石墨烯
光催化
石墨氮化碳
氧化物
亚甲蓝
光化学
材料科学
激进的
可见光谱
氮化碳
化学工程
异质结
堆积
混合材料
碳纤维
化学
纳米技术
复合数
有机化学
光电子学
催化作用
复合材料
工程类
冶金
作者
Homg-Ming Su,Dhanapal Vasu,Shang-Ju Chan,Yung-Chieh Liu,Jiaxin Jiang,Yu-Feng You,Te−Wei Chiu,Sheng‐Chi Chen
标识
DOI:10.1016/j.envpol.2024.123556
摘要
The direct thermal polymerization techniques were applied to prepare the graphene oxide (GO)-graphitic carbon nitride (gCN) hybrid structure. The prepared hybrid heterojunction GO-gCN nanosheets were utilized as a photocatalyst to remove model pollutants methylene blue (MB) dye. The basic physio-chemical properties of GO-gCN layered materials have been analyzed by various characterization techniques. In addition, the proposed materials have a higher photocatalytic ability toward the degradation of aqueous solution of MB dye under visible light irradiation within a short treatment time. This is because it's the synergistic effects of GO-gCN layer-by-layer structures produced by π─π stacking with charge-transfer interactions. The gCN with GO composite can able to enhance the charge transfer and light-harvesting properties. Under the influence of photocatalyst, the surface of Graphene oxide undergoes the separation and combination of carbonyl radicals, hydroxyl radicals, epoxy radicals, and electron-hole pairs. This enhances the absorption of visible light and improves the degradation of MB, when GO is incorporated into gCN. The removal efficiency of MB reached up to 82.311% within the short treatment time.
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