Design of a One-Dimensional Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> Composite Material and Its Photocathodic Protection Mechanism Against Corrosion
Z-scheme Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> nanocomposites were prepared by electrospinning and hydrothermal methods, and their photocathodic protection performance was studied on 304 SS and Q235 CS in N...
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2025-03-01
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| author | Xiaotong Wang Yuehua Chen Xiaoying Zhang |
| author_facet | Xiaotong Wang Yuehua Chen Xiaoying Zhang |
| author_sort | Xiaotong Wang |
| collection | DOAJ |
| description | Z-scheme Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> nanocomposites were prepared by electrospinning and hydrothermal methods, and their photocathodic protection performance was studied on 304 SS and Q235 CS in NaCl solution (3.5 wt.%). The two-dimensional Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub> loaded on the one-dimensional NiFe<sub>2</sub>O<sub>4</sub> resulted in faster electron migration and enhanced light absorption capability. Moreover, it had been observed through electrochemical testing that the assembly of Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> heterojunctions improves the efficacy of photocathodic protection. Following illumination, the self-corrosion potentials of 304 SS and Q235 CS coupled with Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> nanocomposites decreased by 1040 mV and 560 mV, and the photoinduced current densities were 1.2 times and 3.9 times greater than the value of Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>. Furthermore, the mechanism of enhanced photocathodic protection performance for Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> heterojunctions was systematically discussed. XPS and ESR analysis indicated that Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> composites follow the Z-scheme electron migration path and retain the stronger reduction and oxidation capacity of Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub>. Therefore, the Z-scheme heterostructures are responsible for the realization of cathodic protection for carbon steel. |
| format | Article |
| id | doaj-art-574525c2d23c463ab3d847059b9d4aab |
| institution | OA Journals |
| issn | 2075-5309 |
| language | English |
| publishDate | 2025-03-01 |
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| spelling | doaj-art-574525c2d23c463ab3d847059b9d4aab2025-08-20T02:11:12ZengMDPI AGBuildings2075-53092025-03-0115695810.3390/buildings15060958Design of a One-Dimensional Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> Composite Material and Its Photocathodic Protection Mechanism Against CorrosionXiaotong Wang0Yuehua Chen1Xiaoying Zhang2College of Civil Engineering, Qingdao University of Technology, Qingdao 266520, ChinaCollege of Civil Engineering, Qingdao University of Technology, Qingdao 266520, ChinaCollege of Civil Engineering, Qingdao University of Technology, Qingdao 266520, ChinaZ-scheme Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> nanocomposites were prepared by electrospinning and hydrothermal methods, and their photocathodic protection performance was studied on 304 SS and Q235 CS in NaCl solution (3.5 wt.%). The two-dimensional Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub> loaded on the one-dimensional NiFe<sub>2</sub>O<sub>4</sub> resulted in faster electron migration and enhanced light absorption capability. Moreover, it had been observed through electrochemical testing that the assembly of Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> heterojunctions improves the efficacy of photocathodic protection. Following illumination, the self-corrosion potentials of 304 SS and Q235 CS coupled with Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> nanocomposites decreased by 1040 mV and 560 mV, and the photoinduced current densities were 1.2 times and 3.9 times greater than the value of Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>. Furthermore, the mechanism of enhanced photocathodic protection performance for Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> heterojunctions was systematically discussed. XPS and ESR analysis indicated that Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> composites follow the Z-scheme electron migration path and retain the stronger reduction and oxidation capacity of Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub>. Therefore, the Z-scheme heterostructures are responsible for the realization of cathodic protection for carbon steel.https://www.mdpi.com/2075-5309/15/6/958Z-scheme heterojunctionphotocathodic protectionNiFe<sub>2</sub>O<sub>4</sub>corrosionelectrospinningQ235 CS |
| spellingShingle | Xiaotong Wang Yuehua Chen Xiaoying Zhang Design of a One-Dimensional Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> Composite Material and Its Photocathodic Protection Mechanism Against Corrosion Buildings Z-scheme heterojunction photocathodic protection NiFe<sub>2</sub>O<sub>4</sub> corrosion electrospinning Q235 CS |
| title | Design of a One-Dimensional Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> Composite Material and Its Photocathodic Protection Mechanism Against Corrosion |
| title_full | Design of a One-Dimensional Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> Composite Material and Its Photocathodic Protection Mechanism Against Corrosion |
| title_fullStr | Design of a One-Dimensional Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> Composite Material and Its Photocathodic Protection Mechanism Against Corrosion |
| title_full_unstemmed | Design of a One-Dimensional Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> Composite Material and Its Photocathodic Protection Mechanism Against Corrosion |
| title_short | Design of a One-Dimensional Zn<sub>3</sub>In<sub>2</sub>S<sub>6</sub>/NiFe<sub>2</sub>O<sub>4</sub> Composite Material and Its Photocathodic Protection Mechanism Against Corrosion |
| title_sort | design of a one dimensional zn sub 3 sub in sub 2 sub s sub 6 sub nife sub 2 sub o sub 4 sub composite material and its photocathodic protection mechanism against corrosion |
| topic | Z-scheme heterojunction photocathodic protection NiFe<sub>2</sub>O<sub>4</sub> corrosion electrospinning Q235 CS |
| url | https://www.mdpi.com/2075-5309/15/6/958 |
| work_keys_str_mv | AT xiaotongwang designofaonedimensionalznsub3subinsub2subssub6subnifesub2subosub4subcompositematerialanditsphotocathodicprotectionmechanismagainstcorrosion AT yuehuachen designofaonedimensionalznsub3subinsub2subssub6subnifesub2subosub4subcompositematerialanditsphotocathodicprotectionmechanismagainstcorrosion AT xiaoyingzhang designofaonedimensionalznsub3subinsub2subssub6subnifesub2subosub4subcompositematerialanditsphotocathodicprotectionmechanismagainstcorrosion |