| Title |
Electrically Conductive and Antimicrobial Agro-Food Waste Biochar Functionalized with Zinc Oxide Particles |
| ID_Doc |
24985 |
| Authors |
Alves, Z; Ferreira, NM; Figueiredo, G; Mendo, S; Nunes, C; Ferreira, P |
| Title |
Electrically Conductive and Antimicrobial Agro-Food Waste Biochar Functionalized with Zinc Oxide Particles |
| Year |
2022 |
| Published |
International Journal Of Molecular Sciences, 23, 14 |
| DOI |
10.3390/ijms23148022 |
| Abstract |
Carbonaceous materials derived from biomass have been used as sustainable platforms for the growth of ZnO particles aiming the production of functional composite fillers. Kidney-bean pods were pyrolyzed by applying an experimental design that demonstrates that the specific surface area (S-BET) of biochar is improved with increasing pyrolysis temperature combined with a short air-oxidation time. Meanwhile, the graphitization degree and the electrical conductivity (EC) of biochars were negatively affected by increasing the air-oxidation time. The biochar sample with the higher EC and the one with the higher S-BET were selected to be functionalized with ZnO particles by a solvothermal methodology, obtaining composites with an EC and S-BET properties superior to the ZnO-rGO composite, in addition to a similar antibacterial activity. The developed ZnO-biochar composite structures, which are more ecological and biocompatible than the ZnO composites derived from graphene sheets, can be applied as electrically conductive and active fillers. |
| Author Keywords |
kidney-bean pods; pyrolysis; solvothermal synthesis; carbon material; circular economy |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000833704600001 |
| WoS Category |
Biochemistry & Molecular Biology; Chemistry, Multidisciplinary |
| Research Area |
Biochemistry & Molecular Biology; Chemistry |
| PDF |
https://www.mdpi.com/1422-0067/23/14/8022/pdf?version=1658376275
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