Porous boron nitride: A novel metal-free cataluminescence material for high performance H2S sensing
Porous boron nitride: A novel metal-free cataluminescence material for high performance H2S sensing
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多孔氮化硼：一种用于高性能 H2S 传感的新型无金属催化发光材料
DOI：
10.1016/j.snb.2021.129512
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发表时间：
2021-01-27
影响因子：
8.4
通讯作者：
Lv, Yi
中科院分区：
文献类型：
--
作者：
Bian, Yingman;Li, Li;Lv, Yi
作为一种剧毒气体，硫化氢（H2S）对环境和人类健康构成风险。研究高性能H2S传感器的敏感材料是一项重要的工作。与典型的金属材料相比，无金属材料具有成本低、环境友好、稳定性好等显著优势，近年来受到越来越多的关注。本研究以锌盐为辅助试剂，合成了一种二维无金属材料--多孔氮化硼（p-BN），并制备了一种新型的无金属催化发光（CTL）气敏元件。由于BN具有高的比表面积和B空位，所制备的p-BN气敏元件对H_2S具有快速、稳定、灵敏和选择性的响应，线性范围为2.79 ~ 178.6 μ g·mL ~（-1），检测下限为0.52 μ g·mL ~（-1）。同时，对该反应的机理也进行了详细的讨论。该研究为BN作为高性能有毒气体传感的无金属材料开辟了一个有吸引力的前景。
As a highly toxic gas, hydrogen sulfide (H2S) poses risks in terms of environmental and human health. It is mandatory to investigate sensing materials for high performance H2S sensing. Compared with typically metal materials, metal-free materials show significant advantages in its low-cost, environmentally friendliness as well as stability, which attract more and more attentions in recent years. In this study, with Zinc (Zn) salt as a coreagent, a two-dimensional metal-free material, porous boron nitride (p-BN) was synthesized and a novel metal-free cataluminescence (CTL) gas sensor was fabricated. By virtue of high specific area and B-vacancies on BN, the as-prepared p-BN gas sensor showed a rapid, stabile, sensitive and selective response toward H2S, with a wide linear range from 2.79 to 178.6 mu g mL(-1) and a low limit detection of 0.52 mu g mL(-1). Meanwhile, the mechanism was also discussed in detail. The study opens an attractive perspective of BN as metal-free materials for high performance toxic gases sensing.