The preparation of high-performance porous carbons (HPPCs) using biomass as adsorbent is a viable strategy for the treatment of ibuprofen (IB) in water. In the present study, pyrolyzed carbon was prepared from duckweed (DW) and rice straw (SW) at 400, 500, and 600 °C, and subsequently mixed pyrolysis with KOH to prepare the HPPCs. The HPPCs were used for the treatment of ibuprofen (IB) in water to evaluate their absorption performance. The physicochemical properties of biochar and HPPCs were investigated using scanning electron microscopy, X-ray electron microscopy, Raman microscopy, and the Brunauer-Emmett-Taylor method. In IB adsorption experiments, adsorption equilibrium was evaluated using Langmuir and Freundlich isotherm models. The maximum adsorption capacities of DW and SW were 0.952 and 0484 g/g, respectively, at an IB concentration of 0.5 g/L. The adsorption capacity of HPPCs for IB is influenced by a multifactorial combination of the specific surface area, nitrogen content, and nitrogen-containing functional groups on the surface. Generally, the HPPCs showed great potential for the removal of the IB pharmaceutical contaminants from aqueous solutions.

中文翻译：

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不同含氮生物质热解炭的性能评价：理化性质和布洛芬吸附


使用生物质作为吸附剂制备高性能多孔碳（HPPC）是处理水中布洛芬（IB）的可行策略。在本研究中，在400、500和600℃下由浮萍（DW）和稻草（SW）制备热解碳，然后与KOH混合热解以制备HPPC。 HPPC 用于处理水中的布洛芬 (IB)，以评估其吸收性能。使用扫描电子显微镜、X射线电子显微镜、拉曼显微镜和Brunauer-Emmett-Taylor方法研究了生物炭和HPPC的理化性质。在 IB 吸附实验中，使用 Langmuir 和 Freundlich 等温线模型评估吸附平衡。当IB浓度为0.5 g/L时，DW和SW的最大吸附容量分别为0.952和0484 g/g。 HPPC对IB的吸附能力受到比表面积、氮含量和表面含氮官能团等多因素组合的影响。一般来说，HPPC 在去除水溶液中的 IB 药物污染物方面表现出巨大的潜力。