| Enhanced photocatalytic hydrogen production performance of pillararene-doped mesoporous TiO2 with extended visible-light response |
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| 作者姓名： | Haimei Wu Mengyuan Wang Fang Jing Derui Kong Yifan Chen Chunman Jia Jianwei Li |
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| 作者单位： | 1. Hainan Provincial Key Laboratory of Fine Chemicals, Advanced Materials of Tropical Island Resources of Ministry of Education, College of Chemical Engineering and Technology, Hainan University;2. Medi City Research Laboratory, University of Turku |
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| 基金项目： | financial support from the Natural Science Foundation of Hainan Province,China (No. 219QN151)；;the National Natural Science Foundation of China (No. 21801052)； |
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| 摘 要： | Pillararenes are a new type of supramolecular hosts,and they have been widely applied in drug delivery,catalysis,separation process,and sensors.However,they have rarely been used to produce hydrogen.Here,we report that pillararenes were used as functional molecules to explore photocatalysts and efficiently promoted hydrogen production from water.The most common and easily synthesized pdimethoxy pillar5]arene（PI-OMe） was employed to form an organic-inorganic hybrid material with titanium dioxide...
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| 收稿时间： | 22 July 2021 |
Enhanced photocatalytic hydrogen production performance of pillararene-doped mesoporous TiO2 with extended visible-light response |
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| Haimei Wu,Mengyuan Wang,Fang Jing,Derui Kong,Yifan Chen,Chunman Jia,Jianwei Li.Enhanced photocatalytic hydrogen production performance of pillararene-doped mesoporous TiO2 with extended visible-light response[J].Chinese Chemical Letters,2022,33(4):1983-1987. |
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| Institution: | 1. Hainan Provincial Key Laboratory of Fine Chemicals, Advanced Materials of Tropical Island Resources of Ministry of Education, College of Chemical Engineering and Technology, Hainan University, Haikou 570228, China;2. MediCity Research Laboratory, University of Turku, Tykistökatu 6, Turku 20520, Finland |
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| Abstract: | Pillararenes are a new type of supramolecular hosts, and they have been widely applied in drug delivery, catalysis, separation process, and sensors. However, they have rarely been used to produce hydrogen. Here, we report that pillararenes were used as functional molecules to explore photocatalysts and efficiently promoted hydrogen production from water. The most common and easily synthesized p-dimethoxy pillar5]arene (PI-OMe) was employed to form an organic-inorganic hybrid material with titanium dioxide (TiO2), denoted as PI-OMe-TiO2, using a convenient sol-gel method. When the material was loaded with Pt nanoparticles, the resulting Pt/PI-OMe-TiO2 had a good activity and stability in catalyzing water splitting to produce hydrogen under visible light. The optimized catalyst Pt/PI-OMe-TiO2(5.2 wt%) had a photocatalytic hydrogen production rate of 1736 µmol g?1 h?1 under visible light (λ > 420 nm) irradiation. The catalyst with a Pt loading of 0.5 wt% and a PI-OMe content of 5.2 wt% also showed good long-term durability after 10 cycles of 50 h testing. The total amount of hydrogen produced was 65.01 mmol/g, and the corresponding turnover number (TON) value was 2084. Our findings suggest that pillararene derivatives are promising functional molecules to make efficient and stable hybrid photocatalysts with TiO2 and open a new door to hydrogen production using visible light. |
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