Photocatalytic reduction of 4-nitrophenol using effective hole scavenger over novel Mg-doped Zn(O,S) nanoparticles

被引：51

作者：

Bekena, Fekadu Tadesse ^{[1
]}

Abdullah, Hairus ^{[1
]}

Kuo, Dong-Hau ^{[1
]}

Zeleke, Misganaw Alemu ^{[1
]}

机构：

[1] Natl Taiwan Univ Sci & Technol, Dept Mat Sci & Engn, 43,Sec 4,Keelung Rd, Taipei 10607, Taiwan

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2019年 / 78卷

关键词：

Photocatalyst; Hole scavenger; Mg-Zn(OS); Reduction; 4-Nitrophenol; 4-Aminophenol; ONE-POT SYNTHESIS; ZNO NANOPARTICLES; CATALYTIC-ACTIVITY; METHYLENE-BLUE; TIO2; NANOCOMPOSITE; DEGRADATION; PERFORMANCE; FACILE; DYE;

D O I：

10.1016/j.jiec.2019.06.029

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Novel Mg-doped Zn(O,S) nanoparticles were synthesized by a chemical precipitation process at 90 degrees C and the prepared nanoparticles were characterized by XRD, SEM, HRTEM, XPS, UV-vis, DRS, PL, EIS, and photocurrent response. The photocatalytic reduction for the 4-nitrophenol using Na2SO3 under UV light irradiation showed that Mg-Zn(O,S)-2.5 exhibited higher activity compared with other samples. 96.7% of 4-nitrophenolate ion reduced into 4-aminophenol within 45 min. Mg-Zn(O,S)-2.5 was also tested for hydrogen evolution, where the rates of 1035 mu mol/g for the 4-NP-free sample and 705 mu mol/g for the 4-NP-added one were achieved. Finally, the stability and reaction mechanism was mentioned. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：116 / 124

页数：9

共 42 条

[1] Utilization of photocatalytic hydrogen evolved (Zn,Sn)(O,S) nanoparticles to reduce 4-nitrophenol to 4-aminophenol [J].