Due to the serious threat posed by tebuconazole to the aquatic ecosystem, it is imperative to develop a highly efficient adsorbent material for the sustainable remediation of tebuconazole-contaminated water. Herein, a phosphorus (P)-doped biochar from corn straw and H3PO4 was fabricated by one-step pyrolysis for tebuconazole adsorption. Results showed that the P-doped biochar produced at 500℃ (PBC500) possesses a large specific surface area (SSA=869.6 m2/g), abundant surface functional groups, and the highest tebuconazole adsorption capacity (429.6 mg/g). The adsorption of tebuconazole on PBC500 followed pseudo-second-order kinetics and Langmuir adsorption isotherm models. Thermodynamic calculations indicated that the adsorption of tebuconazole by PBC500 was a spontaneous, endothermic process with a random increase. Adsorption mechanism mainly involves pore filling, π-π interactions, hydrogen bonding, and hydrophobic interaction. Moreover, PBC500 demonstrated robust anti-interference capabilities in adsorbing tebuconazole from diverse water sources and exhibited excellent reusability, underscoring its potential for a broad array of practical applications.

中文翻译：

---

掺磷玉米秸秆生物炭高效去除水溶液中戊唑醇：性能、机理及应用


由于戊唑醇对水生生态系统造成严重威胁，开发高效吸附材料对戊唑醇污染水体进行可持续修复势在必行。在此，利用玉米秸秆和磷酸通过一步热解制备了一种磷（P）掺杂生物炭，用于戊唑醇吸附。结果表明，500℃制备的掺磷生物炭（PBC500）具有较大的比表面积（SSA=869.6 m2/g）、丰富的表面官能团和最高的戊唑醇吸附容量（429.6 mg/g）。戊唑醇在 PBC500 上的吸附遵循准二级动力学和 Langmuir 吸附等温模型。热力学计算表明，PBC500对戊唑醇的吸附是一个自发的、随机增加的吸热过程。吸附机理主要涉及孔隙填充、π-π相互作用、氢键和疏水相互作用。此外，PBC500在从不同水源中吸附戊唑醇时表现出强大的抗干扰能力，并表现出优异的可重复使用性，凸显了其广泛的实际应用潜力。