Nanostructured ZnO photocatalysts prepared via surfactant assisted Co-Precipitation method achieving enhanced photocatalytic activity for the degradation of methylene blue dyes

被引：86

作者：

El-Shazly, A. N. ^{[1
]}

Rashad, M. M. ^{[1
]}

Abdel-Aal, E. A. ^{[1
]}

Ibrahim, I. A. ^{[1
]}

El-Shahat, M. F. ^{[2
]}

Shalan, Ahmed E. ^{[1
,3
]}

机构：

[1] Cent Met Res & Dev Inst, POB 87, Cairo, Egypt

[2] Ain Shams Univ, Fac Sci, Dept Chem, Cairo, Egypt

[3] Hokkaido Univ, Res Inst Elect Sci, Kita Ku, N21,W10, Sapporo, Hokkaido 0010021, Japan

来源：

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2016年 / 4卷 / 03期

关键词：

ZnO nanopowder; Synthesis; Co-precipitation method; Surfactant; Photocatalytic degradation;

D O I：

10.1016/j.jece.2016.06.018

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Zinc oxide nanopowders with different particle sizes have been successfully synthesized via co-precipitation method. Typically, X-ray diffraction (XRD) studies revealed that well crystalline single phase of ZnO nanopowders were formed with addition of surfactants (CTAB, AOT or PEG). SEM and TEM images of the formed ZnO nanopowders exhibited spherical structure either without or with addition of CTAB or PEG. Otherwise, the addition of AOT exhibited flower-like structure. UV-vis and PL spectrums privileged that the smaller the particle size led to the large band gap energy as well as the large the surface oxygen vacancies content. Consequently, the strongest the PL signal and the highest the photocatalytic activity were distinguished. Accordingly, The obtained ZnO nanopowders in the presence of CTAB as the cationic surfactant were the most effective in degrading the MB dye under ultraviolet (UV) light. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：3177 / 3184

页数：8

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