Hypochlorous acid has been used widely as a disinfectant in industrial and home applications, but numerous experiments suggest that excessive use of hypochlorous acid can lead to a variety of human diseases. However, an effective alternative method to detect ClO⁻ ions with high selectivity and sensitivity does not yet exist. Herein, nitrogen-fluorine-codoped carbon quantum dots (NFCDs) were synthesized by a one-pot hydrothermal method. They displayed an excitation peak at 465 nm and a strong emission peak at 506 nm and their fluorescence demonstrated excellent stability in NaCl aqueous solution or the solution with varied pH values. The NFCDs were successfully used as fluorescent probes for ClO⁻ detection. The fluorescence intensity of NFCDs could be quenched by ClO⁻ very quickly (<1 min), and a linear response of the fluorescence intensity on the ClO⁻ concentration was obtained. The linear detection range was from 0 to 20 μM, and the limit of detection was as low as 12.0 nM, indicating high sensitivity. Furthermore, the NFCDs displayed excellent selectivity and anti-interference. This novel synthesis and detection has potential to be applied to determinate the dissolved ClO⁻ in water samples with a satisfactory recovery rate.

次氯酸在工业和家庭应用中已被广泛用作消毒剂，但大量实验表明，过度使用次氯酸可导致多种人类疾病。然而，一种有效的替代方法，以检测CLO ^-以高选择性和灵敏度离子尚不存在。在此，通过一锅水热法合成了氮氟共掺杂的碳量子点（NFCD）。它们在465 nm处显示激发峰，在506 nm处显示强发射峰，并且其荧光在NaCl水溶液或pH值变化的溶液中显示出优异的稳定性。所述NFCDs被成功用作CLO荧光探针^-检测。NFCDs的荧光强度可以通过CLO淬火^-非常快速地（<1分钟），并在CLO的荧光强度的线性响应^-得到的浓度。线性检测范围为0至20μM，检测极限低至12.0 nM，表明灵敏度高。此外，NFCD具有出色的选择性和抗干扰性。这种新颖的合成和检测有潜力要被施加到确定的溶解的CLO ^-水样中具有令人满意的回收率。