The exploration of emergency materials with ultra-fast adsorption rate and great adsorption capability of released U(VI) ions is essentially urgent. The present work successfully fabricated bundle-like hydroxyapatite (B-HAP) microstructures which composed of numerous nanorods by employing a facile and green method. The B-HAP was applied to treat the U(VI) containing wastewater. The abatement of U(VI) by B-HAP was very rapid and the saturated adsorption capacity was superior; over 96.7 % of U(VI) was abated within 5 min, and the maximum adsorption capacity was as high as to 1305 mg/g, signifying the feasibility and effectiveness of this B-HAP in the treatment of uranium-contaminated wastewater due to nuclear accidents. It is worthy to note that other ions in solution exhibited relatively low interference on its performance, indicating that B-HAP has great application potential to capture U(VI) from radioactive-contaminated wastewater as well. The U(VI) removal mechanism by B-HAP was confirmed with results from XRD, FT-IR and XPS. Chernikovite [H2(UO2)2(PO4)2·8H2O] was newly formed after U(VI) abatement by B-HAP. Economic assessment suggested B-HAP and its application on U(VI) abatement were cost-effective. With characteristics of high adsorption rate, large capacity, and strong antijamming ability, B-HAP has great application potential as an emergency treatment material for nuclear accidents.

中文翻译：

---

发展高效的束状羟基磷灰石以减少U（VI）水溶液离子：机理和经济评估。

具有超快吸附速率和强大的已释放U（VI）离子吸附能力的应急材料的研究迫在眉睫。目前的工作成功地制造了束状羟基磷灰石（B-HAP）的微结构，通过采用一种简便而环保的方法，由许多纳米棒组成。B-HAP用于处理含U（VI）的废水。B-HAP消除U（VI）的速度非常快，并且饱和吸附能力优异。在5分钟内消除了超过96.7％的U（VI），最大吸附容量高达1305 mg / g，这表明该B-HAP在处理核污染铀污染废水中的可行性和有效性事故。值得注意的是，溶液中的其他离子对其性能的干扰相对较低，表明B-HAP在从放射性污染废水中捕获U（VI）方面也具有巨大的应用潜力。XRD，FT-IR和XPS的结果证实了B-HAP去除U（VI）的机理。B-HAP消减U（VI）后，新形成了Chernikovite [H2（UO2）2（PO4）2·8H2O]。经济评估表明，B-HAP及其在减少U（VI）方面的应用具有成本效益。B-HAP具有吸附率高，容量大，抗干扰能力强等特点，作为核事故应急处理材料具有广阔的应用前景。经济评估表明，B-HAP及其在减少U（VI）方面的应用具有成本效益。B-HAP具有吸附率高，容量大，抗干扰能力强等特点，作为核事故应急处理材料具有广阔的应用前景。经济评估表明，B-HAP及其在减少U（VI）方面的应用具有成本效益。B-HAP具有吸附率高，容量大，抗干扰能力强等特点，作为核事故应急处理材料具有广阔的应用前景。