采用溶剂热法,以 Bi(NO3)3·5H2 O 和十六烷基三甲基溴化铵(CTAB)为原料,乙二醇为溶液,制备花状微球的 BiOBr。运用 XRD、SEM、EDX 和UV-Vis等手段对其进行表征。以可见光下降解罗丹明B为研究对象,考察了催化剂投加量、染料溶液初始浓度等对光催化活性的影响,并对催化剂的稳定性进行了研究。结果表明,BiOBr有着出色的稳定性,在可见光下展现出较高的催化活性,当投加量为0.2g,可见光下照射30min,20mg/L 的罗丹明 B 溶液能全部降解。
The flower-like BiOBr microspheres was synthesized by hydrothermal method in ethylene glycol (EG) condition,taking the Bi(NO3 )3 ·5 H2 O and the cetyltrimethylammonium bromide(CTAB)as the raw materi-als.The prepared samples were characterized by XRD,SEM,EDX,and UV-Vis spectroscopy.The photocata-lytic activity of the catalyst was evaluated by photocatalytic degradation of Rhodamin B under visible light irra-diation.The dosage of catalyst,initial concentration of solution for photocatalytic degradation Rhodamin B were investigated,the stability of the catalyst was also studied.The results revealed that BiOBr had a good stability and exhibited high catalytic activity under the visible light irradiation.When the dosage of BiOBr photocatalyst was 0.2g,the 20mg/L Rhodamin B could be degradated under visible light irradiation for 30min.
参考文献
| [1] | Zou Zhigang;Ye Jinhua;Sayama K et al.Direct split-ting of water under visible light irradiation with an oxide semiconductor photocatalyst[J].Nature,2001,414:625. |
| [2] | Moumita Kar;Amit Basak .Design, Synthesis, and Biological Activity of Unnatural Enediynes and Related Analogues Equipped with pH-Dependent or Phototriggering Devices[J].Chemical Reviews,2007(7):2861-2890. |
| [3] | 刘利,崔文权,梁英华,邱发礼.Ag掺杂的K2La2Ti3O10可见光催化制氢的研究[J].功能材料,2010(04):716-718,721. |
| [4] | Vaidya, S.;Patra, A.;Ganguli, A.K. .CdS@TiO_2 and ZnS@TiO_2 core-shell nanocomposites: Synthesis and optical properties[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2010(1/3):130-134. |
| [5] | Wenquan Cui,Yueli Qi,Li Liu,Dipak Rana,Jinshan Hu,Yinghua Liang.Synthesis of PbS-K2La2Ti3O10 composite and its photocatalytic activity for hydrogen production[J].自然科学进展（英文版）,2012(02):120-125. |
| [6] | Kako T;Zou ZG;Katagiri M;Ye JH .Decomposition of organic compounds over NaBiO3 under visible light irradiation[J].Chemistry of Materials: A Publication of the American Chemistry Society,2007(26):198-202. |
| [7] | Zhenfeng Bian;Yuning Huo;Yi Zhang .Aerosol-spay assisted assembly of Bi2Ti2O7 crystals in uniform porous microspheres with enhanced photocatalytic activity[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2009(1/2):247-253. |
| [8] | Huo Yuning;Miao Miao;Zhang Yi et al.Aerosol-spra-ying preparation of a mesoporous hollow spherical BiFeO3 visible photocatalyst with enhanced activity and durability[J].Chemical Communications,2011,47:2089-2091. |
| [9] | Zhang J;Shi FJ;Lin J;Chen DF;Gao JM;Huang ZX;Ding XX;Tang CC .Self-assembled 3-D architectures of BiOBr as a visible light-driven photocatalyst[J].Chemistry of Materials: A Publication of the American Chemistry Society,2008(9):2937-2941. |
| [10] | Shang Meng;Wang Wenzhong;Zhang Ling .Prepara-tion of BiOBr lamellar structure with high photocatalytic activity by CTAB as Br source and template[J].Jour-nal of Hazardous Materials,2009,167:803-809. |
| [11] | AN Huizhong,DU Yi,WANG Tianmin,WANG Cong,HAO Weichang,ZHANG Junying.Photocatalytic properties of BiOX (X=Cl, Br, and I)[J].稀有金属（英文版）,2008(03):243-250. |
| [12] | Zhang X;Ai ZH;Jia FL;Zhang LZ .Generalized one-pot synthesis, characterization, and photocatalytic activity of hierarchical BiOX (X = Cl, Br, I) nanoplate microspheres[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2008(3):747-753. |
| [13] | Wendeng Wang;Fuqiang Huang;Xinping Lin .Visible-light-responsive photocatalysts xBiOBr-(1-x)BiOI[J].Catalysis Communications,2008(1):8-12. |
| [14] | CTAB-assisted synthesis of monoclinic BiVO_4 photocatalyst and its highly efficient degradation of organic dye under visible-light irradiation[J].Journal of hazardous materials,2010(1/3):194. |
| [15] | Zhou Lin;Wang Wenzhong;Zhang Lisha et al.Single-crystalline BiVO4 microtubes with square cross-sec-tions:microstructure,growth mechanism,and photo-catalytic property[J].Physical Chemistry Chemical Physics,2007,111(37):13659-13664. |
| [16] | Shi Zhuqiang;Wang Yan;Fan Caimei et al.Prepara-tion and photocatalytic activity of BiOCl catalytic[J].Transactions of Nonferrous Metals Society of China,2011,21:2254-2258. |
| [17] | Henle J;Simon P;Frenzel A;Scholz S;Kaskel S .Nanosized BiOX (X = Cl, Br, I) particles synthesized in reverse microemulsions[J].Chemistry of Materials: A Publication of the American Chemistry Society,2007(3):366-373. |
| [18] | ZhangSheng Liu;BianTao Wu;DongHu Xiang;YaBo Zhu .Effect of solvents on morphology and photocatalytic activity of BiOBr synthesized by solvothermal method[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,2012(11):3753-3757. |
| [19] | Huo Yuning;Zhang Jia;Miao Miao et al.Solvother-mal synthesis of flower-like BiOBr microspheres with highly visible-lighttphotocatalytic performances[J].Applied Catalysis B:Environmental,2012,111-112:334-341. |
| [20] | Dieqing Zhang;Meicheng Wen;Bo Jiang;Guisheng Li;Jimmy C. Yu .Ionothermal synthesis of hierarchical BiOBr microspheres for water treatment[J].Journal of hazardous materials,2012(Apr.15):104-111. |
| [21] | Yinchang Feng;Lei Li;Junwei Li;Junfeng Wang;Lu Liu .Synthesis of mesoporous BiOBr 3D microspheres and their photodecomposition for toluene[J].Journal of hazardous materials,2011(2):538-544. |
| [22] | 张喜 .新型卤化氧铋BiOX(X=Cl、Br、I)光催化剂的合成、表征及催化性能研究[D].华中师范大学,2010. |
| [23] | 苗苗 .非常规技术合成铋系可见光催化剂及其性能研究[D].上海师范大学,2011. |
| [24] | 黄倩倩 .铋系纳米光催化剂的制备、表征及光催化性能研究[D].南京师范大学,2011. |
| [25] | ZHIHUI Al;WINGKEI HO;SHUNCHENG LEE .Efficient Photocatalytic Removal of NO in Indoor Air with Hierarchical Bismuth Oxybromide Nanoplate Microspheres under Visible Light[J].Environmental Science & Technology: ES&T,2009(11):4143-4150. |
| [26] | Akihiko Kudo;Masahiko Sekizawa .Photocatalytic H_2 evolution under visible light irradiation on Ni-doped ZnS photocatalyst[J].Chemical communications,2000(15):1371-1372. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%