FAST AND SIMPLE PYROLYSIS OF COTTON WOVEN FABRIC AND APPLICATION FOR REACTIVE DYE ADSORPTION Nr. 1610 - JENNY SAYAKA KOMATSU 2. WORLD ACTIVATED CARBON PRODUCTION
Authors: Jenny Sayaka Komatsu1,2, Dalmo Mandelli1, Wagner Alves Carvalho1
GAS
de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André – SP - Brazil
[email protected] 1 Centro
2 Rigaku
Variety of applications
Latin America, São Paulo – SP – Brazil
WATER
Year 2017 (Projection) 1,733 million ton
Year 2000 400,000 ton
1. BRAZILIAN SITUATION OF URBAN SOLID WASTE
Precursor scarcity CATALYSIS
In 2008: 259,547 ton.day-1 Source: Brazilian Institute of Geography and Statistics (IBGE)
Picture taken on 03 July 2017 from: http://brasilescola.uol.com.br/geografia/lixo-urbano.htm
Waste Type
.mass %
Organics
44.9
Paper&Cardboard
17.1
Wood
4.7
Rubber
0.7
Plastics
10.8
Metal
2.9
Glass
3.3
Textile
2.6
Other inerts
Source: http://www.prnewswire.com/news-releases/, on 26 October 2016
39,5% Recyclables
X.Sun et. al. J. Braz. Chem. Soc. 2016;27(1):202-208
3. TEXTILE RESIDUES AS ACTIVATED CARBON PRECURSORS
22% Effectively Recycled
Average Yield ~ 20% mass
6,748 ton.day-1 = 2,5 milllion ton.year-1
13.0
Textile Residue generated in Brazil 2.5million ton.year-1
Source: IPCC Report 2006, for Latin America
Estimated Carbon Production 500,000 ton.year-1
Heating: 5K.min-1 → Natural Cooling Temperature (K)
4. MATERIALS & METHODS Fe(NO3)3.9H2O @ 0.3M
DRYING 343 K, Overnight
IMPREGNATION 1 g : 10 mL
PYROLYSIS 1,073 K
ELECTRIC FURNACE
Fabric Commercial White Cotton
Reactive Black
Time(min)
N2
DYE ADSORPTION 4 h @ 100 rpm
UV-Vis 596 nm
Exhaust +FeC
Quartzo Reactor
(Activation Process based on: Long CHEN et al.. Royal Society of Chemistry Advances. 2016, 6, 2259)
5. RESULTS & DISCUSSION Celluose I area BET Pore Volume (m2.g-1) (cm3.g-1)
Adsorbent CottonC +FeC
Fe3C
White Cotton Fabric Carbon
20
0.022
Fabric impregnated with Fe
167
0.457
87% Dye Removal
Figure 2 – XRD diffractogram
6. CONCLUSION Cotton fabric demonstrated to have high potential as precursor for activated carbon and adsorber. This study also demonstrated that it is possible to produce highly effective carbon, with lower temperature and much less time as conventionally made: 1023K with no isotherm treatment, compared to commonly used 1073K for 2hours.
Figure 1 – N2 Isotherms Fe3C (Ref: ICDD-PDF-2: 01-074-3838-Cohenite)
ACKNOWLEDGMENT:
CNPq Process 142238/2016-3, Núcleo de Tecnologias Sustentáveis da UFABC, Grupo de Pesquisa em Catálise e Síntese Orgânica, Central Experimental Multiusuário da UFABC, Laboratório Didático de Materiais da UFABC
13 July 2017 IUPAC 2017 – São Paulo - Brazil