The Synthesis Of Functionalized-Silica/Carbon Catalysts From Rice Husk For The Conversion Of Hexose Sugar Into Methyl Levulinate And 5-Hydroxymethylfurfural
Recently, silica/carbon composite material has received much attention in heterogeneous catalysis due to its unique hybrid properties. However, the difficulties in designing green synthetic methods remain challenging. In this study, varied proportion of silica/carbon heterogeneous catalyst was prepa...
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2018
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my-usm-ep.437592019-04-12T05:24:52Z The Synthesis Of Functionalized-Silica/Carbon Catalysts From Rice Husk For The Conversion Of Hexose Sugar Into Methyl Levulinate And 5-Hydroxymethylfurfural 2018-02 Syed Abd Kadir, Syed Muhammad Al-Amsyar QD1-999 Chemistry Recently, silica/carbon composite material has received much attention in heterogeneous catalysis due to its unique hybrid properties. However, the difficulties in designing green synthetic methods remain challenging. In this study, varied proportion of silica/carbon heterogeneous catalyst was prepared directly from rice husk by varying the carbonization temperatures (250, 300, 350, 400, and 450 °C). The prepared composites were functionalized separately with sulfonic acid and aluminium oxide giving the following catalysts: sulfonated-silica/carbon (SO3H-SiO2/C-250, SO3H-SiO2/C-300, SO3H-SiO2/C-350, SO3H-SiO2/C-400, SO3H-SiO2/C-450) and silica/carbon-supported aluminium oxide (Al-SiO2/C-350, Al-SiO2/C-400, and Al-SiO2/C-450). For the SO3H-SiO2/C catalysts, the XRD data confirms these composites were amorphous. 2018-02 Thesis http://eprints.usm.my/43759/ http://eprints.usm.my/43759/1/SYED%20MUHAMMAD%20AL-AMSYAR.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Sains Kimia |
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Universiti Sains Malaysia |
| collection |
USM Institutional Repository |
| language |
English |
| topic |
QD1-999 Chemistry |
| spellingShingle |
QD1-999 Chemistry Syed Abd Kadir, Syed Muhammad Al-Amsyar The Synthesis Of Functionalized-Silica/Carbon Catalysts From Rice Husk For The Conversion Of Hexose Sugar Into Methyl Levulinate And 5-Hydroxymethylfurfural |
| description |
Recently, silica/carbon composite material has received much attention in heterogeneous catalysis due to its unique hybrid properties. However, the difficulties in designing green synthetic methods remain challenging. In this study, varied proportion of silica/carbon heterogeneous catalyst was prepared directly from rice husk by varying the carbonization temperatures (250, 300, 350, 400, and 450 °C). The prepared composites were functionalized separately with sulfonic acid and aluminium oxide giving the following catalysts: sulfonated-silica/carbon (SO3H-SiO2/C-250, SO3H-SiO2/C-300, SO3H-SiO2/C-350, SO3H-SiO2/C-400, SO3H-SiO2/C-450) and silica/carbon-supported aluminium oxide (Al-SiO2/C-350, Al-SiO2/C-400, and Al-SiO2/C-450). For the SO3H-SiO2/C catalysts, the XRD data confirms these composites were amorphous. |
| format |
Thesis |
| qualification_name |
Doctor of Philosophy (PhD.) |
| qualification_level |
Doctorate |
| author |
Syed Abd Kadir, Syed Muhammad Al-Amsyar |
| author_facet |
Syed Abd Kadir, Syed Muhammad Al-Amsyar |
| author_sort |
Syed Abd Kadir, Syed Muhammad Al-Amsyar |
| title |
The Synthesis Of Functionalized-Silica/Carbon Catalysts From Rice Husk For The Conversion Of Hexose Sugar Into Methyl Levulinate And 5-Hydroxymethylfurfural |
| title_short |
The Synthesis Of Functionalized-Silica/Carbon Catalysts From Rice Husk For The Conversion Of Hexose Sugar Into Methyl Levulinate And 5-Hydroxymethylfurfural |
| title_full |
The Synthesis Of Functionalized-Silica/Carbon Catalysts From Rice Husk For The Conversion Of Hexose Sugar Into Methyl Levulinate And 5-Hydroxymethylfurfural |
| title_fullStr |
The Synthesis Of Functionalized-Silica/Carbon Catalysts From Rice Husk For The Conversion Of Hexose Sugar Into Methyl Levulinate And 5-Hydroxymethylfurfural |
| title_full_unstemmed |
The Synthesis Of Functionalized-Silica/Carbon Catalysts From Rice Husk For The Conversion Of Hexose Sugar Into Methyl Levulinate And 5-Hydroxymethylfurfural |
| title_sort |
synthesis of functionalized-silica/carbon catalysts from rice husk for the conversion of hexose sugar into methyl levulinate and 5-hydroxymethylfurfural |
| granting_institution |
Universiti Sains Malaysia |
| granting_department |
Pusat Pengajian Sains Kimia |
| publishDate |
2018 |
| url |
http://eprints.usm.my/43759/1/SYED%20MUHAMMAD%20AL-AMSYAR.pdf |
| _version_ |
1747821273251053568 |