Activated carbon materials with high specific surface area have been produced from red alga Pterocladia capillacea using zinc chloride as an activating agent at impregnation ratio 0.5 and carbonization temperature that ranged from 500 to 900 °C. The effects of activation temperatures, activation holding time, and soaking in different concentrations of HCl on the specific surface area, pore morphology, and activated carbon yield were tested. A high specific surface area for activated carbon was achieved under the optimized conditions of activation temperature 600 °C, holding time 30 min, and 1 M HCl soaked. The obtained Brunauer–Emmett–Teller surface area, total pore volume, and mean pore diameter were 1202.70 m²/g, 0.5797 cm³/g, and 1.93 nm, respectively. The prepared activated carbon surface area analysis showed mainly type IV shape. Examination of the morphology of produced activated by scanning electron microscopy and transmission electron microscope revealed a honeycomb morphology and proved the presence of micropores. The adsorption properties toward iodine removal were 86.54% with 0.25 g, and the maximum capacity of methylene blue was 185.23 mg/g indicating a higher surface area and the presence of largely micro- and mesoporous structures.

具有高比表面积的活性炭材料是用氯化锌作为活化剂，以0.5的浸渍比和500至900℃的碳化温度由红藻翼缘蕨（Pterocladia capillacea）生产的。测试了活化温度，活化保持时间以及在不同浓度的HCl中浸泡对比表面积，孔形态和活性炭收率的影响。在活化温度600°C，保持时间30分钟和1 M HCl浸泡的最佳条件下，获得了高活性炭比表面积。所获得的Brunauer–Emmett–Teller表面积，总孔体积和平均孔径为1202.70 m ² /g，0.5797 cm ³/ g和1.93 nm。制备的活性炭表面积分析显示主要为IV型形状。通过扫描电子显微镜和透射电子显微镜对所产生的活化物的形态进行检查，结果显示出蜂窝状形态并证明了微孔的存在。0.25 g时对碘去除的吸附性能为86.54％，亚甲基蓝的最大容量为185.23 mg / g，表明表面积更大，并且存在大量的微孔和中孔结构。