The gradual emissions of tetrabromobisphenol A (TBBPA) from the primitive recycling of E-waste create human health threats, which urgently require to develop an efficient, rapid yet simple detection method. The present study conducts a highly sensitive molecularly imprinted photoelectrochemical sensor (MIPES) containing molecularly imprinted (MI)-TiO₂, Au, and reduced graphene oxide for the trace detection of TBBPA in indoor dust and surface water from an E-waste recycling area. The photocurrent response is used to evaluate the sensing performance of the MIPES toward TBBPA detection. The working potential for amperometry is 0.48 V. The wavelength range for photoelectrochemical detection is 320–780 nm. The sensor shows a detection range of 1.68 to 100 nM with a low limit of detection of 0.51 nM (LOD = 3 s_b/S) and a limit of quantification of 1.68 nM (LOQ = 3.3 LOD). In addition, the MIPES sensor exhibits rapid, excellent reproducibility, selectivity, and long-term stability toward TBBPA detection. The relative standard deviation of three measurements for real samples is less than 7.0%, and the recovery range is 90.0–115%. The surface of molecular imprinting contributes to the high charge separation and sensing photocurrent response of TBBPA, which is confirmed by single-particle photoluminescence spectroscopy. The present study provides a new facile sensor with highly sensitive yet rapid response to detect environmental pollutants in E-waste by using the MIPES.

Graphical abstract

中文翻译：

---

用于检测室内灰尘和水中四溴双酚A的分子印迹光电化学传感器

电子垃圾原始回收过程中四溴双酚 A (TBBPA) 的逐渐排放对人类健康构成威胁，迫切需要开发一种高效、快速且简单的检测方法。本研究进行了一种包含分子印迹 (MI)-TiO ₂、Au 和还原氧化石墨烯的高灵敏度分子印迹光电化学传感器 (MIPES) ，用于痕量检测来自电子废物回收区的室内灰尘和地表水中的 TBBPA。光电流响应用于评估 MIPES 对 TBBPA 检测的传感性能。电流法的工作电位为 0.48 V。光电化学检测的波长范围为 320–780 nm。该传感器的检测范围为 1.68 至 100 nM，检测下限为 0.51 nM（LOD = 3s _b / S）和 1.68 nM 的定量限（LOQ = 3.3 LOD）。此外，MIPES 传感器对 TBBPA 检测表现出快速、出色的重现性、选择性和长期稳定性。真实样品三次测量的相对标准偏差小于7.0%，回收范围为90.0-115%。分子印迹的表面有助于 TBBPA 的高电荷分离和传感光电流响应，这由单粒子光致发光光谱证实。本研究提供了一种新的、具有高灵敏度且快速响应的简易传感器，可使用 MIPES 检测电子废物中的环境污染物。

图形概要