Light-induced in situ reconstruction of CoOOH-modified TiO<sub>2</sub>/CoNi-LDH heterojunction photoanode: achieving excellent photoelectrochemical cathodic protection and bacterial inactivation

Meiqi Wang; Yiqing Tang; Juan Liu; Xinyue Feng; Zheng Kuang; Yingnan Qin; Jing Tian; Ning Wang; Jing Wang

doi:10.1038/s41377-026-02328-z

Your Location：

Home >

Browse articles >

Light-induced in situ reconstruction of CoOOH-modified TiO₂/CoNi-LDH heterojunction photoanode: achieving excellent photoelectrochemical cathodic protection and bacterial inactivation

Original Articles

- Light-induced in situ reconstruction of CoOOH-modified TiO₂/CoNi-LDH heterojunction photoanode: achieving excellent photoelectrochemical cathodic protection and bacterial inactivation
- Light-induced in situ reconstruction of CoOOH-modified TiO₂/CoNi-LDH heterojunction photoanode: achieving excellent photoelectrochemical cathodic protection and bacterial inactivation
- Light: Science & Applications 2026年15卷第8期页码：2598-2610
- Affiliations：
  
  1.College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
  2.State Key Laboratory of Advanced Optical Polymer and Manufacturing Technology, Qingdao University of Science and Technology, Qingdao, China
- Author bio：
  
  Jing Tian (tianjing@qust.edu.cn)
  Ning Wang (04031@qust.edu.cn)
  Jing Wang (wangjing04032@qust.edu.cn)
- Funds：
- DOI：10.1038/s41377-026-02328-z
  中图分类号：
- 收稿：2025-12-23，
  
  修回：2026-03-28，
  
  录用：2026-04-20，
  
  网络首发：2026-05-11，
  
  纸质出版：2026-08-31
- Accepted：
Scan QR Code
Meiqi Wang, Yiqing Tang, Juan Liu, 等. Light-induced in situ reconstruction of CoOOH-modified TiO₂/CoNi-LDH heterojunction photoanode: achieving excellent photoelectrochemical cathodic protection and bacterial inactivation[J]. Light: Science & Applications, 2026,15(8):2598-2610. DOI: 10.1038/s41377-026-02328-z.

Wang, M. Q. et al. Light-induced in situ reconstruction of CoOOH-modified TiO₂/CoNi-LDH heterojunction photoanode: achieving excellent photoelectrochemical cathodic protection and bacterial inactivation. Light: Science & Applications, 15, 2598-2610 (2026). DOI: 10.1038/s41377-026-02328-z.
Meiqi Wang, Yiqing Tang, Juan Liu, 等. Light-induced in situ reconstruction of CoOOH-modified TiO₂/CoNi-LDH heterojunction photoanode: achieving excellent photoelectrochemical cathodic protection and bacterial inactivation[J]. Light: Science & Applications, 2026,15(8):2598-2610. DOI: 10.1038/s41377-026-02328-z. DOI：

Wang, M. Q. et al. Light-induced in situ reconstruction of CoOOH-modified TiO₂/CoNi-LDH heterojunction photoanode: achieving excellent photoelectrochemical cathodic protection and bacterial inactivation. Light: Science & Applications, 15, 2598-2610 (2026). DOI: 10.1038/s41377-026-02328-z. DOI：

摘要

Abstract

Corrosion and biofouling of me

tals in marine environments are critical issues affecting the long-term stability of marine engineering infrastructure. Traditional protection methods suffer from limitations such as high energy consumption and environmental pollution. Photoelectrochemical cathodic protection (PECCP) technology utilizes solar energy to drive the transfer of photogenerated electrons from semiconductors to metal surfaces

enabling green and low-energy-consumption corrosion protection. However

its core challenge lies in developing efficient and stable photoelectrode materials. In this study

a TiO

/CoNi-LDH composite photoanode was fabricated via hydrothermal and electrodeposition methods. It was found that under illumination

CoNi-LDH undergoes in situ reconstruction to generate CoOOH as a cocatalyst. The composite material exhibited excellent photoelectrochemical cathodic protection performance in a simulated seawater environment

providing a potential shift of 380 mV for coupled 304 stainless steel under intermittent illumination. Simultaneously

it demonstrated high antibacterial efficiency

achieving a 100% inactivation rate against

Pseudomonas aeruginosa

within 120 min. Structural characterization and theoretical calculations revealed that the in situ formation of CoOOH enhances interfacial charge transfer and promotes the generation of reactive oxygen species

thereby synergistically improving the anti-corrosion and anti-biofouling performance of the material. This study provides a novel strategy for developing integrated marine protective materials with long-term corrosion resistance and biofouling prevention capabilities.

关键词

Keywords

references

Hou, B. R. et al. The cost of corrosion in China. npj Mater. Degrad. 1 , 4 (2017)..

Rajala, P. et al. Sulfate-dependant microbially induced corrosion of mild steel in the deep sea: a 10-year microbiome study. Microbiome 10 , 4 (2022)..

Li, Q. S. et al. Effect of deep sea pressures on the corrosion behavior of X65 steel in the artificial seawater. Acta Metall. Sin. Engl. Lett. 32 , 972–980 (2019)..

Liu, R., Liu, L. & Wang, F. H. The role of hydrostatic pressure on the metal corrosion in simulated deep-sea environments—a review. J. Mater. Sci. Technol. 112 , 230–238 (2022)..

Pahuja, P. et al. An eco-friendly corrosion inhibitor Cuscuta reflexa extract and PEG400 for mild steel inhibition in acidic medium: computational and experimental investigations. Environ. Sci. Pollut. Res. 30 , 98701–98717 (2023)..

Shi, S. E., Zhang, Z. M. & Yu, L. M. Hydrophobic polyaniline/modified SiO 2 coatings for anticorrosion protection. Synth. Met. 233 , 94–100 (2017)..

Liu, J. H. et al. Corrosion resistance of waterborne epoxy coating pigmented by nano-sized aluminium powder on steel. J. Cent. South Univ. 19 , 46–54 (2012)..

Kainuma, S. et al. Corrosion protection of steel members using an Al-Zn base sacrificial anode and fiber sheet in an atmospheric environment. Constr. Build. Mater. 224 , 880–893 (2019)..

Zhang, K. L. et al. Surface energy mediated sulfur vacancy of ZnIn 2 S 4 atomic layers for photocatalytic H 2 O 2 production. Adv. Funct. Mater. 33 , 2302964 (2023)..

Zhang, X. et al. Graphitic carbon nitride homojunction films for photocathodic protection of 316 stainless steel and Q235 carbon steel. J. Electroanal. Chem. 857 , 113703 (2020)..

Bu, Y. Y. & Ao, J. P. A review on photoelectrochemical cathodic protection semiconductor thin films for metals. Green. Energy Environ. 2 , 331–362 (2017)..

Wang, N. et al. Preparation of Ag@CuFe 2 O 4 @TiO 2 nanocomposite films and its performance of photoelectrochemical cathodic protection. J. Mater. Sci. Technol. 100 , 12–19 (2022)..

Liu, J. et al. CuInS 2 /TiO 2 heterojunction with elevated photo-electrochemical performance for cathodic protection. J. Mater. Sci. Technol. 122 , 211–218 (2022)..

Xue, J. J. et al. Significantly enhanced photoelectrochemical cathodic protection performance and preventing biofouling dual functional Cu 2 ZnSnS 4 /TiO 2 nanotube composite material. J. Cent. South Univ. 31 , 3583–3595 (2024)..

Huang, Z. Y. et al. Corner-sharing tetrahedrally coordinated W-V dual active sites on Cu 2 V 2 O 7 for photoelectrochem ical water oxidation. Small 20 , 2307547 (2024)..

Xu, S. W. et al. Fabrication of multi-layered TiO 2 /CdS@ZnS nanocomposite film for highly stable and efficient photocathodic protection of carbon steel. Mater. Today Commun. 42 , 111134 (2025)..

Tian, J. et al. A Mo doping WO 3 /CdZnS heterojunction photoelectrode for boosting electron storage capacity. Appl. Surf. Sci. 634 , 157680 (2023)..

Arun, J. et al. Synthesis and application of titanium dioxide photocatalysis for energy, decontamination and viral disinfection: a review. Environ. Chem. Lett. 21 , 339–362 (2023)..

Balakrishnan, A. et al. Biopolymer-supported TiO 2 as a sustainable photocatalyst for wastewater treatment: a review. Environ. Chem. Lett. 20 , 3071–3098 (2022)..

Xiao, B. H. et al. Inverse opal anatase/rutile TiO 2 multi-heterojunctions enable efficient photoelectrochemical water splitting. Chem. Sci. 16 , 4876–4883 (2025)..

Jing, C. et al. Layered double hydroxide-based nanomaterials for supercapacitors and ba tteries: strategies and mechanisms. Prog. Mater. Sci. 150 , 101410 (2025)..

Devaraj, M. & Zhou, X. H. Recent advances in photocatalytic performances of layered double hydroxides-based materials for VOCs and CO 2 mitigation: a comprehensive review. Coord. Chem. Rev. 532 , 216509 (2025)..

Cao, Y. H. et al. Layered double hydroxide for multi-functionalized corrosion protection of metals: a review. J. Mater. Sci. Technol. 102 , 232–263 (2022)..

Huang, S. et al. Enhanced photoelectrocatalytic activities for CH 3 OH-to-HCHO conversion on Fe 2 O 3 /MoO 3 : Fe-O-Mo covalency dominates the intrinsic activity. Angew. Chem. Int. Ed. 60 , 9546–9552 (2021)..

Xia, S. J. et al. Water-gas shift reaction catalyzed by layered double hydroxides supported Au-Ni/Cu/Pt bimetallic alloys. Appl. Catal. B Environ. 272 , 118949 (2020)..

Zou, X. X., Goswami, A. & Asefa, T. Efficient noble metal-free (electro)catalysis of water and alcohol oxidations by zinc-cobalt layered double hydroxide. J. Am. Chem. Soc. 135 , 17242–17245 (2013)..

Wang, L. et al. Tantalum nitride nanorod arrays: introducing Ni–Fe layered double hydroxides as a cocatalyst strongly stabilizing photoanodes in water splitting. Chem. Mater. 27 , 2360–2366 (2015)..

Chen, W. J. et al. Cobalt–Nickel layered double hydroxides modified on TiO 2 nanotube arrays for highly efficient and stable PEC water splitting. Small 13 , 1602420 (2017)..

Rather, R. A. et al. Plasmonic stimulated photocatalytic/electrochemical hydrogen evolution from water by (001) faceted and bimetallic loaded titania nanosheets under sunlight irradiation. J. Clean. Prod. 175 , 394–401 (2018)..

Chen, Z. Q. et al. Spin polarization induced rapid reconstruction of transition metal oxide for efficient water electrolysis. Chem. Sci. 16 , 14750–14759 (2025)..

Wang, H. et al. In situ sacrificial CoMoO 4 template to derive molybdenum-doped CoOOH nanosheets for alkaline hydrogen evolution reaction. Appl. Catal. B Environ. Energy 367 , 125110 (2025)..

Lu, X. Y. et al. Synergetic effect of graphene and Co(OH) 2 as cocatalysts of TiO 2 nanotubes for enhanced photogenerated cathodic protection . J. Mater. Sci. Technol. 37 , 55–63 (2020)..

Li, H. et al. Enhanced photocathodic protection performance of Co 3 S 4 nanoparticles modified porous BiVO 4 composites for 304 stainless steel. Mater. Res. Bull. 181 , 113110 (2025)..

Liu, J. X. et al. N-doped hollow porous carbon spheres@Co Cu Fe alloy nanospheres as novel non-precious metal electrocatalysts for HER and OER. Int. J. Hydrog. Energy 47 , 5947–5960 (2022)..

Feng, C. et al. A novel TiO 2 nanotube arrays/MgTi x O y multiphase-heterojunction film with high efficiency for photoelectrochemical cathodic protection. Corros. Sci. 166 , 108441 (2020)..

Zu, W. H. et al. Carbon nitride interlayer-enhanced TiO 2 /WO 3 nanorods with surface oxygen vacancies for durable photocathodic performance on 304 stainless steel in simulated seawater. Chem. Eng. J. 490 , 151533 (2024)..

Jiang, X. H. et al. High-efficiency photoelectrochemical cathodic protection performance of the TiO 2 /AgInSe 2 /In 2 Se 3 multijunction nanosheet array. Corros. Sci. 176 , 108901 (2020)..

Chen, X. et al. Facile preparation of ZIF-67 on TiO 2 and enhancement photocathodic protection for 316L stainless steel. Electrochim. Acta 492 , 144350 (2024)..

Ren, X. Q. et al. Co(OH) 2 vs. CoOOH: understanding the origin of in-situ converted catalyst’s high catalytic activity towards oxygen evolution reaction. Rare Met. 44 , 5498–5511 (2025)..

Yang, J. et al. Synthesis and characterization of cobalt hydroxide, cobalt oxyhydroxide, and cobalt oxide nanodiscs. J. Phys. Chem. C 114 , 111–119 (2010)..

Deng, P. J. et al. Layered double hydroxides with carbonate intercalation as ultra-stable anodes for seawater splitting at ampere-level current density. Adv. Energy Mater. 14 , 2400053 (2024)..

Moysiadou, A. et al. Mechanism of oxygen evolution catalyzed by cobalt oxyhydroxide: cobalt superoxide species as a key intermediate and dioxygen release as a rate-determining step. J. Am. Chem. Soc. 142 , 11901–11914 (2020)..

Chen, R. R. et al. Synthesis of TiO 2 nanotubes/nickel-gallium layered double hydroxide heterostructure for highly-efficient photocathodic a nticorrosion of 304 stainless steel. Surf. Coat. Technol. 424 , 127641 (2021)..

Wang, Y. X. et al. Transformation of Co(OH) 2 to CoOOH for photocatalytic oxygen evolution reaction. J. Phys. Chem. Lett. 16 , 9716–9721 (2025)..

浏览量

Downloads

CSCD

文章被引用时，请邮件提醒。

Submit

工具集

关联资源

Ultrahigh-Q integrated flame-hydrolysis-deposited germano-silicate resonators on silicon

Thouless quantum walks in topological flat bands

High-efficiency multi-scale holographic volumetric 3D printing with a phase light modulator

Energy extraction from dark Fe3+ in A2Sc2B4O11:Fe3+, Yb3+ (A = Sr, Ba) toward promoted NIR luminescence and pc-LED light source for multifunctional applications

High-efficiency and stable deep-blue iridium phosphorescent OLEDs with enhanced charge transfer dynamics

Light-induced in situ reconstruction of CoOOH-modified TiO2/CoNi-LDH heterojunction photoanode: achieving excellent photoelectrochemical cathodic protection and bacterial inactivation

Light-induced in situ reconstruction of CoOOH-modified TiO2/CoNi-LDH heterojunction photoanode: achieving excellent photoelectrochemical cathodic protection and bacterial inactivation

DOI：10.1038/s41377-026-02328-z

摘要

Abstract

关键词

Keywords

references

Light-induced in situ reconstruction of CoOOH-modified TiO₂/CoNi-LDH heterojunction photoanode: achieving excellent photoelectrochemical cathodic protection and bacterial inactivation

Light-induced in situ reconstruction of CoOOH-modified TiO₂/CoNi-LDH heterojunction photoanode: achieving excellent photoelectrochemical cathodic protection and bacterial inactivation