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Li W, Chen Y, Zhang J, Zeng F, Bao J, Liu L, Tian G. Cocatalyst Embedded Ce-BDC-CeO 2 S-Scheme Heterojunction Hollowed-Out Octahedrons With Rich Defects for Efficient CO 2 Photoreduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2406487. [PMID: 39258378 DOI: 10.1002/smll.202406487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2024] [Revised: 09/03/2024] [Indexed: 09/12/2024]
Abstract
Constructing heterojunction photocatalysts with optimized architecture and components is an effective strategy for enhancing CO2 photoreduction by promoting photogenerated carrier separation, visible light absorption, and CO2 adsorption. Herein, defect-rich photocatalysts (Ni2P@Ce-BDC-CeO2 HOOs) with S-scheme heterojunction and hollowed-out octahedral architecture are prepared by decomposing Ce-BDC octahedrons embedded with Ni2P nanoparticles and subsequent lactic acid etching for CO2 photoreduction. The hollowed-out octahedral architecture with multistage pores (micropores, mesopores, and macropores) and oxygen vacancy defects are simultaneously produced during the preparation process. The S-scheme heterojunction boosts the quick transfer and separation of photoinduced charges. The formed hollowed-out multi-stage pore structure is favorable for the adsorption and diffusion of CO2 molecules and gaseous products. As expected, the optimized photocatalyst exhibits excellent performance, producing CO with a yield of 61.6 µmol h-1 g-1, which is four times higher than that of the original Ce-BDC octahedrons. The X-ray photoelectron spectroscopy, scanning Kelvin probe, and electron spin resonance spectroscopy characterizations confirm the S-schematic charge-transfer route. The key intermediate species during the CO2 photoreduction process are detected by in situ Fourier transform infrared spectroscopy to support the proposed mechanism for CO2 photoreduction. This work presents a synthetic strategy for excellent catalysts with potential prospects in photocatalytic applications.
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Affiliation(s)
- Wenpeng Li
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, P. R. China
| | - Yajie Chen
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, P. R. China
| | - Jiajia Zhang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, P. R. China
| | - Fanze Zeng
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, P. R. China
| | - Jinyu Bao
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, P. R. China
| | - Lu Liu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, P. R. China
| | - Guohui Tian
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, P. R. China
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Tenjimbayashi M, Mouterde T, Roy PK, Uto K. Liquid marbles: review of recent progress in physical properties, formation techniques, and lab-in-a-marble applications in microreactors and biosensors. NANOSCALE 2023; 15:18980-18998. [PMID: 37990550 DOI: 10.1039/d3nr04966c] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Liquid marbles (LMs) are nonsticking droplets whose surfaces are covered with low-wettability particles. Owing to their high mobility, shape reconfigurability, and widely accessible liquid/particle possibilities, the research on LMs has flourished since 2001. Their physical properties, fabrication mechanisms, and functionalisation capabilities indicate their potential for various applications. This review summarises the fundamental properties of LMs, the recent advances (mainly works published in 2020-2023) in the concept of LMs, physical properties, formation methods, LM-templated material design, and biochemical applications. Finally, the potential development and variations of LMs are discussed.
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Affiliation(s)
- Mizuki Tenjimbayashi
- Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
| | - Timothée Mouterde
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Pritam Kumar Roy
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Koichiro Uto
- Research Center for Macromolecules and Biomaterials, NIMS, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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Gunatilake U, Morales R, Basabe-Desmonts L, Benito-Lopez F. Magneto Twister: Magneto Deformation of the Water-Air Interface by a Superhydrophobic Magnetic Nanoparticle Layer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:3360-3369. [PMID: 35262362 PMCID: PMC8945397 DOI: 10.1021/acs.langmuir.1c02925] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Remote manipulation of superhydrophobic surfaces provides fascinating features in water interface-related applications. A superhydrophobic magnetic nanoparticle colloid layer is able to float on the water-air interface and form a stable water-solid-air interface due to its inherent water repulsion, buoyancy, and lateral capillarity properties. Moreover, it easily bends downward under an externally applied gradient magnetic field. Thanks to that, the layer creates a stable twister-like structure with a flipped conical shape, under controlled water levels, behaving as a soft and elastic material that proportionally deforms with the applied magnetic field and then goes back to its initial state in the absence of an external force. When the tip of the twister structure touches the bottom of the water container, it provides a stable magneto movable system, which has many applications in the microfluidic field. We introduce, as a proof-of-principle, three possible implementations of this structure in real scenarios, the cargo and transport of water droplets in aqueous media, the generation of magneto controllable plugs in open surface channels, and the removal of floating microplastics from the air-water interface.
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Affiliation(s)
- Udara
Bimendra Gunatilake
- Microfluidics
Cluster UPV/EHU, Analytical Microsystems & Materials for Lab-on-a-Chip
(AMMa-LOAC) Group, Analytical Chemistry Department, University of the Basque Country UPV/EHU, Leioa 48940, Spain
- Microfluidics
Cluster UPV/EHU, BIOMICs Microfluidics Group, Lascaray Research Center, University of the Basque Country UPV/EHU, Vitoria-Gasteiz 01006, Spain
| | - Rafael Morales
- Department
of Physical-Chemistry and BCMaterials, University
of the Basque Country UPV/EHU, Leioa 48940, Spain
- Basque
Foundation of Science, IKERBASQUE, María Díaz Haroko
Kalea, 3, Bilbao 48013, Spain
| | - Lourdes Basabe-Desmonts
- Microfluidics
Cluster UPV/EHU, BIOMICs Microfluidics Group, Lascaray Research Center, University of the Basque Country UPV/EHU, Vitoria-Gasteiz 01006, Spain
- Basque
Foundation of Science, IKERBASQUE, María Díaz Haroko
Kalea, 3, Bilbao 48013, Spain
- Bioaraba
Health Research Institute, Microfluidics
Cluster UPV/EHU, Vitoria-Gasteiz 01006, Spain
- Basque Center
for Materials, Applications and Nanostructures, UPV/EHU Science Park, BCMaterials, Leioa 48940, Spain
- . Phone: 0034-945-01-4538
| | - Fernando Benito-Lopez
- Microfluidics
Cluster UPV/EHU, Analytical Microsystems & Materials for Lab-on-a-Chip
(AMMa-LOAC) Group, Analytical Chemistry Department, University of the Basque Country UPV/EHU, Leioa 48940, Spain
- Bioaraba
Health Research Institute, Microfluidics
Cluster UPV/EHU, Vitoria-Gasteiz 01006, Spain
- Basque Center
for Materials, Applications and Nanostructures, UPV/EHU Science Park, BCMaterials, Leioa 48940, Spain
- . Phone: 0034-945-01-3045
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