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学者姓名：祝淑颖
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Abstract ：
"双液系气-液相图的绘制"是重要的物理化学基础实验,然而其传统教学中所用的单温沸点仪在相图测绘中存在分馏效应、气相温度无法直接测量、相平衡过程无法监测等问题,导致所绘制气-液T-x相图失真.针对上述问题,提出了温度补偿校正方法,研制了带有温度补偿功能的双温沸点仪,并将其应用于"双液系气-液相图的绘制"实验教学实践.实践结果表明,应用新型双温沸点仪能有效监测气-液两相平衡建立过程,并消除了分馏效应,所绘相图准确.该双温沸点仪的设计和应用,有利于提升学生对气-液相图实验原理的理解,启发学生勤于思考,利用所学知识解决复杂问题的能力.
Keyword ：
双温沸点仪 双温沸点仪 温度补偿 温度补偿 物理化学实验 物理化学实验
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| GB/T 7714 | 祝淑颖 , 郑欧 , 吴舒婷 et al. 新型双温沸点仪研制及其在物理化学实验教学中应用 [J]. | 实验室研究与探索 , 2024 , 43 (12) : 123-126 . |
| MLA | 祝淑颖 et al. "新型双温沸点仪研制及其在物理化学实验教学中应用" . | 实验室研究与探索 43 . 12 (2024) : 123-126 . |
| APA | 祝淑颖 , 郑欧 , 吴舒婷 , 孙燕琼 , 李奕 , 林子俺 . 新型双温沸点仪研制及其在物理化学实验教学中应用 . | 实验室研究与探索 , 2024 , 43 (12) , 123-126 . |
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Visible-light-driven N-2 reduction into NH3 in pure H2O provides an energy-saving alternative to the Haber-Bosch process for ammonia synthesizing. However, the thermodynamic stability of N equivalent to N and low water solubility of N-2 remain the key bottlenecks. Here, we propose a solution by developing a WO3-x hollow sphere with oxygen vacancies. Experimental analysis reveals that the hollow sphere structure greatly promotes the enrichment of N-2 molecules in the inner cavity and facilitates the chemisorption of N-2 onto WO3-x-HS. The outer layer's thin shell facilitates the photogenerated charge transfer and the full exposure of O vacancies as active sites. O vacancies exposed on the surface accelerate the activation of N equivalent to N triple bonds. As such, the optimized catalyst shows a NH3 generation rate of 140.08 mu mol g(-1) h(-1), which is 7.94 times higher than the counterpart WO3-bulk.
Keyword ：
hollow sphere hollow sphere N-2 reduction N-2 reduction O defect O defect photocatalysis photocatalysis WO3 WO3
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| GB/T 7714 | Xia, Yuzhou , Xia, Xinghe , Zhu, Shuying et al. Synergistic Spatial Confining Effect and O Vacancy in WO3 Hollow Sphere for Enhanced N2 Reduction [J]. | MOLECULES , 2023 , 28 (24) . |
| MLA | Xia, Yuzhou et al. "Synergistic Spatial Confining Effect and O Vacancy in WO3 Hollow Sphere for Enhanced N2 Reduction" . | MOLECULES 28 . 24 (2023) . |
| APA | Xia, Yuzhou , Xia, Xinghe , Zhu, Shuying , Liang, Ruowen , Yan, Guiyang , Chen, Feng et al. Synergistic Spatial Confining Effect and O Vacancy in WO3 Hollow Sphere for Enhanced N2 Reduction . | MOLECULES , 2023 , 28 (24) . |
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The synergistic of organic transformation with H2 production in one redox cycle is highly desirable to achieve the full use of photogenerated holes and electrons but challenging. Herein, Lewis acid-base nanocatalysts in which Ni decorated defective ZnIn2S4 (denoted as Ni/VZIS) has been prepared through photodeposition with Zn defective ZnIn2S4 nanosheets as precursor. The Zn vacancies favors the selective deposition of Ni, enabling the co-exposure of Lewis acid Ni and Lewis base S adjacent dual active sites. In-situ FTIR results reveal the coexistence of Ni and Zn vacancy on ZnIn2S4 favored the chemisorption of benzyl alcohol. The electron-deficient Ni Lewis acid (LA) site and electron-rich S Lewis base (LB) site can act as benzyl alcohol conversion and H2 evolution sites, respectively, thus facilitating the full use of photoinduced electrons and holes. The spectroscopy and photoelectrochemical studies demonstrate the transfer and separation of photogenerated carries are also facilitated in the nanohybrids. As such, the Ni/VZIS photocatalyst show outstanding performance of photocatalytic conversion benzyl alcohol (BA) into benzaldehyde (BAD) and H2, with the optimal H2 generation rate of 81.9 mmol h-1, accompanying benzaldehyde generation rate of 73.7 mmol h-1. This work provides a profound insight into the designing of multi-functionalized nanohybrids for the full use of photoexcited electrons-holes pairs.(c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Keyword ：
H 2 production H 2 production Lewis acid-base nanocatalysts Lewis acid-base nanocatalysts Ni modification Ni modification Selective oxidation Selective oxidation Zn vacancy Zn vacancy
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| GB/T 7714 | Xia, Yuzhou , Chen, Lu , Liang, Ruowen et al. Bifunctional Lewis acid-base nanocatalysts with dual active sites for strengthened coupling of alcohol conversion and H2 evolution [J]. | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2023 , 51 : 1598-1607 . |
| MLA | Xia, Yuzhou et al. "Bifunctional Lewis acid-base nanocatalysts with dual active sites for strengthened coupling of alcohol conversion and H2 evolution" . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 51 (2023) : 1598-1607 . |
| APA | Xia, Yuzhou , Chen, Lu , Liang, Ruowen , Liu, Xiyao , Yan, Guiyang , Zhu, Shuying et al. Bifunctional Lewis acid-base nanocatalysts with dual active sites for strengthened coupling of alcohol conversion and H2 evolution . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2023 , 51 , 1598-1607 . |
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The photocatalytic reduction of CO2 into energy-intensive hydrocarbon fuels is promising to solve environment and energy issues. Here, elemental sulfur supported on ultrathin titanic acid nanosheets (S/HTO) heterostructure is designed and synthesized by loading different weight contents of elemental S on HTO nanosheets via a simple in-situ disproportionation-assembly process. The as-designed S/HTO heterostructure not only enhances light absorption and facilitates CO2 adsorption, but also significantly promotes the interfacial charge transport, and suppresses the recombination of photogenerated charge carriers. As a consequence, the as-prepared S/HTO heterostructure exhibits enhanced performance in photocatalytic CO2 reduction under simulated solar light illumination. A CH4 yield rate of 1.92 mu mol h-1 g-1 is obtained over the optimal 15S/HTO composite without the using of cocatalyst and sacrificial agent. The photoactivity is 5.4-fold and 23-fold larger than that of HTO nanosheets and blank S, respectively. In addition, the S/HTO hybrid composite also presents high stability for the production of CH4.
Keyword ：
CH 4 production CH 4 production CO 2 reduction CO 2 reduction Sulfur Sulfur Titanic acid nanosheet Titanic acid nanosheet Two-dimensional heterostructure Two-dimensional heterostructure
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| GB/T 7714 | Lu, Suwei , Liao, Wanru , Chen, Weihang et al. Elemental sulfur supported on ultrathin titanic acid nanosheets for photocatalytic reduction of CO2 to CH4 [J]. | APPLIED SURFACE SCIENCE , 2022 , 614 . |
| MLA | Lu, Suwei et al. "Elemental sulfur supported on ultrathin titanic acid nanosheets for photocatalytic reduction of CO2 to CH4" . | APPLIED SURFACE SCIENCE 614 (2022) . |
| APA | Lu, Suwei , Liao, Wanru , Chen, Weihang , Yang, Min-Quan , Zhu, Shuying , Liang, Shijing . Elemental sulfur supported on ultrathin titanic acid nanosheets for photocatalytic reduction of CO2 to CH4 . | APPLIED SURFACE SCIENCE , 2022 , 614 . |
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Heterojunction structure of the composite photocatalyst with the intimate interface and sufficient contact areas is the key to achieve superior photogenerated charge carriers migration efficiency. However, it still remains a great challenge. Herein, a novel ZnIn2S4/HNb3O8 heterojunction with a strong Nb-S bond connected 2D/2D in-plane interface is successfully fabricated via a two-step synthesis method. Due to the similarity of the chemical property, S precursors for ZnIn2S4 are preferred trapped by the O defects on HNb3O8, which induce the formation of Nb-S bond in the 2D/2D interface under the hydrothermal process. The unique 2D/2D structure endows the heterojunction with large interfacial area and the Nb-S bond as high-speed channels facilitate the interfacial electrons transfer. Furthermore, Kelvin probe test demonstrates an interfacial electric field oriented from HNb3O8 to ZnIn2S4 is formed as driving force for the interface charge transfer. As a result, the photoexcited electrons may directionally migrate across the interface, thereby promoting the photocatalytic activity. The optimal H-2 evolution amount reaches 95.2 mmol g(-1), corresponding to 10.8 times of ZnIn2S4. The in-situ construction of chemical bonded heterojunction will provide a reference for designing high-efficiency heterojunction photocatalyst. (C) 2021 The Author(s). Published by Elsevier Ltd.
Keyword ：
2D/2D heterojunction 2D/2D heterojunction H-2 generation H-2 generation Interfacial engineering Interfacial engineering Photocatalysis Photocatalysis ZnIn2S4/HNb3O8 ZnIn2S4/HNb3O8
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| GB/T 7714 | Xia, Yuzhou , Zhu, Shuying , Liang, Ruowen et al. Interfacial reconstruction of 2D/2D ZnIn2S4/HNb3O8 through Nb-S bonds for efficient photocatalytic H-2 evolution performance [J]. | MATERIALS & DESIGN , 2021 , 209 . |
| MLA | Xia, Yuzhou et al. "Interfacial reconstruction of 2D/2D ZnIn2S4/HNb3O8 through Nb-S bonds for efficient photocatalytic H-2 evolution performance" . | MATERIALS & DESIGN 209 (2021) . |
| APA | Xia, Yuzhou , Zhu, Shuying , Liang, Ruowen , Huang, Renkun , Yan, Guiyang , Liang, Shijing . Interfacial reconstruction of 2D/2D ZnIn2S4/HNb3O8 through Nb-S bonds for efficient photocatalytic H-2 evolution performance . | MATERIALS & DESIGN , 2021 , 209 . |
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The design and synthesis of a Z-schematic photocatalytic heterostructure with an intimate interface is of great significance for the migration and separation of photogenerated charge carriers, but still remains a challenge. Here, we developed an efficient Z-scheme organic/inorganic g-C3N4/LDH heterojunction by in situ growing of inorganic CoAl-LDH firmly on organic g-C3N4 nanosheet (NS). Benefiting from the two-dimensional (2D) morphology and the surface exposed pyridine-like nitrogen atoms, the g-C3N4 NS offers efficient trap sits to capture transition metal ions. As such, CoAl-LDH NS can be tightly attached onto the g-C3N4 NS, forming a strong interaction between CoAl-LDH and g-C3N4 via nitrogen-metal bonds. Moreover, the 2D/2D interface provides a high-speed channel for the interfacial charge transfer. As a result, the prepared heterojunction composite exhibits a greatly improved photocatalytic H-2 evolution activity, as well as considerable stability. Under visible light irradiation of 4 h, the optimal H-2 evolution rate reaches 1952.9 mu mol g(-1), which is 8.4 times of the bare g-C3N4 NS. The in situ construction of organic/inorganic heterojunction with a chemical-bonded interface may provide guidance for the designing of high-performance heterostructure photocatalysts.
Keyword ：
chemically bonded interface chemically bonded interface g-C3N4/LDH g-C3N4/LDH heterojunction heterojunction Z-scheme Z-scheme
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| GB/T 7714 | Xia, Yuzhou , Liang, Ruowen , Yang, Min-Quan et al. Construction of Chemically Bonded Interface of Organic/Inorganic g-C3N4/LDH Heterojunction for Z-Schematic Photocatalytic H2 Generation [J]. | NANOMATERIALS , 2021 , 11 (10) . |
| MLA | Xia, Yuzhou et al. "Construction of Chemically Bonded Interface of Organic/Inorganic g-C3N4/LDH Heterojunction for Z-Schematic Photocatalytic H2 Generation" . | NANOMATERIALS 11 . 10 (2021) . |
| APA | Xia, Yuzhou , Liang, Ruowen , Yang, Min-Quan , Zhu, Shuying , Yan, Guiyang . Construction of Chemically Bonded Interface of Organic/Inorganic g-C3N4/LDH Heterojunction for Z-Schematic Photocatalytic H2 Generation . | NANOMATERIALS , 2021 , 11 (10) . |
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Ultrathin TiO2 nanosheet (NST) with abundant Ti3+ sites is developed as a photocatalyst which exhibits a high yield (147.2 mu mol g(-1) h(-1)) and selectivity (96.8%) for CO2 to CH4. The results of in situ FTIR, in situ EPR and density functional theory (DFT) calculation suggest that CO2 would be selectively activated on NST surface via forming the bridging Ti center dot center dot center dot CO2-center dot center dot center dot Ti coordination species which not only lowers the activation energy barrier, but also determines the selectivity of CH4. Additionally, NST with the better separation and transfer ability for photogenerated electrons-holes can fleetly supply the electrons to CO2 molecules for high efficiently producing CH4 via the Ti-C coordination bond. Finally, a possible mechanism of the synergistic effect about coordination-activation and photocatalysis is discussed at a molecule level. This work would offer a perspective for designing an effective photocatalyst and tailoring the selectivity of products by coordination activation.
Keyword ：
Coordination activation Coordination activation Methane Methane Photoreduction CO2 Photoreduction CO2 Ultrathin TiO2 nanosheet Ultrathin TiO2 nanosheet
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| GB/T 7714 | Wang, Zhi-Wen , Wan, Qiang , Shi, Ying-Zhang et al. Selective photocatalytic reduction CO2 to CH4 on ultrathin TiO2 nanosheet via coordination activation [J]. | APPLIED CATALYSIS B-ENVIRONMENTAL , 2021 , 288 . |
| MLA | Wang, Zhi-Wen et al. "Selective photocatalytic reduction CO2 to CH4 on ultrathin TiO2 nanosheet via coordination activation" . | APPLIED CATALYSIS B-ENVIRONMENTAL 288 (2021) . |
| APA | Wang, Zhi-Wen , Wan, Qiang , Shi, Ying-Zhang , Wang, Huan , Kang, Yue-Yue , Zhu, Shu-Ying et al. Selective photocatalytic reduction CO2 to CH4 on ultrathin TiO2 nanosheet via coordination activation . | APPLIED CATALYSIS B-ENVIRONMENTAL , 2021 , 288 . |
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The difficulty of adsorption and activation of CO2 at the catalytic site and rapid recombination of photogenerated charge carriers severely restrict the CO2 conversion efficiency. Here, we fabricate a novel alkaline Co(OH)(2)-decorated ultrathin 2D titanic acid nanosheet (H2Ti6O13) catalyst, which rationally couples the structural and functional merits of ultrathin 2D supports with catalytically active Co species. Alkaline Co(OH)(2) beneficially binds and activates CO2 molecules, while monolayer H2Ti6O13 acts as an electron relay that bridges a photosensitizer with Co(OH)(2) catalytic sites. As such, photoexcited charges can be efficiently channeled from light absorbers to activated CO2 molecules through the ultrathin hybrid Co(OH)(2)/H2Ti6O13 composite, thereby producing syngas (CO/H(2)mixture) from photoreduction of CO2. High evolution rates of 56.5 mu mol h(-1) for CO and 59.3 mu mol h(-1) for H-2 are achieved over optimal Co(OH)(2)/H2Ti6O13 by visible light illumination. In addition, the CO/H-2 ratio can be facilely tuned from 1:1 to 1:2.4 by changing the Co(OH)(2) content, thus presenting a feasible approach to controllably synthesize different H-2/CO mixtures for target applications.
Keyword ：
CO2 reduction CO2 reduction Co(OH)(2) decoration Co(OH)(2) decoration H2Ti6O13 nanosheets H2Ti6O13 nanosheets photocatalysis photocatalysis syngas production syngas production
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| GB/T 7714 | Liao, Wanru , Chen, Weihang , Lu, Suwei et al. Alkaline Co(OH)(2)-Decorated 2D Monolayer Titanic Acid Nanosheets for Enhanced Photocatalytic Syngas Production from CO2 [J]. | ACS APPLIED MATERIALS & INTERFACES , 2021 , 13 (32) : 38239-38247 . |
| MLA | Liao, Wanru et al. "Alkaline Co(OH)(2)-Decorated 2D Monolayer Titanic Acid Nanosheets for Enhanced Photocatalytic Syngas Production from CO2" . | ACS APPLIED MATERIALS & INTERFACES 13 . 32 (2021) : 38239-38247 . |
| APA | Liao, Wanru , Chen, Weihang , Lu, Suwei , Zhu, Shuying , Xia, Yuzhou , Qi, Lu et al. Alkaline Co(OH)(2)-Decorated 2D Monolayer Titanic Acid Nanosheets for Enhanced Photocatalytic Syngas Production from CO2 . | ACS APPLIED MATERIALS & INTERFACES , 2021 , 13 (32) , 38239-38247 . |
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通过改装二元气液平衡系统相图绘制实验的装置,同时测定了环己烷-乙醇气液系统建立平衡时的沸点和露点温度,绘制并对比未保温、保温和温度补偿条件下的环己烷-乙醇气液相图.研究发现,由于分馏效应的存在,未保温和简易保温情况下,测得的溶液的沸点与露点两者温度均存在较大的差异,利用沸点温度绘制的气相线存在严重失真;对系统进行了温度补偿后根据沸点和露点温度绘制的两条气相线能吻合较好,即气相分馏效应得到了解决.
Keyword ：
分馏效应 分馏效应 气液相图绘制 气液相图绘制 温度补偿 温度补偿 物理化学 物理化学
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| GB/T 7714 | 宋丽平 , 王亚婷 , 郑欧 et al. 温度补偿法解决二元气液平衡系统相图绘制实验中的分馏效应 [J]. | 大学化学 , 2020 , 35 (1) : 87-91 . |
| MLA | 宋丽平 et al. "温度补偿法解决二元气液平衡系统相图绘制实验中的分馏效应" . | 大学化学 35 . 1 (2020) : 87-91 . |
| APA | 宋丽平 , 王亚婷 , 郑欧 , 吴舒婷 , 祝淑颖 , 陈建中 . 温度补偿法解决二元气液平衡系统相图绘制实验中的分馏效应 . | 大学化学 , 2020 , 35 (1) , 87-91 . |
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Photocatalytic reduction of CO2 to solar fuels has been considered as a promising route to solve the energy crisis and environmental issues. Herein, the spatially separated CoO and Au dual cocatalysts are used as the hole and electron collectors, which are loaded on the internal and external surface of TiO2 hollow sphere (THS), respectively (denoted as Aux@THS@CoO). It is found that the Au nanoparticle and Co species are homogenous deposited on the surface of THS without doping. DRS results show that the photoabsorption performances of THS are enhanced obviously in the visible light region. XPS analysis reveals that an internal electric field is constructed, which could promote the separation of photoinduced charge carriers. Subsequently, Au-2.0@THS@CoO displays the highest photocurrent density compared with the counterparts. Furthermore, the results of CO2 adsorption, ESR spectra and in-situ FTIR spectra show the high adsorption capacity of CO2 on the sample and the chemisorption of CO2 on the oxygen defects of THS conversed into the active intermediate CO2-. As a result, Au-2.0@THS@CoO presents a remarkably enhanced photocatalytic activity for the reduction of CO2 with H2O in CH4. The optimal activity of the catalyst is 13.3 mu mol h(-1) g(-1), which is 60 times higher than that of THS. In addition, in-situ FTIR spectra also suggest that H2O participates in the reaction as electron donator and hole scavenger during the photocatalysis process. Finally, a possible photocatalytic process has also been proposed.
Keyword ：
CO2 reduction CO2 reduction Dual cocatalysts Dual cocatalysts Photocatalysis Photocatalysis Spatial separation Spatial separation Synergistic effect Synergistic effect
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| GB/T 7714 | Zhu, Shuying , Liao, Wanru , Zhang, Mingyi et al. Design of spatially separated Au and CoO dual cocatalysts on hollow TiO2 for enhanced photocatalytic activity towards the reduction of CO2 to CH4 [J]. | CHEMICAL ENGINEERING JOURNAL , 2019 , 361 : 461-469 . |
| MLA | Zhu, Shuying et al. "Design of spatially separated Au and CoO dual cocatalysts on hollow TiO2 for enhanced photocatalytic activity towards the reduction of CO2 to CH4" . | CHEMICAL ENGINEERING JOURNAL 361 (2019) : 461-469 . |
| APA | Zhu, Shuying , Liao, Wanru , Zhang, Mingyi , Liang, Shijing . Design of spatially separated Au and CoO dual cocatalysts on hollow TiO2 for enhanced photocatalytic activity towards the reduction of CO2 to CH4 . | CHEMICAL ENGINEERING JOURNAL , 2019 , 361 , 461-469 . |
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