In order to explore the influence of different activators on the structure and properties of the prepared activated carbon, bamboo fiber-based activated carbons (BFACs) were prepared by four activators of phosphoric acid, pyrophosphoric acid, zinc chloride, and diammonium biphosphate (BFAC-H₃PO₄, BFAC-H₄P₂O₇, BFAC-ZnCl₂, and BFAC-(NH₄)₂HPO₄) and BFACs adsorption performance and electrochemical properties were investigated. The main conclusions were: the specific surface area of the four BFACs varies greatly, among which BFAC-ZnCl₂ was the highest, at 1908.5074 m²/g, and BFAC-(NH₄)₂HPO₄ was the lowest, at 641.5941 m²/g. In terms of the pore structure, BFAC-H₃PO₄ and BFAC-H₄P₂O₇ are mainly mesopores and BFAC-ZnCl₂ and BFAC-(NH₄)₂HPO₄ are mainly micropores. The BFAC-ZnCl₂ sample had the largest specific capacitance, with a specific capacitance of 121.2730 F/g at a current density of 0.2 A/g, with a small internal resistance and good electrochemical reversibility and capacitance performance. The adsorption properties were better for BFAC-ZnCl₂ and BFAC-H₃PO₄ and the adsorption amounts were 648.75 and 548.75 mg/g, respectively.

Bamboo scrimber (BS) has been emerging as a promising construction material prepared from natural bamboo due to its high mechanical strength. However, the variability of the properties of bamboo scrimber is large, which limits the reliability assessment of bamboo scrimber in engineering applications. In this study, the variability of mechanical properties and dimensional stability of bamboo scrimber prepared by units pretreated at different temperatures (denoted as BS-150 and BS-200 for 150 °C and 200 °C, respectively) were compared and probabilistically analyzed using normal, lognormal, and Weibull distribution models. The results showed that BS-200 had a significantly lower thickness swelling rate (TSR), modulus of rupture (MOR) and shear strength (SS), with the modulus of elasticity (MOE) remaining essentially unchanged compared to BS-150. Probabilistic analysis revealed that the MOR, MOE, and TSR of BS-150 followed a lognormally distribution, and the shear strength was normally distributed. In contrast, the MOR, MOE, SS, and TSR of BS-200 all exhibited lognormal distributions. Meanwhile, the variability in TSR and SS for BS-200 was significantly reduced. The results provide a data base for the engineering application of bamboo scrimber and a new research idea for the evaluation of properties of forest biomass-based materials based on probabilistic analysis.