Microstrcture Characterization and Properties of TiO2/α-FeOOH Nanocomposites

doi:10.3724/SP.J.1077.2013.12194

Abstract

Abstract:

A series of TiO₂/α-FeOOH nanocomposites were prepared by hydrolysis precipitation method at different temperatures using TiCl₄ as Ti source and α-FeOOH as support. The phase composition, morphology, microstructure and optical properties of the samples were investigated by XRD, HRTEM, STEM and UV-DRS. The results show that with the temperature gradually increasing from 30℃ to 90℃, the core-shell structure first gets better and then worse, and the best core-shell structure is formed at 45℃. The shell is composed of fine grains of rutile TiO₂ and the large grain of α-FeOOH serves as the core, and the nanocomposites coated continuous and dense. The interaction between TiO₂ and α-FeOOH is not only physical adsorption, a coherent lattice structure is formed at the interface between TiO₂ and α-FeOOH, which leads to a large lattice distortion and a good composite structure. UV-DRS results show that the largest red shift of absorption peak is observed for the composite with good core-shell structure, indicating that the TiO₂/α-FeOOH nanocomposites can greatly expand the range of spectral response and thus improve the utilization of sunlight.

Key words: rutile, goethite, nanocomposite, microstructure

CLC Number:

O649

WANG Yan-Fei, WANG Wei, ZHENG Yi-Fan, LI Guo-Hua. Microstrcture Characterization and Properties of TiO₂/α-FeOOH Nanocomposites[J]. Journal of Inorganic Materials, 2013, 28(2): 177-183.

Figures/Tables 6

References 20

[1]	Legrini O, Oliveros E, Braun A M, et al. Photochemical processes for water treatment. Chem. Rev., 1993, 93(2): 671-698.
[2]	Li X P, Xu B K. The Research and development of photocatalytic degradation of organic contaminant over nanosized TiO2 in water. Journal of Functional Materials, 1999, 30(3): 242-245.
[3]	Masakazu A, Masato T. The design and development of highly reactive titaniumoxide photocatalysts operating under visible light irradiation. J. Catal., 2003, 216(2): 505-516.
[4]	Bao S J, Zhang X G, Liu X M, et al. Preparation and photocatalytic activity of TiO2/SiO2/Fe3O4. Chinese Journal of Applied Chemistry, 2004, 21(3): 261-264.
[5]	Liu C, Bao N Z, Yang Z H, et al. Photocatalytic performance of TiO2 modified by doped transition metal Ions. Chinese Journal of Catalysis, 2001, 22(2): 215-218.
[6]	Li X Y, Wang J Y, Wang X Y, et al. Preparation of magnetic Fe2O3-TiO2 nanocomposite and its photocatalytic activity under visible light irradiation. Chem. J. Chinese Universities, 2001, 31(4): 662-666.
[7]	Bonamali P, Maheshwar S, Gyoichi N. Preparation and characterization of TiO2/Fe2O3 binary mixed oxides and its photocatalytic properties. Materials Chemistry and Physics, 1999, 59(4): 254-261.
[8]	Feng L R, Lu S J, Qiu F L. Influence of transition elements dopant on the
	photocatalytic activities of nanometer TiO2.Acta Chimica Sinica, 2002, 60(3): 463-467.
[9]	Zhu J F, Chen F, Zhang J L, et al. Fe3+-TiO2 photocatalysts prepared by combining Sol-Gel method with hydrothermal treatment and their characterization. Journal of Photochemistry and Photobiology A: Chemistry, 2006, 180(1/2): 196-204.
[10]	Li L, Chuan X Y, Lu X C, et al. Photocatalytic degradation of phenol by natural rutile under UV and sunlight irradiation. Acta Petrologica Et Mineralogical, 2010, 29(5): 569-576.
[11]	Wang R, Hashimoto K, Fujishima A, et al. Photogeneration of highly amphiphilic
	TiO2 surfaces.Advanced Materials, 1998, 10(2): 135-138.
[12]	Lettmann C, Hildenbrand K, Kisch H, et al.Visiblelight photodegradation of 4-chlorophenol with a cokecontaining titanium dioxide photocatalyst. Applied Catalysis B: Environmental, 2001, 32(4): 215-227.
[13]	Yan M C, Chen F, Zhang J, et al. Preparation of controllable crystalline titania and study on the photocatalytic propertie. Journal of Physical Chemistry B, 2005, 109(3): 8673-8678.
[14]	Sclafani A, Palmisano L, Schiavello M. Influence of the preparation methods of titanium dioxide on the photocatalytic degradation of phenol in aqueousdispersion. J. Phys. Chem., 1990, 94(2): 829-832.
[15]	Andrew M, Richard H D, David W. Water purification by semiconductor. Chemical Society Reviews, 1993, 11(2): 417-426.
[16]	Park S D, Cho Y H, Kim W W, et al. Understanding of homogeneous spontaneous precipitation for monodispersed TiO2 ultrafine powders with rutile phase around room temperature. J. Solid State Chem., 1999, 146(2): 230-238.
[17]	Li G H, Zheng Y F, Ma C A, et al. Preparation of nanoanatase and its in situ XRD study. Transactions of Nonferrous Metals Society of China, 2008, 18(2): 469-475.
[18]	Nam H D, Lee B H, Kim S J, et al. Preparation of ultrafine crystalline TiO2 powders from aqueous TiCl4 solution by precipitation. Japanese Journal of Applied Physics, 1998, 37(8): 4603-4608.
[19]	Chen X Y, Liu S X, Chen X, et al. Charaterization and activity of TiO2/wAC composite photocatalyst prepared by acid catalyzed hydrolysis method. Acta Phys. Chim. Sin., 2006, 22(5): 517-522.
[20]	Zhang X, Zhang F, Chan K Y. Synthesis of titania-silica mixed oxide mesoporous materials, characterization and photocatalytic properties. Applied Catalysis A: General, 2005, 284(1/2): 193-198.

Samples	Refinement parameters		Goethite						Rutile
			Cell parameters/nm			D/nm (110)	Microstrain (110)	wt%	Cell parameters/nm		D/nm (110)	Microstrain (110)	wt%
			a	b	c	D/nm (110)	Microstrain (110)	wt%	a=b	c	D/nm (110)	Microstrain (110)	wt%
30℃	Sig	1.52	0.46109	0.99652	0.30225	85.8	5.6350×10^-6	95.70	_	_	_	_	4.30
30℃	Rw%	4.98	0.46109	0.99652	0.30225	85.8	5.6350×10^-6	95.70	_	_	_	_	4.30
45℃	Sig	1.37	0.46118	0.99601	0.30229	80.8	6.5158×10^-4	57.68	0.46132	0.29768	3.56	0.0218	42.32
45℃	Rw%	5.29	0.46118	0.99601	0.30229	80.8	6.5158×10^-4	57.68	0.46132	0.29768	3.56	0.0218	42.32
60℃	Sig	1.34	0.46034	0.99628	0.30237	76.4	4.8678×10^-4	54.68	0.46247	0.29824	2.61	0.0164	45.32
60℃	Rw%	5.33	0.46034	0.99628	0.30237	76.4	4.8678×10^-4	54.68	0.46247	0.29824	2.61	0.0164	45.32
75℃	Sig	1.57	_	_	_	_	_	0.58	0.46129	0.29643	5.19	0.0106	99.42
75℃	Rw%	7.89	_	_	_	_	_	0.58	0.46129	0.29643	5.19	0.0106	99.42
90℃	Sig	1.54	_	_	_	_	_	1.08	0.46154	0.29653	5.37	0.0093	98.92
90℃	Rw%	7.66	_	_	_	_	_	1.08	0.46154	0.29653	5.37	0.0093	98.92

Samples	Refinement parameters		Goethite						Rutile
			Cell parameters/nm			D/nm (110)	Microstrain (110)	wt%	Cell parameters/nm		D/nm (110)	Microstrain (110)	wt%
			a	b	c	D/nm (110)	Microstrain (110)	wt%	a=b	c	D/nm (110)	Microstrain (110)	wt%
30℃	Sig	1.52	0.46109	0.99652	0.30225	85.8	5.6350×10^-6	95.70	_	_	_	_	4.30
30℃	Rw%	4.98	0.46109	0.99652	0.30225	85.8	5.6350×10^-6	95.70	_	_	_	_	4.30
45℃	Sig	1.37	0.46118	0.99601	0.30229	80.8	6.5158×10^-4	57.68	0.46132	0.29768	3.56	0.0218	42.32
45℃	Rw%	5.29	0.46118	0.99601	0.30229	80.8	6.5158×10^-4	57.68	0.46132	0.29768	3.56	0.0218	42.32
60℃	Sig	1.34	0.46034	0.99628	0.30237	76.4	4.8678×10^-4	54.68	0.46247	0.29824	2.61	0.0164	45.32
60℃	Rw%	5.33	0.46034	0.99628	0.30237	76.4	4.8678×10^-4	54.68	0.46247	0.29824	2.61	0.0164	45.32
75℃	Sig	1.57	_	_	_	_	_	0.58	0.46129	0.29643	5.19	0.0106	99.42
75℃	Rw%	7.89	_	_	_	_	_	0.58	0.46129	0.29643	5.19	0.0106	99.42
90℃	Sig	1.54	_	_	_	_	_	1.08	0.46154	0.29653	5.37	0.0093	98.92
90℃	Rw%	7.66	_	_	_	_	_	1.08	0.46154	0.29653	5.37	0.0093	98.92

Microstrcture Characterization and Properties of TiO₂/α-FeOOH Nanocomposites

RichHTML

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

Figures/Tables 6

References 20

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	HE Danqi, WEI Mingxu, LIU Ruizhi, TANG Zhixin, ZHAI Pengcheng, ZHAO Wenyu. Heavy-Fermion YbAl₃ Materials: One-step Synthesis and Enhanced Thermoelectric Performance [J]. Journal of Inorganic Materials, 2023, 38(5): 577-582.
[2]	WU Shuang, GOU Yanzi, WANG Yongshou, SONG Quzhi, ZHANG Qingyu, WANG Yingde. Effect of Heat Treatment on Composition, Microstructure and Mechanical Property of Domestic KD-SA SiC Fibers [J]. Journal of Inorganic Materials, 2023, 38(5): 569-576.
[3]	ZHANG Ye, ZENG Yuping. Progress of Porous Silicon Nitride Ceramics Prepared via Self-propagating High Temperature Synthesis [J]. Journal of Inorganic Materials, 2022, 37(8): 853-864.
[4]	XIA Qian, SUN Shihao, ZHAO Yiliang, ZHANG Cuiping, RU Hongqiang, WANG Wei, YUE Xinyan. Effect of Boron Carbide Particle Size Distribution on the Microstructure and Properties of Reaction Bonded Boron Carbide Ceramic Composites by Silicon Infiltration [J]. Journal of Inorganic Materials, 2022, 37(6): 636-642.
[5]	HONG Du, NIU Yaran, LI Hong, ZHONG Xin, ZHENG Xuebin. Tribological Properties of Plasma Sprayed TiC-Graphite Composite Coatings [J]. Journal of Inorganic Materials, 2022, 37(6): 643-650.
[6]	XU Puhao, ZHANG Xiangzhao, LIU Guiwu, ZHANG Mingfen, GUI Xinyi, QIAO Guanjun. Microstructure and Mechanical Properties of SiC Joint Brazed by Al-Ti Alloys as Filler Metal [J]. Journal of Inorganic Materials, 2022, 37(6): 683-690.
[7]	HUANG Longzhi, YIN Jie, CHEN Xiao, WANG Xinguang, LIU Xuejian, HUANG Zhengren. Selective Laser Sintering of SiC Green Body with Low Binder Content [J]. Journal of Inorganic Materials, 2022, 37(3): 347-352.
[8]	WU Xishi, ZHU Yunzhou, HUANG Qing, HUANG Zhengren. Effect of Pore Structure of Organic Resin-based Porous Carbon on Joining Properties of C_f/SiC Composites [J]. Journal of Inorganic Materials, 2022, 37(12): 1275-1280.
[9]	SUN Luchao, ZHOU Cui, DU Tiefeng, WU Zhen, LEI Yiming, LI Jialin, SU Haijun, WANG Jingyang. Directionally Solidified Al₂O₃/Er₃Al₅O₁₂ and Al₂O₃/Yb₃Al₅O₁₂ Eutectic Ceramics Prepared by Optical Floating Zone Melting [J]. Journal of Inorganic Materials, 2021, 36(6): 652-658.
[10]	XIAO Xiang, GUO Shaoke, DING Cheng, ZHANG Zhijie, HUANG Hairui, XU Jiayue. CsPbBr₃@TiO₂ Core-shell Structure Nanocomposite as Water Stable and Efficient Visible-light-driven Photocatalyst [J]. Journal of Inorganic Materials, 2021, 36(5): 507-512.
[11]	XIONG Jinyan, LUO Qiang, ZHAO Kai, ZHANG Mengmeng, HAN Chao, CHENG Gang. Facilely Anchoring Cu nanoparticles on WO₃ Nanocubes for Enhanced Photocatalysis through Efficient Interface Charge Transfer [J]. Journal of Inorganic Materials, 2021, 36(3): 325-331.
[12]	HUANG Xinyou, LIU Yumin, LIU Yang, LI Xiaoying, FENG Yagang, CHEN Xiaopu, CHEN Penghui, LIU Xin, XIE Tengfei, LI Jiang. Fabrication and Characterizations of Yb:YAG Transparent Ceramics Using Alcohol-water Co-precipitation Method [J]. Journal of Inorganic Materials, 2021, 36(2): 217-224.
[13]	ZHANG Junmin, CHEN Xiaowu, LIAO Chunjin, GUO Feiyu, YANG Jinshan, ZHANG Xiangyu, DONG Shaoming. Optimizing Microstructure and Properties of SiC_f/SiC Composites Prepared by Reactive Melt Infiltration [J]. Journal of Inorganic Materials, 2021, 36(10): 1103-1110.
[14]	ZHU Danyang, QIAN Kang, CHEN Xiaopu, HU Zewang, LIU Xin, LI Xiaoying, PAN Yubai, MIHÓKOVÁ Eva, NIKL Martin, LI Jiang. Fine-grained Ce,Y:SrHfO₃ Scintillation Ceramics Fabricated by Hot Isostatic Pressing [J]. Journal of Inorganic Materials, 2021, 36(10): 1118-1124.
[15]	CHEN Lei,WANG Kai,SU Wentao,ZHANG Wen,XU Chenguang,WANG Yujin,ZHOU Yu. Research Progress of Transition Metal Non-oxide High-entropy Ceramics [J]. Journal of Inorganic Materials, 2020, 35(7): 748-758.