Synthesis of yttrium and cerium doped ZnO nanoparticles as highly inexpensive and stable photocatalysts for hydrogen evolution

被引：52

作者：

Ahmad, Irshad ^{[1
]}

Akhtar, Muhammad Shoaib ^{[2
]}

Manzoor, Mian Faisal ^{[1
]}

Wajid, Muhammad ^{[1
]}

Noman, Muhammad ^{[3
]}

Ahmed, Ejaz ^{[1
]}

Ahmad, Mukhtar ^{[1
]}

Khan, Waheed Qamar ^{[4
]}

Rana, Anwar M. ^{[1
]}

机构：

[1] Bahauddin Zakariya Univ, Dept Phys, Multan 60800, Pakistan

[2] Lanzhou Univ Technol, Sch Comp & Commun, Lanzhou 730050, Peoples R China

[3] Univ Agr Faisalabad, Dept Phys, Faisalabad 38040, Pakistan

[4] Bahauddin Zakariya Univ, Inst Adv Mat, Multan 6800, Pakistan

来源：

JOURNAL OF RARE EARTHS | 2021年 / 39卷 / 04期

关键词：

ZnO; H-2; evolution; Na2SO3; PL; Stability; Rare earths;

D O I：

10.1016/j.jre.2020.04.002

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Yttrium and cerium co-doped ZnO nanoparticles were synthesized by combustion route and characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET), energy dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), UV-visible diffuse reflectance spectroscopy (UV-vis DRS), photoluminescence (PL) and electrochemical impedance spectroscopy (EIS) techniques. The introduction of yttrium ions has efficiently increased the relative percentage of Ce3+ ions in ZnO. Yttrium and cerium co-doped ZnO shows efficient photo activity for hydrogen evolution (10.61 mmol/((g.h)) higher than previously reported optimal value for rare earth co doped ZnO photocatalysts. This remarkably increased hydrogen evolution can be ascribed to the synergy between electronic anchoring effect of Y3+/Y2+ and Ce4+/Ce3+ redox couples. This report presents new idea for the synthesis of efficient photocatalyst using economical route and ion anchoring effect. The hydrogen evolution was also tested using Na2S and Na2SO3 as electron donors under visible light illumination. The synthesized photocatalysts also exhibit high stability. (C) 2020 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved.

引用

页码：440 / 445

页数：6

共 26 条

[11] Excitation-induced tunable luminescence of luminomagnetic Dy and Ce co-doped ZnO nanoparticles [J].