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第 12 期 刘 剑,等: YBO 3 微米球的水热合成及光催化性能 ·2497·
XPS 结果分析可知,YBO 3 微米球纳米片表面存在 Nano, 2008, 2(7): 1487-1491.
[6] Becker P. Borate materials in nonlinear optics[J]. Advanced
氧空位,能捕获光生电子进而促进光生载流子的分 Materials, 1998, 10(13): 979-992.
[7] Yu N, Wang S, Ye N, et al. A deep-ultraviolet nonlinear optical
离;更重要的是,纳米片的形成不仅增强了 YBO 3 crystal: Strontium beryllium borate fluoride with planar Be(O/F) 3
微米球对光的吸收能力,更增加了材料的比表面积, groups[J]. Chemistry of Materials, 2016, 28: 4563-4571.
[8] Bashir B, Zhang B, Lei B, et al. DFT based theoretical study about
从而为光催化反应提供更多可利用的表面活性位点。 the contributions of fluorine to nonlinear optical properties in borate
fluoride[J]. Crystal Growth & Design, 2016, 16: 5067-5073.
因此,YBO 3 (8.5)微米球表现出较好的光催化性能。 [9] Jia Q, Miseki Y, Saito K, et al. InBO 3 photocatalyst with calcite
structure for overall water splitting[J]. Bulletin of the Chemical
Society of Japan, 2010, 83(10): 1275-1281.
[10] Yuan J, Wu Q, Zhang P, et al. Synthesis of indium borate and its
application in photodegradation of 4-chlorophenol[J]. Environmental
Science & Technology, 2012, 46(4): 2330-2336.
[11] Huang H, He Y, Lin Z, et al. Two Novel Bi-based borate
photocatalysts: Crystal structure, electronic structure, photoelectrochemical
properties, and photocatalytic activity under simulated solar light
irradiation[J]. Journal of Physical Chemistry C, 2013, 117: 22986-
22994.
[12] Zhang R, Dai Y, Lou Z, et al. Layered photocatalyst Bi 2O 2[BO 2(OH)]
nanosheets with internal polar field enhanced photocatalytic activity
[J]. Cryst Eng Comm, 2014, 16: 4931-4934.
[13] Fan X, Zang L, Zhang M, et al. A bulk boron-based photocatalyst for
efficient dechlorination: K 3B 6O 10Br[J]. Chemistry of Materials, 2014,
26: 3169-3174.
[14] Liu J, Zhao W, Wang B, et al. Bi 2ZnOB 2O 6: A polar material capable
of photocatalytic degradation of Rhodamine B[J]. Journal of
图 11 YBO 3 光催化剂催化机理 Materials Science: Materials in Electronics, 2018, 29: 13803-13809.
10
Fig. 11 Schematic illustration of YBO 3 photocatalyst [15] Fan X, Liu J, Lai K, et al. K 3MB 5O 10 (M = Zn and Cd) with d
configuration: Efficient and reusable catalysts for dehalogenation of
halophenols[J]. Applied Catalysis B: Environmental, 2017, 206: 599-
3 结论 607.
[16] Reshak A. A novel photocatalytic water splitting solar-to-hydrogen
energy conversion: Non-centro-symmetric borate CsZn 2B 3O 7 photocatalyst
本文采用水热法制备了 3 种 YBO 3 粉体并对其 [J]. Journal of Alloys and Compounds, 2018, 741: 1258-1268.
XRD、SEM、XPS、光催化性能及电化学性能等进 [17] Vitzthum D, Schauperl M, Strabler C, et al. New high-pressure
gallium borate Ga 2B 3O 7(OH) with photocatalytic activity[J]. Inorganic
行了研究。结果表明,在 pH=8.5 的条件下成功合成 Chemistry, 2015, 55(2): 676-681.
[18] Matsumoto Y, Ueda K, Tomita K, et al. Luminescence properties of
3+
了由暴露(100)晶面的纳米片自组装成的 YBO 3(8.5)微 Eu doped YBO 3 for temperature sensing[J]. Journal of the Ceramic
Society of Japan, 2009, 117(1371): 1191-1194.
米球。相比于 YBO 3 (8.0)和 YBO 3 (9.0)粉体颗粒, [19] Zhao L, Cao Z, Wei X, et al. Luminescence properties of Eu doped
3+
YBO 3 (8.5)微米球在紫外光区域具有更强的吸收,并 YBO 3 for temperature sensing[J]. Journal of Rare Earths, 2017,
35(4): 356-360.
且其吸收边发生了明显的红移,增大了对光的响应 [20] Nair R, Nigam S, Sudarsan V, et al. YBO 3 versus Y 3BO 6 host on Tb
3+
luminescence[J]. Journal of Luminescence, 2018, 195: 271-277.
范围,有利于光生载流子的产生。通过 XPS 和电化 [21] He X, Yang H. A novel strategy to the synthesis of Na 3YSi 2O 7 from
natural palygorskite[J]. Applied Clay Science, 2014, 101: 339-344.
学性能测试分析,YBO 3 (8.5) 表面存在的氧空位, [22] Yao W, Zheng X, Guo Y, et al. Role of chlorohydrocarbon in
能捕获光生电子进而促进光生载流子的分离,降低 increasing selectivity of propylene oxide over Ag-Y 2O 3-K 2O/α-Al 2O 3
catalyst for epoxidation of propylene by molecular oxygen[J].
了光生电子-空穴的复合率。此外,纳米片的形成不 Journal of Molecular Catalysis A, 2011, 342/343: 30-34.
[23] Ilieva L, Venezia A, Petrova P, et al. Effect of Y modified ceria
仅增加了材料的比表面积,更为光催化反应提供更 support in mono and bimetallic Pd–Au catalysts for complete
多可利用的表面活性位点。因此,YBO 3 (8.5)微米球 benzene oxidation[J]. Catalysts, 2018, 8(7): 283.
[24] Wang J, Chen W, Wang M. Properties analysis of Mn-doped ZnO
表现出较好的光催化性能,40 min 对罗丹明 B 的降 piezoelectric films[J]. Journal of Alloys and Compounds, 2008,
449(1/2): 44-47.
解率达到 90.9%。YBO 3 光催化剂的制备及研究不仅 [25] Yang G, Wang L, Zhao Y, et al. One-dimensional Mg xTi yO x+2y
拓宽了其应用范围,更为硼酸盐光催化材料的探索 nanostructures: General synthesis and enhanced photocatalytic
performance[J]. Applied Catalysis B: Environmental, 2018, 225:
研究提供了实验基础和技术支持。 332-339.
[26] Zhu G, Que W, Zhang J, et al. Photocatalytic activity of SnWO 4 and
SnW 3O 9 nanostructures prepared by a surfactant-assisted hydrothermal
参考文献: process[J]. Materials Science and Engineering: B, 2011, 176(18):
[1] Fujishima A, Honda K. Electrochemical photolysis of water at a 1448-1455.
semiconductor electrode[J]. Nature, 1972, 238: 37-38. [27] Shang M, Wang W, Zhang L. Preparation of BiOBr lamellar structure
[2] Chen X, Shen S, Guo L, et al. Semiconductor-based photocatalytic with high photocatalytic activity by CTAB as Br source and template
hydrogen generation[J]. Chemical Reviews, 2010, 110: 6503-6570. [J]. Journal of Hazardous Materials, 2009, 167(1/2/3): 803-809.
[3] Zhang Zhuanfang (张转芳), Tang Lin (唐林), Sun Li (孙立), et al. [28] Zhang L, Wang W, Zhou L, et al. Bi 2WO 6 nano-and microstructures:
Hydro-thermal synthesis CuS/GO nanocomposite for photocatalytic Shape control and associated visible-light-driven photocatalytic
degradation/catalytic reduction of organic pollutants[J]. Fine activities[J]. Small, 2007, 3(9): 1618-1625.
Chemicals (精细化工), 2019, 36(2): 237-242. [29] Liu Chong (刘翀), Liu Lilai (刘丽来), Nie Jiahui (聂佳慧). Synthesis
[4] Huang Y, Gao Y, Zhang Q, et al. Biocompatible FeOOH-carbon of carbon ball modified g-C 3N 4 for improved photocatalytic
quantum dots nanocomposites for gaseous NO x removal under visible activity[J]. Chemical Journal of Chinese Universities (高等学校化学
light: Improved charge separation and high selectivity[J]. Journal of 学报), 2018, 39(7): 1511-1517.
Hazardous Materials, 2018, 354: 54-62. [30] Tan C, Zhu G, Hojamberdiev M, et al. Adsorption and enhanced
[5] Graeme W, Brian S, Prashant V K. TiO 2-graphene nanocomposites photocatalytic activity of the {0001} faceted Sm-doped ZnIn 2S 4
UV-assisted photocatalytic reduction of graphene oxide[J]. ACS microspheres[J]. Journal of Hazardous Materials, 2014, 278: 572-583.