Alternative approaches for the synthesis of nano silica particles and their hybrid composites: synthesis, properties, and applications

Bazzi, Loubna; Hesemann, Peter; Laassiri, S.; Hankari, Samir El

doi:10.1007/s13762-023-04845-5

Cited by 7 publications

(3 citation statements)

References 220 publications

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“…Polymers 2024, 16 The experiment employed the pseudo-first-order and pseudo-second-order kinetic models for data fi ing. The results are displayed in Figure 14, and Table 2.…”

Section: Adsorption Isothermmentioning

confidence: 99%

“…An optimal approach to managing solid waste is through recycling and reuse, as it not only mitigates the effects of waste production but also allows for the utilization of these materials to address other environmental issues. Bazzi L. et al [16] examined the manufacturing of silica matrix composites using other sources, including mineral waste, agricultural waste, electronic waste, and industrial waste. They also assessed the potential for future development of these alternative sources.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and Adsorption Performance of Boron Adsorbents Derived from Modified Waste Feathers

Li,

Jiang,

Luo

et al. 2024

Polymers

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This research focuses on modifying discarded feathers by grafting glycidyl methacrylate (GMA) onto their surface through thiolation, followed by an epoxy ring-opening reaction with N-methyl-D-glucamine (NMDG) to synthesize feather-based boron adsorbents. Optimization of the adsorbent preparation conditions was achieved through single-factor experiments, varying temperature, time, GMA concentration, and initiator dosage. The synthesized adsorbent (F-g-GMA-NMDG) underwent characterization using Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and X-ray diffraction (XRD). The adsorption behavior of the adsorbent was studied, and its boron adsorption capacity at different temperatures was determined through static adsorption kinetic curves. Analysis of adsorption isotherms, kinetics, and thermodynamics was conducted. Results indicate that the boron adsorption process by F-g-GMA-NMDG follows a pseudo-second-order model. The adsorption process is endothermic, with higher temperatures promoting adsorption efficiency. Gibbs free energy (ΔG) confirms the spontaneity of the adsorption process. Enhanced adsorption efficacy was observed under neutral and acidic pH conditions. After four cycles, the adsorbent maintained its adsorption efficiency, demonstrating its stability and potential for reuse. This study provides novel insights into both the treatment of discarded feathers and the development of boron adsorbents.

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“…Polymers 2024, 16 The experiment employed the pseudo-first-order and pseudo-second-order kinetic models for data fi ing. The results are displayed in Figure 14, and Table 2.…”

Section: Adsorption Isothermmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation and Adsorption Performance of Boron Adsorbents Derived from Modified Waste Feathers

Li,

Jiang,

Luo

et al. 2024

Polymers

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“…However, the traditional silica extraction methods are reported to be hazardous to the environment as they involve the intensive use of chemicals, energy, and nonrenewable resources [ 24 ]. For this reason, attempts have recently been made to find alternative feedstocks for its production [ 25 ]. In this context, the exploitation of a lignocellulosic waste such as rice husk (RH) for nano-silica synthesis holds significant importance because it brings many advantages, such as the reduction in pollution and cost management related to the waste disposal and the minimization of the environmental impact of silica extraction.…”

Section: Introductionmentioning

confidence: 99%

Design of a 3D Amino-Functionalized Rice Husk Ash Nano-Silica/Chitosan/Alginate Composite as Support for Laccase Immobilization

et al. 2023

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Recycling of agro-industrial waste is one of the major issues addressed in recent years aimed at obtaining products with high added value as a future alternative to traditional ones in the per-spective of a bio-based and circular economy. One of the most produced wastes is rice husk and it is particularly interesting because it is very rich in silica, a material with a high intrinsic value. In the present study, a method to extract silica from rice husk ash (RHA) and to use it as a carrier for the immobilization of laccase from Trametes versicolor was developed. The obtained mesoporous nano-silica was characterized by X-ray diffraction (XRD), ATR-FTIR spectroscopy, Scanning Elec-tron Microscopy (SEM), and Energy Dispersive X-ray spectroscopy (EDS). A nano-silica purity of about 100 % was found. Nano-silica was then introduced in a cross-linked chitosan/alginate scaffold to make it more easily recoverable after reuse. To favor laccase immobilization into the composite scaffold, functionalization of the nano-silica with (γ-aminopropyl) triethoxysilane (APTES) was performed. The APTES/RHA nano-silica/chitosan/alginate (ARCA) composite al-lowed to obtain under mild conditions (pH 7, room temperature, 1.5 h reaction time) a robust and easily reusable solid biocatalyst with 3.8 U/g of immobilized enzyme which maintained 50 % of its activity after six reuses. The biocatalytic system, tested for syringic acid bioremediation, was able to totally oxidize the contaminant in 24 h.

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Siliceous waste material supported MOF-5 for carbon monoxide capture at low temperature

Dahlan,

Yee,

Shafawi

et al. 2024

Biomass Conv. Bioref.

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Alternative approaches for the synthesis of nano silica particles and their hybrid composites: synthesis, properties, and applications

Cited by 7 publications

References 220 publications

Preparation and Adsorption Performance of Boron Adsorbents Derived from Modified Waste Feathers

Preparation and Adsorption Performance of Boron Adsorbents Derived from Modified Waste Feathers

Design of a 3D Amino-Functionalized Rice Husk Ash Nano-Silica/Chitosan/Alginate Composite as Support for Laccase Immobilization

Siliceous waste material supported MOF-5 for carbon monoxide capture at low temperature

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