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Shen Z, Yang Y, Li Y, Cheng X, Zhang H, Zou X, Qiu M, Huang H, Pan H, Xia Q, Ge Z, Cao Y, Gao J, Wang Y. Titanium carbide sealed cadmium sulfide quantum dots on carbon, oxygen-doped boron nitride for enhanced and durable photochemical carbon dioxide reduction. J Colloid Interface Sci 2024; 665:443-451. [PMID: 38537590 DOI: 10.1016/j.jcis.2024.03.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/17/2024] [Accepted: 03/20/2024] [Indexed: 04/17/2024]
Abstract
Despite great efforts that have been made, photocatalytic carbon dioxide (CO2) reduction still faces enormous challenges due to the sluggish kinetics or disadvantageous thermodynamics. Herein, cadmium sulfide quantum dots (CdS QDs) were loaded onto carbon, oxygen-doped boron nitride (BN) and encapsulated by titanium carbide (Ti3C2, MXene) layers to construct a ternary composite. The uniform distribution of CdS QDs and the tight interfacial interaction among the three components could be achieved by adjusting the loading amounts of CdS QDs and MXene. The ternary 100MX/CQ/BN sample gave a productive rate of 2.45 and 0.44 μmol g-1 h-1 for carbon monoxide (CO) and methane (CH4), respectively. This CO yield is 1.93 and 6.13 times higher than that of CdS QDs/BN and BN counterparts. The photocatalytic durability of the ternary composite is significantly improved compared with CdS QDs/BN because MXene can protect CdS from photocorrosion. The characterization results demonstrate that the excellent CO2 adsorption and activation capabilities of BN, the visible light absorption of CdS QDs, the good conductivity of MXene and the well-matched energy band alignment jointly promote the photocatalytic performance of the ternary catalyst.
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Affiliation(s)
- Zhangfeng Shen
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Yang Yang
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, China; College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Yuji Li
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Xiaohua Cheng
- Hangzhou Perfect Purity Installation Company Limited, Hangzhou 311404, China.
| | - Huayang Zhang
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide 5005, Australia
| | - Xuhui Zou
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Ming Qiu
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Hong Huang
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Hu Pan
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Qineng Xia
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Zhigang Ge
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Yongyong Cao
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Jing Gao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Yangang Wang
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, China.
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Mighri R, Turani-I-Belloto K, Demirci UB, Alauzun JG. Nanostructured Carbon-Doped BN for CO 2 Capture Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2389. [PMID: 37686897 PMCID: PMC10490533 DOI: 10.3390/nano13172389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 07/26/2023] [Accepted: 08/02/2023] [Indexed: 09/10/2023]
Abstract
Carbon-doped boron nitride (denoted by BN/C) was prepared through the pyrolysis at 1100 °C of a nanostructured mixture of an alkyl amine borane adduct and ammonia borane. The alkyl amine borane adduct acts as a soft template to obtain nanospheres. This bottom-up approach for the synthesis of nanostructured BN/C is relatively simple and compelling. It allows the structure obtained during the emulsion process to be kept. The final BN/C materials are microporous, with interconnected pores in the nanometer range (0.8 nm), a large specific surface area of up to 767 m2·g-1 and a pore volume of 0.32 cm3·g-1. The gas sorption studied with CO2 demonstrated an appealing uptake of 3.43 mmol·g-1 at 0 °C, a high CO2/N2 selectivity (21) and 99% recyclability after up to five adsorption-desorption cycles.
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Affiliation(s)
- Rimeh Mighri
- Institut Charles Gerhardt, Univ Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Kevin Turani-I-Belloto
- Institut Europeen des Membranes, IEM—UMR 5635, Univ Montpellier, ENSCM, CNRS, 34095 Montpellier, France
| | - Umit B. Demirci
- Institut Europeen des Membranes, IEM—UMR 5635, Univ Montpellier, ENSCM, CNRS, 34095 Montpellier, France
| | - Johan G. Alauzun
- Institut Charles Gerhardt, Univ Montpellier, CNRS, ENSCM, 34095 Montpellier, France
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