Calcium alginate-TiO2/SiO2 nanocomposite for glucose conversion to 5-hydroxymethylfurfural

I. Lestari; H. Helmiyati

doi:10.1088/1757-899X/763/1/012037

Calcium alginate-TiO₂/SiO₂ nanocomposite for glucose conversion to 5-hydroxymethylfurfural

I. Lestari, H. Helmiyati

Research output: Contribution to journal › Conference article › peer-review

4 Citations (Scopus)

Abstract

The sodium alginate biopolymer used to form calcium alginate-TiO2/SiO2 nanocomposite has been successfully synthesized. The first stage is synthesis of TiO2/SiO2 composites by the sol-gel method using tetraethyl orthosilicate (TEOS) and titanium isopropoxide (TTIP) precursors. Calcium alginate nanocomposite is formed from the crosslinking process between Ca²⁺ ions from CaCl₂.2H₂O with sodium alginate combined with TiO₂/SiO₂ composites, characterized by Fourier Transform Infrared (FTIR), Scanning Electron Microscopy (SEM) and Tunneling Electron Microscopy (TEM). The average particle size of TiO₂/SiO₂ composite on the surface of calcium alginate obtained by TEM is about 50 nm. The application of calcium alginate-TiO₂/SiO₂ nanocomposite as catalyst is used for conversion of glucose into 5-hydroxymethylfurfural (HMF) using dimethyl sulfoxide (DMSO) solvents. The best glucose conversion obtained at 140 °C for 4 hours is 97 % and optimum HMF yield obtained at 140 °C and 5 hours is 40 %. Nanocomposites based on sodium alginate biopolymers combined with TiO₂/SiO₂ composites can be developed as new superior materials and promising catalysts because it is easily obtained and biodegradable.

Original language	English
Article number	012037
Journal	IOP Conference Series: Materials Science and Engineering
Volume	763
Issue number	1
DOIs	https://doi.org/10.1088/1757-899X/763/1/012037
Publication status	Published - 28 Apr 2020
Event	3rd International Symposium on Current Progress in Functional Materials 2018, ISCPFM 2018 - Depok, Indonesia Duration: 8 Aug 2018 → 9 Aug 2018

Keywords

biodegradable
glucose
HMF
nanocomposite
sodium alginate

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10.1088/1757-899X/763/1/012037

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title = "Calcium alginate-TiO2/SiO2 nanocomposite for glucose conversion to 5-hydroxymethylfurfural",

abstract = "The sodium alginate biopolymer used to form calcium alginate-TiO2/SiO2 nanocomposite has been successfully synthesized. The first stage is synthesis of TiO2/SiO2 composites by the sol-gel method using tetraethyl orthosilicate (TEOS) and titanium isopropoxide (TTIP) precursors. Calcium alginate nanocomposite is formed from the crosslinking process between Ca2+ ions from CaCl2.2H2O with sodium alginate combined with TiO2/SiO2 composites, characterized by Fourier Transform Infrared (FTIR), Scanning Electron Microscopy (SEM) and Tunneling Electron Microscopy (TEM). The average particle size of TiO2/SiO2 composite on the surface of calcium alginate obtained by TEM is about 50 nm. The application of calcium alginate-TiO2/SiO2 nanocomposite as catalyst is used for conversion of glucose into 5-hydroxymethylfurfural (HMF) using dimethyl sulfoxide (DMSO) solvents. The best glucose conversion obtained at 140 °C for 4 hours is 97 % and optimum HMF yield obtained at 140 °C and 5 hours is 40 %. Nanocomposites based on sodium alginate biopolymers combined with TiO2/SiO2 composites can be developed as new superior materials and promising catalysts because it is easily obtained and biodegradable.",

keywords = "biodegradable, glucose, HMF, nanocomposite, sodium alginate",

author = "I. Lestari and H. Helmiyati",

note = "Funding Information: Ac k n o wle d g e m e n ts This research was supported by PITTA grant University of Indonesia for fiscal year 2018. Publisher Copyright: {\textcopyright} 2020 Published under licence by IOP Publishing Ltd.; 3rd International Symposium on Current Progress in Functional Materials 2018, ISCPFM 2018 ; Conference date: 08-08-2018 Through 09-08-2018",

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T1 - Calcium alginate-TiO2/SiO2 nanocomposite for glucose conversion to 5-hydroxymethylfurfural

AU - Lestari, I.

AU - Helmiyati, H.

N1 - Funding Information: Ac k n o wle d g e m e n ts This research was supported by PITTA grant University of Indonesia for fiscal year 2018. Publisher Copyright: © 2020 Published under licence by IOP Publishing Ltd.

PY - 2020/4/28

Y1 - 2020/4/28

N2 - The sodium alginate biopolymer used to form calcium alginate-TiO2/SiO2 nanocomposite has been successfully synthesized. The first stage is synthesis of TiO2/SiO2 composites by the sol-gel method using tetraethyl orthosilicate (TEOS) and titanium isopropoxide (TTIP) precursors. Calcium alginate nanocomposite is formed from the crosslinking process between Ca2+ ions from CaCl2.2H2O with sodium alginate combined with TiO2/SiO2 composites, characterized by Fourier Transform Infrared (FTIR), Scanning Electron Microscopy (SEM) and Tunneling Electron Microscopy (TEM). The average particle size of TiO2/SiO2 composite on the surface of calcium alginate obtained by TEM is about 50 nm. The application of calcium alginate-TiO2/SiO2 nanocomposite as catalyst is used for conversion of glucose into 5-hydroxymethylfurfural (HMF) using dimethyl sulfoxide (DMSO) solvents. The best glucose conversion obtained at 140 °C for 4 hours is 97 % and optimum HMF yield obtained at 140 °C and 5 hours is 40 %. Nanocomposites based on sodium alginate biopolymers combined with TiO2/SiO2 composites can be developed as new superior materials and promising catalysts because it is easily obtained and biodegradable.

AB - The sodium alginate biopolymer used to form calcium alginate-TiO2/SiO2 nanocomposite has been successfully synthesized. The first stage is synthesis of TiO2/SiO2 composites by the sol-gel method using tetraethyl orthosilicate (TEOS) and titanium isopropoxide (TTIP) precursors. Calcium alginate nanocomposite is formed from the crosslinking process between Ca2+ ions from CaCl2.2H2O with sodium alginate combined with TiO2/SiO2 composites, characterized by Fourier Transform Infrared (FTIR), Scanning Electron Microscopy (SEM) and Tunneling Electron Microscopy (TEM). The average particle size of TiO2/SiO2 composite on the surface of calcium alginate obtained by TEM is about 50 nm. The application of calcium alginate-TiO2/SiO2 nanocomposite as catalyst is used for conversion of glucose into 5-hydroxymethylfurfural (HMF) using dimethyl sulfoxide (DMSO) solvents. The best glucose conversion obtained at 140 °C for 4 hours is 97 % and optimum HMF yield obtained at 140 °C and 5 hours is 40 %. Nanocomposites based on sodium alginate biopolymers combined with TiO2/SiO2 composites can be developed as new superior materials and promising catalysts because it is easily obtained and biodegradable.

KW - biodegradable

KW - glucose

KW - HMF

KW - nanocomposite

KW - sodium alginate

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Y2 - 8 August 2018 through 9 August 2018

ER -

Calcium alginate-TiO₂/SiO₂ nanocomposite for glucose conversion to 5-hydroxymethylfurfural

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Keywords

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