Recyclable Prussian Blue/Luffa Fiber for Efficient Selective Removal of Cesium and its Phytotoxicity Assessment DOI Creative Commons
Yan Zhao,

Wenqing Zhao,

Junqi Li

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 16, 2024

Abstract The emergency and safe treatment of radioactive substances leakage wastewater has attracted extensive attention. Prussian blue was used as an adsorbent for the purification wastewater. However, easy agglomeration due to its small size often limits application. With a large specific surface area, lignocellulosic material– luffa fiber could form networks loading particles enhance adsorption capacity. In this paper, recyclable blue/luffa prepared by in situ synthesis approach. Means such XRD, SEM, EDS, FTIR, XPS were applied characterize morphology physicochemical properties. It exhibited excellent selective removal efficiency Cs+ rapid separation from equilibrium kinetics followed Langmuir isotherm pseudo-second-order model with maximum capacity 102.01mg/g. Both pH temperature had effects on performance. still retained 71.2% after 3-cycle test, possible mechanism ion caging exchange. addition, presence co-existing ions only reduced rate less than 10.0%. Importantly, phytotoxicity assessment investigated results indicated that composite no obvious biotoxicity. is expected be potential material disposing

Language: Английский

Natural and Synthetic Polymers for Biomedical and Environmental Applications DOI Open Access
Galina Satchanska,

Slavena Davidova,

Petar Petrov

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(8), P. 1159 - 1159

Published: April 20, 2024

Natural and synthetic polymers are a versatile platform for developing biomaterials in the biomedical environmental fields. organic compounds that found nature. The most common natural include polysaccharides, such as alginate, hyaluronic acid, starch, proteins, e.g., collagen, silk, fibrin, bacterial polyesters. have already been applied numerous sectors, carriers drug delivery, tissue engineering, stem cell morphogenesis, wound healing, regenerative medicine, food packaging, etc. Various polymers, including poly(lactic acid), poly(acrylic poly(vinyl alcohol), polyethylene glycol, etc., biocompatible biodegradable; therefore, they studied controlled release systems, nano-carriers, dispersion of biofilms, gene delivery bio-ink 3D-printing, textiles agriculture, heavy metals removal, packaging. In following review, recent advancements polymer chemistry, which enable imparting specific functions will be discussed detail, antiviral, anticancer, antimicrobial activities. This work contains authors’ experimental contributions to applications. review is vast overview used fields, synthesis, isolation methods, critically assessessing their advantages, limitations, prospects.

Language: Английский

Citations

99
Preparation of Geopolymeric Materials from Industrial Kaolins, with Variable Kaolinite Content and Alkali Silicates Precursors DOI Open Access
Sergio Martínez‐Martínez,

Karima Bouguermouh,

Nedjima Bouzidi

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(8), P. 1839 - 1839

Published: April 16, 2024

In the present work, development of geopolymeric materials with Na or K based on industrial kaolin samples, variable kaolinite content and alkaline silicates, is studied. XRF, XRD, FTIR SEM-EDS have been used as characterization techniques. Three ceramic two from Algeria one Charente (France), considered. particular, chemical mineralogical revealed elements distinct Si Al, pure secondary minerals. Metakaolinite was obtained by grinding sieving raw at 80 μm then thermal activation 750 °C for 1 h. This metakaolinite has a base material to obtain geopolymers, using this purpose different formulations silicates NaOH KOH Si/K molar ratios. The formation hydroxylation polycondensation characterized Si/Al ratios, depending original content, demonstrated. Sodium carbonates detected XRD FTIR, confirmed SEM-EDS, in these geopolymer being products carbonation.

Language: Английский

Citations

4
Quaternary Ammonium and Pyridinium Salts as Modifiers of the Rheological Properties of Geopolymer Pastes DOI
Pavel Rovnanı́k, Tomáš Žižlavský

Advances in science and technology, Journal Year: 2025, Volume and Issue: 159, P. 3 - 11

Published: Jan. 15, 2025

The study investigates the impact of quaternary ammonium and pyridinium salts on rheological properties metakaolin-based geopolymer pastes, with a focus their application in 3D printing technology experimental results demonstrated that addition these increased both plastic viscosity yield stress mixtures, effect intensifying higher concentrations longer aliphatic chains. coefficient consistency derived from Herschel-Bulkley model 1.78 up to 3.83 Pa·s n rose 3.4 31.8 Pa. also observed shift shear-thickening shear-thinning behaviour reduction thixotropic dosages admixtures, which is beneficial for printing. mechanical modified mortars were tested revealed quite negligible admixtures flexural strength. compressive strength was slightly reduced by 12%. findings suggest are effective modifying geopolymers, making them more suitable advanced applications like

Language: Английский

Citations

0
Selective removal of cesium from wastewater by salt-resistant hydrogel fiber-supported Al-doped tin sulfide DOI
Can Liu, Xinru Li,

Haojie Ge

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 131760 - 131760

Published: Jan. 1, 2025

Language: Английский

Citations

0
Glycerol‐Assisted Modification of 3D‐Printed Zeolite (3D‐Ze/Gy) for Enhanced Methylene Blue Dye Removal in Aqueous Solutions DOI Open Access

Fauzi Muhammad Ikhsan,

Sephia Amanda Muhtar,

Rizky Aflaha

et al.

Advanced Engineering Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 19, 2025

Natural zeolite faces challenges in wastewater treatment due to poor mechanical stability, handling difficulties, and limited reusability. To address these limitations, structured is fabricated using 3D printing, with glycerol as a porogenic agent enhance porosity adsorption capacity. Scanning electron microscope–energy dispersive X‐ray spectroscopy confirms successful fabrication improves pore formation, while thermogravimetric/differential thermal analysis demonstrates stable properties. The pHpzc values are 7.43 (3D‐Ze/Gy50) 7.52 (3D‐Ze/Gy0), indicating minor surface charge changes after incorporation. Adsorption follows pseudo‐second‐order kinetic model (chemisorption) aligned the Langmuir isotherm, confirming monolayer on homogeneous surface. Thermodynamic reveals that process endothermic nonspontaneous at lower temperatures but becomes favorable higher temperatures. 3D‐Ze/Gy50 sample exhibits superior capacities of 1.35 mg g −1 15 L 2.04 25 Methylene blue concentrations outperform unmodified samples. Reusability tests show consistent performance over six cycles, regeneration achieved via resintering 600 °C for 2 h. These results validate potential 3D‐printed glycerol‐modified reusable, high‐performance adsorbent treatment, offering an innovative approach developing sustainable materials environmental remediation.

Language: Английский

Citations

0
Efficient selective removal of cesium using recyclable Prussian blue/luffa fiber: performance and phytotoxicity assessment insights DOI

Yan Zhao,

Wenqing Zhao,

Junqi Li

et al.

Environmental Monitoring and Assessment, Journal Year: 2025, Volume and Issue: 197(4)

Published: March 26, 2025

Language: Английский

Citations

0
Functional Nanoparticle Developments for 3D-Printed Biodegradable Implants- A Comprehensive Review DOI Creative Commons
Mohammad Jakir Hossain, Md Nazmussakib Shuvo, Safiullah Khan

et al.

Results in Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: 19, P. 100541 - 100541

Published: May 1, 2025

Language: Английский

Citations

0
Spark plasma sintering of cenosphere-derived Cs/Sr-aluminosilicates for 137Cs and 90Sr immobilization in mineral-like ceramics DOI
О. О. Шичалин, Tatiana A. Vereshchagina, I. Yu. Buravlev

et al.

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(5), P. 113893 - 113893

Published: Aug. 23, 2024

Language: Английский

Citations

2
Boosting Cesium Retention Efficiency with Polyoxometalate-Ionic Liquid Composites: Insights into {WO6} Octahedral Affinity DOI
Qina Sun, Mengzhou Wang, Yujia Yang

et al.

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: unknown, P. 143922 - 143922

Published: Oct. 1, 2024

Language: Английский

Citations

1
The Mechanical Properties of Geopolymers as a Function of Their Shaping and Curing Parameters DOI Creative Commons
Camille Zoude, Élodie Prud’homme, Kévyn Johannes

et al.

Ceramics, Journal Year: 2024, Volume and Issue: 7(3), P. 873 - 892

Published: June 25, 2024

This study investigates the impact of curing conditions, porosity and shaping techniques on mechanical properties metakaolin-based geopolymers. Geopolymers offer versatility in shaping, including 3D printing, yet influence conditions after printing remains unclear. is assessed by measuring bending 3D-printed geopolymer filaments cured under varied humidity temperature conditions. The influences technique are observed comparing compression molded samples various porosity. Samples at low exhibit unusually high properties, which decrease when moved from a dry to humid environment. behavior may be due presence PEG within composition and/or residual stresses too rapid evacuation water. High therefore necessary ensure optimal stable properties. Increasing helps accelerate geopolymerization without significantly compromising Direct ink writing offers design flexibility suitable porosity, but appear different failure mechanisms than samples. Additional studies understand interactions between as well better identify fracture

Language: Английский

Citations

1