Abstract
Graphene oxide (GO) was used as a catalyst support and for regeneration of a homogeneous catalyst in the catalytic conversion of glucose to lactic acid (LA). First, a solid base catalyst was prepared through the adsorption of Pb2+ ions by GO through ionic interaction with oxygenated groups of GO. The collected GO-Pb catalyst was characterized, demonstrating the successful loading of Pb2+ onto GO sheets using FTIR and XPS. The GO-Pb catalyst was subsequently used for the conversion of glucose into LA. A maximum LA yield of approximately 30% was achieved in 30 min. The catalyst demonstrated the ability to be used for at least five cycles. In contrast, the leached Pb2+ ions during the hydrothermal process were regenerated through adsorption with fresh GO. The regenerated catalyst demonstrated the possibility of the regenerated Pb2+ ions for further catalytic conversions of lactic acid. This study could be essential to produce valuable chemicals through the use of heterogeneous catalysts that are produced via a simple and environmental benign process.
| Original language | English |
|---|---|
| Pages (from-to) | 7133-7144 |
| Number of pages | 12 |
| Journal | BioResources |
| Volume | 12 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Nov 2017 |
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Keywords
- Adsorptions
- Catalyst regeneration
- Graphene oxide
- Microwave assisted
ASJC Scopus subject areas
- Environmental Engineering
- Bioengineering
- Waste Management and Disposal
Cite this
Graphene oxide as support and regenerative substrate for lead ions in catalytic conversion of lactic acid. / Chin, Siew Xian; Chook, Soon Wei; Chia, Chin Hua; Lau, Kam Sheng; Zakaria, Sarani; Tasirin, Siti Masrinda.
In: BioResources, Vol. 12, No. 4, 01.11.2017, p. 7133-7144.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Graphene oxide as support and regenerative substrate for lead ions in catalytic conversion of lactic acid
AU - Chin, Siew Xian
AU - Chook, Soon Wei
AU - Chia, Chin Hua
AU - Lau, Kam Sheng
AU - Zakaria, Sarani
AU - Tasirin, Siti Masrinda
PY - 2017/11/1
Y1 - 2017/11/1
N2 - Graphene oxide (GO) was used as a catalyst support and for regeneration of a homogeneous catalyst in the catalytic conversion of glucose to lactic acid (LA). First, a solid base catalyst was prepared through the adsorption of Pb2+ ions by GO through ionic interaction with oxygenated groups of GO. The collected GO-Pb catalyst was characterized, demonstrating the successful loading of Pb2+ onto GO sheets using FTIR and XPS. The GO-Pb catalyst was subsequently used for the conversion of glucose into LA. A maximum LA yield of approximately 30% was achieved in 30 min. The catalyst demonstrated the ability to be used for at least five cycles. In contrast, the leached Pb2+ ions during the hydrothermal process were regenerated through adsorption with fresh GO. The regenerated catalyst demonstrated the possibility of the regenerated Pb2+ ions for further catalytic conversions of lactic acid. This study could be essential to produce valuable chemicals through the use of heterogeneous catalysts that are produced via a simple and environmental benign process.
AB - Graphene oxide (GO) was used as a catalyst support and for regeneration of a homogeneous catalyst in the catalytic conversion of glucose to lactic acid (LA). First, a solid base catalyst was prepared through the adsorption of Pb2+ ions by GO through ionic interaction with oxygenated groups of GO. The collected GO-Pb catalyst was characterized, demonstrating the successful loading of Pb2+ onto GO sheets using FTIR and XPS. The GO-Pb catalyst was subsequently used for the conversion of glucose into LA. A maximum LA yield of approximately 30% was achieved in 30 min. The catalyst demonstrated the ability to be used for at least five cycles. In contrast, the leached Pb2+ ions during the hydrothermal process were regenerated through adsorption with fresh GO. The regenerated catalyst demonstrated the possibility of the regenerated Pb2+ ions for further catalytic conversions of lactic acid. This study could be essential to produce valuable chemicals through the use of heterogeneous catalysts that are produced via a simple and environmental benign process.
KW - Adsorptions
KW - Catalyst regeneration
KW - Graphene oxide
KW - Microwave assisted
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UR - http://www.scopus.com/inward/citedby.url?scp=85032657451&partnerID=8YFLogxK
U2 - 10.15376/biores.12.4.7133-7144
DO - 10.15376/biores.12.4.7133-7144
M3 - Article
VL - 12
SP - 7133
EP - 7144
JO - BioResources
JF - BioResources
SN - 1930-2126
IS - 4
ER -