Visible‐Light‐Driven Selective Mineralization of Organohalides on Spatially Close Au Single‐Atom and Nanocluster Neighbors Over Poly(Heptazine Imides)
Abstract Organohalides are commonly found pollutants with long‐term persistence in industrial wastewater and drinkable water. Although these pollutants only constitute a small portion of the total organic carbon (TOC), they contribute major toxicity, posing a threat to ecosystem, biodiversity, and public health. Selective removal of organohalides from wastewater/drinkable water is costly due to the orders of magnitude lower concentration of organohalides as compared to interferences. Herein, spatially close Au single atoms and nanoclusters composing of approximately 3–10 Au atoms were grown on highly crystalline potassium‐incorporated poly(heptazine imides). Microscopy and spectroscopy characterizations together with theoretical calculations revealed that under visible‐light illumination, the highly localized photogenerated holes could enable simultaneous generation of •OH on Au single atoms and selective adsorption of organohalides on Au nanoclusters, which greatly promoted the targeted removal of trace organohalides in water containing high concentrations of interferences. The fixed‐bed photoreactor built using the spatially close Au single atoms and nanoclusters on poly(heptazine imides) achieved quick degradation of refractory organohalide pollutants in tap water and ground water (2 L h −1 ), exhibiting an over 3‐fold log efficiency enhancement compared to traditional advanced oxidation processes.
Authors
- Nan Jian (ORCID: https://orcid.org/0000-0003-2179-8237)
- Qitao Zhang (ORCID: https://orcid.org/0000-0002-8817-0033)
- Ying Tu (ORCID: https://orcid.org/0000-0001-7770-9876)
- Laiquan Li (ORCID: https://orcid.org/0000-0002-3301-9029)
- Jing Wang (ORCID: https://orcid.org/0000-0001-6080-7998)
- Mingkai Liu (ORCID: https://orcid.org/0000-0001-9060-848X)
- Zhijun Cao (ORCID: https://orcid.org/0000-0002-5519-9462)
- Teruhisa Ohno
- Yanhui Ao (ORCID: https://orcid.org/0000-0002-3665-9881)
- Zhenyuan Teng (ORCID: https://orcid.org/0000-0001-7624-6259)
- Chenliang Su (ORCID: https://orcid.org/0000-0002-8453-1938)
- Ying‐Rui Lu (ORCID: https://orcid.org/0000-0002-6002-5627)
- Jianmei Lu (ORCID: https://orcid.org/0000-0003-2451-7154)
- Yan Yan (ORCID: https://orcid.org/0000-0001-8786-903X)
- Bin Liu (ORCID: https://orcid.org/0000-0002-4685-2052)
- Huan Wu (ORCID: https://orcid.org/0000-0003-2285-3816)
Institutions
- Shinshu University (JP)
- University of Shanghai for Science and Technology (CN)
- Hohai University (CN)
- City University of Hong Kong (HK)
- Shenzhen University (CN)
- Kyushu Institute of Technology (JP)
- Soochow University (CN)
- National Synchrotron Radiation Research Center (TW)
- Integrated Optoelectronics (Norway) (NO)
- Zhejiang Environmental Monitoring Center (CN)
- Beijing Municipal Ecological and Environmental Monitoring Center (CN)
- Anhui University of Technology (CN)
Publication Details
- Journal
- Angewandte Chemie
- Published
- 2025-05-20
- DOI
- https://doi.org/10.1002/ange.202507654
- Citations
- 1
- Primary Topic
- Advanced Photocatalysis Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.36
Funders
- National Natural Science Foundation of China
- Department of Education of Guangdong Province
- National Key Research and Development Program of China
- Shenzhen Peacock Plan
- Shenzhen Science and Technology Innovation Program
- Basic and Applied Basic Research Foundation of Guangdong Province