Graphene and its derivatives are ideal candidates for a variety of applications due to their distinctive optical, thermal, mechanical, and electronic properties, but its high price limits its application. Because of scalable graphene production method still stands as a serious barrier for its broad use. Here we develop a simple method to produce high quality single layer graphene with approximately 3 $/m² in cost, while current price is about 56,000 $/m². Food waste (bread waste) is used as starting material. Therefore, our introduced method also can serve as a valuable alternative to recycle food waste. Precursor concentration, pH and reaction temperature can create significant effects on the quality of final products. Single layer graphene sheet is achieved when concentration, reaction temperature and pH is used in 2 g/L, 180 °C and 7, respectively. Reaction is performed in ambient condition which is an advantage for scale up this method.

石墨烯及其衍生物具有独特的光学，热，机械和电子特性，因此是各种应用的理想候选者，但其高昂的价格限制了其应用。由于可扩展的石墨烯生产方法仍然是其广泛使用的严重障碍。在这里，我们开发了一种简单的方法来生产成本约为3 $ / m ^2的高质量单层石墨烯，而目前的价格约为56,000 $ / m ²。食物垃圾（面包垃圾）用作原料。因此，我们介绍的方法还可以作为回收食物垃圾的有价值的替代方法。前体浓度，pH和反应温度会对最终产品的质量产生重大影响。当分别以2 g / L，180°C和7使用浓度，反应温度和pH值时，可以得到单层石墨烯片。反应在环境条件下进行，这对于放大该方法是有利的。