Fabrication of a Nanosize Hematite Pigment via Waste Ferrous Sulfate Recycling Using Sulfur Reduction

Journal article (2022)

Authors

Ye Wang Sichuan University
Genkuan Ren Yibin University
Wenhui Ma Kunming University of Science and Technology
Bing Jiang Sichuan University
Lin Yang Sichuan University
Zhiye Zhang Sichuan University
Xinlong Wang Sichuan University
Yanjun Zhong Sichuan University
Z. Chen (OLD) MSE-3
Xiushan Yang Sichuan University
Kazuki Morita University of Tokyo
Research Group
(OLD) MSE-3
Copyright: © 2022 Ye Wang, Genkuan Ren, Bing Jiang, Lin Yang, Zhiye Zhang, Xinlong Wang, Yanjun Zhong, Z. Chen, Xiushan Yang, Kazuki Morita, Wenhui Ma
DOI
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https://doi.org/10.1007/s11663-022-02584-5
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Published Date

2022

Language

English

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Research Group

(OLD) MSE-3

Abstract

Nanometer-sized hematite was prepared via a two-step process. In the first step, FeSO4·7H2O was oxidized to Fe2(SO4)3 by oxygen in an acidic solution. In the second step, the Fe2(SO4)3 was reduced to nanosize hematite with sulfur vapor at 550 °C. The hematite has good thermal stability up to 500 °C and good colloid stability in water-based paint. Its properties satisfy the requirements of the international standard ISO 1248-A-I-1-a for an iron oxide red pigment. Graphical abstract: [Figure not available: see fulltext.]