金屬有機骨架（MOFs），因為結構多樣性、功能可調節性、較高的比表面積和永久的孔隙率，在過去的二十年中引起了相當大的關注。而MOFs目前已被廣泛應用在各種領域，例如氣體儲存、催化、化學分離和化學感測器。但是大多數MOFs在水相環境中有著較差的穩定性和較低導電度，這也限制了它們在許多應用中的發展。然而以鋯為基底MOF(Zr-MOF)通常在水相中穩定，因此近年來已被廣泛使用在許多應用上，但是導電Zr-MOF的例子仍然非常少見。
石墨烯量子點(GQDs)為奈米片狀石墨，具有高穩定性、好的生物相容性、優異的分散性和容易調控尺寸的優勢，透過調控尺寸造成量子侷限效應以調控其電子結構。本研究藉由含浸法將平均大小為3.1奈米GQDs摻入於以卟啉及鋯為基底的中孔金屬有機骨架中，以呈現施體-受體電子傳遞從石墨烯量子點傳遞到有機連接器卟啉。由實驗結果可知，製備出的複合材料導電性提升了超過一百倍且還具有一半的孔洞性。而有機連接器卟啉可作為電觸媒用於感測亞硝酸鹽，比較安裝GQD前後的金屬有機骨架之電化學感測表現，安裝GQD後其電化學感測效果更為優異。

Graphene quantum dots (GQD) with an average size of 3.1 nm were incorporated into a mesoporous porphyrinic zirconium-based metal–organic framework (MOF) by direct impregnation to render the donor–acceptor charge transfer from GQDs to porphyrinic linkers. The hybrid material still possesses around half porosity of the pristine MOF and shows a 100-fold higher electrical conductivity compared to that of the parent MOF. By utilizing the porphyrinic linkers as catalytically active units, the GQD-MOF material exhibits a better electrochemical sensing activity toward nitrite in aqueous solutions compared to both the pristine MOF and GQD. The linear range of the hybrid material for the determination of nitrite is 40-18000 μM. and the limit of detection is 6.4 μM.

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