利用工业糖蜜废料高效合成少层石墨烯（及其Au/Ag纳米颗粒纳米复合材料）：光催化和超级电容应用
The use of industrial molasses waste in the performant synthesis of fewlayer graphene (and its Au/Ag nanoparticles nanocomposites): Photocatalytic and supercapacitance applications
摘要：
鉴于清洁的环境，行业需要通过可持续的方法，包括回收或明智地使用所产生的废物，来解决不同生产和工艺层面的多重需求。另一方面，绿色能源的发展和成功需要通过高效，可持续的方法合成的关键材料。在此，我们提出了绿色，简单，易于扩展，快速，高效的合成少层石墨烯（FLG）及其复合材料与金和银纳米粒子使用废物。基于石墨剥离的FLG合成在水中在工业副产物糖蜜的存在下发生，其接下来在Ag和Au NP形成期间也显示出高性能的还原性质。沉积在FLG上的纳米颗粒的尺寸减小表明糖蜜和FLG的协同效应，表现出FLG/糖蜜作为金属稳定剂物种的添加作用。纳米粒子/FLG复合材料2是有效的光催化剂在降解有机污染物，双酚（BisA），在过一硫酸盐（PMS）活化剂的存在下。基于Au/FLG（PVDF）和Ag/FLG（PVDF）的电极也显示出相对高的重量电容，205 Fg-1和729 Fg-1。该方法在合成其他层状材料以及其他非贵金属负载体系中具有重要的应用价值。
英文摘要：
In view of clean environment, the industry needs to address multiple demands at different levels of production and processes via the sustainable approach including recycling or smart use of produced waste. On the other hand, a development and success of green energy requires the crucial materials synthesized via efficient, sustainable methodology. Herein, we present the green, simple, easily scalable, fast, and highly efficient synthesis of few-layer graphene (FLG) and its composites with Au and Ag nanoparticles using a waste. The FLG synthesis based on the exfoliation of graphite occurs in water in the presence of industrial co-product, molasses, which next shows also performant reductive properties during Ag and Au NPs formation. The decreased size of NPs deposited on FLG indicates the synergetic effect of molasses and FLG, exhibiting the add role of FLG/molasses as metal stabilizer species. The NPs/FLG composites 2 are efficient photocatalysts in degradation of organic contaminant, bisphenol (BisA), in the presence of peroxy-monosulfate (PMS) activator. The Au/FLG (PVDF) and Ag/FLG (PVDF) based electrodes reveal as well relatively high gravimetric capacitance, 205 Fg-1 and 729 Fg-1. The presented approach is much worthy to be further applied in the synthesis of other layered materials as well as other non-noble supported metallic systems.
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