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Related Experiment Video

Updated: Mar 14, 2026

Experimental Protocol for Biodiesel Production with Isolation of Alkenones as Coproducts from Commercial Isochrysis Algal Biomass

Experimental Protocol for Biodiesel Production with Isolation of Alkenones as Coproducts from Commercial Isochrysis Algal Biomass

Published on: June 24, 2016

Biodiesel production from wet microalgae by using graphene oxide as solid acid catalyst.

Jun Cheng¹, Yi Qiu¹, Rui Huang¹

¹State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China.

Bioresource Technology

|September 23, 2016

Summary

This summary is machine-generated.

Biodiesel production from wet microalgae lipids achieved 95.1% conversion efficiency using graphene oxide (GO) as a solid acid catalyst. This study optimized conditions for efficient fatty acid methyl ester (FAME) production.

Keywords:

Biodiesel Graphene oxide Solid acid catalyst Wet microalgae

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Cultivation of Green Microalgae in Bubble Column Photobioreactors and an Assay for Neutral Lipids

Cultivation of Green Microalgae in Bubble Column Photobioreactors and an Assay for Neutral Lipids

Published on: January 7, 2019

Area of Science:

Green Chemistry
Biotechnology
Catalysis

Background:

Microalgae lipids are a sustainable source for biodiesel production.
Developing efficient catalysts for transesterification of wet microalgae is crucial.
Graphene oxide (GO) offers potential as a solid acid catalyst due to its functional groups.

Purpose of the Study:

To investigate the use of graphene oxide (GO) as a solid acid catalyst for biodiesel production from wet microalgae lipids.
To optimize reaction parameters including catalyst dosage, temperature, time, and methanol/chloroform ratios for maximum lipid conversion efficiency.
To characterize the GO catalyst and its interaction with microalgae.

Main Methods:

Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and elemental analysis were used to characterize GO.
Scanning electron microscopy (SEM) visualized the adsorption of microalgae onto GO.
Microwave-assisted transesterification was employed to convert microalgal lipids into fatty acid methyl esters (FAMEs).

Main Results:

Graphene oxide (GO) was confirmed to possess 0.997 mmol SO3H groups/g and abundant OH groups.
SEM revealed hydrophilic GO surfaces effectively adsorbed wet microalgae cells.
Optimal conditions yielded a 95.1% lipid conversion efficiency into FAMEs using 5wt.% GO catalyst at 90°C for 40 minutes.

Conclusions:

Graphene oxide (GO) is an effective solid acid catalyst for the transesterification of wet microalgae lipids.
Optimized microwave-assisted transesterification using GO significantly enhances biodiesel yield.
This method presents a promising route for sustainable biodiesel production from microalgae.