DataVXAdvanced Functional MaterialsPaper
journal article·2025-01Open access

Engineering Single‐Atom Catalysts on Conjugated Porphyrin Polymer Photocatalysts via E‐Waste for Sustainable Photocatalysis

Bolormaa Bayarkhuu, Hyekyung Cho, Gaeun Cho, Jeeho Hong, Yeongran Hong, Se‐Woong Baek, Sungeun Yang, Cafer T. Yavuz, Han Seul Kim, Jeehye Byun

Advanced Functional Materials· Volume 35· Issue 3
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Source abstract

Abstract

Abstract This study presents a surface engineering strategy utilizing electronic waste (e‐waste) to incorporate single‐atom catalysts on conjugated polymers. Employing a conjugated porphyrin polymeric photocatalyst, gold single‐atom‐site catalysts are successfully introduced using the acidic metal leachates from e‐waste, where metal speciation and composition are regulated during the metal loading processes. The resulting photocatalyst with gold single atoms demonstrates a remarkable hydrogen peroxide (H2O2) selectivity of up to 97.56%, yielding a pure H2O2 solution at 73.3 µm h−1 under white LED illumination. The produced H2O2 is activated to •OH radicals on the same polymer with mixed gold and iron atoms, enabling a photo‐Fenton reaction and the complete degradation of toxic microcystin‐LR within 10 min under visible light. This study highlights the universal applicability of the metal mining strategy in various photoreactions. It is believed that this discovery pioneers sustainable photocatalysis, allowing the tuning of reactivity and selectivity on photocatalytic surfaces using metal waste.
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Research context

PolymersCatalysis & surfaces

OpenAlex topics: Advanced Photocatalysis Techniques · Electrocatalysts for Energy Conversion · Nanomaterials for catalytic reactions

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Water Cycle Research Center Korea Institute of Science and Technology (KIST) Seoul 02792 Republic of Korea

Division of Energy and Environment Technology KIST‐School University of Science and Technology Seoul 02792 Republic of Korea

Department of Chemical & Biological Engineering Korea University Seoul 02841 Republic of Korea

Division of National Supercomputing R&D Korea Institute of Science and Technology Information (KISTI) 245 Daehak‐ro, Yuseong‐gu Daejeon 34141 Republic of Korea

Graduate School of Energy and Environment (KU‐KIST Green School) Korea University Seoul 02841 Republic of Korea

Energy Materials Research Center Korea Institute of Science and Technology (KIST) Seoul 02792 Republic of Korea

Industrial Materials Research Group Research Institute of Industrial Science and Technology (RIST) Pohang Gyeongbuk 37673 Republic of Korea

Division of Nanomaterials Science and Engineering KIST‐School University of Science and Technology Seoul 02792 Republic of Korea

Oxide & Organic Nanomaterials for Energy & Environment Laboratory Chemistry Program Physical Science & Engineering (PSE) KAUST Thuwal 23955 Saudi Arabia

Department of Advanced Materials Engineering Chungbuk National University Cheongju Chungbuk 28644 Republic of Korea

Department of Urban Energy Environmental Engineering Chungbuk National University Cheongju Chungbuk 28644 Republic of Korea

Funding

National Research Foundation of Korea · Korea Institute of Science and Technology Information · Chungbuk National University · Ministry of Science and ICT, South Korea · Korea Institute of Science and Technology

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