In this work, a novel water-stable coordination polymer with {4⁴} network topology {[Zn(L)₂(NO₃)₂]}_n (1) (L = 4,4'-Bis(triazol-1-ylmethyl)biphenyl) has been synthesized through the hydrothermal and sonochemical approaches. 1 has been characterized by single crystal X-ray diffraction, powder X-ray diffraction (PXRD), Fourier Transform Infrared Spectroscopy, UV-vis absorption spectrum and scanning electron microscopy (SEM). PXRD patterns of the as-synthesized samples 1 have confirmed the purity of the bulky samples. In the sonochemical preparation approaches, different ultrasound irradiation power and ultrasound time were also used in order to investigate the impact factor for morphology and size of nano-structured 1. Photo-luminescence studies have revealed that 1 can efficiently distinguish Fe³⁺ from Fe²⁺ and other metal ions. On the other hand, 1 also can exhibit a highly sensitive, excellently selective and real-time detection of benzaldehyde and pH through photo-luminescence quenching process. As for 1, density functional theory (DFT) and time-dependent DFT (TDDFT) theory has been applied to calculate these spectroscopic data, the result agree with the experimental results for detection of benzaldehyde. Photo-luminescent recyclability results indicated 1 can be reused at least five times in the detection process. To the best of our knowledge, this is the first example of a multi-responsive regenerable luminescent sensor for highly selective, sensitive and real-time sensing of Fe³⁺ over Fe²⁺, benzaldehyde and pH values.

在这项工作中，具有{4 ⁴ }网络拓扑{[Zn（L）₂（NO ₃）₂ ]} _n（1）（L = 4,4'-Bis（triazol-1- ylmethyl）biphenyl）已通过水热和声化学方法合成。图1的特征在于单晶X射线衍射，粉末X射线衍射（PXRD），傅立叶变换红外光谱，UV-可见吸收光谱和扫描电子显微镜（SEM）。合成样品的PXRD图1已经确认了大块样品的纯度。在声化学制备方法中，为了研究纳米结构1的形貌和尺寸的影响因素，还使用了不同的超声照射功率和超声时间。光致发光研究表明1可以有效地将Fe ³⁺与Fe ²⁺和其他金属离子区分开。在另一方面，1也能够发挥苯甲醛和pH的通过光致发光淬灭过程的高灵敏度，优异选择性的和实时检测。至于1分别用密度泛函理论和时变密度泛函理论计算了这些光谱数据，其结果与苯甲醛检测的实验结果吻合。表示1的光致发光可回收性结果在检测过程中至少可以重复使用五次。据我们所知，这是多响应可再生发光传感器的第一个示例，该传感器可对Fe ²⁺，苯甲醛和pH值进行高选择性，灵敏和实时的Fe ³⁺感测。