellitic anhydride isothiocyanate-cross-linked chitosan hydrogels

Nadia A. Mohamed et al.

POLYMER BULLETIN (2020)

Add to Collection

Article Biochemistry & Molecular Biology

Designing, preparation and evaluation of the antimicrobial activity of biomaterials based on chitosan modified with silver nanoparticles

Noura Y. Elmehbad et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2020)

Add to Collection

Article Engineering, Environmental

In-Situ Synthesis of ZnO Nanoparticles using Gum Arabic Based Hydrogels as a Self-template for Effective Malachite Green Dye Adsorption

Hemant Mittal et al.

JOURNAL OF POLYMERS AND THE ENVIRONMENT (2020)

Add to Collection

Article Engineering, Chemical

3,4-Dihydroxybenzoic acid removal from water by goethite modified natural sand column fixed-bed: experimental study and mathematical modeling

Hassan Ouachtak et al.

DESALINATION AND WATER TREATMENT (2020)

Add to Collection

Article Biochemistry & Molecular Biology

Synthesis and characterization of novel trimellitic anhydride isothiocyanate-cross linked chitosan hydrogels modified with multi-walled carbon nanotubes for enhancement of antimicrobial activity

Nadia A. Mohamed et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2019)

Add to Collection

Article Polymer Science

Novel chitosan and Laponite based nanocomposite for fast removal of Cd(II), methylene blue and Congo red from aqueous solution

Guobin Xu et al.

E-POLYMERS (2019)

Add to Collection

Article Materials Science, Multidisciplinary

Adsorption, equilibrium isotherm, and thermodynamic studies to the removal of acid orange 7

Zoya Zaheer et al.

MATERIALS CHEMISTRY AND PHYSICS (2019)

Add to Collection

Article Polymer Science

Impact of Crystalline Structural Differences Between α- and β-Chitosan on Their Nanoparticle Formation Via Ionic Gelation and Superoxide Radical Scavenging Activities

Yattra Jampafuang et al.

POLYMERS (2019)

Add to Collection

Article Nanoscience & Nanotechnology

Preparation of Graphene Oxide/Chitosan Pellets and Their Adsorption Properties for Congo Red

Qiuju Du et al.

INTERNATIONAL JOURNAL OF NANOSCIENCE (2019)

Add to Collection

Article Chemistry, Physical

Mobility and retention of phenolic acids through a goethite-coated quartz sand column

Hassan Ouachtak et al.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2018)

Add to Collection

Article Polymer Science

Bis-uracil based high efficient heat stabilizers used in super transparent soft poly (vinyl chloride)

Bozhen Wu et al.

POLYMER DEGRADATION AND STABILITY (2018)

Add to Collection

Article Chemistry, Physical

Super-adsorbent hydrogel for removal of methylene blue dye from aqueous solution

Xiao-Sai Hu et al.

JOURNAL OF MATERIALS CHEMISTRY A (2018)

Add to Collection

Review Engineering, Environmental

Efficiency of various recent wastewater dye removal methods: A review

Vanitha Katheresan et al.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2018)

Add to Collection

Article Chemistry, Physical

Liquid phase adsorption of Congo red dye on functionalized corn cobs

Adedamola Titi Ojedokun et al.

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY (2017)

Add to Collection

Article Materials Science, Biomaterials

Synthesis, characterization, and antimicrobial activity of chitosan hydrazide derivative

Nadia A. Mohamed et al.

INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS (2017)

Add to Collection

Article Engineering, Environmental

Adsorption of congo red dye onto antimicrobial terephthaloyl thiourea cross-linked chitosan hydrogels

Nouf F. El-Harby et al.

WATER SCIENCE AND TECHNOLOGY (2017)

Add to Collection

Article Materials Science, Biomaterials

Synthesis, characterization, and antimicrobial activity of chitosan hydrazide derivative

Nadia A. Mohamed et al.

INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS (2017)

Add to Collection

Review Chemistry, Medicinal

In search of uracil derivatives as bioactive agents. Uracils and fused uracils: Synthesis, biological activity and applications

Aleksandra Palasz et al.

EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY (2015)

Add to Collection

Article Materials Science, Biomaterials

Synthesis, characterization and application of biodegradable crosslinked carboxymethyl chitosan/poly(vinyl alcohol) clay nanocomposites

Magdy W. Sabaa et al.

MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS (2015)

Add to Collection

Article Biochemistry & Molecular Biology

Synthesis, Characterization, and Antimicrobial Activity of Carboxymethyl Chitosan-Graft-Poly(N-acryloyl, N′-cyanoacetohydrazide) Copolymers

Nadia A. Mohamed et al.

JOURNAL OF CARBOHYDRATE CHEMISTRY (2012)

Add to Collection

Article Chemistry, Organic

A Clean, Highly Efficient and One-Pot Green Synthesis of Aryl/Alkyl/Heteroaryl-Substituted Bis(6-amino-1,3-dimethyluracil-5-yl)methanes in Water

Subrata Das et al.

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY (2011)

Add to Collection

Review Chemistry, Multidisciplinary

Base-pairing mediated non-covalent polymers

Maher Fathalla et al.

CHEMICAL SOCIETY REVIEWS (2009)

Add to Collection

Review Chemistry, Organic

Advances in the Synthesis of 5- and 6-Substituted Uracil Derivatives

Javier I. Bardagi et al.

ORGANIC PREPARATIONS AND PROCEDURES INTERNATIONAL (2009)

Add to Collection

Article Chemistry, Multidisciplinary

A facile synthesis of pyrrolo[3,2-d]pyrimidines from 6-azidouracils and ylide phosphoranes

WM Abdou et al.

HETEROATOM CHEMISTRY (2002)

Add to Collection

© Peeref 2019-2024. All rights reserved.