A framework of graphene oxide (GOF) was obtained by self-assembly of benzoic acid functionalized graphene oxide (BFG) with Zn (II) ions via coordination chemistry. The crystalline morphology of the graphene oxide framework (GOF) was confirmed by X-ray diffraction analysis and transmission electron microscopy. The functionalization of graphene oxide and framework formation was confirmed using Raman and FT-IR spectroscopy while morphology of BFG and GOF was studied using scanning electron microscopy with elemental analysis. This newly synthesized GOF material is used for electrochemical oxidation of nitrophenol isomers such as 2-NP and 4-NP using cyclic voltammetry and differential pulse voltammetry on glassy carbon electrode (GOF/GC electrode). The GOF/GC electrode showed improved electrochemical behavior for nitrophenols oxidation as compared to graphene oxide modified glassy carbon electrode (GO/GC electrode) and bare GC electrode. The GOF based sensor was found to be highly sensitive with detection limit of 60 nM, for 2-NP and 96 nM for 4-NP, and their corresponding sensitivities were 8.35 µAµM⁻¹cm⁻² and 2.22 µAµM⁻¹cm⁻² respectively. The enhanced electrochemical detection of nitrophenols might have been resulted on GOF/GC electrode due to accumulation of these nitrophenols and for this the binding constant calculated using Langmuir isotherm equation are 29 × 10³ M⁻¹ (for 2-NP) and 46 × 10³ M⁻¹ (for 4-NP).

苯甲酸官能化的氧化石墨烯（BFG）与Zn（II）离子通过自组装获得了氧化石墨烯（GOF）的骨架配位化学。通过X射线衍射分析和透射电子显微镜确认了氧化石墨烯骨架（GOF）的晶体形态。使用拉曼光谱和FT-IR光谱证实了氧化石墨烯的功能化和骨架形成，同时使用扫描电子显微镜和元素分析研究了BFG和GOF的形态。这种新合成的GOF材料用于在玻碳电极（GOF / GC电极）上使用循环伏安法和差分脉冲伏安法对2-NP和4-NP等硝基苯酚异构体进行电化学氧化。与氧化石墨烯修饰的玻碳电极（GO / GC电极）和裸GC电极相比，GOF / GC电极在硝基酚氧化方面表现出改善的电化学性能。^-1 cm ^-2和2.22 µAµM ^-1 cm ^-2。由于这些硝基酚的积累，可能在GOF / GC电极上导致了增强的硝基酚电化学检测，为此，使用Langmuir等温方程计算的结合常数为29×10 ³ M ^-1（对于2-NP）和46×10 ³ M ^-1（对于4-NP）。