A boron-doped porous activated carbon was prepared using Zoysia sinica as the carbon source, boric acid as the doping agent, and sodium hydroxide as the activator. The morphology and structure analysis manifested that the optimized boron-doped porous activated carbon (denoted as ACB₂) possessed a layered pore structure and a high specific surface area (951.0 m²/g). Compared with the pristine activated carbon (AC), the introduction of boron gave birth to adjust the electron density on the carbon surface, and resulting the electronic interactions strengthened the binding between the adsorbent and Rhodamine B (RhB), meanwhile, Lewis acid sites also were introduced and promoted a high affinity of RhB to the adsorbent surface. In addition, the kinetic and equilibrium data for the RhB adsorption onto ACB₂ fitted well for the pseudo-second-order model and the Langmuir isotherm model, representing chemical and monolayer adsorption, respectively. Encouragingly, the boron-doped activated carbon exhibited excellent pH adaptability, with a maximum theoretical adsorption capacity of 1337.2 mg/g at unadjusted pH (298 K). In general, the boron-doped porous activated carbon is efficient for RhB removal and this work is also to give a state of developing heteroatom boron doping of activated carbon from cheap biomass with high-performance for dye removal.

以结缕草为碳源，硼酸为掺杂剂，氢氧化钠为活化剂，制备了硼掺杂多孔活性炭。形貌和结构分析表明，优化后的硼掺杂多孔活性炭（记为ACB ₂）具有层状孔结构和较高的比表面积（951.0 m ²/G）。与原始活性炭（AC）相比，硼的引入产生了对碳表面电子密度的调节，由此产生的电子相互作用加强了吸附剂与罗丹明B（RhB）之间的结合，同时路易斯酸位点也被引入并促进了RhB对吸附剂表面的高亲和力。_{此外，ACB 2}上 RhB 吸附的动力学和平衡数据非常适合伪二级模型和 Langmuir 等温线模型，分别代表化学和单层吸附。令人鼓舞的是，掺硼活性炭表现出优异的 pH 适应性，在未调节的 pH（298 K）下最大理论吸附容量为 1337.2 mg/g。一般来说，硼掺杂多孔活性炭对RhB的去除是有效的，这项工作也是为了开发一种从廉价生物质中掺杂杂原子硼的活性炭，并具有高性能的染料去除效果。