Facile fabrication of acidified g-C3N4/g-C3N4 hybrids with enhanced photocatalysis performance under visible light irradiation
文献类型：期刊论文
| 作者 | Yang, Xiaolong1; Qian, Fangfang1; Zou, Guojun2; Li, Mengli3; Lu, Jinren1; Li, Yiming1; Bao, Mutai1 |
| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 出版日期 | 2016-09-15 |
| 卷号 | 193页码:22-35 |
| 关键词 | g-C3N4 Acidified g-C3N4 Composite photocatalysts Visible-light-driven photocatalysis Charge separation and transfer |
| 英文摘要 | A highly efficient visible-light-driven acidified g-C3N4 (ACNS)/g-C3N4 isotype heterojunction photocatalysts were synthesized by ultrasonic dispersion assisted electrostatic self-assembly strategy for the first time. The photocatalytic oxidation ability of the novel photocatalysts were evaluated using methyl orange (MO) as a target pollutant. The obtained ACNS/g-C3N4 photocatalysts were characterized by X-ray powder diffraction (XRD), Fourier transform infrared spectrometry (FTIR), UV-vis diffuse reflection spectroscopy (DRS), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) methods. The photocatalysts exhibited a significantly enhanced photocatalytic performance in degrading MO under visible light illumination (lambda > 420 nm) compared with the pristine ACNS and g-C3N4 solely. The optimal ACNS content for the photocatalytic activity of the heterostructured composites was determined. The 30 wt.% ACNS/g-C3N4 exhibited the highest photo-catalytic activity, which showed a reaction rate constant as high as 0.0216 min(-1), 4.3 times higher than that of bare g-C3N4. The mechanism of the photocatalysts was investigated by determination of reactive species in the photocatalytic reactions and photoluminescence technique. The quenching effects of different scavengers displayed that the reactive h(+) and center dot O-2(-) played major role in the reaction systems. The synergic effect between the ACNS and g-C3N4 was found to lead to an improved photo-generated carrier separation and hence the photocatalytic activities of the composite photocatalysts were increased significantly. (C) 2016 Published by Elsevier B.V. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical |
| 研究领域[WOS] | Chemistry ; Engineering |
| 关键词[WOS] | GRAPHITIC CARBON NITRIDE ; HYDROGEN EVOLUTION ; G-C3N4 NANOSHEETS ; COMPOSITE PHOTOCATALYSTS ; C3N4 NANOSHEETS ; RHODAMINE-B ; HETEROJUNCTIONS ; DEGRADATION ; POLLUTANTS ; PHOTOREACTIVITY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000377234800004 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/23000]  |
| 专题 | 上海硅酸盐研究所_高性能陶瓷和超微结构国家重点实验室_期刊论文 |
| 作者单位 | 1.Ocean Univ China, Key Lab Marine Chem Theory & Technol, Minist Educ, 238 Song Ling Rd, Qingdao 266100, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, 18 Tian Shui Rd, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Ding Xi Rd, Shanghai 200050, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Xiaolong,Qian, Fangfang,Zou, Guojun,et al. Facile fabrication of acidified g-C3N4/g-C3N4 hybrids with enhanced photocatalysis performance under visible light irradiation[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2016,193:22-35. |
| APA | Yang, Xiaolong.,Qian, Fangfang.,Zou, Guojun.,Li, Mengli.,Lu, Jinren.,...&Bao, Mutai.(2016).Facile fabrication of acidified g-C3N4/g-C3N4 hybrids with enhanced photocatalysis performance under visible light irradiation.APPLIED CATALYSIS B-ENVIRONMENTAL,193,22-35. |
| MLA | Yang, Xiaolong,et al."Facile fabrication of acidified g-C3N4/g-C3N4 hybrids with enhanced photocatalysis performance under visible light irradiation".APPLIED CATALYSIS B-ENVIRONMENTAL 193(2016):22-35. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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