Title:
Enhancement of the Biomass Modification Process Using Photocatalytic Materials
Author(s):
Bidikoudi, M., Chandrinou, C., Boukos, N., Falaras, P., Fardis, M., Apostolopoulos, G., Batzias, F.A., Sidiras, D.K.
Document(s):
Paper
Poster
Abstract:
Waste lignocellulosic biomass is an abandoned agro-industrial by-product including wheat straw. Lignocellulosics can be used as natural adsorbents for dyes, heavy metal salts and hydrocarbons in wastewater, seawater, rivers and lakes. The modification of lignocellulosic waste biomass can provide relatively low-cost adsorbents with increased sorption capacity and biodegradability, appropriate for the removal of dyes, heavy metal salts and oil spills from aquatic media. Titanium dioxide is a low-cost, environmentally friendly, abundant material that is well known for its photocatalytic properties. In this work lignocellulosic adsorbents (wheat) have undergone surface modification by nanostructured titania and the photocatalytic materials produced have been characterized in detail, as per their physicochemical properties with SEM, Raman spectroscopy, FT-IR Spectroscopy, adsorption isotherms and BET specific surface area. The photocatalytic activity of these organic-inorganic hybrids has been studied as per their ability to degrade commonly examined pollutants, such as azo dyes. The proposed innovative modification yields environmentally friendly organic-inorganic hybrid materials of low-cost but high added value, because: (i) the adsorbed pollutants are degraded by light, (ii) landfilling or incineration of the used biomass is avoided, thus preventing adverse effects on groundwater or air quality, respectively, and (iii) the produced material is recyclable and reusable.
Keywords:
biomass, catalysis, cellulose, lignin, wheat straw
Topic:
Biomass Resources
Subtopic:
Municipal and industrial wastes
Event:
23rd European Biomass Conference and Exhibition
Session:
1CV.3.85
Pages:
392 - 402
ISBN:
978-88-89407-516
Paper DOI:
10.5071/23rdEUBCE2015-1CV.3.85
Price:
FREE
