Simple sonochemical synthesis of HO2O3-SiO2 nanocomposites as an effective photocatalyst for degradation and removal of organic contaminant

被引：67

作者：

Zinatloo-Ajabshir, Sahar ^{[1
]}

Mortazavi-Derazkola, Sobhan ^{[2
]}

Salavati-Niasari, Masoud ^{[2
]}

机构：

[1] Islamic Azad Univ, South Tehran Branch, Young Researchers & Elites Club, Tehran, Iran

[2] Univ Kashan, Inst Nano Sci & Nano Technol, POB 87317-51167, Kashan, Iran

来源：

ULTRASONICS SONOCHEMISTRY | 2017年 / 39卷

基金：

美国国家科学基金会;

关键词：

Nanostructures; SiO2; Holmium oxide; Ultrasonic irradiation; Photocatalyst; Electron microscopy; DY2CE2O7; NANOSTRUCTURES; FACILE SYNTHESIS; SIMPLE ROUTE; SPECTROSCOPY; TIO2; ZRO2;

D O I：

10.1016/j.ultsonch.2017.05.016

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In this work, highly photocatalytically active HO2O3-SiO2 nanocomposites have been designed and applied for decomposition of methylene blue pollutant. HO2O3-SiO2 nanocomposites have been produced by new, quick and facile sonochemical process with the aid of tetramethylethylenediamine as a novel basic agent for the first time. The effect of the kind of basic agent, ultrasonic time and dosage of Ho source on the grain size, photocatalytic behavior and shape of the HO2O3-SiO2 nanocomposites have been evaluated for optimization the production condition. FESEM, EDX, FT-IR, DRS, XRD and TEM have been applied to characterize the as-produced HO2O3-SiO2 nanocomposites. Use of the as-produced HO2O3-SiO2 nanocomposites as photocatalyst via destruction of methylene blue pollutant under UV illumination has been compared. It was observed that SiO2 has notable impact on catalytic activity of holmium oxide photocatalyst for destruction. Introducing of SiO2 to holmium oxide can enhance destruction efficiency of holmium oxide to methylene blue pollutant under ultraviolet light.

引用

页码：452 / 460

页数：9

共 35 条

[1] Structural features of nanocrystalline holmium oxide prepared by the thermal decomposition of organic precursors
Abdusalyamova, M. N.
Makhmudov, F. A.
Shairmardanov, E. N.
Kovalev, I. D.
Fursikov, P. V.
Khodos, I. I.
Shulga, Y. M.
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 601 : 31 - 37
[2] Photocatalysis of SiO2-loaded TiO2
Arai, Y
Tanaka, K
Khlaifat, AL
[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2006, 243 (01) : 85 - 88
[3] Simple morphology-controlled fabrication of nickel chromite nanostructures via a novel route
Beshkar, Farshad
Zinatloo-Ajabshir, Sahar
Salavati-Niasari, Masoud
[J]. CHEMICAL ENGINEERING JOURNAL, 2015, 279 : 605 - 614
[4] Brady G., 2002, MAT HDB, V15th
[5] IR and UV spectral studies for rare earths-doped tellurite glasses
El-Deen, L. M. Sharaf
Al Salhi, M. S.
Elkholy, Meawad M.
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 465 (1-2) : 333 - 339
[6] Eyring K. G. L., 1965, GORDON AND BREACH, P153
[7] Glushkova V. B., 1965, B ACAD SCI USSR CH, V14, P1101
[8] Preparation of SiO2-Coated TiO2 Composite Materials with Enhanced Photocatalytic Activity Under UV Light
Hu, Shaozheng
Li, Fayun
Fan, Zhiping
[J]. BULLETIN OF THE KOREAN CHEMICAL SOCIETY, 2012, 33 (06) : 1895 - 1899
[9] Order-disorder transitions and evolution of silica structure in self-assembled mesostructured silica films studied through FTIR spectroscopy
Innocenzi, P
Falcaro, P
Grosso, D
Babonneau, F
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (20) : 4711 - 4717
[10] Surface acid-base properties of holmium oxide catalyst: in situ infrared spectroscopy
Mekhemer, GAH
[J]. APPLIED CATALYSIS A-GENERAL, 2004, 275 (1-2) : 1 - 7

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