IDEAS home Printed from https://ideas.repec.org/a/eee/appene/v168y2016icp364-374.html
   My bibliography  Save this article

Efficient algal lipid extraction via photocatalysis and its conversion to biofuel

Author

Listed:
  • Shwetharani, R.
  • Balakrishna, R. Geetha

Abstract

Microalgae play an important role in energy production to solve the major energy crisis. The present study demonstrates an efficient and environmental friendly route for bio-oil extraction from wet Nannochloropsis oculata algal biomass through photocatalysis. The method uses abundant solar energy and catalytic amount of titanium dioxide photocatalyst for the rupturing of wet algal cells and reduces most of the cost by avoiding dewatering and drying, for algal oil production. The various spectroscopy and microscopy techniques used show destruction of algal cell membrane by the photocatalyst, with a release of 52.2% lipid yield. The obtained lipid by photocatalysis on esterification yields biofuel which is in complete agreement with results obtained from conventional techniques. Algal oil is converted to biofuel through acid catalyzed transesterification. Bio-oil and biofuel samples were analyzed by ATR-IR, NMR and GCMS. The physicochemical characterization of photocatalyst was carried out by UV–Visible spectroscopy, XRD, EDS, BET and electron microscopy studies. The results suggest that the nanoparticles are efficient catalysts for rupturing the rigid micro algal cell membrane in an aqueous environment, using sunlight and hence prove to be a potential economic method for large scale bio-oil extraction.

Suggested Citation

  • Shwetharani, R. & Balakrishna, R. Geetha, 2016. "Efficient algal lipid extraction via photocatalysis and its conversion to biofuel," Applied Energy, Elsevier, vol. 168(C), pages 364-374.
    • Handle: RePEc:eee:appene:v:168:y:2016:i:c:p:364-374
    DOI: 10.1016/j.apenergy.2016.01.087
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0306261916300745
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.apenergy.2016.01.087?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Sun, Zhe & Zhou, Zhi, 2019. "Nature-inspired virus-assisted algal cell disruption for cost-effective biofuel production," Applied Energy, Elsevier, vol. 251(C), pages 1-1.
    2. Yatish, K.V. & Omkaresh, B.R. & Kattimani, Veeranna R. & Lalithamba, H.S. & Sakar, M. & Balakrishna, R. Geetha, 2023. "Solar energy-assisted reactor for the sustainable biodiesel production from Butea monosperma oil: Optimization, kinetic, thermodynamic and assessment studies," Energy, Elsevier, vol. 263(PB).
    3. Fazril Ideris & Mohd Faiz Muaz Ahmad Zamri & Abd Halim Shamsuddin & Saifuddin Nomanbhay & Fitranto Kusumo & Islam Md Rizwanul Fattah & Teuku Meurah Indra Mahlia, 2022. "Progress on Conventional and Advanced Techniques of In Situ Transesterification of Microalgae Lipids for Biodiesel Production," Energies, MDPI, vol. 15(19), pages 1-32, September.
    4. Vasistha, S. & Khanra, A. & Clifford, M. & Rai, M.P., 2021. "Current advances in microalgae harvesting and lipid extraction processes for improved biodiesel production: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 137(C).
    5. Sun, Yingqiang & Xu, Chunyan & Igou, Thomas & Liu, Peilu & Hu, Zixuan & Van Ginkel, Steven W. & Chen, Yongsheng, 2018. "Effect of water content on [Bmim][HSO4] assisted in-situ transesterification of wet Nannochloropsis oceanica," Applied Energy, Elsevier, vol. 226(C), pages 461-468.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:appene:v:168:y:2016:i:c:p:364-374. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/description#description .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.