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化工新型材料  2019, Vol. 47 Issue (6): 204-210    
  科学研究 本期目录 | 过刊浏览 | 高级检索 |
硼掺杂石墨相氮化碳及其光催化性能研究
马元功, 郭小峰*, 吴启凡, 王宏波, 向前, 柴坝
重庆交通大学材料科学与工程学院,重庆400000
Study on boron-doped graphitic carbon nitride and its photocatalytic property
Ma Yuangong, Guo Xiaofeng, Wu Qifan, Wang Hongbo, Xiang Qian, Chai Ba
School of Material Science and Engineering,Chongqing Jiaotong University,Chongqing 400000
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摘要 以硼砂、硼酸、氧化硼为硼源对石墨相氮化碳(g-C3N4)进行硼掺杂,通过一系列实验确定了最优的掺杂硼源、掺杂温度和掺杂比例,并对掺杂处理方法进行了优化。通过XRD、UV-Vis、XPS、FT-IR、PL、TEM和SEM等手段对样品进行表征分析,以罗丹明B为降解用污染物测试样品的光催化活性。结果表明:硼的掺入拓宽了样品对可见光的响应范围,减小了样品的能带宽度,提高了对可见光的利用率,同时抑制了光生电子-空穴的复合,增加了比表面积,进而显著提高了样品的光催化性能。其中样品B-CN(1∶6)光催化活性最高,其光催化降解罗丹明B的速率常数是 g-C3N4的3.1倍。
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马元功
郭小峰
吴启凡
王宏波
向前
柴坝
关键词:  石墨相氮化碳  光催化  掺杂  罗丹明B    
Abstract: Boron doping graphitic carbon nitride used borax,boric acid and boron oxide as boron source.The best doped boron source,the doping temperature and doping ratio were determined by a series of experiments,and the doping treatment method was optimized.The samples were characterized by XRD,UV-Vis,XPS,FT-IR,PL,TEM and SEM.The photocatalytic activity of samples was tested by rhodamine B as degradation pollutant.The results showed that the introduction of boron broadened the response range of visible light,reduced the bandgap width of sample,improved the utilization of visible light,suppressed the recombination of photogenerated electrons and holes,and increased specific surface area.Furthermore,the photocatalytic properties were improved significantly.And the photocatalytic activity of B-CN(1∶6) was the highest,its rate constant of photocatalytic degradation for rhodamine B was 3.1 times of g-C3N4.
Key words:  graphitic carbon nitride    photocatalysis    doping    rhodamine B
收稿日期:  2018-01-29                出版日期:  2019-06-20      发布日期:  2019-07-05      期的出版日期:  2019-06-20
基金资助: 重庆市科学技术委员会基础与前沿研究计划(cstc2014jcyjA2/30017);山区桥梁与隧道工程国家重点实验室培育基地(重庆交通大学)开放基金(CQSLBF-Y15-6,No.CQSLBF-Y14-5);国家内河航道整治工程技术研究中心(重庆交通大学)开放基金(SLK2013A03);交通土木工程材料国家和地方联合工程实验室开放基金(LHSYS-2014-005)
通讯作者:  郭小峰(1978-),男,教授,博士,主要研究方向为绿色洁净能源与先进智能材料。   
作者简介:  马元功(1992-),男,硕士研究生,主要研究方向为催化材料和无机非金属材料。
引用本文:    
马元功, 郭小峰, 吴启凡, 王宏波, 向前, 柴坝. 硼掺杂石墨相氮化碳及其光催化性能研究[J]. 化工新型材料, 2019, 47(6): 204-210.
Ma Yuangong, Guo Xiaofeng, Wu Qifan, Wang Hongbo, Xiang Qian, Chai Ba. Study on boron-doped graphitic carbon nitride and its photocatalytic property. New Chemical Materials, 2019, 47(6): 204-210.
链接本文:  
http://www.hgxx.org/CN/  或          http://www.hgxx.org/CN/Y2019/V47/I6/204
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