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Chinese Journal of Structural Chemistry 2022年第1期41卷 7-13页

作者： Shitong Han Bifang Li Lijuan Huang Hailing Xi zhengxin ding Jinlin Long State Key Laboratory of NBC Protection for Civilian Beijing 102205China State Key Laboratory of Photocatalysis on Energy and Environment College of ChemistryFuzhou UniversityFuzhou 3500116China

ZnIn_(2)S_(4) has emerged in water splitting and degradation of dyes due to its good stability and light absorption ***,there are still few reports of CO_(2) ***,we successfully synthesized ZnIn_(2)S_(4) and obtained a series of ZnIn_(2)S_(4)-CdIn_(2)S_(4) heterostructured microspheres through the ion exchange method,and first used them in photocatalytic CO_(2) reduction in noble-metal-free *** activity results showed that these ZnIn_(2)S_(4)-CdIn_(2)S_(4) photocatalysts exhibit excellent catalytic activity under visible light,and the best CO yield is as high as 33.57μmol・h^(-1) with a selectivity of 91%.Furthermore,the stability and reusability of ZnIn_(2)S_(4)-CdIn_(2)S_(4) was firmly confirmed by diverse characterizations,including X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray photoelectron spectroscopy(XPS),energy-dispersive X-ray spectroscopy(EDX)and N2 adsorption measurements.

关键词： CO_(2)RR visible light photocatalysis heterojunction CdIn_(2)S_(4)

S-scheme CoTiO_(3)/Cd_(9.51)Zn_(0.49)S_(10)heterostructures for visible-light driven photocatalytic CO_(2) reduction

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Journal of Materials Science & Technology 2022年第29期124卷 164-170页

作者： Bo Su Haowei Huang zhengxin ding Maarten B.J.Roeffaers Sibo Wang Jinlin Long State Key Lab of Photocatalysis on Energy and Environment College of Chemistry Fuzhou UniversityFuzhou 350108China cMACS Department of Microbial and Molecular SystemsKU LeuvenCelestijnenlaan 200FLeuven 3001Belgium

CdZnS solid solutions with strong light absorption are promising materials for solar-driven COreduction;however,their relatively weak redox ability and intrinsic photo-corrosion limit their further development as a *** addition of a second photocatalyst with a suitable band structure to construct a S-scheme photocatalytic system can solve both problems ***,we report a S-scheme photocatalyst based on the heterostructure of CoTiO_(3)/CdZnS(abbreviated as CoTiO_(3)/Cd_(9.51)Zn_(0.49)S_(10))that enables the efficient photocatalytic reduction of *** physicochemical characterization resolves the S-scheme charge transfer mechanism in this composite *** the well-designed structure of particles and desirable band offsets,this hybrid system offers visible light absorption in a broad spectral region,large surface area,strong redox ability,and fast carrier separation and *** visible-light illumination,the CoTiO_(3)/Cd Zn S hybrid system displays a CO formation rate of about 11 mmol hgcombined with a long-term operational ***,a high apparent quantum efficiency(AQE)of 7.27%is realized for the CO_(2)-to-CO reduction reaction by the optimized Co TiO/Cd Zn S hybrid under 420 nm monochromatic light irradiation.

关键词： Photocatalysis CO_(2)reduction S-scheme Metal sulfides Heterostructure

Position-selected cocatalyst modification on a Z-scheme Cd_(0.5)Zn_(0.5)S/NiTiO_(3) photocatalyst for boosted H_(2) evolution

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Materials Reports(Energy) 2023年第4期3卷 52-59页

作者： Bifang Li Wenyu Guo Xue Feng Lu Yidong Hou zhengxin ding Sibo Wang State Key Laboratory of Photocatalysis on Energy and Environment College of ChemistryFuzhou UniversityFuzhouFujian350116PR China

Photocatalytic water splitting by semiconductors is a promising technology to produce clean H_(2) fuel,but the efficiency is restrained seriously by the high overpotential of the H_(2)-evolution reaction together with the high recombination rate of photoinduced *** enhance H_(2) production,it is highly desirable yet challenging to explore an efficient reductive cocatalyst and place it precisely on the right sites of the photocatalyst surface to work the proton reduction reaction ***,the metalloid NixP cocatalyst is exactly positioned on the Z-scheme Cd_(0.5)Zn_(0.5)S/NiTiO_(3)(CZS/NTO)heterostructure through a facile photodeposition strategy,which renders the cocatalyst form solely at the electron-collecting *** is revealed that the directional transfer of photoexcited electrons from Cd_(0.5)Zn_(0.5)S to Ni_(x)P suppresses the quenching of charge *** visible light,the CZS/NTO hybrid loaded with the Ni_(x)P cocatalyst exhibits an optimal H_(2) yield rate of 1103μmol h^(-1)(i.e.,27.57 mmol h^(-1)g^(-1)),which is about twofold of pristine CZS/NTO and comparable to the counterpart deposited with the Pt ***,the high apparent quantum yield(AQY)of 56%is reached at 400 ***,the mechanisms of the cocatalyst formation and the H2 generation reaction are discussed in detail.

关键词： Photocatalysis Ni_(x)P Cocatalysts Z-scheme H_(2)evolution

Selectively converting CO_(2) to HCOOH on Cu-alloys integrated in hematite-driven artificial photosynthetic cells

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Journal of Energy Chemistry 2023年第4期79卷 601-610页

作者： Jiwu Zhao Liang Huang Lan Xue Zhenjie Niu Zizhong Zhang zhengxin ding Rusheng Yuan Xu Lu Jinlin Long State Key Laboratory of Photocatalysis on Energy and Environment College of ChemistryFuzhou UniversityFuzhou 350116FujianChina Clean Combustion Research Center(CCRC) Division of Physical Sciences and EngineeringKing Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Saudi Arabia

The integration of electrochemical CO_(2)reduction(CO_(2)RR) and photoelectrochemical water oxidation offers a sustainable access to valuable chemicals and fuels. Here, we develop a rapidly annealed hematite photoanode with a photocurrent density of 2.83 mA cm^(-2)at 1.7 VRHEto drive the full-reaction. We also present Cu-alloys electrocatalysis extended from CuInSnS4, which are superior in both activity and selectivity for CO_(2)RR. Specifically, the screened CuInSn achieves a CO_(2)to HCOOH Faradaic efficiency of 93% at a cell voltage of-2.0 V by assembling into artificial photosynthesis cell. The stability test of IT exhibits less than 3% degradation over 24 h. Furthermore, in-situ Raman spectroscopy reveals that both CO_(3)^(-2)and CO_(2)are involved in CO_(2)RR as reactants. The preferential affinity of C for H in the ^(*)HCO_(2)intermediate enables an improved HCOOH-selectivity, highlighting the role of multifunctional Cu in reducing the cell voltage and enhancing the photocurrent density.

关键词： CO_(2)reduction Rapid annealing Fe_(2)O_(3)photoanode CuInSnS_(4) In-situ spectroscopy

Highly selective photocatalytic reduction of CO_(2) to CH_(4) on electron-rich Fe species cocatalyst under visible light irradiation

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Carbon Energy 2024年第1期6卷 255-266页

作者： Qianying Lin Jiwu Zhao Pu Zhang Shuo Wang Ying Wang Zizhong Zhang Na Wen zhengxin ding Rusheng Yuan Xuxu Wang Jinlin Long State Key Laboratory of Photocatalysis on Energy and Environment College of ChemistryFuzhou UniversityFuzhouChina

Efficient photocatalytic reduction of CO_(2) to high-calorific-value CH4,an ideal target product,is a blueprint for C_(1)industry relevance and carbon neutrality,but it also faces great ***,we demonstrate unprecedented hybrid SiC photocatalysts modified by Fe-based cocatalyst,which are prepared via a facile impregnation-reduction method,featuring an optimized local electronic *** exhibits a superior photocatalytic carbon-based products yield of 30.0μmol g^(−1) h^(−1) and achieves a record CH_(4) selectivity of up to 94.3%,which highlights the effectiveness of electron-rich Fe cocatalyst for boosting photocatalytic performance and ***,the synergistic effects of directional migration of photogenerated electrons and strongπ-back bonding on low-valence Fe effectively strengthen the adsorption and activation of reactants and intermediates in the CO_(2)→CH_(4) *** study inspires an effective strategy for enhancing the multielectron reduction capacity of semiconductor photocatalysts with low-cost Fe instead of noble metals as cocatalysts.

关键词： artificial synthesis of CH_(4) electronic structure optimization Fe species cocatalyst photocatalytic CO_(2) reduction SiC

Superposition of dual electric fields in covalent organic frameworks for efficient photocatalytic hydrogen evolution

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Chinese Journal of Catalysis 2024年第8期63卷 164-175页

作者： Chao Li Shuo Wang Yuan Liub Xihe Huang Yan Zhuang Shuhong Wu Ying Wang Na Wen Kaifeng Wu zhengxin ding Jinlin Long State Key Laboratory of Photocatalysis on Energy and Environment College of ChemistryFuzhou UniversityFuzhou 350116FujianChina State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 110623LiaoningChina College of Chemistry Fuzhou UniversityFuzhou 350116FujianChina

Covalent organic frameworks(COFs)are promising materials for converting solar energy into green ***,limited charge separation and transport in COFs impede their application in the photocatalytic hydrogen evolution reaction(HER).In this study,the intrinsically tunable internal bond electric field(IBEF)at the imine bonds of COFs was manipulated to cooperate with the internal molecular electric field(IMEF)induced by the donor-acceptor(D-A)structure for an efficient *** aligned orientation of IBEF and IMEF resulted in a remarkable H_(2) evolution rate of 57.3 mmol·g^(-1)·h^(-1)on TNCA,which was approximately 520 times higher than that of TCNA(0.11 mmol·g^(-1)·h^(-1))with the opposing electric field *** superposition of the dual electric fields enables the IBEF to function as an accelerating field for electron transfer,kinetically facilitat-ing the migration of photogenerated electrons from D to ***,theoretical calculations indicate that the inhomogeneous charge distribution at the C and N atoms in TNCA not only pro-vides a strong driving force for carrier transfer but also effectively hinders the return of free elec-trons to the valence band,improving the utilization of *** strategy of fabricating dual electric fields in COFs offers a novel approach to designing photocatalysts for clean energy synthesis.

关键词： Covalent organic framework Internal molecular electric field Internal bond electric field Photocatalysis Hydrogen evolution

二氧化钛基固体超强酸的结构及其光催化氧化性能

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催化学报 1999年第3期20卷 321-324页

作者：付贤智丁正新苏文悦李旦振福州大学光催化研究所福州350002 福州大学电子科学与应用物理系福州350002

采用溶胶凝胶法制备了多孔性、大比表面积的ＳＯ２－４／ＴｉＯ２固体超强酸催化剂，运用ＸＲＤ，ＢＥＴ比表面积测定，ＸＰＳ和ＵＶ Ｖｉｓ反射光谱等技术对该催化 ... 详细信息

采用溶胶凝胶法制备了多孔性、大比表面积的ＳＯ２－４／ＴｉＯ２固体超强酸催化剂，运用ＸＲＤ，ＢＥＴ比表面积测定，ＸＰＳ和ＵＶ Ｖｉｓ反射光谱等技术对该催化剂的结构、表面状态以及半导体特性进行了表征，并通过ＣＨ３Ｂｒ，Ｃ６Ｈ６和Ｃ２Ｈ４等典型有机物的气相光催化氧化反应，考察了ＳＯ２－４／ＴｉＯ２催化剂的光催化反应性能．结果表明，ＳＯ２－４／ＴｉＯ２催化剂具有较高的结构稳定性，ＴｉＯ２的超强酸化有效地抑制了晶相转变、晶粒度增加和比表面积下降．与ＴｉＯ２相比，ＳＯ２－４／ＴｉＯ２的吸收边蓝移及禁带宽度增加，产生了较大的氧化还原势，导致光催化效率提高．

关键词：二氧化钛硫酸固体超强酸光催化氧化污染防治

空心NiCo_(2)S_(4)纳米球助催化剂担载ZnIn_(2)S_(4)纳米片用于可见光催化制氢

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物理化学学报 2022年第7期38卷 56-65页

作者：熊壮侯乙东员汝胜丁正新王伟俊汪思波福州大学化学学院能源与环境光催化国家重点实验室福州350116 马来西亚厦门大学能源与化学工程学院 Selangor Darul Ehsan 43900马来西亚厦门大学化学化工学院福建厦门361005

纳米片与空心球上之间的合理界面调控是开发高效太阳能制氢光催化剂的潜在策略。在各类光催化材料中,金属硫化物由于具有相对较窄的带隙和优越的可见光响应能力而被广泛研究。ZnIn_(2)S_(4)是一种层状的三元过渡金属半导体光催化剂,其... 详细信息

纳米片与空心球上之间的合理界面调控是开发高效太阳能制氢光催化剂的潜在策略。在各类光催化材料中,金属硫化物由于具有相对较窄的带隙和优越的可见光响应能力而被广泛研究。ZnIn_(2)S_(4)是一种层状的三元过渡金属半导体光催化剂,其带隙可控(约2.4 eV)。在众多金属硫化物光催化剂中,ZnIn_(2)S_(4)引起了广泛兴趣。然而,单纯的ZnIn_(2)S_(4)光催化活性仍然相对较差,主要是因为光生载流子的复合率较高、迁移速率较慢。在半导体光催化剂上负载助催化剂是提升光催化剂性能的一种有效方法,因为它不仅可以加速光生电子和空穴的分离,而且还可以降低质子还原反应的活化能。作为一种三元过渡金属硫化物,NiCo_(2)S_(4)表现出较高的导电性、较低的电负性、丰富的氧化还原特性以及优越的电催化活性。这些特性表明,NiCo_(2)S_(4)可以作为光催化制氢的助催化剂,以加速电荷分离和转移。此外,NiCo_(2)S_(4)和ZnIn_(2)S_(4)都属于三元尖晶石的晶体结构,这可能有助于构建具有紧密界面接触的NiCo_(2)S_(4)/ZnIn_(2)S_(4)复合物,从而提高光催化性能。本文中,将超薄ZnIn_(2)S_(4)纳米片原位生长到非贵金属助催化剂NiCo_(2)S_(4)空心球上,形成具有强耦合界面和可见光吸收的NiCo_(2)S_(4)@ZnIn_(2)S_(4)分级空心异质结构光催化剂。最优NiCo_(2)S_(4)@ZnIn_(2)S_(4)复合样品(NiCo_(2)S_(4)含量:ca.3.1%)的析氢速率高达78μmol·h−1,约是纳米片组装ZnIn_(2)S_(4)光催化剂析氢速率的9倍、约是1%(w,质量分数)Pt/ZnIn_(2)S_(4)样品析氢速率的3倍。此外,该复合光催化剂在反应中表现出良好的稳定性。荧光和电化学测试结果表明,NiCo_(2)S_(4)空心球是一种有效的助催化剂,可促进光生载流子的分离和传输,并降低析氢反应的活化能。最后,提出了NiCo_(2)S_(4)@ZnIn_(2)S_(4)光催化析氢的可能反应机理。在NiCo_(2)S_(4)@ZnIn_(2)S_(4)复合光催化剂中,具有高导电性的NiCo_(2)S_(4)助催化剂可快速接受ZnIn_(2)S_(4)上的光生电子,用以还原质子生成氢气,而电子牺牲剂TEOA捕获光生空穴,进而完成光催化氧化还原循环。该研究有望为基于纳米片为次级结构的分级空心异质结光催化剂的设计合成及其光催化制氢研究提供一定的指导。

关键词：光催化产氢助催化剂金属硫化物

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Rock fracture mechanism of buffer blasting with cushion layer at the borehole bottom

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 325-334页

作者： Xinguang Zhu Chenxi ding Zhe Sui Hong Su Xu Guo School of Civil and Resources Engineering University of Science and Technology BeijingBeijing 100083China Key Laboratory for Mechanics in Fluid Solid Coupling Systems Institute of MechanicsChinese Academy of SciencesBeijing 100190China School of Mechanics and Civil Engineering China University of Mining and Technology(Beijing)Beijing 100083China School of Chemical and Blasting Engineering Anhui University of Science and TechnologyHuainan 232001China

This study primarily investigates the rock fracture mechanism of bottom cushion layer blasting and explores the effects of the bottom cushion layer on rock *** involves analyses of the evolution patterns of blasting stress,characteristics of crack distribution,and rock fracture features in the ***,blasting model experiments were carried out using the dynamic caustics principle to investigate the influence of bottom cushion layers and initiation methods on the integrity of the bottom rock *** experimental results indicate that the combined use of bottom cushion layers and inverse initiation effectively protects the integrity of the bottom rock ***,the process of stress wave propagation and dynamic crack propagation in rocks was simulated using the continuum-discontinuum element method(CDEM)and the Landau explosion source model,with varying thicknesses of bottom cushion *** numerical simulation results indicate that with increasing cushion thickness,the absorption of energy generated by the explosion becomes more pronounced,resulting in fewer cracks in the bottom rock *** illustrates the positive role of the cushion layer in protecting the integrity of the bottom rock mass.

关键词： bottom cushion layer blasting crack propagation continuum-discontinuum element method dynamic stress intensity factor

Magnesium lithospermate B reduces inflammatory response in a mouse model of hepatic ischemia-reperfusion injury

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Magnesium lithospermate B reduces inflammatory response in a...