Photocatalytic and Electrochemical Activity of Magnesium Oxide Nanoballs Synthesized via a Hydrothermal Route

被引：6
|
作者：
Sagadevan, Suresh [1 ]
Lett, J. Anita [2 ]
Fatimah, Is [3 ]
Selvi, K. Tamizh [4 ]
Sivasankaran, Ramesh Poonchi [5 ]
Weldegebrieal, Getu Kassegn [6 ]
Oh, Won-Chun [7 ]
机构：
[1] Univ Malaya, Nanotechnol & Catalysis Res Ctr, Kuala Lumpur 50603, Malaysia
[2] Sathyabama Inst Sci & Technol, Dept Phys, Chennai 600119, Tamil Nadu, India
[3] Univ Islam Indonesia, Fac Math & Nat Sci, Dept Chem, Kampus Terpadu UII,Jl Kaliurang Km 14, Sleman 55584, Yogyakarta, Indonesia
[4] Vel Tech High Tech Rangarajan Sakunthala Engn Col, Dept Phys, Chennai 600062, Tamil Nadu, India
[5] Korea Inst Energy Technol KENTECH, Environm & Climate Technol, 200 Hyeoksin Ro, Naju 34129, South Korea
[6] Debre Berhan Univ, Coll Nat & Computat Sci, Dept Chem, POB 445, Debre Berhan, Ethiopia
[7] Hanseo Univ, Dept Adv Mat Sci & Engn, Seosan 31962, South Korea
来源：
PROCESSES | 2022年 / 10卷 / 10期
关键词：
MgO nanostructures; hydrothermal synthesis; optical properties; electrochemical property; and photocatalytic activity; MGO NANOPARTICLES; ORGANIC POLLUTANTS; ANTIBACTERIAL; FABRICATION; DYE;
D O I：
10.3390/pr10102098
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Currently, there is growing concern about minimizing the environmental impacts caused by the generation of waste on water, soil, air pollution, and contamination of the environment in general. Magnesium oxide (MgO) nanoballs (NBs) were synthesized by the hydrothermal method followed by a calcination process. The average size of particles dispersed in deionized water was 159.2 +/- 70 nm. The energy band gap was calculated to be 5.14 eV. The magnetic behavior, cyclic voltammetry, and electrochemical impedance of MgO NBs were studied. Under visible-light irradiation, the photocatalytic activity of MgO nanoballs was investigated by methylene blue (MB) dye. Results showed that photodegradation for MB under visible light irradiation for 120 min and degradation results are fitted well with pseudo-first-order reaction kinetics with a rate constant of 0.00252 min(-1) and a correlation coefficient of 0.96.
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页数：14
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