Abstract
In this work, carbonized quinoa starch (CQS) was incorporated in the growth of the fungal hyphae (FH) of Aspergillus niger (AN) and Myrothecium verrucaria (MV), to form FH/CQS composites through a biological self-assembly method. The two hyphae/starch porous carbon materials (PCCQS-AN and PCCQS-MV) were successfully prepared using the FH/CQS as templates. The characterization results showed that PCCQS-AN and PCCQS-MV had higher specific surface areas and pore volumes than the quinoa starch-based porous carbon (PCQS). Adsorption experiments involving a synthetic dye, Rhodamine B (RhB), and an antibiotic, tetracycline hydrochloride (TCH), as model pollutants revealed that the adsorption capacities of PCCQS-AN and PCCQS-MV were higher than those of PCQS. In addition, the removal rates of RhB and TCH by PCCQS-AN and PCCQS-MV remained above 50% after 5 cycles, which were higher than that of PCQS. This study proves that the biological self-assembly approach is an advanced method, and provides a new feasible direction for the research and development of other microorganism composites.
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