罗丹明B
气凝胶
光催化
降级(电信)
纤维素
材料科学
碳纤维
化学工程
罗丹明
化学
纳米技术
复合材料
催化作用
复合数
有机化学
计算机科学
光学
工程类
电信
物理
荧光
作者
Fangqin Liu,Minlang Fan,Xia Liu,Jinyang Chen
出处
期刊:Nanomaterials
[MDPI AG]
日期:2024-07-02
卷期号:14 (13): 1141-1141
摘要
A cellulose-based carbon aerogel (CTN) loaded with titanium dioxide (TiO2) and graphitic carbon nitride (g-C3N4) was prepared using sol–gel, freeze-drying, and high-temperature carbonization methods. The formation of the sol–gel was carried out through a one-pot method using refining papermaking pulp, tetrabutyl titanate, and urea as raw materials and hectorite as a cross-linking and reinforcing agent. Due to the cross-linking ability of hectorite, the carbonized aerogel maintained a porous structure and had a large specific surface area with low density (0.0209 g/cm3). The analysis of XRD, XPS, and Raman spectra revealed that the titanium dioxide (TiO2) and graphitic carbon nitride (g-C3N4) were uniformly distributed in the CTN, while TEM and SEM observations demonstrated the uniformly distributed three-dimensional porous structure of CTN. The photocatalytic activity of the CTN was determined according to its ability to degrade rhodamine B. The removal rate reached 89% under visible light after 120 min. In addition, the CTN was still stable after five reuse cycles. The proposed catalyst exhibits excellent photocatalytic performance under visible light conditions.
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