Enhanced visible light photocatalytic efficiency of La-doped ZnO nanofibers via electrospinning-calcination technology

Shaoju Jian; Zhiwei Tian; Jiapeng Hu; Kaiyin Zhang; Lin Zhang; Gaigai Duan; Weisen Yang; Shaohua Jiang

Advanced Powder Materials (Apr 2022)

Enhanced visible light photocatalytic efficiency of La-doped ZnO nanofibers via electrospinning-calcination technology

Shaoju Jian,
Zhiwei Tian,
Jiapeng Hu,
Kaiyin Zhang,
Lin Zhang,
Gaigai Duan,
Weisen Yang,
Shaohua Jiang

Affiliations

Shaoju Jian: Fujian Key Laboratory of Eco-Industrial Green Technology, College of Ecology and Resources Engineering, Wuyi University, Wuyishan, 354300, China
Zhiwei Tian: Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
Jiapeng Hu: Fujian Key Laboratory of Eco-Industrial Green Technology, College of Ecology and Resources Engineering, Wuyi University, Wuyishan, 354300, China
Kaiyin Zhang: College of Mechanical and Electrical Engineering, Wuyi University, Wuyishan, 354300, China
Lin Zhang: Media Lab, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
Gaigai Duan: Fujian Key Laboratory of Eco-Industrial Green Technology, College of Ecology and Resources Engineering, Wuyi University, Wuyishan, 354300, China; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China; Corresponding author. Fujian Key Laboratory of Eco-Industrial Green Technology, College of Ecology and Resources Engineering, Wuyi University, Wuyishan, 354300, China.
Weisen Yang: Fujian Key Laboratory of Eco-Industrial Green Technology, College of Ecology and Resources Engineering, Wuyi University, Wuyishan, 354300, China; Corresponding author.
Shaohua Jiang: Fujian Key Laboratory of Eco-Industrial Green Technology, College of Ecology and Resources Engineering, Wuyi University, Wuyishan, 354300, China; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China; Corresponding author. Fujian Key Laboratory of Eco-Industrial Green Technology, College of Ecology and Resources Engineering, Wuyi University, Wuyishan, 354300, China.

Journal volume & issue: Vol. 1, no. 2
p. 100004

Abstract

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A series of La-doped ZnO (La/ZnO) nanofibers were prepared by electrospinning-calcination technology and characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), ultraviolet–visible (UV–Vis) absorption spectroscopy and specific surface area analysis. The effect of numerous operational parameters involving calcination temperature, La doping amount, La-doped ZnO concentration and initial Rhodamine B (Rh B) concentration on photocatalytic efficiency of the composite has been analyzed by using Rh B for degradation under the illumination of visible light. Under optimum conditions, ZnO doped with 1.5 at.% La achieved 94.31% Rh B degradation after 510 min of visible light illumination. The kinetic data of La/ZnO catalyst for Rh B photodegradation fitted the Langmuir-Hinshelwood first-order (LHFO) kinetic model well.

Published in Advanced Powder Materials

ISSN: 2772-834X (Online)
Publisher: KeAi Communications Co. Ltd.
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.keaipublishing.com/en/journals/advanced-powder-materials/

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