Chemical Engineering Department, National Higher Institution Centre of Excellence - Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak, Malaysia.
Environ Sci Pollut Res Int. 2022 Feb;29(9):12434-12440. doi: 10.1007/s11356-021-15030-x. Epub 2021 Jun 29.
Bamboo is the fastest-growing plant and is abundant in Malaysia. It is employed as a starting material for activated carbon production and evaluated for its potential in CO capture. A single-stage phosphoric acid (HPO) activation is adopted by varying the concentrations of HPO between 50 and 70 wt.% at a constant temperature and holding time of 500°C and 120 min, respectively. The bamboo-based activated carbons are characterized in terms of product yield, surface area, and porosity, as well as surface chemistry properties. Referring to the experimental findings, the prepared activated carbons have BET surface area of >1000 m g, which implies the effectiveness of the single-stage HPO activation. Furthermore, the prepared activated carbon via 50 wt.% HPO activation shows the highest BET surface area and carbon dioxide (CO) adsorption capacity of 1.45 mmol g at 25°C/1 bar and 9.0 mmol g at 25°C/30 bar. With respect to both the characterization analysis and CO adsorption performance, it is concluded that bamboo waste conversion to activated carbon through HPO activation method is indeed promising.
竹子是生长最快的植物，在马来西亚很丰富。它被用作活性炭生产的起始材料，并评估其在 CO 捕获方面的潜力。采用单一阶段磷酸（HPO）活化法，通过在 500°C 和 120 min 的恒温恒时条件下，将 HPO 的浓度在 50-70wt.%之间变化。根据实验结果，所制备的基于竹子的活性炭具有>1000 m 2 g 的 BET 表面积，这表明单阶段 HPO 活化的有效性。此外，通过 50wt.%HPO 活化制备的活性炭在 25°C/1 bar 下具有最高的 BET 表面积和二氧化碳（CO）吸附量，为 1.45 mmol g，在 25°C/30 bar 下为 9.0 mmol g。从表征分析和 CO 吸附性能来看，通过 HPO 活化法将竹废料转化为活性炭确实很有前景。
