Journal of Materials Chemistry A
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2025
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IF 9.5
Yi Chen,Weilin Shi,Claudia Li,Kang Hui Lim,Xueqian Wang,Langlang Wang,Ping Ning,Yixing Ma,Sibudjing Kawi
Global warming, driven by rising levels of CO2 in the atmosphere, is an environmental predicament confronted by humanity. Plasma catalytic decomposition of carbon dioxide into carbon monoxide is a practical approach to mitigate this challenge, which can be a crucial step in carbon recycling. Metal selenides are promising candidates owing to their abundant reserves and outstanding electron transfer properties, making them highly active in chemical reactions. In this study, the morphology of AlO(OH) and the dispersion of Cu2−xSe were optimized by hydrothermal synthesis temperature. Specifically, the Cu2−xSe-Al-180 catalyst, prepared at a hydrothermal temperature of 180 °C, formed AlO(OH) with good crystallinity and a nanoscale thin-sheet structure, with Cu2−xSe uniformly distributed on the AlO(OH) support. The reaction of CO2 decomposition to CO production by integrating Cu2−xSe-Al-180 with dielectric barrier discharge (DBD) plasma led to a CO2 conversion of up to 28.07% at a specific input energy (SIE) of 58.07 kJ L−1. The excellent CO2 adsorption properties of AlO(OH) and Cu2Se reduce the activation energy barrier of the reaction, and Cu2Se further promotes the excited activation of CO2 in the plasma. These findings offer valuable insights for the development and design of catalysts in the field of plasma catalysis and highlight the potential of CuSe-based materials in CO2 reduction technologies.
研究领域:
环境科学
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材料科学
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化学工程
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产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2023
·Vol. 11
·期 23
·7654-7661
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IF 6.4
Jinchan He,Xiao Zhang,Cong Xie,Hsueh Shih Chen,Ping Yang
Because of their inherent ionic properties, inorganic cesium halide lead perovskite nanocrystals (NCs) are normally unstable in light and heat environments as well as polar solvents, which seriously limit their practical application. In this paper, AlO(OH) nanosheets were assembled into hollow mesoporous spheres to encapsulate CsPbX3 NCs for increasing stability according to the powerful adsorption of AlO(OH) on Pb ions. The hollow AlO(OH) assemblies were created via hydrothermal synthesis. The in situ growth of CsPbX3 NCs in AlO(OH) assemblies was then finished in dimethylformamide solutions. After encapsulation, the stability of the NCs was greatly improved and the exchange reaction of halogen ions was effectively prevented. The NCs in the assemblies exhibited high PL quantum yields (PLQYs). Namely, blue-, green-, and red-emitting CsPbX3 (X = Cl, Br, and I)@AlO(OH) composites were fabricated. The composites were further mixed with polystyrene (PS) to prepare a flexible photoluminescent (PL) film with excellent bendable and foldable properties. The initial PLQYs of blue-, green-, and red-emitting CsPbX3@AlO(OH) composites were found to be 48.2, 96.4, and 43.7%, respectively. The films revealed high stability against water because of the excellent hydrophobic properties of PS. These emitting films were made into bands of various shapes, in which their well-flexible nature endowed the films with important applications.
研究领域:
材料科学
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纳米技术
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产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2022
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IF 6.14
Chengyan Wang,Yangsai Lyu,Jia Li,Li Li,Tingting Li,Jie Yang,Ningning Xing,Xiaolei Zhang
Excessive fluorine can cause a serious threat to human health. It is significant but challenging to develop a straightforward and rapid way to simultaneously detect and remove excess F– from water. Herein, we presented a three-dimensional (3D) hierarchical UiO-66-NH2 nanoparticle/γ-AlO(OH) nanowire hybrid synthesized by a facile biotemplate route for simultaneous detection and removal of F– from water. We elaborately assembled two kinds of materials in a bioinspired 3D hierarchical structure as a functional unit to achieve detection and removal of dual functions. The outer UiO-66-NH2 nanoparticles served as a fluorescent sensor to detect and capture F– via a strong fluorescence enhancement effect caused by the electron transfer from F– and γ-AlO(OH) and acted as the capture unit of F–. The inner γ-AlO(OH) nanowire layer served as a F– absorbent through ion exchange between F– and γ-AlO(OH). The resulting UiO-66-NH2 nanoparticle/γ-AlO(OH) nanowire hybrid displayed excellent selectivity and sensitivity for F– detection (the detection range was 0–5 mM and the limit of detection was as low as 0.77 μM) and high capacity for F– removal (the maximum equilibrium adsorption capacity qmax was as high as 87.0 mg g–1). This dual-function material provided a strategy for simultaneously selective sensing and efficient removal of anionic pollutants from water.
研究领域:
环境科学
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材料科学
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化学
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DOI
高影响因子
Environmental Science-Nano
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2021
·Vol. 8
·期 12
·3833-3845
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IF 8.131
Tingting Li,Yangsai Lyu,Jia Li,Chengyan Wang,Ningning Xing,Jie Yang,Min Zuo
Micromotors have held great promise for environmental treatment due to their unique self-propelled movement that can significantly accelerate the chemical process in solution. Herein, we have developed a new AO–Mn2O3/γ-AlO(OH) fluorescent micromotor using renewable and uniquely hollow kapok fibers as biological templates. The AO–Mn2O3/γ-AlO(OH) micromotor was powered by the asymmetric decomposition of hydrogen peroxide fuel catalyzed by Mn2O3, reaching a maximum speed of 139.6 μm s−1 in 3% H2O2 solution. The micromotor revealed a markedly enhanced fluorescence effect compared to both pure AO solution and non-micromotor counterparts and exhibited excellent selectivity and sensitivity for Hg2+ detection. The detection range and limit for Hg2+ were 5 × 10−8–5 × 10−5 M and 2.25 × 10−8 M, respectively. The enhanced Hg2+ sensing benefited from the synergy of enhanced fluorescence via the inhibition of the dimerization of AO, fluorescence quenching induced by charge transfer and the enhanced contact between the micromotor and Hg2+ ions resulted from the self-propelled motion. This micromotor-assisted fluorescence detection idea provided a new strategy for the development of sensors with high sensitivity.
研究领域:
环境科学
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材料科学
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分析化学
✓ 已验证
产品关联
DOI
高影响因子
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