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Magnetic Calcium Silicate Heavy Metal Ion Adsorbents for Photocatalytic CO2 Reduction
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Qiuyun LI, Yapeng CHEN, Linnan CHEN, Feifei CHEN, Yan YU
Journal of the Chinese Ceramic Society | 2021, 49(10) : 2045 - 2052
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Journal of the Chinese Ceramic Society | 2021, 49(10): 2045-2052
Magnetic Calcium Silicate Heavy Metal Ion Adsorbents for Photocatalytic CO2 Reduction
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Qiuyun LI, Yapeng CHEN, Linnan CHEN, Feifei CHEN, Yan YU
Affiliations
  • Key Laboratory of Advanced Materials Technologies, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China

    • LI Qiuyun (1999-), female, Bachelor candidate. E-mail:

About Author:

LI Qiuyun (1999-), female, Bachelor candidate. E-mail:

Published: 2021-10-20 doi: 10.14062/j.issn.0454-5648.20210264
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Fe3O4@calcium silicate hydrate (CSH) nanosheets composite adsorbents were obtained through electrostatic interaction. And an "adsorbent-to-photocatalyst" transformation strategy was proposed: the harmful heavy metal ions from the polluted water were removed by Fe3O4@CSH adsorbents, after which they were recycled and reused as photocatalysts for CO2 reduction. The results demonstrated that: benefiting from ultrahigh surface area and strong ion exchange ability of CSH nanosheets, heavy metal ions including Zn2+, Cu2+, Co2+, Ni2+, and Pb2+ could be efficiently removed by Fe3O4@CSH adsorbents. The maximal adsorption capacities were 83, 142, 150, 179, 343 mg/g, respectively. Fe3O4@CSH adsorbents containing heavy metal ions could efficiently reduce CO2 to CO under visible light. Particularly, Fe3O4@CSH-Ni after adsorption of Ni2+ showed the best catalytic activity. The CO generation rate was up to 3 310 μmol/(g·h) with a high selectivity of 99.3%. Besides, the magnetic property of Fe3O4 enabled the rapid recovery of Fe3O4@CSH during the adsorption and photocatalysis processes.

ferroferric oxide  /  calcium silicate hydrate  /  heavy metal ions  /  adsorbents  /  photocatalysis  /  carbon dioxide reduction
李秋芸, 陈雅鹏, 陈林楠, 陈飞飞, 于岩. 磁性硅酸钙重金属离子吸附剂用于光催化还原CO2. 硅酸盐学报, 2021 , 49 (10) : 2045 -2052 . DOI: 10.14062/j.issn.0454-5648.20210264
Qiuyun LI, Yapeng CHEN, Linnan CHEN, Feifei CHEN, Yan YU. Magnetic Calcium Silicate Heavy Metal Ion Adsorbents for Photocatalytic CO2 Reduction[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (10) : 2045 -2052 . DOI: 10.14062/j.issn.0454-5648.20210264
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Year 2021 volume 49 Issue 10
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Article Info
doi: 10.14062/j.issn.0454-5648.20210264
  • Receive Date：2021-04-13
  • Online Date：2026-10-30
  • Published：2021-10-20
Article Data
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History
  • Received：2021-04-13
  • Revised：2021-05-18
Funding
Affiliations
    Key Laboratory of Advanced Materials Technologies, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China

Corresponding:

CHEN Feifei (1991-), male, Ph. D, Lecture; E-mail:
YU Yan (1972-), female, Ph. D, Professor.
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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