Preparation, Characterization and Influential Parameters of ZnO Nanoparticles Synthesized by Precipitation Method

Abstract

Abstract: ZnO nanoparticles were synthesized by a precipitation method with Zn(NO₃)₂·6H₂O as the starting material
and Na₂CO₃ as the precipitant. When the concentration of the reactants reduced from 2.0 to 0.5mol·L^-1, the particle size hardly changed but the agglomeration was weaker. TG-DSC curves of the precursor show that
the precursor decomposes at about 253℃. XRD pattern of the powder indicates that the hexagonal wurtzite ZnO nanocrystals can be obtained when
the precursor calcinated at 300℃ for 2h. TEM micrographs show that the ZnO nanoparticles are well dispersed and the average particle size
is 15～20nm. The specific surface area of the obtained powder is 64.12m²·g^-1. There is no obvious difference whether to wash the precipitate by distilled water or ammonia
before to wash by ethanol.

Key words: ZnO nanoparticles, wurtzite, precipitation

CLC Number:

TB383

WANG Jin-Min,GAO Lian. Preparation, Characterization and Influential Parameters of ZnO Nanoparticles Synthesized by Precipitation Method[J]. Journal of Inorganic Materials.

References

[1] Pal B, Sharon M. Mater. Chem. Phys., 2002, 76 (1): 82--87.
[2] Valenzuela M A, Bosch P, Jiménez-Becerrill J, et al. J. Photochem. Photobio. A: Chemistry. 2002, 148: 177--182.
[3] Sakthivel S, Geissen S-U, Bahnemann D W, et al. J. Photochem. Photobio. A: Chemistry. 2002, 148: 283--293.
[4] Bol A A, Beek R V, Meijerink A, et al. Chem. Mater., 2002, 14 (3): 1121--1126.
[5] Lakshmi B B, Dorhout P K, Martin C R. Chem. Mater., 1997, 9 (3): 857--862.
[6] Kang X Y, Wang T D, Han Y, et al. Mater. Res. Bull., 1997, 32 (9): 1165--1171.
[7] 刘超峰, 胡行方, 祖庸(LIU Chao-Feng, et al). 无机材料学报 (Journal of Inorganic Materials), 1999, 14 (3): 392--396.
[8] Li W J, Shi E W, Zheng Y Q, et al. J. Mater. Sci. Lett., 2001, 20 (15): 1381--1383.
[9] Lim B P, Wang J, Ng S C, et al. Ceram. Int., 1998, (24): 205--209.
[10] Zhao X Y, Zheng B C, Li C Z, et al. Powder Technol., 1998, 100 (1): 20--23.
[11] Dong L F, Cui Z L, Zhang Z K. Nanostruct. Mater., 1997, 8 (7): 815--823.
[12] 沈茹娟, 贾殿赠, 乔永民, 等 (SHEN Ru-Juan, et al). 无机材料学报 (Journal of Inorganic Materials), 2001, 16 (4): 625--629.
[13] Rodriguez-Paze J E, Caballero A C, Villegas M, et al. J. Eur. Ceram. Soc., 2001, 21 (7): 925--930.
[14] 易求实, 吴新明, 潭志诚(YI Qiu-Shi, et al). 无机材料学报 (Journal of Inorganic Materials), 2001, 16 (4): 835--839.
[15] 靳建华, 白炳贤, 白涛, 等. 无机盐工业, 2000, 32 (6): 7--8.
[16] 顾庆超. 新编化学用表, 第一版. 南京: 江苏教育出版社, 1998. 86.
[17] 栾伟玲, 高濂, 郭景坤(LUAN Wei-Ling, et al). 无机材料学报 (Journal of Inorganic Materials), 1997, 12 (6): 835--839.
[18] 相宏伟, 钟炳, 彭少逸, 等(XIANG Hong-Wei, et al). 物?理化学学报 (Acta. Phys. Chim. Sin.), 1995, 11 (1): 46--51.
[19] 李强, 高濂, 栾伟玲, 等(LI Qiang, et al). 无机材料学报 (Journal of Inorganic Materials), 1999, 14 (5): 813--817.