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学者姓名：曹昌盛
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Abstract ：
The oxidative dehydrogenation of propane (ODHP) represents a highly promising route for the industrial-scale production of propene. Non-metallic boron nitride (BN)-based materials, known for their high propene selectivity, have emerged as next-generation ODH catalysts. However, the real active sites on surfaces remain unclear due to the absence of visual experimental evidence. In this work, we introduce a chemical titration approach to clarify the active centers of NaOH modified BN (BN-NaOH) catalysts for ODHP. The BN-NaOH catalyst demonstrates outstanding performance, achieving over 90 % olefin selectivity and a stable propane conversion of 23.2 %. Notably, the turnover frequency (TOF) for B-OH sites reaching 1.2 h- 1, which significantly surpassed that of unmodified BN catalysts (0.6 h- 1). In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) analysis revealed that the formation of OH-nests on the BN-NaOH surface was primarily accountable for the enhanced reactivity. Moreover, the crucial role of these OH-nests during ODHP was further validated through selective chemical titration of B-OH groups using benzoic anhydride.
Keyword ：
Active sites Active sites Boron hydroxyl group Boron hydroxyl group In situ DRIFTS In situ DRIFTS Oxidative dehydrogenation of propane Oxidative dehydrogenation of propane
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| GB/T 7714 | Duan, Qiwei , Hu, Zhengli , Hu, Aoxue et al. Identification of active sites in boron nitride for propane oxidative dehydrogenation catalysis [J]. | CHEMICAL ENGINEERING SCIENCE , 2025 , 306 . |
| MLA | Duan, Qiwei et al. "Identification of active sites in boron nitride for propane oxidative dehydrogenation catalysis" . | CHEMICAL ENGINEERING SCIENCE 306 (2025) . |
| APA | Duan, Qiwei , Hu, Zhengli , Hu, Aoxue , Huang, Shuping , Chen, Ziyi , Yu, Kaihua et al. Identification of active sites in boron nitride for propane oxidative dehydrogenation catalysis . | CHEMICAL ENGINEERING SCIENCE , 2025 , 306 . |
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Existing photocatalysts face several challenges in producing hydrogen peroxide (H2O2), including low photogenerated carrier separation, the need for sacrificial agents, and the difficulty of recovering powdered samples. In this work, we achieved high-efficiency H2O2 production in pure water by constructing Z-scheme heterojunctions of 2D MOF/In2S3 film, which enhanced the separation and transfer efficiency of photogenerated carriers and allowed for easy recycling. The Al/In15% composite exhibited a superior photocatalytic performance of 422.88 mu mol g(-1) h(-1) H2O2, which is 2.44 times higher than that of pure Al-TCPP. The superior photocatalytic activity can be attributed to the heterojunction creating a built-in electric field that facilitates space charge separation and transfer, effectively inhibiting photogenerated carrier recombination. The powdered samples were loaded onto a PTFE film, which allowed for easy recovery from the photocatalytic system and demonstrated excellent stability, providing an effective strategy for recovering powder-based photocatalysts. This study provides a new approach for solving the problems of poor carrier separation capacity and the challenging recovery of photocatalysts by constructing a Z-scheme heterojunction thin film, realizing the efficient use of solar energy to produce H2O2 in pure water.
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| GB/T 7714 | Xia, Sa-Sa , Li, Lan , Bao, Chenhao et al. Constructing 2D MOF/In2S3 heterojunctions for efficient solar-driven H2O2 synthesis in pure water [J]. | INORGANIC CHEMISTRY FRONTIERS , 2024 , 11 (19) : 6605-6615 . |
| MLA | Xia, Sa-Sa et al. "Constructing 2D MOF/In2S3 heterojunctions for efficient solar-driven H2O2 synthesis in pure water" . | INORGANIC CHEMISTRY FRONTIERS 11 . 19 (2024) : 6605-6615 . |
| APA | Xia, Sa-Sa , Li, Lan , Bao, Chenhao , Li, Chunyan , Wu, Jianhao , Wang, Xiaozhuo et al. Constructing 2D MOF/In2S3 heterojunctions for efficient solar-driven H2O2 synthesis in pure water . | INORGANIC CHEMISTRY FRONTIERS , 2024 , 11 (19) , 6605-6615 . |
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Maximizing the catalytic activity of single-atom and nanocluster catalysts through the modulation of the interaction between these components and the corresponding supports is crucial but challenging. Herein, guided by theoretical calculations, a nanoporous bilayer WS2 Moir & eacute; superlattices (MSLs) supported Au nanoclusters (NCs) adjacent to Ru single atoms (SAs) (Ru-1/Au-n-2LWS(2)) is developed for alkaline hydrogen evolution reaction (HER) for the first time. Theoretical analysis suggests that the induced robust electronic metal-support interaction effect in Ru-1/Au-n-2LWS(2) is prone to promote the charge redistribution among Ru SAs, Au NCs, and WS2 MSLs support, which is beneficial to reduce the energy barrier for water adsorption and thus promoting the subsequent H-2 formation. As feedback, the well-designed Ru-1/Au-n-2LWS(2) electrocatalyst exhibits outstanding HER performance with high activity (eta(10) = 19 mV), low Tafel slope (35 mV dec(-1)), and excellent long-term stability. Further, in situ, experimental studies reveal that the reconstruction of Ru SAs/NCs with S vacancies in Ru-1/Au-n-2LWS(2) structure acts as the main catalytically active center, while high-valence Au NCs are responsible for activating and stabilizing Ru sites to prevent the dissolution and deactivation of active sites. This work offers guidelines for the rational design of high-performance atomic-scale electrocatalysts.
Keyword ：
hydrogen evolution reaction hydrogen evolution reaction moir & eacute moir & eacute nanoclusters/single atoms electronic metal-support interaction nanoclusters/single atoms electronic metal-support interaction superlattices superlattices
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| GB/T 7714 | Chen, Dechao , Gao, Tianyu , Wei, Zengxi et al. WS2 Moire Superlattices Supporting Au Nanoclusters and Isolated Ru to Boost Hydrogen Production [J]. | ADVANCED MATERIALS , 2024 , 36 (46) . |
| MLA | Chen, Dechao et al. "WS2 Moire Superlattices Supporting Au Nanoclusters and Isolated Ru to Boost Hydrogen Production" . | ADVANCED MATERIALS 36 . 46 (2024) . |
| APA | Chen, Dechao , Gao, Tianyu , Wei, Zengxi , Wang, Mengjia , Ma, Yingfei , Xiao, Dongdong et al. WS2 Moire Superlattices Supporting Au Nanoclusters and Isolated Ru to Boost Hydrogen Production . | ADVANCED MATERIALS , 2024 , 36 (46) . |
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Non-metallic heteroatom-doped carbon materials are promising catalysts for the oxidative dehydrogenation of propane (ODHP), but their controlled synthesis remains challenging. Herein, a novel three-dimensional N, P co-doped carbon nanosheet (NPC-NS-T) catalyst is prepared, which shows an impressive catalytic performance in the ODHP reaction with high propane conversion (20.0%) and high selectivity for propene (62.1%) and olefins (64.5%) at 500 degrees C along with good long-time stability. Comprehensive experimental characterizations revealed that incorporation of appropriate P can not only help to form more C 00000000 00000000 00000000 00000000 11111111 00000000 11111111 00000000 00000000 00000000 O species on the surface of NPC-NS-T but also inhibit the consumption of CO species under ODHP conditions, thereby remarkably improving the catalytic performance. This work could pave the way for developing efficient biomass-derived carbon catalysts for the oxidative dehydrogenation reactions of propane.
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| GB/T 7714 | Chen, Ziyi , Zhang, Xiaomin , Duan, Qiwei et al. Biomolecule-derived three-dimensional N, P co-doped carbon nanosheets for the efficient oxidative dehydrogenation of propane [J]. | DALTON TRANSACTIONS , 2024 , 54 (3) : 1191-1198 . |
| MLA | Chen, Ziyi et al. "Biomolecule-derived three-dimensional N, P co-doped carbon nanosheets for the efficient oxidative dehydrogenation of propane" . | DALTON TRANSACTIONS 54 . 3 (2024) : 1191-1198 . |
| APA | Chen, Ziyi , Zhang, Xiaomin , Duan, Qiwei , Wang, Guangming , Li, Shuchun , Yu, Kaihua et al. Biomolecule-derived three-dimensional N, P co-doped carbon nanosheets for the efficient oxidative dehydrogenation of propane . | DALTON TRANSACTIONS , 2024 , 54 (3) , 1191-1198 . |
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Photocatalytic organic synthesis has attracted much attention in recent years. Herein, a N and C co-decorated mesoporous TiO2 (mp-NCT) photocatalyst was synthesized for selective oxidation of alcohols. Notably, the asprepared mp-NCT composites possess large specific surface areas and mesoporous structures, which could provide sufficient active sites and improve mass transfer. Furthermore, the co-doping of N and C species could not only extend the light absorption, but also tune the valence band of TiO2. Meanwhile, numerous oxygen vacancies and intra-band could be introduced, which helps to reduce the combination of the photogenerated carriers. As a result, the mp-NCT composites show excellent photocatalytic performance towards selective oxidation of benzyl alcohol and its derivatives to corresponding aldehydes under simulated sunlight irradiation. Mechanism studies revealed that the photogenerated electrons, holes and high dynamic equilibrium concentration of O2 center dot- radicals were responsible for the efficient conversion of alcohols to aldehydes.
Keyword ：
functionalized TiO 2 functionalized TiO 2 Mesoporous Mesoporous N -doping N -doping Photocatalysis Photocatalysis Selective oxidation Selective oxidation
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| GB/T 7714 | Cao, Changsheng , Shen, Yaru , Shao, Yu . Rational design of nitrogen and carbon co-decorated mesoporous TiO2 composites for photocatalytic selective oxidation of alcohols [J]. | MOLECULAR CATALYSIS , 2024 , 567 . |
| MLA | Cao, Changsheng et al. "Rational design of nitrogen and carbon co-decorated mesoporous TiO2 composites for photocatalytic selective oxidation of alcohols" . | MOLECULAR CATALYSIS 567 (2024) . |
| APA | Cao, Changsheng , Shen, Yaru , Shao, Yu . Rational design of nitrogen and carbon co-decorated mesoporous TiO2 composites for photocatalytic selective oxidation of alcohols . | MOLECULAR CATALYSIS , 2024 , 567 . |
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A CdS/H2Ti5O11 ultrathin nanobelt nanocomposite (CdTi) was fabricated successfully by a two-step process. It was confirmed by SEM and TEM/HRTEM that the highly dispersed CdS about 15 nm in size was firmly anchored on the ultrathin nanobelt. The as-prepared CdTi-5 with an optimal loading of 81.3% CdS converted 4-nitroaniline to p-phenylenediamine, giving almost 100% yield with a selectivity of about 98% in 3 min under visible light irradiation. Its photocatalytic activity was much higher than that of the bare CdS and P25/CdS composition. The highly efficient performance was attributed to the synergetic effects of the formed heterojunction between titanate, nanobelt and CdS as well as the unique features of the titanate nanobelt, which makes the photo-generated electron to transfer smoothly and promotes the separation of photo-induced carriers. Finally, based on the experimental results of Mott-Schottky, UV-vis DRS and EPR, a possible reaction mechanism for the hydrogenation of 4-nitroaniline over the CdTi was proposed.
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| GB/T 7714 | Xiong, Jinhua , Liu, Yuhao , Cao, Changsheng et al. An architecture of CdS/H2Ti5O11 ultrathin nanobelt for photocatalytic hydrogenation of 4-nitroaniline with highly efficient performance [J]. | JOURNAL OF MATERIALS CHEMISTRY A , 2015 , 3 (13) : 6935-6942 . |
| MLA | Xiong, Jinhua et al. "An architecture of CdS/H2Ti5O11 ultrathin nanobelt for photocatalytic hydrogenation of 4-nitroaniline with highly efficient performance" . | JOURNAL OF MATERIALS CHEMISTRY A 3 . 13 (2015) : 6935-6942 . |
| APA | Xiong, Jinhua , Liu, Yuhao , Cao, Changsheng , Shen, Lijuan , Wu, Weiming , Liang, Shijing et al. An architecture of CdS/H2Ti5O11 ultrathin nanobelt for photocatalytic hydrogenation of 4-nitroaniline with highly efficient performance . | JOURNAL OF MATERIALS CHEMISTRY A , 2015 , 3 (13) , 6935-6942 . |
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Both active species and morphological effect are important for antimonate photocatalysis. However, there is little research on the relationship between them. The aims of this article are to investigate the relationship between morphological effect and mutual transformation of active species during photocatalytic degradation of Rhodamine B (RhB) over BaSb2O6. The existence of active species is confirmed by electron spin-resonance spectroscopy (ESR), photoluminescence method and N,N-diethyl-p-phenylenediamine (DPD) method. The role of active species is evaluated by adding scavengers of active species during the photocatalytic degradation of RhB, and the mutual transformation of active species are investigated by observing the influence of different conditions on H2O2 in the photocatalytic processes. The results show that the concentration of (OH)-O-center dot has the greatest influence on photocatalytic activity of BaSb2O6. As the sources of (OH)-O-center dot, the production of HO2 center dot/O-2(center dot-) and surface hydroxyl groups are dependent on the morphology of the sample. The concentrations of HO2 center dot/O-2(center dot-) and surface hydroxyl groups are higher on marigold-flower-like BaSb2O6 than that on rose-flower-like BaSb2O6. The morphological effect of BaSb2O6 may be applied similarly to other antimonate photocatalysts. (C) 2014 Elsevier B.V. All rights reserved.
Keyword ：
Antimonate Antimonate Mechanism Mechanism Morphology Morphology Photocatalysis Photocatalysis
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| GB/T 7714 | Chen, Jing , Li, Danzhen , Wang, Jubao et al. Morphological effect on photocatalytic degradation of Rhodamine B and conversion of active species over BaSb2O6 [J]. | APPLIED CATALYSIS B-ENVIRONMENTAL , 2015 , 163 : 323-329 . |
| MLA | Chen, Jing et al. "Morphological effect on photocatalytic degradation of Rhodamine B and conversion of active species over BaSb2O6" . | APPLIED CATALYSIS B-ENVIRONMENTAL 163 (2015) : 323-329 . |
| APA | Chen, Jing , Li, Danzhen , Wang, Jubao , Wang, Peng , Cao, Changsheng , Shao, Yu et al. Morphological effect on photocatalytic degradation of Rhodamine B and conversion of active species over BaSb2O6 . | APPLIED CATALYSIS B-ENVIRONMENTAL , 2015 , 163 , 323-329 . |
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Nitrogen-doped and carbon species decorated TiO2 composites (Cts/TiO2) are prepared by using chitosan as a natural nitrogen and carbon source to combine with TiO2 by a facile and low-cost method for the first time. Their structures and properties are characterized by X-ray diffraction (XRD), UV-vis diffuse reflectance spectroscopy (DRS), Fourier-transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), N-2 adsorption-desorption isotherms (BET), and electron spin resonance spectroscopy (ESR). The results show that the visible light absorption range of the composites even can be extended to 650nm. Photocatalytic degradation of Rhodamine B (RhB) under visible light (420 nm < lambda < 800 nm) irradiation is used as a model reaction to evaluate the photocatalytic activity of the composites. When the additive amount of chitosan is 0.25 g, the sample Cts/TiO2-25 possesses the highest activity, which is over 4.8 times of N-TiO2. The detection of active species during the photocatalytic process shows that superoxide radicals (O-2(center dot-)) play the most important role, then the probable degradation mechanism of the photocatalysts is proposed simultaneously. It is hoped that our work will open a new doorway to use a simple and green method to get high-efficiency TiO2-based photocatalysts. (C) 2015 Elsevier B.V. All rights reserved.
Keyword ：
Carbon species decorated Carbon species decorated Chitosan Chitosan Nitrogen doped Nitrogen doped Photocatalytic degradation Photocatalytic degradation TiO2 TiO2
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| GB/T 7714 | Shao, Yu , Cao, Changsheng , Chen, Shiliang et al. Investigation of nitrogen doped and carbon species decorated TiO2 with enhanced visible light photocatalytic activity by using chitosan [J]. | APPLIED CATALYSIS B-ENVIRONMENTAL , 2015 , 179 : 344-351 . |
| MLA | Shao, Yu et al. "Investigation of nitrogen doped and carbon species decorated TiO2 with enhanced visible light photocatalytic activity by using chitosan" . | APPLIED CATALYSIS B-ENVIRONMENTAL 179 (2015) : 344-351 . |
| APA | Shao, Yu , Cao, Changsheng , Chen, Shiliang , He, Miao , Fang, Jialin , Chen, Jing et al. Investigation of nitrogen doped and carbon species decorated TiO2 with enhanced visible light photocatalytic activity by using chitosan . | APPLIED CATALYSIS B-ENVIRONMENTAL , 2015 , 179 , 344-351 . |
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A highly ordered ZnO/TiO2 photonic crystal (ZnO/TiO2-PC) was obtained by a simply pyrolysis strategy. Combined with a series of characterizations, including scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and transmittance spectra, it was found that the in situ formed ZnO phases were uniformly grafted to TiO2-PC framework forming hybrid nanostructure. Additionally, the formation of heterojunction between ZnO and TiO2-PC enhanced the separation efficiency of photogenerated electron-hole pairs, which significantly improved the photocatalytic performances. Based on the results of photoelectrochemical measurement and the detection of active species in photocatalytic degradation process, the photocatalytic degradation mechanism of ZnO/TiO2-PC nanocomposite was proposed. It is hoped that our work could provide a good insight into the preparation of photonic crystal heterostructures for the environmental purification. (C) 2015 Elsevier B.V. All rights reserved.
Keyword ：
Active species Active species Heterostructures Heterostructures Photocatalysis Photocatalysis TiO2 photonic crystal TiO2 photonic crystal ZnO nanoparticles ZnO nanoparticles
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| GB/T 7714 | Zheng, Xiuzhen , Li, Danzhen , Li, Xiaofang et al. Construction of ZnO/TiO2 photonic crystal heterostructures for enhanced photocatalytic properties [J]. | APPLIED CATALYSIS B-ENVIRONMENTAL , 2015 , 168 : 408-415 . |
| MLA | Zheng, Xiuzhen et al. "Construction of ZnO/TiO2 photonic crystal heterostructures for enhanced photocatalytic properties" . | APPLIED CATALYSIS B-ENVIRONMENTAL 168 (2015) : 408-415 . |
| APA | Zheng, Xiuzhen , Li, Danzhen , Li, Xiaofang , Chen, Jing , Cao, Changsheng , Fang, Jialin et al. Construction of ZnO/TiO2 photonic crystal heterostructures for enhanced photocatalytic properties . | APPLIED CATALYSIS B-ENVIRONMENTAL , 2015 , 168 , 408-415 . |
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