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Sharma, Mukesh
- One-Pot Synthesis of Biodiesel from High Fatty Acid Jatropha curcas Oil Using Bio-based Basic Ionic Liquid as a Catalyst
Abstract Views :225 |
PDF Views:99
Authors
Eragam Ramamohan Reddy
1,
Mukesh Sharma
2,
Jai Prakash Chaudhary
2,
Hetal Bosamiya
1,
Ramavatar Meena
1
Affiliations
1 Scale-Up and Process Engineering Unit, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar 364 002, IN
2 Academy of Scientific and Innovative Research, Anusandhan Bhavan, 2 Rafi Marg, New Delhi 110 001, IN
1 Scale-Up and Process Engineering Unit, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar 364 002, IN
2 Academy of Scientific and Innovative Research, Anusandhan Bhavan, 2 Rafi Marg, New Delhi 110 001, IN
Source
Current Science, Vol 106, No 10 (2014), Pagination: 1394-1400Abstract
This article describes a facile one-pot synthesis of bio-diesel from non-treated Jatropha oil (J oil) with high acid value (ca. 17 mg KOH/g). Choline hydroxide exhibited superior catalytic activity than choline im-idazole in the transesterification that yields 95 ± 1% of biodiesel, when the reaction was carried out with 9 : 1 molar ratio of methanol to J oil and 4 wt% catalysts at 60°C for 4 h. Further study showed that the catalyst exhibited almost constant activity for four successive trials after being recycled. The main fuel properties of the final product meets the ASTM standards. Moreo-ver, the properties of biodiesel are identical to those obtained by conventional method (US 7,666,234 B2) and can be used as fuel in the existing diesel engines without any modification.Keywords
Biodiesel, Jatropha curcus, Ionic Liquid, Transesterification.Full Text
- Graphene Oxide Reduction Activity of Seaweed Polymer Derivative:Efficient Bio-Based Alternative
Abstract Views :299 |
PDF Views:85
Authors
Affiliations
1 Natural Products and Green Chemistry Division, CSIR-Central Salt and Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002, IN
1 Natural Products and Green Chemistry Division, CSIR-Central Salt and Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002, IN
Source
Current Science, Vol 113, No 07 (2017), Pagination: 1361-1366Abstract
The present study demonstrates utilization of functionalized seaweed polysaccharide, namely agarose–gallate (Ag–GAEst) for the preparation of reduced graphene oxide (rGO) under mild reaction conditions. Ag–GAEst obtained with the lowest degree of substitution (degree of substitution (DS) = 0.45; with 1 : 0.5 w/w agarose : gallic acid) shows excellent performance compared to its high DS (1.1; with 1 : 2.0 w/w agarose : gallic acid) ester derivatives. Further, the formation of rGO was confirmed using UV–Vis, TEM, FTIR, Raman spectroscopy, elemental and XRD analysis. This study describes a new application of seaweed-derived polysaccharides.Keywords
Agarose–Gallate, Biomaterials, Green Approach, Graphene Oxide, Reduction Activity.Full Text
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