GaN/ZnO复合体的制备及光催化性能

doi:10.15541/jim20130617

无机材料学报 ›› 2014, Vol. 29 ›› Issue (9): 956-960.DOI: 10.15541/jim20130617 CSTR: 32189.14.10.15541/jim20130617

GaN/ZnO复合体的制备及光催化性能

彭丹¹, 郑学军¹, 谢澍梵², 罗晓菊², 王丁²

(1. 湘潭大学材料与光电物理学院, 湘潭 411105; 2. 上海理工大学材料科学与工程院, 上海 200093)

收稿日期:2013-11-26 修回日期:2014-03-09 出版日期:2014-09-17 网络出版日期:2014-08-21
作者简介:彭丹(1989–), 男, 硕士研究生. E-mail: 815805413@qq.com
基金资助:
教育部长江学者和创新团队发展计划(IRT1080);国家自然科学基金 (51272158);长江学者奖励计划([2009]17);上海市纳米专项基金(11nm0502600)

Fabrication and Photocatalytic Performance of GaN/ZnO Composites

PENG Dan¹, ZHENG Xue-Jun¹, XIE Shu-Fan², LUO Xiao-Ju², WANG Ding²

(1. School of Materials and Optoelectronic Physics, Xiangtan University, Xiangtan 411105, China; 2. School of Materials Science and Engineering, University of Shanghai for Science & Technology, Shanghai 200093, China)

Received:2013-11-26 Revised:2014-03-09 Published:2014-09-17 Online:2014-08-21
About author:PENG Dan. E-mail: 815805413@qq.com
Supported by:
Program for Changjiang Scholars and Innovative Research Team (IRT1080);National Natural Science Foundation of China (51272158);Changjiang Scholar Incentive Program ([2009]17);Shanghai Nano Special Foundation (11nm0502600)

摘要/Abstract

摘要：

首先用聚乙烯吡咯烷酮(PVP)作为表面活性剂, 硝酸镓[Ga(NO₃)₃]作为镓源, 采用溶胶-凝胶法制备了GaN粉末。然后通过固相法将GaN粉末和ZnO粉末按不同配比机械混合, 制备成GaN/ZnO复合体。采用X射线粉末衍射(XRD)、扫描电镜(SEM)、X射线能谱 (EDS)、高分辨透射电子显微镜(HRTEM)和发致光谱(PL)表征GaN/ZnO复合体的微结构、形貌、成分和发光特性, 并将其作为催化剂进行降解亚甲基蓝水溶液的光催化性能测试。结果表明: GaN/ZnO复合体对比未经复合的GaN和ZnO粉末, 光催化性能有明显的增强。基于一级动力学方程分析, 当GaN/ZnO复合体中GaN粉末和ZnO粉末含量配比为1: 2时, 光催化性能达到最佳, 其速率常数k值为0.11 min^-1。

关键词: GaN/ZnO复合体, 光催化, 亚甲基蓝, 反应动力学

Abstract:

GaN powder was firstly synthesized by the Sol-Gel method using polyvinylpyrrolidone (PVP) and gallium nitrate [Ga(NO₃)₃] as surfactant and gallium source, respectively. Then, GaN/ZnO composites were prepared by solid phase method through mechanical mixing GaN powder and ZnO powder with different proportions. The composites were characterized by using X-Ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive spectrometer (EDS), high-resolution X-ray electron microscope (HRTEM) and photoluminescence (PL) spectra. The photocatalytic performance of GaN/ZnO composites as catalyst was tested by degradation of methylene blue in aqueous solution under white light irradiation. The results show that the photocatalytic property of GaN/ZnO composites is obviously improved comparing with that of pure GaN and ZnO powders. The photocatalytic activity is analyzed by pseudo-first-order kinetics equation, showing that the best photodegradation rate constant k is 0.11 min^-1 for the GaN/ZnO composites with GaN and ZnO mixing ratio of 1: 2.

Key words: GaN/ZnO composites, photocatalysis, methylene blue, reaction kinetics

中图分类号:

O643

彭丹, 郑学军, 谢澍梵, 罗晓菊, 王丁. GaN/ZnO复合体的制备及光催化性能[J]. 无机材料学报, 2014, 29(9): 956-960.

PENG Dan, ZHENG Xue-Jun, XIE Shu-Fan, LUO Xiao-Ju, WANG Ding. Fabrication and Photocatalytic Performance of GaN/ZnO Composites[J]. Journal of Inorganic Materials, 2014, 29(9): 956-960.

图/表 6

图1 GaN/ZnO复合体的XRD图谱

Fig. 1 XRD patterns of GaN/ZnO composites

图2 GaN/ZnO复合体的SEM照片以及配比为1: 1的GaN/ZnO复合体的EDS能谱图

Fig. 2 SEM images of GaN/ZnO composites with different ratios and EDS images of GaN/ZnO composites with ratio of 1: 1 (a) GaN; (b) GaN: ZnO=4: 1; (c) GaN: ZnO=1: 1; (d) GaN: ZnO=1: 2; (e) GaN: ZnO=1: 4; (f) ZnO; (g) EDS of hollow cross fork; (h) EDS of solid cross fork

图3 GaN/ZnO复合体的TEM(a)和HRTEM(b)图片

Fig. 3 TEM (a) and HRTEM (b) images of GaN/ZnO composites

图4 GaN/ZnO复合体的PL光谱图

Fig. 4 PL spectra of GaN/ZnO compositesInset is the PL spectra of GaN powder

图5 GaN/ZnO复合体对应的亚甲基蓝水溶液在不同时间间隔的吸收光谱

Fig. 5 Absorption spectra of the methylene blue solution at different time intervals with GaN/ZnO composites (a) GaN; (b) GaN: ZnO=4: 1; (c) GaN: ZnO=1: 1; (d) GaN: ZnO=1: 2; (e) GaN: ZnO=1: 4; (f) ZnO

图6 GaN/ZnO复合体降解亚甲基蓝的降解率随降解时间变化曲线和ln(C0/C)与降解时间关系曲线

Fig. 6 Methylene blue solution degradation efficiency with irradiation time (a) and relationship between ln(C0/C) and irradiation time (b) with GaN/ZnO composites

参考文献 22

[1]	FUJISHIMA A, HONDA K. Electrochemical photolysis of water at a semiconductor electrode. Nature, 1972, 238: 37-38.
[2]	KEMPA T J, CAHOON J F, KIM S K, et al. Coaxial multishell nanowires with high-quality electronic interfaces and tunable optical cavities for ultrathin photovoltaics. Proceedings of the National Academy of Sciences, 2012, 109(5): 1407-1412.
[3]	HOCHBAUM A I, CHEN R, DELGADO R D, et al. Enhanced thermoelectric performance of rough silicon nanowires. Nature, 2008, 451(10): 163-167.
[4]	HU Y F, ZHANG Y, XU C, et al. High-output nanogenerator by rational unipolar assembly of conical nanowires and its application for driving a small liquid crystal display. Nano Letters, 2010, 10(12): 5025-5031.
[5]	LI Z, WANG Z L. Air/liquid-pressure and heartbeat-driven flexible fiber nanogenerators as a micro/nano-power source or diagnostic sensor. Advanced Materials, 2011, 23(1): 84-89.
[6]	JUNG H S, HONG Y J, LI Y, et al. Photocatalysis using GaN nanowires. ACS Nano, 2008, 2(4): 637-642.
[7]	KIDA T, MINAMI Y, GUAN G, et al. Photocatalytic activity of gallium nitride for producing hydrogen from water under light irradiation. Journal of Materials Science, 2006, 41(11): 3527-3534.
[8]	CAO T P, LI Y J, WANG C H. Preparation and photocatalytic property of NiO/ZnO heterostructured nanofibers. Journal of Inorganic Materials, 2013, 28(3): 295-300.
[9]	ZHOU W Q, LU Y M, CHEN C Z, et al.Effect of Li-doped TiO2 compact layers for dye sensitized solar cells. Journal of Inorganic Materials, 2011, 26(8): 819-822.
[10]	CAO T P, LI Y J, SHAO C L, et al. Fabrication, structure, and enhanced photocatalytic properties of hierarchical CeO2 nanostruc-tures/TiO2 nanofibers heterostructures. Materials Research Bulletin, 2010, 45(10): 1406-1412.
[11]	YU C L, YANG K, YU J C, et al. Hydrothermal synthesis and photocatalytic performance of Bi2WO6/ZnO heterojunction photoca-ta-lysts. Journal of Inorganic Materials, 2011, 26(11): 1157-1163.
[12]	LIU S X,LIU H. Basic and Application of Photocatalytic and Photoelectrocatalytic. Beijing: Chemical Industry Press, 2006.
[13]	MAEDA K, TAKATA T, HARA M, et al. GaN: ZnO solid solution as a photocatalyst for visible-light-driven overall water splitting. Journal of the American Chemical Society, 2005, 127(23): 8286-8287.
[14]	ZHU Z F, WANG Y, LI J Q, et al. The synthesis of 3D Bi2WO6/TiO, heterojunction photocatalysts and enhanced photocatalytic activity. Journal of Functional Materials, 2013, 44(16): 2324-2328.
[15]	DENG Q, LI M, CAI Q, et al. Preparation of rare earth/titanium dioxide catalysts and photocatalytic elimination of gaseous pollutant. Journal of the Chinese Society of Rare Earths, 2011, 29(2): 170-177.
[16]	JING L Q, ZHENG Y G, XU Z L, et al. Electronic paramagnetic resonance characteristics of ZnO ultrafine particlesand their photocatalytic performance. Chemical Journal of Chinese Unive-rsities, 2001, 22(11): 1885-1888.
[17]	XIE S F, LIU Y Y, CHEN Z L, et al. Superior photocatalytic properties of phosphorous-doped ZnO nanocombs. RSC Advances, 2013, 3(48): 26080-26085.
[18]	QIAN P P, XUE J L, FAN G X, et al. Photocatalytic degradation properties of methylene blue over ZnAl layered double hydroxides. Chinese Journal of Inorganic Chemistry, 2012, 28(7): 1348-1352.
[19]	NAGESWARA R A, SIVASANKAR B, SADASIVAM V. Kinetic study on the photocatalytic degradation of salicylic acid using ZnO catalyst. Journal of Hazardous Materials, 2009, 166(2): 1357-1361.
[20]	MOHAMED R M, BAEISSA E S, MKHALID I A, et al. Optimization of preparation conditions of ZnO-SiO2 xerogel by Sol-Gel technique for photodegradation of methylene blue dye. Applied Nanoscience, 2013, 3(1): 57-63.
[21]	YAN J H, ZHANG L, ZHU Y R, et al. Preparation and photocatalytic hydrogen production of NiO(CoO)/N-SrTiO3 heteroj-un-ction complex catalyst under simulated sunlight irradiation. Journal of Inorganic Materials, 2009, 24(4): 666-670.
[22]	WANG X, XU Q, LI M, et al. Photocatalytic overall water splitting promoted by an α-β phase junction on Ga2O3. Angewandte Chemie International Edition, 2012, 51(52): 13089-13092.

GaN/ZnO复合体的制备及光催化性能

Fabrication and Photocatalytic Performance of GaN/ZnO Composites

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