以无水乙醇-甲酰胺的混合溶液为溶剂,在高压釜中利用氧化石墨与氯化镧于100℃反应制备了氧化镧/还原型氧化石墨复合材料(La2O3/RGO).研究了反应时间和溶剂配比对产物的影响,通过XRD,SEM,IR,XPS对产品进行了表征.结果表明:氧化石墨被还原成还原型氧化石墨,氧化镧与还原氧化石墨存在化学键相互作用,复合材料中La-O共价键的强度比通常所见的La-O键强.当溶剂配比为2∶1(乙醇/甲酰胺),反应时间24h时得到的复合材料对光催化过氧化氢氧化亚甲基蓝具有良好活性,脱色率达96.2％.
参考文献
| [1] | Palanisamy, S.;Chen, S.-M.;Sarawathi, R..A novel nonenzymatic hydrogen peroxide sensor based on reduced graphene oxide/ZnO composite modified electrode[J].Sensors and Actuators, B. Chemical,2012:372-377. |
| [2] | 于辰伟,伏文,陈春年.氧化铜纳米棒/氧化石墨烯的制备及催化性能测试[J].金属功能材料,2013(02):31-35. |
| [3] | 高俊峰 .过渡金属表面石墨烯和硅烯的成核生长机理与相互作用[D].大连:大连理工大学,2012. |
| [4] | Zhang, Y.;Tian, J.;Li, H.;Wang, L.;Qin, X.;Asiri, A.M.;Al-Youbi, A.O.;Sun, X. .Biomolecule-assisted, environmentally friendly, one-pot synthesis of CuS/reduced graphene oxide nanocomposites with enhanced photocatalytic performance[J].Langmuir: The ACS Journal of Surfaces and Colloids,2012(35):12893-12900. |
| [5] | Pastrana-Martínez L M;Morales-Torres S;Likodimos V;Figueiredo J L Faria J L Falaras P Silva A M T .Advanced nanostructured photocatalysts based on reduced graphene oxide-TiO2 composites for degradation of diphenhydramine pharmaceutical and methyl Orange dye[J].Applied Catalysis B:Environmental,2012,123-124:241. |
| [6] | Wang J F;Tsuzuki T;Tang B;Hou X L Sun L Wang X G .Reduced graphene oxide/ZnO composite:Reusable adsorbent for pollutant management[J].Acs Appl Mater Interfaces,2012,4:3084. |
| [7] | Chen G D;Sun M;Wei Q;Zhang Y F Zhu B C Du B .Ag3PO4/graphene-oxide composite with remarkably enhanced visible light driven photocatalytic activity toward dyes in water[J].Journal of Hazardous Materials,2010,244-245:86. |
| [8] | 张林竹 .Fenton试剂处理印染废水的实验研究[D].武汉理工大学,2009. |
| [9] | 姜聚慧,陈华军,娄向东,席国喜.UV/草酸铁/H2O2法处理染料废水[J].水处理技术,2006(05):42-44,51. |
| [10] | 符馨元,黄剑锋,曹丽云,李嘉胤.不同形貌氢氧化镧纳米晶的光催化性能[J].硅酸盐学报,2013(08):1158-1162. |
| [11] | 苏育志;刘成波;张瑞芬;褶艳芬 .氧化石墨的合成及其结构研究[J].广州师院学报(自然科学版),2000,21(03):55. |
| [12] | 李茜 .超微氧化镧颗粒制备及性能研究[D].天津科技大学,2009. |
| [13] | Min Y L;Zhang K;Zhao W;Zheng F C Chen Y C Zhang Y G .Enhanced chemical interaction between TiO2 and graphene oxide for photocatalytic decolorization of methylene blue[J].CHEMICAL ENGINEERING JOURNAL,2012,193-194:203. |
| [14] | Jincheng Liu;Hongwei Bai;Yinjie Wang;Zhaoyang Liu;Xiwang Zhang;Darren Delai Sun .Self-Assembling TiO_2 Nanorods on Large Graphene Oxide Sheets at a Two-Phase Interface and Their Anti-Recombination in Photocatalytic Applications[J].Advanced functional materials,2010(23):4175-4181. |
| [15] | 龙梅,丛野,李轩科,崔正威,董志军,袁观明.部分还原氧化石墨烯/二氧化钛复合材料的水热合成及其光催化活性[J].物理化学学报,2013(06):1344-1350. |
| [16] | 肖淑华,沈明,朱沛英,张东.水合肼还原氧化石墨烯的研究[J].材料开发与应用,2011(02):45-50. |
| [17] | 詹光,徐志高,余军霞,池汝安.撞击流反应器制备氧化镧超细粉体[J].稀土,2011(03):28-34. |
| [18] | Signorelli A J;Hayes R G .X-ray photoelectron spectroscopy of various core levels of lanthanum ions:the roles of monopole excitation and elect rostatic coupling[J].Physical Review B:Condensed Matter,1973,8(01):81. |
| [19] | 马红钦,谭欣,朱慧铭,张继炎,张鎏.La1-xCexFeO3钙钛石高变催化剂的XPS研究[J].中国稀土学报,2003(04):445-448. |
| [20] | 冯绍杰,谷少东,汪正红.La2Mo2O9氧离子导体的合成及XPS研究[J].安徽工程科技学院学报（自然科学版）,2006(01):5-7. |
| [21] | Wagner C D.Handbook of X-ray Photoelectron Spectroscopy:A Reference Book of Standard Data for Use in X-ray Photoelectron Spectroscopy[M].Physical Electronics Division,Perkin-Elmer Corp,1979:132. |
| [22] | 程素,王丽,刘磊.纳米La0.8A'0.2Mn1-xCuxO3（A'=Ce and/or Sr）的制备、表征及其高效催化NO+CO的性能研究[J].中国稀土学报,2012(01):34-40. |
| [23] | 程聪 .高级氧化法处理难降解有机废水的研究[D].武汉:武汉纺织大学,2013. |
| [24] | 叶美英,李宝兴,叶荣民,刘金华.微反应器中二氧化钛/过氧化氢协同光催化降解及其应用[J].分析化学,2010(05):643-647. |
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