Blue laser-induced photochemical synthesis of CuAg nanoalloys on h-BN supports with enhanced SERS activity for trace-detection of residual pesticides on tomatoes
Blue laser-induced photochemical synthesis of CuAg nanoalloys on h-BN supports with enhanced SERS activity for trace-detection of residual pesticides on tomatoes
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蓝色激光诱导光化学合成 h-BN 载体上的 CuAg 纳米合金，具有增强的 SERS 活性，用于番茄上残留农药的痕量检测
DOI：
10.1016/j.jallcom.2020.153996
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发表时间：
2020-06
影响因子：
6.2
通讯作者：
Feng Chen
中科院分区：
文献类型：
--
作者：
Hua Zhang;Qingqiang Cui;Linlin Xu;Anxin Jiao;Yue Tian;Xiangdong Liu;Shuang Li;Hengshuai Li;Ming Chen;Feng Chen
石墨烯纳米片负载的铜基纳米合金具有很好的提高表面增强拉曼散射光谱（Sers）的前景，这是由于与贵金属相比低成本的铜物种和源自二维（2D）载体的独特的额外的拉曼增强。在此，我们报告了一种装载高密度和单分散CuAg纳米合金的巧妙策略。(NAs)通过蓝光激光（405 nm）诱导的光化学反应，对六方氮化硼（h-BN）进行了研究。在没有任何复杂辅助试剂的情况下，Cu和Ag离子的共还原是由半导体h-BN上的光激发电子驱动的，导致“干净”的CuAg纳米粒子的聚结和过度生长。如预期的，所提出的h-BN/CuAg NAs提供了具有结晶紫（CV）在飞摩尔水平（~1016 M）、福美双和三环唑在皮摩尔水平的检测限（LOD）的拉曼Sers活性。(1012 M）和纳摩尔水平（109 M）。最重要的是，所制备的h-BN/CuAg NAs还通过简单的滴加和干燥过程与聚对苯二甲酸乙二醇酯（PET）直接结合以形成均匀的柔性基底。利用低成本的铜基柔性基底可以实现番茄表面三环唑残留的超灵敏Sers检测，从而在各种实际应用中广泛地实现农药残留的精确评估。
The copper (Cu)-based nanoalloys loaded on graphene-like nanoplates have a great promise for boosting.surface-enhanced Raman scattering spectroscopy (SERS), due to low-cost Cu species in comparison with.noble metals and unique additional Raman enhancement originated from two-dimensional (2D) supports..Herein, we report an ingenious strategy to load highly dense and monodisperse CuAg nanoalloys.(NAs) on hexagonal boron nitride (h-BN) by blue laser (405 nm) -induced photochemical reaction..Without the aid of any complex auxiliary reagents, the co-reduction of Cu and Ag ions is driven by.photon-excited electron on semiconductor h-BN, resulting in the coalescence and overgrowth of “clean”.CuAg NAs. As expected, the proposed h-BN/CuAg NAs provide ultrahigh SERS activity with the limit of.detections (LODs) of crystal violet (CV) at femtomole level (~1016 M), thiram and tricyclazole at picomolar.(1012 M) and nanomolar levels (109 M), respectively. Most importantly, the as-prepared h-BN/.CuAg NAs were also directly combined with polyethylene terephthalate (PET) by simple dripping and.drying processes to form uniform flexible substrates. The low-cost Cu-based flexible substrates can be.used to realize the ultrasensitive SERS detection of residual tricyclazole on tomato surfaces, thus facilitating.the widespread precise assessment of pesticide residues in various practical applications.
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影响因子：
3.7
作者：
Chang, Zhiyuan;Huo, Shengjuan;Wang, Hailiang
通讯作者：
Wang, Hailiang
垂直排列的 TiO2 纳米片上具有亚 5 nm 间隙的三维堆叠金纳米粒子，用于低至 10 fM 尺度的表面增强拉曼散射检测
影响因子：
9.5
作者：
Wang Xuejiao;Zhu Xupeng;Shi Huimin;Chen Yiqin;Chen Zhiquan;Zeng Yixuan;Tang Zhixiang;Duan Huigao
通讯作者：
Duan Huigao
影响因子：
3.7
作者：
Rao, V. Kesava;Ghildiyal, Pankaj;Radhakrishnan, T. P.
通讯作者：
Radhakrishnan, T. P.
影响因子：
4.1
作者：
Huasheng Zhang;Linlin Xu;Yue Tian;Anxin Jiao;Shuang Li;Xiangdong Liu;Ming Chen;Feng Chen
通讯作者：
Huasheng Zhang;Linlin Xu;Yue Tian;Anxin Jiao;Shuang Li;Xiangdong Liu;Ming Chen;Feng Chen
影响因子：
8.4
作者：
Jiawen Yu;Yanan Ma;Congxing Yang;Hang Zhang;Lijun Liu;J. Su;Yihua Gao
通讯作者：
Jiawen Yu;Yanan Ma;Congxing Yang;Hang Zhang;Lijun Liu;J. Su;Yihua Gao