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学者姓名：黄彩进
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Abstract ：
Sluggish hole transfer and the resulting pronounced charge recombination hinder the efficiency of photocatalytic overall water splitting. Herein, we present Si quantum dots (SiQDs) as hole transporter to construct SiQDs/Cu-doped ZnIn2S4 heterojunction photocatalysts (Cu0.48SZ) for overall water splitting. Under visible light illumination, Cu0.48SZ exhibits highly stable overall water-splitting activity of 210 μmol g−1 h−1 H2 and 97 μmol g−1 h−1 O2 with an apparent quantum yield (AQY) of 2.57 % at 420 nm. Results demonstrate that the synergy of SiQDs and Cu doping enhances carrier-separation efficiency and reduce surface kinetic barriers, leading to high photocatalytic performance. The presence of SiQDs effectively accelerates the transfer of photoexcited holes and avoids the self-oxidation of ZnIn2S4, favoring water oxidation. The Cu doping increases the electron density around the S atoms of ZnIn2S4 and thus promotes water reduction. This work extends the application of SiQDS as efficient hole transporter for photocatalytic overall water splitting. © 2024 Elsevier B.V.
Keyword ：
Copper Copper Efficiency Efficiency Heterojunctions Heterojunctions Indium compounds Indium compounds Photocatalytic activity Photocatalytic activity Semiconductor quantum dots Semiconductor quantum dots Silicon Silicon Silicon compounds Silicon compounds Zinc compounds Zinc compounds
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| GB/T 7714 | Shi, Wenwen , Ge, Baoxin , Jiang, Pengyang et al. SiQDs-mediated highly efficient hole transfer for photocatalytic overall water splitting over Cu-doped ZnIn2S4 [J]. | Applied Catalysis B: Environmental , 2024 , 354 . |
| MLA | Shi, Wenwen et al. "SiQDs-mediated highly efficient hole transfer for photocatalytic overall water splitting over Cu-doped ZnIn2S4" . | Applied Catalysis B: Environmental 354 (2024) . |
| APA | Shi, Wenwen , Ge, Baoxin , Jiang, Pengyang , Wang, Qiaoyun , He, Lifeng , Huang, Caijin . SiQDs-mediated highly efficient hole transfer for photocatalytic overall water splitting over Cu-doped ZnIn2S4 . | Applied Catalysis B: Environmental , 2024 , 354 . |
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The orbital hybridization between metal and oxygen of perovskite catalysts can lower the overpotential and enhance the oxygen evolution reaction (OER) activity. This study combines density functional theory with experiments to clarify how Sr/Fe codoping modulates orbital hybridization and enhances OER catalytic activity of LaCoO3. The as-prepared La0.50Sr0.50Co0.75Fe0.25O3 shows remarkable performance with a low overpotential of 310 mV at 10 mA cm(-2) current density and a 107.03 mV dec(-1) Tafel slope, outperforming most state-of-the-art perovskite-based OER electrocatalysts. The experimental results confirm that Sr/Fe codoping enhances the expansion of Co-O-Co bond angles and strengthens the covalency of the Co-O bond in LaCoO3, leading to enhanced electrocatalytic activity. Moreover, increasing Sr doping reduces the distance between the Co 3d/O 2p center and the Fermi level, decreasing the energy difference between them and enhancing the degree of orbital hybridization between Co 3d and O 2p. As the degree of Co 3d/O 2p orbital hybridization increases, a higher charge transfer was found between the active center and intermediate product, OOH, reducing the energy barrier of the rate-determining step while lowering the overpotential. This study provides thorough insight into the rational design of OER catalysts based on orbital hybridization.
Keyword ：
Co 3d/O 2p orbital hybridization Co 3d/O 2p orbital hybridization Co-O-Cobond angle Co-O-Cobond angle DFT prediction DFT prediction LaCoO3 LaCoO3 oxygenevolution reaction oxygenevolution reaction Zn-air batteries Zn-air batteries
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| GB/T 7714 | Ge, Baoxin , Jiang, Pengyang , Chen, Biyi et al. Controlling Co 3d/O 2p Orbital Hybridization in LaCoO3 by Modulating the Co-O-Co Bond Angle for Enhanced Oxygen Evolution Reaction Catalysis [J]. | ACS CATALYSIS , 2024 , 15 (1) : 477-486 . |
| MLA | Ge, Baoxin et al. "Controlling Co 3d/O 2p Orbital Hybridization in LaCoO3 by Modulating the Co-O-Co Bond Angle for Enhanced Oxygen Evolution Reaction Catalysis" . | ACS CATALYSIS 15 . 1 (2024) : 477-486 . |
| APA | Ge, Baoxin , Jiang, Pengyang , Chen, Biyi , Huang, Caijin . Controlling Co 3d/O 2p Orbital Hybridization in LaCoO3 by Modulating the Co-O-Co Bond Angle for Enhanced Oxygen Evolution Reaction Catalysis . | ACS CATALYSIS , 2024 , 15 (1) , 477-486 . |
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Interfacial charge-transfer efficiency determines the photoelectrochemical (PEC) performance of Fe2O3-based heterojunction photoanodes. Herein, we present Fe2O3 nanoarrays coated by CoFe bimetal organic framework (CoFe-MOF) nanolayers (CoFe-MOF/F) via in-situ solvothermal method. The resulting CoFe-MOF/F photoanode has a current density of 2.2 mA cm- 2 at 1.23 V vs. RHE, which is about 2.2 times that of pristine Fe2O3. Moreover, the CoFe-MOF/F photoanode shows a negative shift of onset potential, and excellent long-term PEC stability. The in-situ synthesized CoFe-MOF on the photoanode surface enhances the interaction force between the photoanode and the photoanode and strengthen the interface binding, therefore, the interface defects are reduced and the transfer efficiency of interfacial carriers increases, wich effectively improve the performance of the photoanode. This work provides an in- situ strategy for enhancing the binding force between the cocatalyst and the photoanode to improve the PEC performance of the photoelectrode. This approach is not only effective but also scalable, offering the prospect of optimizing the performance of a wide range of photoanode materials.
Keyword ：
Hematite Hematite Heterojunction Heterojunction Interfacial binding Interfacial binding
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| GB/T 7714 | Li, Zhijie , Yi, Huimin , Jiang, Pengyang et al. Interfacial binding-enhanced charge transport for CoFe-MOF/Fe2O3 photoanodes with excellent PEC performance [J]. | APPLIED SURFACE SCIENCE , 2024 , 681 . |
| MLA | Li, Zhijie et al. "Interfacial binding-enhanced charge transport for CoFe-MOF/Fe2O3 photoanodes with excellent PEC performance" . | APPLIED SURFACE SCIENCE 681 (2024) . |
| APA | Li, Zhijie , Yi, Huimin , Jiang, Pengyang , Ge, Baoxin , Huang, Caijin . Interfacial binding-enhanced charge transport for CoFe-MOF/Fe2O3 photoanodes with excellent PEC performance . | APPLIED SURFACE SCIENCE , 2024 , 681 . |
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Tuning surface termination can improve the carrier dynamics and photoredox performance of photocatalysts by modifying the surface physicochemical properties. Herein, we prepared a Si photocatalyst by magnesium-thermal reduction and then treated it with trifluoroacetic acid (TFA). The as-obtained TFA-terminated Si photocatalyst (TFA-Si) improves double-layer capacitance and electrochemical/Brunauer-Emmet-Teller surface area, rendering more active sites. Moreover, the TFA modification causes an increase in wettability, charge carrier density, and photocurrent and a reduction in electrochemical impedance and overpotential, which enhances the adsorption/reduction of water molecules and the photoexcited-carrier dynamics for photocatalysis. TFA-Si shows high photocatalytic H2 evolution activity (1827 mu mol center dot g-1 center dot h-1) in pure water under visible light. The AQY of TFA-Si reached 6.1% at 400 nm. Interestingly, TFA molecules promote the oxidation capacity of Si photocatalysts for water oxidation through a hole transfer pathway, boosting its activity and stability. This work broadens the applications of Si-based materials for use in photocatalysis.
Keyword ：
hydrogen production hydrogen production photocatalysis photocatalysis silicon silicon stability stability TFA TFA
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| GB/T 7714 | Shao, Juan , Cheng, Chuchu , Xing, Fangshu et al. Surface Termination Tuning Photoexcited-Carrier Dynamics and Carrier Transfer Pathway on Silicon for High-Performance Photocatalytic H2 Evolution from Pure Water [J]. | ACS APPLIED ENERGY MATERIALS , 2023 , 6 (2) : 1056-1065 . |
| MLA | Shao, Juan et al. "Surface Termination Tuning Photoexcited-Carrier Dynamics and Carrier Transfer Pathway on Silicon for High-Performance Photocatalytic H2 Evolution from Pure Water" . | ACS APPLIED ENERGY MATERIALS 6 . 2 (2023) : 1056-1065 . |
| APA | Shao, Juan , Cheng, Chuchu , Xing, Fangshu , Shi, Wenwen , Tang, Jing , Li, Ze et al. Surface Termination Tuning Photoexcited-Carrier Dynamics and Carrier Transfer Pathway on Silicon for High-Performance Photocatalytic H2 Evolution from Pure Water . | ACS APPLIED ENERGY MATERIALS , 2023 , 6 (2) , 1056-1065 . |
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Coal is a readily available and inexpensive material. However, its direct use as a catalyst is still rare, but attractive for practical application. In this paper, coal was directly used as a catalyst for the selective oxidative dehydrogenation of propane to propene. It exhibited a high selectivity over 90% with a yield of 8.4% at a high space velocity (12,000 mL center dot(h center dot g-cat)(-1)). The productivity up to 2.84 gC(3)H(6) g(cat)(-1) h(-1) was obtained with propene selectivity above 80% (20,000 mL center dot(h center dot g-cat)(-1)). The kinetic showed first-order dependence with respect to propane or oxygen partial pressures. Meanwhile, electron paramagnetic resonance (EPR) and X-ray photoelectron spectrum (XPS) demonstrated that the carbonyl groups act as active sites for oxidative dehydrogenation of propane to propene. This work expands the use of earth-abundant and low-price coal in catalysis with expectable scale application.
Keyword ：
catalysis catalysis coal coal kinetics kinetics oxidative dehydrogenation oxidative dehydrogenation propane propane propene propene
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| GB/T 7714 | Liu, Qiuwen , Zhang, Yuhua , Wu, Yawei et al. Coal as an Effective Catalyst for Selective Oxidative Dehydrogenation of Propane to Propene [J]. | CATALYSTS , 2023 , 13 (3) . |
| MLA | Liu, Qiuwen et al. "Coal as an Effective Catalyst for Selective Oxidative Dehydrogenation of Propane to Propene" . | CATALYSTS 13 . 3 (2023) . |
| APA | Liu, Qiuwen , Zhang, Yuhua , Wu, Yawei , Song, Mingxia , Huang, Caijin . Coal as an Effective Catalyst for Selective Oxidative Dehydrogenation of Propane to Propene . | CATALYSTS , 2023 , 13 (3) . |
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It is very essential to grow efficient and abundant photocatalysts for overall water cracking to produce hydrogen. Ni3FeN nanosheets were synthesized by combining simple sol-gel and calcining methods using urea as nitrogen source. A heterostructure was constructed between Ni3FeN and g-C3N4 to enhance the absorption capacity of visible light. The reformed Z-scheme Ni3FeN/g-C3N4 heterojunction exhibited an excellent visible-light photocatalytic activity. The average hydrogen evolution rate of 5 wt% Ni3FeN/g-C3N4 composite is 528.7 mu mol h(-1) g(-1) due to the Z-scheme Ni3FeN/g-C3N4 junction, which promotes the separation of photogenerated e(-)/h(+). Interestingly, the average H-2 production of Ni3FeN/g-C3N4 is nearly 8.3 and 3.6 times higher than that of Fe4N/g-C3N4 and Ni4N/g-C3N4, respectively, indicating that bimetallic nitrides as cocatalysts are more conducive to enhancing the performance of photocatalysts. Importantly, the Ni3FeN/g-C3N4 composite exhibited good cycle stability, and the hydrogen production performance hardly changed after four cycle experiments. Furthermore, photoluminescence, electrochemical impedance spectroscopy, and transient photocurrent response show that Ni3FeN/g-C3N4 heterojunction improves the separation efficiency of photoinduced e(-)/h(+). This work provides a feasibility of the cocatalyst Ni3FeN for use in photocatalytic hydrogen production.
Keyword ：
bimetallic nitride bimetallic nitride cocatalyst cocatalyst heterojunction heterojunction photocatalytic hydrogen manufacturing photocatalytic hydrogen manufacturing visible light visible light
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| GB/T 7714 | Wang, Qiaoyun , Tuerxun, Nasiman , Xiao, Lu et al. Visible-light-driven Ni3FeN/g-C3N4 Z-scheme heterostructure for remarkable photocatalytic water splitting [J]. | JOURNAL OF THE AMERICAN CERAMIC SOCIETY , 2023 , 106 (6) : 3537-3549 . |
| MLA | Wang, Qiaoyun et al. "Visible-light-driven Ni3FeN/g-C3N4 Z-scheme heterostructure for remarkable photocatalytic water splitting" . | JOURNAL OF THE AMERICAN CERAMIC SOCIETY 106 . 6 (2023) : 3537-3549 . |
| APA | Wang, Qiaoyun , Tuerxun, Nasiman , Xiao, Lu , Wang, Yu , Huang, Caijin , Du, Hong . Visible-light-driven Ni3FeN/g-C3N4 Z-scheme heterostructure for remarkable photocatalytic water splitting . | JOURNAL OF THE AMERICAN CERAMIC SOCIETY , 2023 , 106 (6) , 3537-3549 . |
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Bowl-like structures have great potential in the field of catalysis, environmental remediation, energy storage, etc., because of the large surface area, porous structure, and buffer hollow space. Herein, we developed a unique approach to control the opening direction of bowl-like structures via self-assembly strategy at the gas/liquid interface of liquid B2O3 environment foam. BN@BPO4 self-supporting monolithic foam with oriented bowl-like structure was obtained, which is built by numerous oriented bowl-like blocks and shows a double layer structure with face-to-face opening. The opening size can be adjusted by changing the amount of Cu(NO3)2 additives that is beneficial for the production of hexagonal boron nitride (h-BN). We believe the as-generated h-BN can enhance the gas trapping capacity of liquid B2O3 environment foam to precisely control pressure differential between large and small bubbles and thus favors the oriented opening of bowl-like structure. Further, pure h-BN monolithic foam with oriented bowl-like structure prepared at higher temperature possessed multimodal hier-archically porous structure and excellent performance in the catalytic oxidative dehydrogenation of propane into propene and the removal of organic pollutants. This work provides an extended assembly interface strategy of oriented bowl-like structure materials for different applications.
Keyword ：
Boron nitride Boron nitride Extended assembly interface Extended assembly interface Monolithic foam Monolithic foam Oriented bowl Oriented bowl Oxidative dehydrogenation Oxidative dehydrogenation Pollutant removal Pollutant removal
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| GB/T 7714 | Liu, Qiuwen , Yu, Hui , Liu, Qiang et al. Monolithic foam of oriented boron nitride bowl for selective oxidative dehydrogenation of propane and pollutant removal [J]. | APPLIED SURFACE SCIENCE , 2023 , 619 . |
| MLA | Liu, Qiuwen et al. "Monolithic foam of oriented boron nitride bowl for selective oxidative dehydrogenation of propane and pollutant removal" . | APPLIED SURFACE SCIENCE 619 (2023) . |
| APA | Liu, Qiuwen , Yu, Hui , Liu, Qiang , Zhang, Yibo , Qiu, Huibin , Huang, Caijin . Monolithic foam of oriented boron nitride bowl for selective oxidative dehydrogenation of propane and pollutant removal . | APPLIED SURFACE SCIENCE , 2023 , 619 . |
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The evolution of the early atmosphere was driven by changes in its chemical composition, which involved the formation of some critical gases. In this study, we demonstrate that nitrous oxide (N2O) can be produced from Miller's early atmosphere (a mixture of CH4, NH3, H-2, and H2O) by way of photocatalysis. Both NH3 and H2O were indispensable for the production of N2O by photocatalysis. Different conditions related to seawater and reaction temperature are also explored. N2O has a strong greenhouse gas effect, which is more able to warm the Earth than other gases and offers a reasonable explanation for the faint young Sun paradox on the early Earth. Moreover, the decomposition of N2O into N-2 and O-2 can be boosted by soft irradiation, providing a possible and important origin of atmospheric O-2 and N-2. The occurrence of O-2 propelled the evolution of the atmosphere from being fundamentally reducing to oxidizing. This work describes a possible vital contribution of photocatalysis to the evolution of the early atmosphere.
Keyword ：
early earth early earth faint young sun paradox faint young sun paradox nitrous oxide nitrous oxide origin of O-2 origin of O-2 photocatalysis photocatalysis
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| GB/T 7714 | Cheng, Chuchu , Xu, Fangjie , Shi, Wenwen et al. Photocatalysis: A Possible Vital Contributor to the Evolution of the Prebiotic Atmosphere and the Warming of the Early Earth [J]. | CATALYSTS , 2023 , 13 (9) . |
| MLA | Cheng, Chuchu et al. "Photocatalysis: A Possible Vital Contributor to the Evolution of the Prebiotic Atmosphere and the Warming of the Early Earth" . | CATALYSTS 13 . 9 (2023) . |
| APA | Cheng, Chuchu , Xu, Fangjie , Shi, Wenwen , Wang, Qiaoyun , Huang, Caijin . Photocatalysis: A Possible Vital Contributor to the Evolution of the Prebiotic Atmosphere and the Warming of the Early Earth . | CATALYSTS , 2023 , 13 (9) . |
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Semiconductor heterostructures effectively promote thetransferand separation of interfacial photoinduced charges for the photocatalyticprocess. Herein, we constructed a direct Z-scheme SnSe2/CdS heterojunction photocatalyst. N-type SnSe2 semiconductorsare suitable candidate materials for oxidation half-reactions in Z-schemeheterojunctions. The intimate atomic-level interfacial contact throughCd-Se bonds provides a better interfacial charge transportchannel for the photoinduced charges. Moreover, the transient Sn4+/Sn-0 centers caused by the photoredox processboost the interfacial charge transport/separation at the interface.Besides, the presence of S vacancies acting as electron enrichmentcenters further enhances the redox ability for hydrogen production.Therefore, the SnSe2/CdS heterostructure showed a superiorvisible-light photocatalytic H-2-production activity of13.6 mmol & BULL;g(-1)& BULL;h(-1) usingascorbic acid as a sacrificial agent, which is 9.7 times higher thanthat of pristine CdS. The apparent quantum yield reaches 10.5% at & lambda; = 420 nm. This work provides a useful way to improve chargetransfer in the Z-scheme heterojunction photocatalyst for hydrogenproduction.
Keyword ：
Cd-Sebond Cd-Sebond directZ-scheme system directZ-scheme system H-2 production H-2 production photocatalysis photocatalysis SnSe2 SnSe2 transient metal centers transient metal centers
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| GB/T 7714 | Zhang, Yuhua , Cheng, Chuchu , Xing, Fangshu et al. Transient Metal Centers at the Covalent Heterointerface Favor Photocatalytic Hydrogen Evolution [J]. | ACS APPLIED MATERIALS & INTERFACES , 2023 , 15 (26) : 31364-31374 . |
| MLA | Zhang, Yuhua et al. "Transient Metal Centers at the Covalent Heterointerface Favor Photocatalytic Hydrogen Evolution" . | ACS APPLIED MATERIALS & INTERFACES 15 . 26 (2023) : 31364-31374 . |
| APA | Zhang, Yuhua , Cheng, Chuchu , Xing, Fangshu , Li, Ze , Huang, Caijin . Transient Metal Centers at the Covalent Heterointerface Favor Photocatalytic Hydrogen Evolution . | ACS APPLIED MATERIALS & INTERFACES , 2023 , 15 (26) , 31364-31374 . |
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Photocatalysis offers a green and promising strategy for light-driven pollutant degradation to address water pollution. Yet, challenges in conversion efficiency and cost-efficiency propel the search for effective metal-free photocatalysts. Here, we employ a ball milling technique using organic solvent molecules to enhance the exfoliation of g-C3N4 nanosheets. Incorporating tetrahydrofuran, with its distinctive five-membered monooxygenase ring structure, endows exfoliated CN nanosheets (TCN) with remarkable electron-donating capabilities, expanding specific surface area and active sites, essential for intricate photocatalytic reactions. Comparative assessments unequivocally establish TCN's superiority, revealing a remarkable 3.6-fold enhancement in RhB dye degradation and a remarkable 99.7 % removal efficiency. TCN demonstrates rapid, complete reduction of heavy metal ions (Cr6+) under natural sunlight within 10 min and exhibits a significant 2.3-fold antibiotic degradation enhancement over pristine CN. This pioneering work unveils the mechanisms behind TCN's superior photocatalytic performance, offering insights into designing advanced photocatalysts for crucial water purification applications.
Keyword ：
Environmental remediation Environmental remediation Exfoliation Exfoliation Graphitic carbon nitride nanosheets Graphitic carbon nitride nanosheets Organic solvent functionalization Organic solvent functionalization Photoredox Photoredox
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| GB/T 7714 | Guo, Chan , Lei, Jian , Geng, Wenjing et al. Efficient pollutant removal using tetrahydrofuran functionalized carbon nitride nanosheets with enhanced photocatalytic performance [J]. | APPLIED SURFACE SCIENCE , 2023 , 649 . |
| MLA | Guo, Chan et al. "Efficient pollutant removal using tetrahydrofuran functionalized carbon nitride nanosheets with enhanced photocatalytic performance" . | APPLIED SURFACE SCIENCE 649 (2023) . |
| APA | Guo, Chan , Lei, Jian , Geng, Wenjing , Lin, Jiayao , Meng, Sugang , Ye, Sheng et al. Efficient pollutant removal using tetrahydrofuran functionalized carbon nitride nanosheets with enhanced photocatalytic performance . | APPLIED SURFACE SCIENCE , 2023 , 649 . |
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