当前位置：
X-MOL 学术
›
ACS Appl. Energy Mater.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Bi2O3@Carbon Nanocomposites for Solar-Driven Photocatalytic Degradation of Chlorophenols
ACS Applied Energy Materials ( IF 5.4 ) Pub Date : 2019-03-12 00:00:00 , DOI: 10.1021/acsanm.9b00206 Qiang Hao 1 , Yiwen Liu 1 , Tong Chen , Qingfeng Guo , Wei Wei 1 , Bing-Jie Ni 1
ACS Applied Energy Materials ( IF 5.4 ) Pub Date : 2019-03-12 00:00:00 , DOI: 10.1021/acsanm.9b00206 Qiang Hao 1 , Yiwen Liu 1 , Tong Chen , Qingfeng Guo , Wei Wei 1 , Bing-Jie Ni 1
Affiliation
|
Chlorophenols are corrosive and toxic in a water environment, which have caused increasing concerns and encourage the development of solar-driven techniques with highly efficient photocatalysts for green remediation. Coupling photocatalysis with the surface plasmon resonance (SPR) effect is a practical solution for boosting the utilization of solar light in the IR region while improving the overall performance of the photocatalysts. However, a facile and green strategy to synthesize metallic non-noble bismuth (Bi0)-based photocatalysts is still lacking. Herein, we report smart Bi/Bi2O3/C composites with high performance for the photocatalytic degradation of 2,4-dichlorophenol. Advanced characterizations such as X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and high-resolution transmission electron microscopy are applied to analyze the morphology and structure of the prepared materials. The photodegradation rate of the hybrid is significantly enhanced compared with the sole counterparts, which are 1.60-fold of Bi2O3 and 2.47-fold of g-C3N4. The synthesized Bi/C-2 exhibits excellent stability without a decline in activity after four cycles. The SPR effect of Bi is identified to account for the strengthened photoreactivity. Moreover, the relatively high utilization efficiency of solar energy and the rapid separation rate of photogenerated electron and hole pairs helped to enhance the photocatalytic performance synergistically.
中文翻译：
Bi 2 O 3 @碳纳米复合材料对太阳能驱动的氯酚光催化降解
氯酚在水环境中具有腐蚀性和毒性，这引起了越来越多的关注，并鼓励开发太阳能驱动的技术以及用于绿色修复的高效光催化剂。将光催化与表面等离振子共振（SPR）效应相结合是一种实用的解决方案，可提高IR区域中太阳光的利用率，同时改善光催化剂的整体性能。然而，仍然缺乏合成金属非贵重铋（Bi 0）基光催化剂的简便且绿色的策略。在此，我们报告智能Bi / Bi 2 O 3/ C复合材料具有光催化降解2,4-二氯苯酚的高性能。X射线衍射，傅立叶变换红外光谱，X射线光电子能谱和高分辨率透射电子显微镜等高级表征可用于分析所制备材料的形态和结构。与单独的对应物相比，杂化物的光降解速率显着提高，Bi 2 O 3的光降解速率为1.60倍，gC 3 N 4的光降解速率为2.47倍。合成的Bi / C-2显示出优异的稳定性，四个循环后活性没有下降。Bi的SPR效应被认为是光反应性增强的原因。此外，相对较高的太阳能利用效率和光生电子与空穴对的快速分离速率有助于协同提高光催化性能。
更新日期：2019-03-12
中文翻译：
Bi 2 O 3 @碳纳米复合材料对太阳能驱动的氯酚光催化降解
氯酚在水环境中具有腐蚀性和毒性，这引起了越来越多的关注，并鼓励开发太阳能驱动的技术以及用于绿色修复的高效光催化剂。将光催化与表面等离振子共振（SPR）效应相结合是一种实用的解决方案，可提高IR区域中太阳光的利用率，同时改善光催化剂的整体性能。然而，仍然缺乏合成金属非贵重铋（Bi 0）基光催化剂的简便且绿色的策略。在此，我们报告智能Bi / Bi 2 O 3/ C复合材料具有光催化降解2,4-二氯苯酚的高性能。X射线衍射，傅立叶变换红外光谱，X射线光电子能谱和高分辨率透射电子显微镜等高级表征可用于分析所制备材料的形态和结构。与单独的对应物相比，杂化物的光降解速率显着提高，Bi 2 O 3的光降解速率为1.60倍，gC 3 N 4的光降解速率为2.47倍。合成的Bi / C-2显示出优异的稳定性，四个循环后活性没有下降。Bi的SPR效应被认为是光反应性增强的原因。此外，相对较高的太阳能利用效率和光生电子与空穴对的快速分离速率有助于协同提高光催化性能。
京公网安备 11010802027423号