Synthesis of Potassium Silicate Nanoparticles from Rice Straw Ash Using a Flame-assisted Spray-pyrolysis Method

Nandiyanto, Asep Bayu Dani; Permatasari, Novie; Sucahya, Transmissia Noviska; Abdullah, Ade Gafar; Hasanah, Lilik

doi:10.1088/1757-899x/180/1/012133

Cited by 9 publications

(7 citation statements)

References 13 publications

(10 reference statements)

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“…Among the multi‐peaks, the spectral peaks at the position of ca. 1630/810/790 cm −1 and 3430 cm −1 can be related to the symmetric stretching and out of plane bending vibrations of Si−O−Si, −OH, respectively [20] . Thus, all samples contain the Si−O−Si and −OH groups.…”

Section: Resultsmentioning

confidence: 96%

Diatomite Stabilized KOH: An Efficient Heterogeneous Catalyst for Cyclopentanone Self‐condensation

Sheng

Jia³

et al. 2020

ChemCatChem

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Aldol condensation of cyclopentanone is an attractive reaction for bio‐jet fuel production. KOH is an efficient homogeneous catalyst for aldol condensation but suffering the problem of separation. In this paper, a heterogeneous catalyst, diatomite stabilized KOH (KOH/diatomite) was prepared in a simple way (dry‐mixed impregnation process), and exhibited good activity (overall yield: 85.0 %) and reusability. To clarify the support effect of diatomite, KOH/SiO2 catalyst was also prepared. According to characterizations of these two catalysts, we suggest that the excellent catalytic activity of KOH/diatomite can be attributed to the formation of K−O−Si bond. In addition, the impurity elements existed in diatomite (e. g. CaO, Na2O, Al2O3) and higher BET surface areas may also benefit to this reaction. This study provides a new possibility for converting homogeneous catalyst (KOH) to heterogeneous catalyst (KOH/diatomite). In this way, KOH/diatomite performed excellent catalytic activity and exhibited stable reusability, which can avoid the problem of separation and pollution.

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Section: Resultsmentioning

confidence: 96%

Diatomite Stabilized KOH: An Efficient Heterogeneous Catalyst for Cyclopentanone Self‐condensation

Sheng

Jia³

et al. 2020

ChemCatChem

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“…The green approach to synthesizing silica from agricultural wastes has been crucial since it is cheaper, safer, and environmentally friendly than commercialized silica (Nandiyanto et al, 2017). The high purity of bio-based silica has been proven equivalent to commercialized silica, leaving its potential in multiapplications.…”

Section: Literature Reviewmentioning

confidence: 99%

“…The high percentage composition of K2O proved that OPDC is a nutrient-rich source of fertilizer, bio-compost, and animal feedstock. The presence of this element is an essential micro-nutrient for the agricultural sector because it helps to increase productivity, increase plant quality in terms of taste, shape, and color, and also enhances the defense mechanism in plants against adverse impacts of pests and the environment (Nandiyanto et al, 2017;Samantray et al, 2020).…”

Section: Sio2 (In Ash) + 2naohmentioning

confidence: 99%

Green Route Synthesis of Amorphous Silica from Oil Palm Decanter Cake: From Literature Review to Experiments

Rahim

Harun

Saeed

et al. 2022

Indonesian J. Sci. Technol

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Numerous agricultural wastes are well-defined as low-cost sources and rich in silica content. The residue of oil palm wastes combustion seems a promising silica source and can be recovered through a straightforward method. In this study, the combustion followed by an alkaline extraction method was employed to extract high purity of silica. The oven-dried oil palm decanter cake (DOPDC) was heated at combustion temperatures of 600, 700, 800, and 900°C to produce OPDC ashes (OPDCA), followed by an alkaline extraction using 5M of NaOH solution. Thermogravimetric analysis (TGA) was used to observe the thermal behavior of DOPDC where the suitable combustion temperatures to produce silica ranged between 600 and 1000 ℃. X-Ray Fluorescence (XRF) analysis showed that silica contents were 31-36% after combustion, increasing to 76.95% after the chemical treatment. Moreover, the spherical shape of the silica was observed through electron microscope analysis. It was represented by the aggregation of silica after going through chemical treatment. The X-Ray Diffraction analysis also proved that the amorphous silica was produced, characterized by the hump-shaped spectrum. The infrared analysis confirmed that the silica had been successfully extracted from OPDCA by the presence of silica functional groups shown in the spectrum.

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“…Lignocellulosic biomass is considered as future sustainable feedstock for chemicals (Permatasari et al, 2016). It consists of three major components, namely cellulose, hemicellulose, and lignin Nandiyanto et al, 2017). Due to their complicated structures, the biomass must be pretreated before undergo further processing.…”

Section: Introductionmentioning

confidence: 99%

“…The main goal of biomass pretreatment in biofuel plants is to prepare the cellulose fraction of the biomass for subsequent enzymatic hydrolysis and yeast fermentation processes (Farobie & Hasanah, 2016;Bilad, 2016). The hemicellulose fraction is also sometimes used depending on the technology provider of those subsequent processes (Nandiyanto et al, 2017). Hence, it is basically to make access, provide large surface area, and prepare cellulose and hemicellulose for the enzymes and the yeasts.…”

Section: Introductionmentioning

confidence: 99%

Lignocellulosic Biomass Pretreatment for Biorefinery: A Review

Putra

2018

Indonesian J. Sci. Technol

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Lignocellulosic biomass consists of cellulose, hemicellulose, and lignin, which have the potential to produce the so-called green chemicals. Many processes are available at different scales (e.g. labs, pilots, demos, commercials), utilizing lignocellulosic biomass as the raw material. Due to its complicated chemical structures, lignocellulosic biomass must be pretreated before it can be processed further. Simultaneous separation of cellulose, hemicellulose, and lignin from the biomass is an important step to maximize the full potential of the biomass. In this review, several well-known biomass pretreatment technologies are evaluated. These are low pH process (e.g. dilute acid, steam explosion, hot water liquid, and concentrated acid), high pH (e.g. NaOH, lime, NH3), organosolv, ozonolysis, CO2 explosion, and ionic liquids. The objective of this review is to understand how effective the pretreatment process for separating cellulose, hemicellulose, and lignin. Based on this review, organosolv is the only pretreatment process that is capable of separating cellulose, C5 sugars (from hemicellulose), and lignin, simultaneously. This process is currently at pilot scales of 30 – 100 ton per day of biomass feedstock.

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Synthesis of Potassium Silicate Nanoparticles from Rice Straw Ash Using a Flame-assisted Spray-pyrolysis Method

Cited by 9 publications

References 13 publications

Diatomite Stabilized KOH: An Efficient Heterogeneous Catalyst for Cyclopentanone Self‐condensation

Diatomite Stabilized KOH: An Efficient Heterogeneous Catalyst for Cyclopentanone Self‐condensation

Green Route Synthesis of Amorphous Silica from Oil Palm Decanter Cake: From Literature Review to Experiments

Lignocellulosic Biomass Pretreatment for Biorefinery: A Review

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