SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2024, Vol. 65 ›› Issue (1): 1-7.DOI: 10.1016/j.cjche.2023.08.002

• Full Length Article •    下一篇

Flower-like tin oxide membranes with robust three-dimensional channels for efficient removal of iron ions from hydrogen peroxide

Risheng Shen1, Shilong Li1, Yuqing Sun1, Yuan Bai2, Jian Lu1, Wenheng Jing1   

  1. 1 State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, China;
    2 National Energy Group Science and Technology Research Institute Co., Ltd., Nanjing 210023, China
  • 收稿日期:2023-04-03 修回日期:2023-08-15 出版日期:2024-01-28 发布日期:2024-04-17
  • 通讯作者: Wenheng Jing,E-mail:jingwh@njtech.edu.cn
  • 基金资助:
    We sincerely appreciate the support from the National Key Research and Development Program (2021YFB3801303), the National Natural Science Foundation of China (21838005, 21921006), the State Key Laboratory of Materials-Oriented Chemical Engineering (SKL-MCE-22A03), and the Key Research and Development Program of Jiangsu Provincial Department of Science and Technology (BE2022033-3).

Flower-like tin oxide membranes with robust three-dimensional channels for efficient removal of iron ions from hydrogen peroxide

Risheng Shen1, Shilong Li1, Yuqing Sun1, Yuan Bai2, Jian Lu1, Wenheng Jing1   

  1. 1 State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, China;
    2 National Energy Group Science and Technology Research Institute Co., Ltd., Nanjing 210023, China
  • Received:2023-04-03 Revised:2023-08-15 Online:2024-01-28 Published:2024-04-17
  • Contact: Wenheng Jing,E-mail:jingwh@njtech.edu.cn
  • Supported by:
    We sincerely appreciate the support from the National Key Research and Development Program (2021YFB3801303), the National Natural Science Foundation of China (21838005, 21921006), the State Key Laboratory of Materials-Oriented Chemical Engineering (SKL-MCE-22A03), and the Key Research and Development Program of Jiangsu Provincial Department of Science and Technology (BE2022033-3).

摘要: Membrane technology has become the mainstream process for the production of electronic grade hydrogen peroxide (H2O2). But due to the oxidation degradation of the organic membranes (e.g. polyamide) by the strong oxidative radicals (e.g.·OH) generated via the activation of H2O2 by iron ions (Fe3+), the short effective lifetime of membranes remains a challenge. Inorganic nano tin oxide (SnO2) has great potential for the removal of Fe3+ in strongly oxidative H2O2 because of its ability to stabilize H2O2 and preferentially adsorb Fe3+. Herein, we have designed for the first time a flower-like robust SnO2 membrane on the ceramic support by in situ template-free one-step hydrothermal method. The three-dimensional loose pore structure in the membrane built by interlacing SnO2 nanosheets endows the SnO2 membrane with a high specific surface area and abundant adsorption sites (—OH). Based on the coordination complexation and electrostatic attraction between the SnO2 surface and Fe3+, the membrane shows a high Fe3+ removal efficiency (83%) and permeability (24 L·m-2·h-1·MPa-1) in H2O2. This study provides an innovative and simple approach to designing robust SnO2 membranes for highly efficient removal of Fe3+ in harsh environments, such as strong oxidation conditions.

关键词: Hydrogen peroxide, SnO2 membrane, Adsorption, Hydrothermal

Abstract: Membrane technology has become the mainstream process for the production of electronic grade hydrogen peroxide (H2O2). But due to the oxidation degradation of the organic membranes (e.g. polyamide) by the strong oxidative radicals (e.g.·OH) generated via the activation of H2O2 by iron ions (Fe3+), the short effective lifetime of membranes remains a challenge. Inorganic nano tin oxide (SnO2) has great potential for the removal of Fe3+ in strongly oxidative H2O2 because of its ability to stabilize H2O2 and preferentially adsorb Fe3+. Herein, we have designed for the first time a flower-like robust SnO2 membrane on the ceramic support by in situ template-free one-step hydrothermal method. The three-dimensional loose pore structure in the membrane built by interlacing SnO2 nanosheets endows the SnO2 membrane with a high specific surface area and abundant adsorption sites (—OH). Based on the coordination complexation and electrostatic attraction between the SnO2 surface and Fe3+, the membrane shows a high Fe3+ removal efficiency (83%) and permeability (24 L·m-2·h-1·MPa-1) in H2O2. This study provides an innovative and simple approach to designing robust SnO2 membranes for highly efficient removal of Fe3+ in harsh environments, such as strong oxidation conditions.

Key words: Hydrogen peroxide, SnO2 membrane, Adsorption, Hydrothermal