Orthogonal design-guided preparation of multi-level porous-activated carbon by pyrolysis of waste polyester textiles
- 33 Downloads
Multi-level porous amorphous-activated carbon with excellent adsorption performance was prepared by a ZnCl2-assisted pyrolysis of waste polyester textiles. Experimental parameters were optimized by using orthogonal design. Result of orthogonal design revealed that pyrolysis temperature and pyrolysis time were the dominant individual factors. Samples prepared at the optimal condition were systematically characterized by Brunauer-Emmett-Teller (BET) porosity analyzer, FT-IR spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscope (SEM), and transmission electron microscope (TEM). Iodine (I2), methylene blue (MB) and phenol (PhOH) were selected as target dyes to measure the adsorption performance. Experimental results showed that porous-activated carbon with multi-level pores could be obtained by optimizing experimental parameters. The specific surface area and total pore volume were calculated to be 846.37 m2 g−1 and 0.726 cm3 g−1, respectively. Benefit from its multi-level rich porosity, the optimized sample possessed attractive adsorption performance toward different types of dyes. The corresponding adsorption capacity toward I2, MB, and PhOH were calculated to be 980.48, 384.00, and 300.62 mg g−1, respectively.
KeywordsOrthogonal design Waste polyester textiles Activated carbon Adsorption
The study was financially supported by the Scientific Research Fund of Taiyuan University of Technology (Project No.20504020203) and Research Initiation Funds for the returned Chinese scholars (Project No.2017048).
- Ma C, Huang ZW, Zhu YM et al (2017) Production and in vitro evaluation of a lamotrigine extended release tablet based on a controlled-porosity osmotic pump system. Pharmazie 72:511–517Google Scholar
- Sun LN, Li DX, Gao GL et al (2010) Textile waste recycled to prepare activated carbon by phosphoric acid activation. Environ Sci Technol 33:161–164Google Scholar
- Zhang L, Liu LS, Qiu GX et al (2013) Research progress of recycled use of waste textiles. J Text Res 3:153–160Google Scholar