Please wait a minute...
 首页  期刊简介 期刊订阅 广告合作 联系我们
 
最新录用  |  当期目录  |  过刊浏览  |  热点文章  |  阅读排行
化工新型材料  2019, Vol. 47 Issue (5): 198-202    
  科学研究 本期目录 | 过刊浏览 | 高级检索 |
碳点/TiO2的制备及对亚甲基蓝的光催化性能
李胜英, 陈慧文, 苏惠, 苏志恒, 冯建海*
河池学院化学与生物工程学院,宜州546300
Preparation of CQDs/TiO2 and its photocatalytic activity for methylene blue
Li Shengying, Chen Huiwen, Su Hui, Su Zhiheng, Feng Jianhai
College of Chemical and Biological Engineering,Hechi University,Yizhou 546300
下载:  PDF (2332KB) 
输出:  BibTeX | EndNote (RIS)      
摘要 碱性条件下以葡萄糖为碳量子碳源,水热法制备碳量子点,碳点与TiO2通过冷凝回流制备TiO2复合材料(CQDs/TiO2),通过分子荧光、扫描电镜等手段对碳点溶液和材料进行表征,并研究CQDs/TiO2在紫外灯、白炽灯下不同时间、pH下对亚甲基蓝的吸附降解性能及循环性能。结果表明:通过分子荧光成功制备了碳点溶液;CQDs/TiO2虽然在扫描电镜和X射线衍射中的形貌和结构与纯TiO2并无明显差异,但其在红外谱图(1090和2354cm-1)和热重(400~600℃)与纯TiO2相比均有差异,在一定程度上证明了碳点成分的存在;固体紫外漫反射结果显示在200~800nm波长下CQDs/TiO2材料对光的吸收都强于TiO2;CQDs/TiO2在同种光源下对亚甲基蓝溶液的降解率都比纯TiO2的高,且白炽灯效果要优于紫外灯;材料对亚甲基蓝的降解率都随pH的增加而提高;CQDs/TiO2在白炽灯下的循环性能较好。
服务
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章
李胜英
陈慧文
苏惠
苏志恒
冯建海
关键词:  TiO2  碳量子点  光催化    
Abstract: Carbon dots (CQDs)/TiO2 composites were prepared by condensation reflux with TiO2 and carbon quantum dots (CQDs) which were prepared by hydrothermal method at alkaline conditions,using glucose as carbon quantum dots' source.The carbon dots' solution and materials were characterized by molecular fluorescence and scanning electron microscopy.The adsorption and degradation of methylene blue by CQDs/TiO2 at different pH,different time under ultraviolet lamp and white lamp were studied.The results showed that there was no significant difference between the morphology and structure of CQDs/TiO2 in SEM and XRD,but the difference between CQDs/TiO2 and pure TiO2 in infrared spectra (1090cm-1 and 2354cm-1) and thermogravimetry (400~600℃) showed the existence of carbon dots components.The results of solid UV diffuse reflection showed that the light absorption of CQDs/TiO2 was stronger than that of TiO2 at 200~800nm wavelength.The degradation rate of CQDs/TiO2 to methylene blue solution at the same light source was higher than that of pure TiO2,and the effect of white lamp was better than that of UV lamp,and the degradation rate of methylene blue increased with the increase of pH value,the cycle performance of CQDs/TiO2 at white light was better.
Key words:  TiO2    carbon quantum dot    photocatalysis
收稿日期:  2018-05-15                     发布日期:  2019-06-17      期的出版日期:  2019-05-20
基金资助: 广西高校中青年教师基础能力提升项目(2018KY0504);广西高校微生物及植物资源开发利用重点实验室(2017HL001);2018年自治区级大学生创新创业计划项目(201810605083)
通讯作者:  冯建海(1985-)。   
作者简介:  李胜英(1986-),女,硕士,讲师,主要研究方向为材料化学和环境治理。
引用本文:    
李胜英, 陈慧文, 苏惠, 苏志恒, 冯建海. 碳点/TiO2的制备及对亚甲基蓝的光催化性能[J]. 化工新型材料, 2019, 47(5): 198-202.
Li Shengying, Chen Huiwen, Su Hui, Su Zhiheng, Feng Jianhai. Preparation of CQDs/TiO2 and its photocatalytic activity for methylene blue. New Chemical Materials, 2019, 47(5): 198-202.
链接本文:  
http://www.hgxx.org/CN/  或          http://www.hgxx.org/CN/Y2019/V47/I5/198
[1] Li H P,Zhu Y H,Cao H M,et al.Preparation and characterization of photocatalytic carbon dots-sensitized electrospun titania nanostructured fibers[J].Materials Research Bulletin,2013,48(2):232-237.
[2] Wang M,Sun L,Lin Z,et al.p-n heterojunction photoelectrodes composed of Cu2O-loaded TiO2 nanotube arrays with enhancedphotoelectrochemical and photoelectrocatalytic activities[J].Energy Environ Sci,2016(4):1211-1220.
[3] 张钱新,王枫亮,谢治杰,等.掺N碳量子点负载于TiO2的复合催化剂光解甲芬那酸研究[J].中国环境科学,2017,37(8):2930-2940.
[4] Janjira S,Khanitta H,Sayan P.High photocatalytic activity of F-TiO2 on activated carbon[J].Materials Today:Proceedings,2017,4(5):6495-6501.
[5] Julián A,Rengifo H,Mirta B,et al.TiO2 modified with polyoxotungstates should induce visible-light absorption and high photocatalytic activity through the formation of surface complexes[J].Applied Catalysis B:Environmental,2016,189:99-109.
[6] Vipul S,Suneel K,Venkata K.Shape selective Au-TiO2 nanocomposites for photocatalytic applications[J].Materials Today:Proceedings,2016,3(6):1939-1948.
[7] Sun Y P,Zhou B,Lin Y,et al.Quantum-sized carbon dots for bright and colorful pHoto lumine scence[J].J Am Chem Soc,2006,128(24):7756-7757.
[8] 孙英祥,孙相宝,何志伟,等.桃花水热法一步合成水溶性荧光碳点[J].材料科学与工程学报,2014,32(3):393-397.
[9] 石鑫,徐建萍,李霖霖,等.碳量子点负载TiO2纳米棒阵列的光电化学性能[J].发光学报,2015,36(8):898-905.
[10] Sun M X,Ma X Q,Chen Xi,et al.A nanocomposite of carbon quantum dots and TiO2 nanotube arrays:enhancing photoelectrochemical and photocatalytic properties[J].RSC Adv,2014,4:1120-1127.
[11] Li H P,Zhu Y H,Cao H M,et al.Preparation and characterization of photocatalytic carbon dots-sensitized electrospun titania nanostructured fibers[J].Materials Research Bulletin,2013,48(2):232-237.
[12] Wang M,Han J,Hu Y,et al.Carbon-Incorporated NiO/TiO2 mesoporous shells with p-n heterojunctions for efficient visible light photocatalysis[J].ACS Appl Mater Interfaces,2016,8(43):29511-29521.
[13] Li H,He X,Liu Y,et al.One-step ultrasonic synthesis of water-soluble carbon nanoparticles with excellent photoluminescent properties[J].Carbon,2011,49(2):605-609.
[14] 张静,江玉亮,程钰,等.微波法制备丙三醇碳量子点并用作Fe3+探针[J].高等学校化学学报,2016,37(1):54-58.
[12] Zhang R,Chen W.Nitrogen-doped carbon quantum dots:facile synthesis and application as a “turn-off” fluorescent probe for detection of Hg2+ ions[J].Biosensors and Bioelectronics,2014,55:83-90.
[16] 张钱新,王枫亮,谢治杰,等.掺N碳量子点负载于TiO2的复合催化剂光解甲芬那酸研究[J].中国环境科学,2017,37(8):2930-2940.
[17] Li Y,Liu Zh M,Wu Y Ch,et al.Carbon dots-TiO2 nanosheets composites for photoreduction of Cr(Ⅵ) under sunlight illumination:favorable role of carbon dots[J].Applied Catalysis B:Environmental,2018,224:508-517.
[18] Zhang B,Halidan M,Zhang D D,et al.Preparation of coal-based C-Dots/TiO2 and its visible-light photocatalytic characteristics for degradation of pulping black liquor[J].Journal of photochemistry and photobiology A-Chemistry,2017,345:54-62.
[19] Li Y R,Liu Z M,Wu Y C,et al.Carbon dots-TiO2 nanosheets composites for photoreduction of Cr(VI) under sunlight illumination:Favorable role of carbon dots[J].Applied Catylysis B-Environmental,2018,224:508-517.
[1] 鲍晓宇, 张婷婷, 黄飞飞, 刘彬, 李瑞钊. 以甘蔗渣为基质的碳量子点的制备及表征[J]. 化工新型材料, 2019, 47(5): 114-116.
[2] 罗雪婷, 程继贵, 陈鹏起, 陈闻超, 夏永红. 金红石型纳米TiO2表面硅铝包覆方式及其性能研究[J]. 化工新型材料, 2019, 47(5): 152-155.
[3] 李森林, 黄金亮, 宁向梅, 陈永超, 师清奎. Al和S共掺杂金红石型TiO2第一性原理研究[J]. 化工新型材料, 2019, 47(5): 156-159.
[4] 邓雪莹, 李丽华, 张金生, 吴限, 马诚. GO改性ZnO/CeO2复合纳米光催化剂的制备及其光催化性能研究[J]. 化工新型材料, 2019, 47(5): 185-189.
[5] 胡秀虹, 张廷辉, 王翔, 蔡凌云, 李荡. 陶瓷负载TiO2复合材料的制备及光催化降解废水中苯酚的研究[J]. 化工新型材料, 2019, 47(5): 190-192.
[6] 张凯龙, 施妙艳, 倪貌貌, 陈佳祎, 汤淑利. 快速共沉淀法制备Ce掺杂ZnO及其日光催化性能研究[J]. 化工新型材料, 2019, 47(5): 193-197.
[7] 徐聪聪, 刘成伦, 徐龙君. 可见光响应型球形Zn/BiOBr的制备及其光催化性能研究[J]. 化工新型材料, 2019, 47(5): 203-207.
[8] 孙廷丽, 周少璐, 黎玉莲, 彭如群, 谢小保. 光催化材料及制品抗菌性能检测情况及标准化现状分析[J]. 化工新型材料, 2019, 47(5): 257-259.
[9] 李翠珍,邓慧宇,邹丽霞. 负载型改性TiO2光降解亚甲基蓝研究进展[J]. 化工新型材料, 2019, 47(4): 43-46.
[10] 周先波,陈嘉磊,胡亚一,刘琦,陈晨. 纳米氧化锌的改性及其光催化降解性能研究进展[J]. 化工新型材料, 2019, 47(4): 47-52.
[11] 宋肖飞,蔡以兵,王委委,魏取福,赵宏梅,刘伟. 多孔TiO2纳米纤维的制备及其对染料废水的光催化降解性能研究[J]. 化工新型材料, 2019, 47(4): 263-266.
[12] 余响林,王哲,刘佳俊,万佳琪,雍定利,黎俊波. 光/生物双降解纳米TiO2/CMC基高吸水树脂的合成及性能研究[J]. 化工新型材料, 2019, 47(4): 129-133.
[13] 赵素素,王美燕,刘洋洋,武博文,杨静. 层状液晶模板法制备纳米ZnO及其光催化降解亚甲基蓝的研究[J]. 化工新型材料, 2019, 47(4): 188-193.
[14] 赵秀琴,向乾坤. Zn掺杂改性TiO2的制备及其光催化性能研究[J]. 化工新型材料, 2019, 47(4): 194-195.
[15] 张慧勇. 纳米ZnO的制备及光催化性能研究[J]. 化工新型材料, 2019, 47(4): 196-199.
No Suggested Reading articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
京ICP备09035943号-38
版权所有 © 《化工新型材料》编辑部
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持:support@magtech.com.cn