caa a22 4500 606194576 CHVBK 20210128100914.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s10934-014-9882-8 doi (NATIONALLICENCE)springer-10.1007/s10934-014-9882-8 A comprehensive study on activated carbon prepared from spent shiitake substrate via pyrolysis with ZnCl2 [Elektronische Daten] [Yuhui Ma, Qunhui Wang, Xiaona Wang, Xiaohong Sun, Xiaoqiang Wang] Activated carbon was produced from spent shiitake substrate (SSS) via ZnCl2 activation. The product was studied by scanning electron microscopy (SEM), N2-adsorption, Fourier transform infrared spectroscopy and X-ray diffraction (XRD), and its adsorptive behavior was quantified using methylene blue. The pyrolysis of SSS with ZnCl2 was investigated by thermogravimetric analysis, XRD, SEM and energy dispersive X-ray spectrometry. Pyrolysis kinetic was analyzed via Coats-Redfern method. Experimental results demonstrated that the product had surface area of 1,743m2g−1 and total pore volume of 0.930cm3g−1. The adsorption equilibrium data followed Langmuir isotherm model with a monolayer adsorption capacity of 408.16mgg−1, and pseudo-second-order kinetic model better described the adsorption kinetic. The adsorption mechanism was well described by the intraparticle diffusion model. SSS can transform into a plastic phase during activation, and zinc oxide chloride hydrate (Zn2OCl2·2H2O) was formed above 260°C. The diffusion of the ZnCl2 gas generated from the decomposition of Zn2OCl2·2H2O around 500°C was responsible for the porosity development. ZnO was the main zinc-containing matter in the carbon at high pyrolysis temperatures. With the addition of ZnCl2, the activation energy of the pyrolysis of the lignocellulose structure in SSS was reduced to 12.27kJmol−1. Springer Science+Business Media New York, 2014 Spent shiitake substrate nationallicence ZnCl2 activation nationallicence Characterization nationallicence Adsorption nationallicence Pyrolysis process nationallicence Ma Yuhui Department of Civil and Environment Engineering, University of Science and Technology Beijing, 100083, Beijing, China aut Wang Qunhui Department of Civil and Environment Engineering, University of Science and Technology Beijing, 100083, Beijing, China aut Wang Xiaona Department of Civil and Environment Engineering, University of Science and Technology Beijing, 100083, Beijing, China aut Sun Xiaohong Beijing Agricultural Biotechnology Centre, Beijing Academy of Agriculture and Forestry Sciences, 100083, Beijing, China aut Wang Xiaoqiang National Engineering Laboratory for Biomass Power Generation Equipment, School of Renewable Energy, North China Electric Power University, 102206, Beijing, China aut Journal of Porous Materials Springer US; http://www.springer-ny.com 22/1(2015-02-01), 157-169 1380-2224 22:1<157 2015 22 10934 https://doi.org/10.1007/s10934-014-9882-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10934-014-9882-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ma Yuhui Department of Civil and Environment Engineering, University of Science and Technology Beijing, 100083, Beijing, China aut NATIONALLICENCE 700 1- Wang Qunhui Department of Civil and Environment Engineering, University of Science and Technology Beijing, 100083, Beijing, China aut NATIONALLICENCE 700 1- Wang Xiaona Department of Civil and Environment Engineering, University of Science and Technology Beijing, 100083, Beijing, China aut NATIONALLICENCE 700 1- Sun Xiaohong Beijing Agricultural Biotechnology Centre, Beijing Academy of Agriculture and Forestry Sciences, 100083, Beijing, China aut NATIONALLICENCE 700 1- Wang Xiaoqiang National Engineering Laboratory for Biomass Power Generation Equipment, School of Renewable Energy, North China Electric Power University, 102206, Beijing, China aut NATIONALLICENCE 773 0- Journal of Porous Materials Springer US; http://www.springer-ny.com 22/1(2015-02-01), 157-169 1380-2224 22:1<157 2015 22 10934