Carbon-based strong solid acid for cornstarch hydrolysis

Nata, Iryanti Fatyasari; Irawan, Chairul; Mardina, Primata; Lee, Cheng‐Kang

doi:10.1016/j.jssc.2015.07.005

Cited by 50 publications

(44 citation statements)

References 13 publications

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“…The broad absorption band at approximately 3419 cm À1 corresponded to the stretching vibration of the hydroxyl groups. 9,31 The FT-IR spectrum of Sl-C-S-H 2 O 2 showed clearer and stronger signals from acidic functional groups (-COOH, -OH) than did the FT-IR spectrum of Sl-C-S.…”

Section: Characterization Of Catalystsmentioning

confidence: 94%

“…[6][7][8] Research on the preparation of solid acid catalysts and their utilization in lignocellulose conversion has been carried out in recent years with the hope of solving the problems brought on by liquid acid catalysis. 9 At present, the commonly used solid acids can be divided into the following categories: zeolite molecular sieves, 10 heteropoly acids, 11 metal oxides and their complexes, 12 inorganic acid salts, 13 strong acid cation exchange resins 14 and carbon-based solid acids. 15 Research on carbon-based solid acids has received wide attention due to the relatively higher catalytic efficiency, good stability, environmental friendliness, low price and renewability 16 of these catalysts.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and investigation of highly selective solid acid catalysts with sodium lignosulfonate for hydrolysis of hemicellulose in corncob

Shu

et al. 2018

RSC Adv.

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Section: Characterization Of Catalystsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Preparation and investigation of highly selective solid acid catalysts with sodium lignosulfonate for hydrolysis of hemicellulose in corncob

Shu

et al. 2018

RSC Adv.

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“…Keberadaan air memudahkan dan mempercepat katalis melepas H + melalui reaksi pertukaran ion serta mengurangi viskositas larutan sehingga penyebaran katalis pada sistem reaksi lebih merata. Hidrolisis tanpa katalis dengan media air juga dapat menghasilkan glukosa karena proses pemanasan dengan bantuan microwave pada daya tinggi disinyalir dapat membantu proses reaksi, seperti pada penelitian Nata et al (2015) yang menghasilkan glukosa 4,08 mg/mL dari 0,8 g pati dengan media air pada temperatur tinggi tanpa penggunaan katalis. Pemanasan dengan microwave juga dapat mempengaruhi jalur reaksi dengan meningkatkan laju reaksi karena peningkatan temperatur serta mengurangi kristalinitas selulosa sehingga efisiensi hidrolisis meningkat (Guo et al, 2012;Xu et al, 2011;Chen, Tu, & Sheen, 2011;Zhang & Zhao, 2009).…”

Section: Gambar 3 Spektra Ftir Karbon (K) Dan Karbon Aktif Tersulfonunclassified

Karakterisasi Dan Potensi Katalis Karbon Aktif Tersulfonasi Limbah Kayu Pada Reaksi Hidrolisis Sekam Padi Menggunakan Microwave

Efiyanti¹,

Sutanto²,

Hakimah³

et al. 2019

j.penelit.has.kehutan

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Lignocellulose biomass is a raw material for developing various promising products, such as wood waste, which can be used as raw material for the production of activated carbon as a catalyst. This research aims to characterize activated carbon for hydrolisis catalyst. In this study, the process of making activated carbon from mixed camphor and meranti wood was made through pyrolysis process at temperature of 500°C, followed by sulfonation using H 2 SO 4 10N on reflux. The sulfonated activated carbon product (KA-SO 3 H) was then characterized according to Indonesia National Standard (SNI) including recovery value, moisture content, ash content, fly ash, fixed carbon, iodine absorption, while acidity and functional groups were measured using amonia adsorption and FTIR analysis, respectively. Furthermore, the sulfonated activated carbon was tested for its application in the hydrolysis reaction of rice husks using microwave with vary rice husk weight namely 2, 4 ,6 ,8, and 10 g at 400 and 600 W for 5, 7, and 9 minutes, respectively. The filtrate was then analyzed for its glucose levels using the DNS method (Dinitrosalycilic acid). The optimum condition of the hydrolysis reaction using sulfonated activated carbon catalyst were 400 W power, 1:8 ratio of rice husk and catalyst in 9 minutes duration. The optimum condition produced 330.51 ppm glucose levels with glucose yield percentages was 61.97%, and required energy was 216 kJ.

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“…Recently, work on sulfonated solid acid catalysts has attracted great attention from researchers for the hydrolysis reaction of cornstarch (Nata et al, 2015;Nata et al, 2017b) and biodiesel production from waste cooking oil (Zong et al, 2007;Nata et al, 2017a). Performance in the reaction of carbon-derived catalysts is dependent on the precursor as raw materials for carbon production and treatment processes (Tao et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

One-step Synthesis to Enhance the Acidity of a Biocarbon-based Sulfonated Solid Acid Catalyst

Ma'rifah¹,

Nata²,

Wijayanti³

et al. 2019

IJTech

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The main purpose of this study is to produce and generate a solid acid catalyst from biomass with high reactivity that can be used in catalytical reactions such as hydrolysis, and is environmentally friendly and reusable. A biocarbon-based sulfonated catalyst was prepared by the carbonization of palm empty fruit bunches (PEFB), followed by sulfonation. In order to enhance the acidity of the biocarbon, different concentrations of hydroxyethylsulfonic acid were added to the solution during sulfonation at 180 o C for 4 h in a Teflon stainless steel autoclave. The H + ion capacity of the biocarbon-sulfonated acid catalyst (BSC) was increased twofold (3.57 mmol/g) in the presence of 10% of hydroxyethylsulfonic acid and 10% of acrylic acid. X-Ray Fluorescence (XRF) analysis showed that the BC-SO3H contained 38% of S. The original structure of the PEFB after carbonization disintegrated from the fibrous materials onto porous carbon. The crystalline index (CrI) of the PEFB significantly decreased to about 32% and a wide broad peak of a X-Ray Diffraction (XRD) pattern of around 2030 o were observed, which shows that an amorphous biocarbon structure had been identified. Fourier Transform Infra-Red (FT-IR) analysis confirmed that the-SO3H, COOH and-OH functional groups were deposited on the carbon due to specific peaks at around 1180 cm-1 , 1724 cm-1 and 3431 cm-1 , respectively. Decomposition of the sulfonic groups on the biocarbon-sulfonated solid catalyst was observed from 227.9 o C, as it shown by thermal gravimetric analysis (TGA).

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Carbon-based strong solid acid for cornstarch hydrolysis

Cited by 50 publications

References 13 publications

Preparation and investigation of highly selective solid acid catalysts with sodium lignosulfonate for hydrolysis of hemicellulose in corncob

Preparation and investigation of highly selective solid acid catalysts with sodium lignosulfonate for hydrolysis of hemicellulose in corncob

Karakterisasi Dan Potensi Katalis Karbon Aktif Tersulfonasi Limbah Kayu Pada Reaksi Hidrolisis Sekam Padi Menggunakan Microwave

One-step Synthesis to Enhance the Acidity of a Biocarbon-based Sulfonated Solid Acid Catalyst

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