Crop Residues as Potential Sustainable Precursors for Developing Silica Materials: A Review

Setiawan, Wahyu Kamal; Chiang, Kung Yuh

doi:10.1007/s12649-020-01126-x

Cited by 29 publications

(13 citation statements)

References 211 publications

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“…According to Setiawan and co‐workers, [ 265 ] different types of silica, as nanoparticles, mesoporous, or even amorphous, can be generated from crop residues. They generally present volatile matter in the composition (around 60‐86 wt%) and between 8 and 31 wt% of fixed carbon, being 22 wt% of ashes.…”

Section: Agriculture Wastesmentioning

confidence: 99%

Eco‐friendly polymer composites: A review of suitable methods for waste management

Cabrera

2021

Polymer Composites

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The amount of residues generated by agriculture, industrial, or urban activities continuously increases and, consequently, demands several methods for their correct management. The incorrect disposal can cause, in specific cases, environmental contamination by heavy metals or leaching as well as promote the spread of diseases as insect proliferation. Commonly, landfilling, incinerating, composting, or energy/fuel generation can control the disposal or reuse of residues. Among the methods for the reuse of wastes, the incorporation of residues as fillers in polymer composites has emerged as a distinct field. Some composites can potentially mitigate leaching compounds or improve mechanical, thermal, and acoustic properties. However, these improvements are a challenge to promote the use of waste fillers. Thus, this study aims to provide a state of view regarding a variety of wastes used as fillers in polymer composites and different methods to reach mechanical reinforcement as well as improve thermal conductivity and acoustic attenuation for future researches.

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Section: Agriculture Wastesmentioning

confidence: 99%

Eco‐friendly polymer composites: A review of suitable methods for waste management

Cabrera

2021

Polymer Composites

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“…Fillers, additives, desiccants, adsorbents, catalysts, mesoporous materials, nanocomposites, ceramics, biomedical sector, and heavy metal stabilization of incineration waste, are some of the elds in which value-added silica from RH could found an application. [23][24][25][26][27] On this basis, the objective of this work is to propose an ecomaterial extraction (amorphous silica), starting from RHPLA, that can be made in combination with P recovery. RHPLA, and more in general PLA, is a type of waste that obtained visibility for reuse in a very recent period, and for this reason, literature and studies are minimal, especially about characterisation and recovery.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous amorphous silica and phosphorus recovery from rice husk poultry litter ash

et al. 2021

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“…According to Setiawan and Chiang [8], the crops included a high concentration of silicon ash compounds. e teff straw ash is chemically constituted of a high amount of silicon compounds.…”

Section: Chemical Content Analysis Of the Teff Straw Ashmentioning

confidence: 99%

“…According to the study reported by Setiawan and Chiang [8], the sol-gel technique refers to the reaction of teff straw biomass with sodium hydroxide to produce sodium silicate, which is then precipitated using an acid solution. Various researches on various biomasses have been conducted utilizing the sol-gel technique.…”

Section: Introductionmentioning

confidence: 99%

Production and Optimization of Bio-Based Silica Nanoparticle from Teff Straw (Eragrostis tef) Using RSM-Based Modeling, Characterization Aspects, and Adsorption Efficacy of Methyl Orange Dye

Amibo

Beyan

Damite

2022

Journal of Chemistry

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The brown teff straw was utilized in this study to produce silica using the sol-gel technique. After pretreatment, the raw material of brown teff straw was characterized. The data were analyzed using the central composite design and response surface technique, and four independent parameters, namely, temperature, NaOH concentration, rotational speed, and extraction time, were evaluated for process optimization. Before extracting silica with an alkaline solution, the silica content in the ash was determined using an AAS spectrometer. The silica content of teff straw ash is around 92.89%. The ash was treated with NaOH solution in the concentrations range of 1 M to 3 M (0.5 M interval). The extraction time varied at intervals of 55, 70, 85, 100, and 115 minutes. Temperatures were changed using magnetic stirrer equipment in the range of 80°C to 100°C (5°C interval). At 350 rpm, 400 rpm, 450 rpm, 500 rpm, and 550 rpm, the rotating speed was adjusted. The best extraction conditions for amorphous silica were 1.50 M NaOH, 109.99 min, 94.98°C, and a rotating speed of 499.57 rpm, with a maximum yield of 85.85%. XRD and FTIR analyses were used to assess the physicochemical characteristics of the extracted silica. The aqueous solutions of methyl orange were used to test the adsorption efficiency of silica. The percent of removal efficiency for methyl orange was 90.48%.

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Crop Residues as Potential Sustainable Precursors for Developing Silica Materials: A Review

Cited by 29 publications

References 211 publications

Eco‐friendly polymer composites: A review of suitable methods for waste management

Eco‐friendly polymer composites: A review of suitable methods for waste management

Simultaneous amorphous silica and phosphorus recovery from rice husk poultry litter ash

Production and Optimization of Bio-Based Silica Nanoparticle from Teff Straw (Eragrostis tef) Using RSM-Based Modeling, Characterization Aspects, and Adsorption Efficacy of Methyl Orange Dye

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