Abstract

Reduced graphene oxide/carbon nitride (rGO/C₃N₄) nanocomposites were prepared through a low-temperature and low-pressure sintering method using a mixture of GO and C₃N₄ powders. The degradation performance of methylene blue (MB) of composites with different raw material ratios was studied under simulated solar irradiation conditions. Results indicated that GO was rapidly reduced during heat treatment and bonded well with C₃N₄. The C₃N₄ grains were also significantly refined. Compared with single-phase C₃N₄, the addition of GO greatly improved its photocatalytic efficiency and effectively suppressed the recombination of electron hole pairs. The samples exhibited good photocatalytic performance under simulated sunlight irradiation. Within 15 min, MB could be rapidly degraded by the C₃N₄/20% rGO composite .

中文翻译：

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低温低压热处理合成C3N4/rGO复合材料及其光催化性能

摘要

_{采用GO和C 3} N ₄粉末的混合物，通过低温低压烧结方法制备了还原氧化石墨烯/氮化碳（rGO/ C ₃ N ₄ ）纳米复合材料。研究了不同原料配比复合材料在模拟太阳辐照条件下对亚甲基蓝（MB）的降解性能。结果表明，GO在热处理过程中迅速还原，并与C ₃ N ₄结合良好。C ₃ N ₄晶粒也显着细化。与单相C ₃ N ₄相比，GO的添加大大提高了其光催化效率，并有效抑制了电子空穴对的复合。样品在模拟太阳光照射下表现出良好的光催化性能。15分钟内，MB可被C ₃ N ₄ /20% rGO复合材料快速降解。