Self-assembly synthesis of boron-doped graphitic carbon nitride hollow tubes for enhanced photocatalytic NOx removal under visible light
文献类型：期刊论文
| 作者 | Lee, SC (Lee, Shun Cheng)[ 5 ]; Ho, WK (Ho, Wingkei)[ 4 ]; Cao, JJ (Cao, Junji)[ 1,2,3 ]; Huang, TT (Huang, Tingting)[ 2,3 ]; Zhang, YF (Zhang, Yufei)[ 2,3 ]; Shi, XJ (Shi, Xianjin)[ 2,3 ]; Huang, Y (Huang, Yu)[ 2,3 ]; Chen, MJ (Chen, Meijuan)[ 1 ]; Wang, ZY (Wang, Zhenyu)[ 1,2 ] |
| 刊名 | Applied Catalysis B: Environmental
 |
| 出版日期 | 2018-10-30 |
| 卷号 | 239页码:352-361 |
| 关键词 | DFT predictions 1D tubular g-C3N4 B-doping Self-assembly Photocatalytic NO removal |
| DOI | 10.1016/j.apcatb.2018.08.030 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Oriented transfer of electron-hole charge carriers is important during photocatalytic processes. In this study, one-dimensional (1D) tubular B-doped graphitic carbon nitride (g-C3N4) with an effective charge transfer and separation was designed. The doping sites, energy level structure, and photo-generated electron-hole pair separation were predicted using systematical density functional theory (DFT) simulations. The supramolecular precursor for tubular g-C3N4 synthesis, namely melamine·cyanuric acid (M·CA), was controllably synthesized from a single melamine source. Intermolecular hydrogen bonding led to the arrangement of supramolecular aggregate structures into a prismatic crystal architecture during the hydrothermal treatment. The morphology modulation of g-C3N4 from bulk to 1D tubular architecture was realized by calcining the prism-like precursor. B-doped tubular g-C3N4 exhibited a narrower band-gap, multiple reflections of incident light, and oriented transfer of electron-hole charge carriers, which led to a widened light-harvesting range and improved photo-induced electron-hole pair separation and transfer ability. These factors contributed to the photocatalytic activity enhancement towards gaseous NOx degradation under visible light. In this work, a valuable design-fabrication pattern for g-C3N4 modification and engineering via DFT simulations was designed. Moreover, a strategy was developed for the simultaneous foreign atom doping and architecture control of g-C3N4 via the self-assembly of supramolecular precursors. |
| 语种 | 英语 |
| 源URL | [http://ir.ieecas.cn/handle/361006/9655]  |
| 专题 | 地球环境研究所_黄土与第四纪地质国家重点实验室（2010~） |
| 作者单位 | 1.Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China 2.Department of Science and Environmental Studies, The Hong Kong Institute of Education, Hong Kong, China; 3.State Key Labof Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, 710061, China; 4.Key Lab of Aerosol Chemistry & Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, 710061, China; 5.School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an, 710049, China; |
| 推荐引用方式 GB/T 7714 | Lee, SC ,Ho, WK ,Cao, JJ ,et al. Self-assembly synthesis of boron-doped graphitic carbon nitride hollow tubes for enhanced photocatalytic NOx removal under visible light[J]. Applied Catalysis B: Environmental,2018,239:352-361. |
| APA | Lee, SC .,Ho, WK .,Cao, JJ .,Huang, TT .,Zhang, YF .,...&Wang, ZY .(2018).Self-assembly synthesis of boron-doped graphitic carbon nitride hollow tubes for enhanced photocatalytic NOx removal under visible light.Applied Catalysis B: Environmental,239,352-361. |
| MLA | Lee, SC ,et al."Self-assembly synthesis of boron-doped graphitic carbon nitride hollow tubes for enhanced photocatalytic NOx removal under visible light".Applied Catalysis B: Environmental 239(2018):352-361. |
入库方式： OAI收割
来源：地球环境研究所
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