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The first author paper is accepted for publication in Chemical Engineering Journal (IF 5.3)


2017-01-14
 

Carbon coils have many significant technological applications; however, most of them were fabricated using either expensive apparatus or complicated procedures. Herein, a versatile and simple method was used for fabricating valuable single-helix carbon microcoils (SHCMs) by Fe(Ш)-osmotically induced shape transformation of zucchini (Cucurbita pepo L.). This versatile strategy allowed to readily reach high surface area (365 m2 g−1), large pore volume (0.24 cm3 g−1) and a narrow average mesoporous size of 5.5 nm via a combined impregnation and hydrothermal carbonization process, and to achieve uniform SHCMs in a reasonable system. In addition, the SHCMs showed excellent performance in antibacterial property and the clearance of chloramphenicol, which should be a promising candidate for efficient adsorbent in water purification. The equilibrium data were well fitted to the Langmuir isotherm model with a maximal adsorption capacity of 124.32 mg g-1 at ambient temperature. The antibacterial mechanisms was also explored. The findings revealed that the Fe(Ш)-osmotically induced transformation is a potential route for large-scale preparation of SHCMs from appropriate biomass precursors.



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