Activated Carbon and Biochar Derived from Sargassum sp. Applied in Polyurethane-Based Materials Development

被引:0
作者
Mallouhi, Julie [1 ,2 ]
Varga, Miklos [1 ,2 ]
Sikora, Emoke [1 ,2 ]
Graczer, Kitty [1 ]
Banhidi, Oliver [1 ]
Gaspard, Sarra [3 ]
Goudou, Francesca [3 ]
Viskolcz, Bela [1 ,2 ]
Szori-Doroghazi, Emma [1 ,2 ]
Fiser, Bela [1 ,2 ,4 ,5 ]
机构
[1] Univ Miskolc, Inst Chem, H-3515 Miskolc, Hungary
[2] Univ Miskolc, Higher Educ & Ind Cooperat Ctr, H-3515 Miskolc, Hungary
[3] Univ Antilles, Lab COVACHIM M2E, EA 3592, BP 250, F-97157 Pointe A Pitre, France
[4] Ferenc Rakoczi II Transcarpathian Hungarian Coll H, Dept Biol & Chem, UA-90200 Beregszasz, Ukraine
[5] Univ Lodz, Fac Chem, Dept Phys Chem, Lodz, Poland
关键词
polyurethane; polymer composite; acoustic properties; toxicity test; AQUEOUS-SOLUTIONS; REMOVAL; ADSORPTION; COPPER; IONS; MECHANISMS; RESIDUE; NICKEL; STRAW; FOAMS;
D O I
10.3390/polym16202914
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Activated carbon (AC) and biochar (BC) are porous materials with large surface areas and widely used in environmental and industrial applications. In this study, different types of AC and BC samples were produced from Sargassum sp. by a chemical activation and pyrolysis process and compared to commercial activated carbon samples. All samples were characterized using various techniques to understand their structure and functionalities. The metal content of the samples was characterized by using an inductively coupled optical emission spectrometer (ICP-OES). A toxicity test was applied to investigate the effect of AC/BC on organisms, where Sinapis alba seed and Escherichia coli bacteria-based toxicity tests were used. The results revealed that the samples did not negatively affect these two organisms. Thus, it is safe to use them in various applications. Therefore, the samples were tested as fillers in polyurethane composites and, thus, polyurethane-AC/BC samples were prepared. The amounts of AC/BC mixed into the polyurethane formulation were 1%, 2%, and 3%. Mechanical and acoustic properties of these composites were analyzed, showing that by adding the AC/BC to the system an increase in the compression strength for all the samples was achieved. A similar effect of the AC/BC was noticed in the acoustic measurements, where adding AC/BC enhanced the sound adsorption coefficient (alpha) for all composite materials.
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页数:19
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