EN改性介孔石墨相氮化碳（g-C3N4）材料的构筑及其光催化还原U（Ⅵ）性能研究
改性介孔石墨相氮化碳（g-C3N4）材料的构筑及其光催化还原U（Ⅵ）性能研究
- 核科学与工程 2025年45卷第1期 页码：10-24
- 作者机构：
1. 南华大学核科学技术学院
2. 南华大学创新创业学院
- 作者简介：
- 基金信息：国家自然科学基金资助项目(No.22176083);湖南省自然科学基金资助项目(No.2021JJ30566);湖南省研究生科研创新基金资助项目(No.203YXC002)
DOI：10.20190/j.cnki.02580918.202501002
中图分类号： X703;X771;O644.1;O643.36-
纸质出版：2025
- 稿件说明：
移动端阅览
于明玥, 郝帅, 黄文珑, 等. 改性介孔石墨相氮化碳（g-C3N4）材料的构筑及其光催化还原U（Ⅵ）性能研究[J]. 核科学与工程, 2025,45(1):10-24.
于明玥, 郝帅, 黄文珑, et al. 改性介孔石墨相氮化碳（g-C3N4）材料的构筑及其光催化还原U（Ⅵ）性能研究[J]. 2025, 45(1): 10-24.
于明玥, 郝帅, 黄文珑, 等. 改性介孔石墨相氮化碳（g-C3N4）材料的构筑及其光催化还原U（Ⅵ）性能研究[J]. 核科学与工程, 2025,45(1):10-24. DOI： 10.20190/j.cnki.02580918.202501002.
于明玥, 郝帅, 黄文珑, et al. 改性介孔石墨相氮化碳（g-C3N4）材料的构筑及其光催化还原U（Ⅵ）性能研究[J]. 2025, 45(1): 10-24. DOI： 10.20190/j.cnki.02580918.202501002.
摘要
以纳米二氧化硅为硬模板、三聚氰胺为前驱体，通过热缩聚法高温制备了石墨相氮化碳的低聚物密勒胺（melem）
采用扫描电子显微镜（SEM）、氮气吸脱附（BET）、傅里叶变换红外分析（FITR）、X射线衍射（XRD）等对其进行了表征，并研究了其光催化还原U（Ⅵ）的性能。结果表明，melem/g-C
3
N
4
复合材料具有介孔结构，三聚氰胺和二氧化硅比例为2∶1的复合材料比表面积比原石墨相氮化碳提高约16倍；在可见光下，对于U（Ⅵ）的光催化还原率达到了94.8%
约是原石墨相碳化氮材料的两倍；其还原反应速率常数为0.011 7 min
-1
约为原g-C
3
N
4
(0.003 4 min
-1
)的3.5倍；其禁带宽度缩窄，可见光吸收范围从约450 nm拓宽至500 nm
具备较高的稳定性和优异的光催化还原性能。
Abstract
关键词
Keywords
references
王文霞,刘小丰,陈浠,许艳虹,蒙振邦,郑俊霞,安太成.多孔g-C_3N_4基光催化材料的制备及应用研究进展[J].化工进展,2022(01).
张源萍,李晓云,邸亚丽,赵雨花,亢茂青,李其峰,王军威.蜜勒胺催化剂的制备及在环碳酸酯合成中的应用研究[J].燃料化学学报,2021(03).
Tamilselvan R.,Selwynraj A. Immanuel.A novel g-C3N4 photocatalytic pretreatment for reducing silica and modifying the structure of rice straw for sustainable biofuel production[J].Fuel,2024.
Wang Xinqi,Cao Lijiu,Hu Yue,Chen Yufang,Jin Tao,Huang Jian,Zhang Xinhe,Lin Shudong.Highly transparent, hydrophobic, hard and flexible coatings based on a novel melamine-formaldehyde resin synthesized by hydrophobic melamine[J].Progress in Organic Coatings,2023.
Xun-Heng Jiang,Qiu-Ju Xing,Xu-Biao Luo,Fei Li,Jian-Ping Zou,Shan-Shan Liu,Xiang Li,Xiang-Ke Wang.Simultaneous photoreduction of Uranium(VI) and photooxidation of Arsenic(III) in aqueous solution over g-C 3 N 4 /TiO 2 heterostructured catalysts under simulated sunlight irradiation[J].Applied Catalysis B: Environmental,2018.
School of Chemistry and Chemical Engineering, Southeast University, Nanjing, China,School of Chemistry and Chemical Engineering, Southeast University, Nanjing, China,School of Chemistry and Chemical Engineering, Southeast University, Nanjing, China,School of Chemistry and Chemical Engineering, Southeast University, Nanjing, China,School of Chemistry and Chemical Engineering, Southeast University, Nanjing, China,School of Chemistry and Chemical Engineering, Southeast University, Nanjing, China,School of Chemistry and Chemical Engineering, Southeast University, Nanjing, China.Melem based multifunctional catalyst for chemical fixation of carbon dioxide into cyclic carbonate[J].Journal of CO2 Utilization,2018.
Li Zi-Jie,Huang Zhi-Wei,Guo Wen-Lu,Wang Lin,Zheng Li-Rong,Chai Zhi-Fang,Shi Wei-Qun.Enhanced Photocatalytic Removal of Uranium(VI) from Aqueous Solution by Magnetic TiO2/Fe3O4 and Its Graphene Composite.[J].Environmental science & technology,2017.
Mengshuai Liu,Jianwen Lan,Lin Liang,Jianmin Sun,Masahiko Arai.Heterogeneous catalytic conversion of CO2 and epoxides to cyclic carbonates over multifunctional tri-s-triazine terminal-linked ionic liquids[J].Journal of Catalysis,2017.
Zheng Yun,Lin Lihua,Wang Bo,Wang Xinchen.Graphitic Carbon Nitride Polymers toward Sustainable Photoredox Catalysis.[J].Angewandte Chemie (International ed. in English),2015.
Guoping Dong,Yuanhao Zhang,Qiwen Pan,Jianrong Qiu.A fantastic graphitic carbon nitride (g-C 3 N 4 ) material: Electronic structure, photocatalytic and photoelectronic properties[J].Journal of Photochemistry & Photobiology, C: Photochemistry Reviews,2014.
Anke Schwarzer,Tatyana Saplinova,Edwin Kroke.Tri- s -triazines ( s -heptazines)—From a “mystery molecule” to industrially relevant carbon nitride materials[J].Coordination Chemistry Reviews,2013.
Hyunwoong Park,Yiseul Park,Wooyul Kim,Wonyong Choi.Surface modification of TiO 2 photocatalyst for environmental applications[J].Journal of Photochemistry & Photobiology, C: Photochemistry Reviews,2013.
Shinobu Uemura,Masashi Aono,Kenki Sakata.Thermodynamic Control of 2D Bicomponent Porous Networks of Melamine and Melem: Diverse Hydrogen-Bonded Networks[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2013.
Wang Yong,Wang Xinchen,Antonietti Markus.Polymeric graphitic carbon nitride as a heterogeneous organocatalyst: from photochemistry to multipurpose catalysis to sustainable chemistry.[J].Angewandte Chemie (International ed. in English),2012.
Liming Sun,Xian Zhao,Chun-Jiang Jia.Enhanced visible-light photocatalytic activity of g-C3N4-ZnWO4 by fabricating a heterojunction: investigation based on experimental and theoretical studies[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2012.
Sattler Andreas,Pagano Sandro,Zeuner Martin,Zurawski Alexander,Gunzelmann Daniel,Senker Jürgen,Müller-Buschbaum Klaus,Schnick Wolfgang.Melamine-melem adduct phases: investigating the thermal condensation of melamine.[J].Chemistry (Weinheim an der Bergstrasse, Germany),2009.
Maria D. Hernandez-Alonso,Fernando Fresno,Silvia Suarez,Juan M. Coronado.Development of alternative photocatalysts to TiO_2: Challenges and opportunities[J].Energy & environmental science: EES,2009.
Jürgens Barbara,Irran Elisabeth,Senker Jürgen,Kroll Peter,Müller Helen,Schnick Wolfgang.Melem (2,5,8-triamino-tri-s-triazine), an important intermediate during condensation of melamine rings to graphitic carbon nitride: synthesis, structure determination by X-ray powder diffractometry, solid-state NMR, and theoretical studies.[J].Journal of the American Chemical Society,2003.
0
浏览量
9
下载量
0
CSCD
- Meta-XML下载
- BibTeX下载
- Endnote下载
- RefMan 下载
- NoteExpress下载
- NoteFirst下载
关联资源
相关文章
相关作者
相关机构
AI问答- 技术支持由北京北大方正电子有限公司提供 京ICP备09064830号-19
京公网安备11010802024621 - 本系统建议在Chrome、 IE9+ 以上版本浏览器阅读本站内容，360浏览器请切换至极速模式
- Cookies帮助我们提供服务并提供个性化体验。使用本网站，即表示您同意我们使用Cookies