纳米网状结构钛酸锶钡的制备及其催化性能研究

doi:10.15541/jim20150245

无机材料学报 ›› 2015, Vol. 30 ›› Issue (12): 1334-1338.DOI: 10.15541/jim20150245 CSTR: 32189.14.10.15541/jim20150245

纳米网状结构钛酸锶钡的制备及其催化性能研究

曾涛¹, 白杨¹, 李浩², 毛朝梁³, 董显林³, 桂书祥¹

(1. 上海电力学院上海市电力材料防护与新材料重点实验室, 上海200090; 2. 惠州学院化学工程系, 惠州516007; 3. 中国科学院上海硅酸盐研究所, 无机功能材料与器件重点实验室, 上海200050)

收稿日期:2015-05-22 出版日期:2015-09-30 网络出版日期:2015-11-24

Fabrication of Barium Strontium Titanate Nanophotocatalysts with Gridding Structures and Their Photocatalytic Activities

ZENG Tao¹, BAI Yang¹, LI Hao², MAO Chao-Liang³, DONG Xian-Lin³, GUI Shu-Xiang¹

(1. Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, China; 2. Department of Chemical Engineering, Huizhou University, Huizhou 516007, China; 3. Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China)

Received:2015-05-22 Published:2015-09-30 Online:2015-11-24
Supported by:
Science and Technology Commission of Shanghai Municipality (14DZ2261000);High-level Talent Project of the University in Guangdong Province

摘要/Abstract

摘要：

采用溶胶-凝胶法在不同pH值条件下制备了纳米钛酸锶钡(BST)粉体。在pH值为4和2.4条件下合成的BST粉体都是单相并结晶良好。透射电镜结果显示, BST纳米粉体颗粒尺寸大约为100 nm, 当pH值为4时BST纳米颗粒开始通过相互连接形成纳米网状结构。经光催化降解罗丹明B研究发现, 在pH值为4条件下制备的纳米BST粉体表现出更高的光催化活性。这可能是因为在pH值为4时纳米网状结构的BST形成提高了光生载流子的迁移率, 从而提高了纳米BST在有机物降解过程中光催化效率。

关键词: (Ba,Sr)TiO3, 网状纳米结构, 光催化, 溶胶-凝胶法

Abstract:

Ba_0.7Sr_0.3TiO₃ (BST) nanocatalysts were prepared by a Sol-Gel method at pH of 2.4 and 4, respectively, both of which were presented as tetragonal phase. TEM images indicated that the BST sample obtained at pH = 2.4 was nanoparticles with an average size of about 100 nm, while that obtained at pH = 4 was gridding structures composed of nanocubes with a mean size of 100 nm. The photocatalytic behavior of BST in the degradation of Rhodamine B (RhB) was investigated. It was found that the BST catalysts with gridding structures showed much better photocatalytic performance than the BST nanoparticles. This could be attributed to the fact that the photo-generated carriers can migrate easily through the gridding-structured BST sample, which would enhance the photocatalytic activity during the degradation process. It was also found that both BST photocatalysts in this work showed good catalytic stability.

Key words: (Ba,Sr)TiO3, gridding-structure, photocatalyst, Sol-Gel

中图分类号:

X703

曾涛, 白杨, 李浩, 毛朝梁, 董显林, 桂书祥. 纳米网状结构钛酸锶钡的制备及其催化性能研究[J]. 无机材料学报, 2015, 30(12): 1334-1338.

ZENG Tao, BAI Yang, LI Hao, MAO Chao-Liang, DONG Xian-Lin, GUI Shu-Xiang. Fabrication of Barium Strontium Titanate Nanophotocatalysts with Gridding Structures and Their Photocatalytic Activities[J]. Journal of Inorganic Materials, 2015, 30(12): 1334-1338.

图/表 7

Fig. 1 XRD patterns of the BST at different pH

Fig. 2 TEM images of the (a, b) BST (pH=2.4) and (c, d) BST (pH=4)

Fig. 3 Schematic illustration of the formation process for BST gridding-structure (a-d) and the separation process for photo- generated carries (e)

Fig. 4 Typical diffuse reflection spectrum of the BST

Fig. 5 Normalized concentration of RhB (a) and logarithm of normalized concentration of RhB (b) at different reaction time

Table 1 The BET surface areas of the different BST catalysts, the rate constants in the degradation of RhB

Sample	BST (pH=2.4)	BST (pH=4)
BET surface/(m²·g^-1)	6.12	7.87
Rate constant/min^-1	0.018	0.059

Fig. 6 Cycling runs in the photocatalytic degradation of RhB in the presence of BST (pH=4) (a) and BST (pH=2.4) (b)

参考文献 18

[1]	PIERRE LE-CLECH, CHEN VICKI, FANE TONY A G. Fouling in membrane bioreactors used in wastewater treatment.J. Membrane. Sci., 2006, 284(1/2): 17-53.
[2]	ZÜMRIYE AKSU. Biosorption of reactive dyes by dried activated sludge: equilibrium and kinetic modeling.Biochem. Eng. J., 2001, 7(1): 79-84.
[3]	ELISABETH NEYENS, JAN BAEYENS, RAF DEWIL, et al.Advanced sludge treatment affects extracellular polymeric substances to improve activated sludge dewatering.J. Hazard. Mater., 2004, 106(2/3): 83-92.
[4]	ROBERTO ANDREOZZI, VINCENZO CAPRIO, AMEDEO INSOLA, et al.Advanced oxidation processes (AOP) for water purification and recovery.Catalysis Today, 1999, 53(1): 51-59.
[5]	BIAN ZHEN-FENG, TAKASHI TACHIKAWA, ZHANG PENG, et al.Au/TiO2 superstructure-based plasmonic photocatalysts exhibiting efficient charge separation and unprecedented activity.J. Am. Chem. Soc., 2014, 136(1): 458-465.
[6]	NEYENS E, BAEYENS J.A review of classic Fenton’s peroxidation as an advanced oxidation technique.J. Hazard. Mater., 2003, 98(1/2/3): 33-50.
[7]	YANG XIAO-FEI, CUI HAI-YING, LI YANG, et al.Fabrication of Ag3PO4‑graphene composites with highly efficient and stable visible light photocatalytic performance.ACS Catal., 2013, 3(3): 363-369.
[8]	MATT STOCK, STEVE DUNN.Influence of the ferroelectric nature of lithium niobate to drive photocatalytic dye decolorization under artificial solar light.J. Phys. Chem. C, 2012, 116(39): 20854-20859.
[9]	WANG JIANG-YING, YAO XI, ZHANG LIANG-YING.Preparation and dielectric properties of barium strontium titanate glass- ceramics sintered from Sol-Gel-derived powders.Ceram. Int., 2004, 30(7): 1749-1752.
[10]	JANG H M, JUN Y H.(Ba, Sr)TiO3 system under dc-bias field. II: Induced and intrinsic pyroelectric coefficients and figures-of-merit.Ferroelectrics, 1997, 193(1): 125-140.
[11]	LIU JUN-LIANG, ZHANG WEI, GUO CUIJING, et al.Synthesis and magnetic properties of quasi-single domain M-type barium hexaferrite powders via Sol-Gel auto-combustion: effects of pH and the ratio of citric acid to metal ions (CA/M).J. Alloys Compd., 2009, 479(1/2): 863-869.
[12]	YU JIA-GUO, SU YAO-RONG, CHENG BEI, et al.Effects of pH on the microstructures and photocatalytic activity of mesoporous nanocrystalline titania powders prepared via hydrothermal method.J. Mol. Catal. A-Chem., 2006, 258(1/2): 104-112.
[13]	BIAN ZHEN-FENG, TAKASHI TACHIKAWA, TETSURO MAJIMA.Superstructure of TiO2 crystalline nanoparticles yields effective conduction pathways for photogenerated charges.J. Phys. Chem. Lett., 2012, 3(11): 1422-1427.
[14]	BIAN ZHEN-FENG, TAKASHI TACHIKAWA, KIM WOOYUL, et al.Superior electron transport and photocatalytic abilities of metal nanoparticle- loaded TiO2 superstructures.J. Phys. Chem. C, 2012, 116(48): 25444-25453.
[15]	LAKSHMINARASIMHAN N, KIM W, CHOI W.Effect of the agglomerated state on the photocatalytic hydrogen production with in situ agglomeration of colloidal TiO2 nanoparticles.J. Phys. Chem. C, 2008, 112(51): 20451-20457.
[16]	ISMAIL A A, BAHNEMANN D W.Mesostructured Pt/TiO2 nanocomposites as highly active photocatalysts for the photooxidation of dichloroacetic acid.J. Phys. Chem. C, 2011, 115(13): 5784-5791.
[17]	GONZALEZ-VAZQUEZ J P, MORALES-FLÓ REZ V, ANTA J A. How important is working with an ordered electrode to improve the charge collection efficiency in nanostructured solar cells?J. Phys. Chem. Lett., 2012, 3(3): 386-393.
[18]	KUDO A, TSUJI I, KATO H.AgInZn7S9 solid solution photocatalyst for H2 evolution from aqueous solutions under visible light irradiation.Chem. Commun., 2002, 17: 1958-1959.

纳米网状结构钛酸锶钡的制备及其催化性能研究

Fabrication of Barium Strontium Titanate Nanophotocatalysts with Gridding Structures and Their Photocatalytic Activities

RichHTML

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

图/表 7

参考文献 18

相关文章 15

编辑推荐

Metrics

本文评价

[1]	马彬彬, 钟婉菱, 韩涧, 陈椋煜, 孙婧婧, 雷彩霞. ZIF-8/TiO₂复合介观晶体的制备及光催化活性[J]. 无机材料学报, 2024, 39(8): 937-944.
[2]	曹青青, 陈翔宇, 吴健豪, 王筱卓, 王乙炫, 王禹涵, 李春颜, 茹菲, 李兰, 陈智. SiO₂增强自敏性氮化碳微球可见光降解盐酸四环素的研究[J]. 无机材料学报, 2024, 39(7): 787-792.
[3]	王兆阳, 秦鹏, 蒋胤, 冯小波, 杨培志, 黄富强. 三明治结构钌插层二氧化钛光催化四环素降解性能研究[J]. 无机材料学报, 2024, 39(4): 383-389.
[4]	叶茂森, 王耀, 许冰, 王康康, 张胜楠, 冯建情. II/Z型Bi₂MoO₆/Ag₂O/Bi₂O₃异质结可见光催化降解四环素[J]. 无机材料学报, 2024, 39(3): 321-329.
[5]	李秋实, 殷广明, 吕伟超, 王怀尧, 李婧琳, 杨红光, 关芳芳. Na⁺/g-C₃N₄材料的制备及光催化降解亚甲基蓝机理[J]. 无机材料学报, 2024, 39(10): 1143-1150.
[6]	戴乐, 刘洋, 高轩, 王书豪, 宋雅婷, 唐明猛, 刘丽莎, 汪尧进. 浓度梯度掺杂实现BiFeO₃薄膜自极化[J]. 无机材料学报, 2024, 39(1): 99-106.
[7]	李跃军, 曹铁平, 孙大伟. S型异质结Bi₄O₅Br₂/CeO₂的制备及其光催化CO₂还原性能[J]. 无机材料学报, 2023, 38(8): 963-970.
[8]	伍林, 胡明蕾, 王丽萍, 黄少萌, 周湘远. TiHAP@g-C₃N₄异质结的制备及光催化降解甲基橙[J]. 无机材料学报, 2023, 38(5): 503-510.
[9]	凌洁, 周安宁, 王文珍, 贾忻宇, 马梦丹. Cu/Mg比对Cu/Mg-MOF-74的CO₂吸附性能的影响[J]. 无机材料学报, 2023, 38(12): 1379-1386.
[10]	孙晨, 赵昆峰, 易志国. 甲烷完全催化氧化研究进展[J]. 无机材料学报, 2023, 38(11): 1245-1256.
[11]	贾玉娜, 曹旭, 焦秀玲, 陈代荣. 无机酸铝体系氧化铝连续纤维的制备技术研究[J]. 无机材料学报, 2023, 38(11): 1257-1264.
[12]	贾鑫, 李晋宇, 丁世豪, 申倩倩, 贾虎生, 薛晋波. Pd纳米颗粒协同氧空位增强TiO₂光催化CO₂还原性能[J]. 无机材料学报, 2023, 38(11): 1301-1308.
[13]	马润东, 郭雄, 施凯旋, 安胜利, 王瑞芬, 郭瑞华. MoS₂/g-C₃N₄ S型异质结的构建及光催化性能研究[J]. 无机材料学报, 2023, 38(10): 1176-1182.
[14]	马心全, 李喜宝, 陈智, 冯志军, 黄军同. S型异质结BiOBr/ZnMoO₄的构建及光催化降解性能研究[J]. 无机材料学报, 2023, 38(1): 62-70.
[15]	陈瀚翔, 周敏, 莫曌, 宜坚坚, 李华明, 许晖. CoN/g-C₃N₄ 0D/2D复合结构及其光催化制氢性能研究[J]. 无机材料学报, 2022, 37(9): 1001-1008.