Carbonaceous adsorbents were synthesized from palm kernel shell and palm mesocarp fiber for the adsorption of phenanthrene (PHE) and the highly carcinogenic-benzo(a)pyrene (BaP). The structure and properties of the activated biochar were characterized using standardized analytical tools. The microscopic examinations carried out with SEM and BET results revealed mesoporous structures and interstitial spaces in the activated samples (AB-PKS and AB-PMS). Powder X-ray diffraction (PXRD) results showed that prepared sorbents are amorphous and that activation affected the amorphous cellulose on the surface of the microfibrils which led to a decrease in the intensity of some peaks. Fourier-transform infrared spectroscopy (FTIR) affirms the availability of surface moieties that may promote polycyclic aromatic hydrocarbon (PAH) removal or decontamination of aqueous media. The sorption isotherm and effect of pH on the adsorption of PHE and BaP onto the activated palm kernel shell (AB-PKS) and activated palm mesocarp fiber (AB-PMF) were investigated. The isotherm studies and error analysis (SSE and R²) confirm that the Freundlich model best fits experimental results for AB-PMF; while, the Langmuir model best describes AB-PKS sorption of BaP and PHE, respectively. The optimal removal efficiency for PHE was between 84 and 100% while that of BaP was between 68 and 87% with maximum adsorption capacity (q_max) of 19.38–21.98 mg/g and 1.24–13.26 mg/g, respectively. The optimum pH condition for removing PHE is less than 7 and above 7 for BaP. Therefore, the conversion of waste materials to useful sorbents, as well as preliminary adsorption test results obtained suggests a cleaner and cost-effective pathway for waste management and water treatment.

以棕榈仁壳和棕榈中果皮纤维为原料合成碳质吸附剂，用于吸附菲（PHE）和高致癌物苯并（a）芘（BaP）。使用标准化分析工具对活化生物炭的结构和特性进行了表征。利用 SEM 和 BET 结果进行的显微镜检查揭示了活化样品（AB-PKS 和 AB-PMS）中的介孔结构和间隙空间。粉末X射线衍射（PXRD）结果表明，制备的吸附剂是无定形的，活化影响了微纤维表面的无定形纤维素，导致一些峰的强度降低。傅里叶变换红外光谱 (FTIR) 证实了可促进多环芳烃 (PAH) 去除或水介质净化的表面部分的可用性。研究了吸附等温线和 pH 对活化棕榈仁壳 (AB-PKS) 和活化棕榈中果皮纤维 (AB-PMF) 吸附 PHE 和 BaP 的影响。等温线研究和误差分析（SSE 和R ²）证实 Freundlich 模型最适合 AB-PMF 的实验结果；而 Langmuir 模型分别最好地描述了 BaP 和 PHE 的 AB-PKS 吸附。 PHE 的最佳去除效率在 84% 到 100% 之间，BaP 的最佳去除效率在 68% 到 87% 之间，最大吸附容量（q _max）分别为 19.38–21.98 mg/g 和 1.24–13.26 mg/g。去除 PHE 的最佳 pH 条件是小于 7，而 BaP 的最佳 pH 条件是大于 7。因此，将废料转化为有用的吸附剂以及获得的初步吸附测试结果表明了废物管理和水处理的更清洁且具有成本效益的途径。