The Influence of Rice Husk Additives on the Properties of Glass Based—Geopolymer at High Temperatures DOI Creative Commons

Shyma Hameed Mohammad,

Taha H. Abood Al-Saadi, Entihaa G. Daway

et al.

Material Design & Processing Communications, Journal Year: 2024, Volume and Issue: 2024(1)

Published: Jan. 1, 2024

Foaming or porous geopolymers can be utilized in various engineering applications, including heat and acoustic insulations, as well passive fire protection building materials. They are ecofriendly materials, no significant production power is required. In this study, possessing foaming features involving lightweight materials were successfully created through the reaction of sodium hydroxide solution 6 M with powder waste glass MG without/with rice husk (RH) 20 wt.% treated (212, 420, 600 μ m) agent. The effect ash (RHA) sizes RH additives on thermal treatment (volume weight changes, percentage), compressive strength, microstructure (pore content) was assessed. results show swelling (foaming behavior) for MG‐N6, MGB‐N6, MGR212‐N6, MGR600‐N6 at 550°C, unlike MGR420‐N6 formula. Also, a high‐volume change (percentage) paste 650°C noticed. Additionally, behavior (high volume expansion) appeared all thoughtful pastes after 750°C. loss specimens range 10%–27% high percentage changes MGR400‐N6 Low values strength (2.74–14.5 MPa) recorded formulas studied. These synthesized containing powder, resulting from highly recommended, mostly insulation demanding lightweight, porosity, low mechanical properties.

Language: Английский

Application of response surface methodology (RSM) for experimental optimization in biogenic silica extraction from rice husk and straw ash DOI Creative Commons

Yigezu Temesgen Zewide,

Temesgen Atnafu Yemata,

Adane Adugna Ayalew

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 2, 2025

Language: Английский

Citations

4
Effect of ultrasound-assisted method to enhance rice husk ash adsorption characteristics for paracetamol removal DOI
Letícia Reggiane de Carvalho Costa,

Keila Guerra Pacheco Nunes,

Vanessa Jurado-Davila

et al.

Environmental Nanotechnology Monitoring & Management, Journal Year: 2025, Volume and Issue: 23, P. 101045 - 101045

Published: Jan. 18, 2025

Language: Английский

Citations

1
Thermal, Wear, Mechanical, Water Absorption and Barrier Properties of Rice Husk Ash Si3N4 and Si2N2O Toughened Vinyl Ester Biocomposite Coating Material DOI

G. Prabhu,

Senthilkumar Krishnasamy,

L. Karthick

et al.

Waste and Biomass Valorization, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

Language: Английский

Citations

0
The Potential to Produce Bio-Based Ammonia Adsorbents from Lignin-Rich Residues DOI Creative Commons

Daniel Chernick,

Valerie Dupont,

Andrew B. Ross

et al.

Clean Technologies, Journal Year: 2025, Volume and Issue: 7(2), P. 30 - 30

Published: April 5, 2025

The ammonia adsorption capacity of lignin-rich biomass solids was tested for the first time at low partial pressures (<1.5 kPa) and 20 °C. samples included untreated tree barks, husks, peats, as well biochars produced by their slow pyrolysis. Proximate ultimate analyses, lignin content, metal content are also presented. biosolids had higher VM/FC ratios, molar H/C, O/C than treated (biochars biochars). A novel methodology is described safe generation gaseous predictable from tabletop-scale batch reaction experiments NaOH with (NH4)2SO4 in aqueous solution, leading to determination capacities low-cost experiments. Statistically significantly larger NH3 were obtained (p < 0.001). In contrast, found be poor adsorbers without further treatment. this study’s compared those common adsorbent types same conditions using existing literature through equilibrium model interpolation (Dubinin–Astakhov, Toth, Freundlich) or cubic spline fit graphical isotherms. Controls consisting commercially sourced activated carbons (AC) capacities, close derived similar materials, confirming methodology’s robustness. biosolids’ range reported silica, gamma-alumina, some doped ACs. They performed better undoped, work suggests such barks peats competent adsorbents.

Language: Английский

Citations

0
Agro-Waste Driven Green Synthesis and Characterization of Silver Nanoparticles Using Oryza sativa and Spent Coffea robusta DOI Creative Commons

Nithiskanna Nallusamy,

Nurul Affifah Mohd Kamal Rufadzil,

Jasvini Bala Murally

et al.

Food Technology and Biotechnology, Journal Year: 2025, Volume and Issue: 63(2)

Published: May 8, 2025

Research background. Agricultural waste was utilised to synthesise silver nanoparticles (AgNPs) via green synthesis, a sustainable alternative traditional synthesis techniques that use hazardous chemicals and extensive processing. AgNPs were produced from spent coffee grounds, Coffea robusta, rice husks, Oryza sativa, both prevalent agricultural wastes rich in bioactive substances including proteins, flavonoids, phenolic acids, which act as natural reducing agents. Experimental approach. The formation stability of confirmed using various methods. UV-Vis spectroscopy displayed surface plasmon resonance (SPR) peaks at 450 nm, signifying AgNP formation, while FTIR identified functional groups responsible for the bio-reduction stabilisation nanoparticles. XRD crystalline, face-centred cubic structure. Zeta potential analysis showed stable dispersion, particle size highlighted consistent sizing. antibacterial activity assessed by testing their effectiveness against gram-positive gram-negative bacteria. Results conclusions. Synthesis grounds husks biomolecules served effective stabilizing involved nanoparticle reduction stabilization, verified (FCC) crystalline measurements demonstrated dispersions, with sizes approximately 187 nm ground-AgNPs 198 husk-AgNPs. synthesized also exhibited strong Novelty scientific contribution. approach utilising agriculture such This study highlights innovative biomolecule-rich materials, producing properties, establishes foundation advancing nanotechnology applications.

Language: Английский

Citations

0
The Influence of Rice Husk Additives on the Properties of Glass Based—Geopolymer at High Temperatures DOI Creative Commons

Shyma Hameed Mohammad,

Taha H. Abood Al-Saadi, Entihaa G. Daway

et al.

Material Design & Processing Communications, Journal Year: 2024, Volume and Issue: 2024(1)

Published: Jan. 1, 2024

Foaming or porous geopolymers can be utilized in various engineering applications, including heat and acoustic insulations, as well passive fire protection building materials. They are ecofriendly materials, no significant production power is required. In this study, possessing foaming features involving lightweight materials were successfully created through the reaction of sodium hydroxide solution 6 M with powder waste glass MG without/with rice husk (RH) 20 wt.% treated (212, 420, 600 μ m) agent. The effect ash (RHA) sizes RH additives on thermal treatment (volume weight changes, percentage), compressive strength, microstructure (pore content) was assessed. results show swelling (foaming behavior) for MG‐N6, MGB‐N6, MGR212‐N6, MGR600‐N6 at 550°C, unlike MGR420‐N6 formula. Also, a high‐volume change (percentage) paste 650°C noticed. Additionally, behavior (high volume expansion) appeared all thoughtful pastes after 750°C. loss specimens range 10%–27% high percentage changes MGR400‐N6 Low values strength (2.74–14.5 MPa) recorded formulas studied. These synthesized containing powder, resulting from highly recommended, mostly insulation demanding lightweight, porosity, low mechanical properties.

Language: Английский

Citations

0