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Mussel-inspired MXene-functionalized sponge for solar-driven water purification: Photothermal-driven crude oil absorption, solar steam generation, and photothermal sterilization

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Chemical engineering Journal 2025年 514卷

作者： Zhang, Jingwen Zhang, Xiangyi Mai, Bingjie Fu, Nuo Wang, Shuyu Shang, Bin Deng, Ziwei Key Laboratory of Applied Surface and Colloid Chemistry National Ministry of Education Shaanxi Key Laboratory for Advanced Energy Devices Shaanxi Engineering Lab for Advanced Energy Technology School of Materials Science and Engineering Shaanxi Normal University Xi'an710119 China State Key Laboratory of New Textile Materials and Advanced Processing Technologies School of Materials Science and Engineering Wuhan Textile University Wuhan430200 China

Solar-driven water purification is recognized as an effective and sustainable technology for tackling the global water crisis by utilizing clean and renewable solar energy. In this study, we present a mussel-inspired MXene-functionalized sponge (denoted as POPM sponge), which features a 3D interconnected porous structure, enhanced surface hydrophobicity, and efficient photothermal conversion capabilities. The design and fabrication of the POPM sponge involve integrating mussel-inspired hydrophobic Ti3C2Tx MXene nanosheets with a 3D interconnected porous PDMS sponge as precursors. This POPM sponge shows considerable potential as a multifunctional photothermal material to promote solar-driven water purification in complex wastewater systems. With its superior surface hydrophobicity and high photothermal conversion efficiency, this POPM sponge effectively recovers high-viscosity crude oil spills through photothermal-driven absorption. Moreover, it functions as an efficient solar evaporator, exhibiting high water evaporation rates and remarkable photothermal conversion efficiencies, thereby facilitating cost-effective solar-driven water purification in complex wastewater systems. Additionally, it possesses remarkable photothermal antibacterial characteristics for the sterilization of common pathogenic bacteria in wastewater, indicating its potential as a promising photothermal material for sterilization applications in such environments. This strategy offers a pathway for the development of multifunctional photothermal materials aimed at enhancing the efficiency of solar-driven water purification in complex wastewater systems within practical applications. © 2025 Elsevier B.V.

关键词： Sterilization (cleaning)

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Effect of extrusion ratio on microstructure and mechanical properties of AZ42 alloy sheet

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Transactions of Nonferrous Metals Society of China 2025年第4期35卷 1109-1121页

作者： Song-ke XIAO Xiao-jie ZHOU Gang ZENG Hong-chao XIAO Xin-kai KANG Xian-zheng LU Xiao-min CHEN Jian ZHANG Hunan Provincial Key Laboratory of Intelligent Manufacturing Technology for High-performance Mechanical Equipment Changsha University of Science and TechnologyChangsha 410114China Hunan Provincial Key Laboratory of Advanced Aerospace Materials CASIC(Changsha)Advanced Materials Institute Co.Ltd.Changsha 410221China Hunan Provincial Engineering Research Center of Wrought Magnesium Alloys and Surface Protection Changsha 410221China SJTU−Yibin Innovation Center for Advanced Materials Yibin 644002China

The microstructure and mechanical properties of Mg−4.5Al−2.5Zn−0.3Mn−0.2Ca(wt.%,designated as AZ42)alloys in extruded(at extrusion ratios of 28,20 and 11.5)and peak-aged states were investigated,by using optical microscopy,scanning electron microscopy,energy dispersive spectrometry and electron backscatter *** results show that extrusion produces a typical basal fiber texture and streamlines of second *** samples exhibit the lowest Schmid factor of basal slip(SFb)and the superior tensile yield strength(TYS)along extrusion direction(ED).The sample with extrusion ratio of 20 exhibits the largest average grain size,but the smallest SFb which compensates for the disadvantage of grain coarsening and maintains the *** being peak-aged at 175℃for 48 h,the sample with the extrusion ratio of 20 shows the optimal TYS along all the directions,compared to the other *** hopes to provide useful information for optimizing the deformation parameters of the AZ42 alloys.

关键词： AZ42 alloy extrusion ratio Schmid factor strength aging-hardening

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Recent progress on surface chemistryⅡ:Property and characterization

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Chinese Chemical Letters 2025年第1期36卷 8-57页

作者： Xin Li Zhen Xu Donglei Bu Jinming Cai Huamei Chen Qi Chen Ting Chen Fang Cheng Lifeng Chi Wenjie Dong Zhenchao Dong Shixuan Du Qitang Fan Xing Fan Qiang Fu Song Gao Jing Guo Weijun Guo Yang He Shimin Hou Ying Jiang Huihui Kong Baojun Li Dengyuan Li Jie Li Qing Li Ruoning Li Shuying Li Yuxuan Lin Mengxi Liu Peinian Liu Yanyan Liu Jingtao Lü Chuanxu Ma Haoyang Pan JinLiang Pan Minghu Pan Xiaohui Qiu Ziyong Shen Qiang Sun Shijing Tan Bing Wang Dong Wang Li Wang Lili Wang Tao Wang Xiang Wang Xingyue Wang Xueyan Wang Yansong Wang Yu Wang Kai Wu Wei Xu Na Xue Linghao Yan Fan Yang Zhiyong Yang Chi Zhang Xue Zhang Yang Zhang Yao Zhang Xiong Zhou Junfa Zhu Yajie Zhang Feixue Gao Yongfeng Wang Center for Carbon-based Electronics and Key Laboratory for the Physics and Chemistry of Nanodevices School of ElectronicsPeking UniversityBeijing 100871China Spin-X Institute School of MicroelectronicsSouth China University of TechnologyGuangzhou 511442China School of Materials and Energy Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage DevicesGuangdong University of TechnologyGuangzhou 510006China Faculty of Materials Science and Engineering Kunming University of Science and TechnologyKunming 650093China i-Lab CAS Key Laboratory of Nanophotonic Materials and DevicesSuzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China CAS Key Laboratory of Molecular Nanostructure and Nanotechnology CAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Sciences(BNLMS)Institute of ChemistryChinese Academy of SciencesBeijing 100190China State Key Laboratory for Organic Electronics and Information Displays&Jiangsu Key Laboratory for Biosensors Institute of Advanced MaterialsJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing University of Posts and TelecommunicationsNanjing 210023China Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123China Hefei National Research Center for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China Institute of Physics&University of Chinese Academy of Sciences Beijing 100190China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China College of Chemistry Beijing Normal UniversityBeijing 100875China Beijing National Laboratory for Molecular Sciences(BNLMS) College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China School

surface with well-defined components and structures possesses unique electronic,magnetic,optical and chemical *** a result,surface chemistry research plays a crucial role in various fields such as catalysis,energy,materials,quantum,and *** science mainly investigates the correspondence between surface property and *** probe microscopy(SPM)techniques are important tools to characterize surface properties because of the capability of atomic-scale imaging,spectroscopy and manipulation at the single-atom *** this review,we summarize recent advances in surface electronic,magnetic and optical properties characterized mainly by SPM-based *** focus on elucidating theπ-magnetism in graphene-based nanostructures,construction of spin qubits on surfaces,topology properties of surface organic structures,STM-based light emission,tip-enhanced Raman spectroscopy and integration of machine learning in SPM studies.

关键词： surface chemistry Scanning probe microscopy π-Magnetism Spin qubits Tip-enhanced Raman spectroscopy

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Laser shock peening without coating induces deeper surface integrity changes in Ti60 than mechanical shot peening

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Optics and Laser technology 2025年 189卷

作者： Yao, Yuan Lin, Xiaojing Zhao, Di Lu, Guoxin Attard, Bonnie Rochman, Arif Wang, Qiang Ji, Zhong Cassar, Glenn Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education School of Materials Science and Engineering Shandong University Shandong Jinan250061 China Institute of Engineering & Transport MCAST PLA 9032 Malta Faculty of Engineering University of Malta MSD 2080 Malta Aviation Key Laboratory of Science and Technology on Advanced Corrosion and Protection for Aviation Material AECC Beijing Institute of Aeronautical Materials Beijing100095 China

Laser shock peening (LSP) is widely recognized for enhancing surface properties such as fatigue and wear resistance. LSP without coating (LSPwC) has emerged as an attractive alternative that eliminates the need for protective coatings, simplifies processing steps, and reduces costs. However, the comparative advantages of LSPwC and conventional mechanical shot peening (SP) for titanium alloy surface enhancement remain unclear. In this study, the effects of SP and LSPwC on the residual stress distribution and deformation characteristics of Ti60 alloy are systematically compared. The results reveal that although SP generates a higher maximum compressive residual stress (−549 MPa) than LSPwC (−392 MPa), it produces a shallower compressive layer (280 μm vs. 370 μm). Analysis of the full-width at half maximum (FWHM) indicates distinct stress profiles: SP induces the most severe elastoplastic deformation at ∼50 μm depth, accompanied by a non-monotonic stress distribution, whereas LSPwC primarily affects the outermost surface. Moreover, SP provides stronger surface strengthening within ∼150 μm depth, while LSPwC—due to its lower energy input—achieves a deeper compressive residual stress layer. These findings enhance the understanding of SP and LSPwC mechanisms, providing critical insights for optimizing surface processes in industrial applications. © 2025 Elsevier Ltd

关键词： Shot peening

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Asymmetric N, P-coordinated Co single-atom catalyst for efficient oxygen reduction reaction in Zn-air batteries

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Applied Catalysis B: Environmental 2025年 375卷

作者： Wang, Dan Li, Xiaosong Ren, Penghui Wei, Yankun Li, Ruopeng Chen, Yukai Wang, Wenchang Yang, Peixia Chen, Zhidong Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology Advanced Catalysis and Green Manufacturing Collaborative Innovation Center School of Petrochemical Engineering Changzhou University Jiangsu Changzhou213164 China School of Materials Science and Engineering Jiangsu Key Laboratory of Materials Surface Science and Technology Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Changzhou University Jiangsu Changzhou213164 China Shandong Laboratory of Advanced Materials and Green Manufacturing at Yantai Yantai264000 China MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin150001 China Electrolytic Copper Foil Engineering Technology Center of Changzhou University Jiangsu Changzhou213164 China

Simultaneously manipulating local atomic microenvironment and pore structure to design highly efficient single-atom catalysts for the oxygen reduction reaction (ORR) is a promising yet challenging approach. Herein, a two-pronged strategy is proposed to achieve asymmetric N and P coordinated atomically dispersed Co atoms on porous carbon nanosheets (denoted as d-CoN3P) for ORR in Zn-air batteries. Benefiting from the high intrinsic activity and densely exposed CoN3P active sites, the d-CoN3P catalyst demonstrates excellent ORR performance, with a half-wave potential of 0.895 V, an enhanced turnover frequency, and a large mass activity. Furthermore, the assembled Zn-air battery with a d-CoN3P cathode delivers a high specific capacity of 842 mA h g−1 along with long-term charge/discharge stability. Theoretical calculations further reveal that the CoN3P site adjusts the electron structure of the Co center, significantly reducing energy barriers and accelerating ORR kinetics. This work provides a new perspective on regulating the coordination microenvironment of single-atom catalysts for ORR. © 2025 Elsevier B.V.

关键词： Electrolytic reduction

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Unraveling the Morphological and Energetic Properties of 2PACz Self-Assembled Monolayers Fabricated With Upscaling Deposition Methods

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Energy & Environmental Materials 2025年第2期8卷 295-308页

作者： Silvia Mariotti Ilhem Nadia Rabehi Congyang Zhang Xiaomin Huo Jiahao Zhang Penghui Ji Tianhao Wu Tongtong Li Shuai Yuan Xiaomin Liu Ting Guo Chenfeng Ding Hengyuan Wang Annalisa Bruno Luis K.Ono Yabing Qi Energy Materials and Surface Sciences Unit (EMSSU) Okinawa Institute of cience and Technology Graduate University (OIST) State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM) Nanjing University of Posts & Telecommunications School of Physical and Mathematical Science & School of Materials Science Engineering & EEnergy Research Institute NTU Nanyang Technological University

Self-assembled monolayers（SAMs） are widely used as hole transport materials in inverted perovskite solar cells,offering low parasitic absorption and suitability for semitransparent and tandem solar *** SAMs have shown to be promising in small-area devices（≤1 cm2）,their application in larger areas has been limited by a lack of knowledge regarding alternative deposition methods beyond the common spin-coating ***,we compare spin-coating and upscalable methods such as thermal evaporation and spray-coating for [2-（9H-carbazol-9-yl）ethyl]phosphonic acid（2PACz）,one of the most common carbazole-based *** impact of these deposition methods on the device performance is investigated,revealing that the spray-coating technique yields higher device ***,our work provides guidelines for the deposition of SAM materials for the fabrication of perovskite solar *** addition,we provide an extensive characterization of 2PACz films focusing on thermal evaporation and spray-coating methods,which allow for thicker 2PACz *** is found that the optimal 2PACz deposition conditions corresponding to the highest device performances do not always correlate with the monolayer characteristics.

关键词： 2PACz Evaporation Perovskite solar cells Self-assembled monolayer Spray-coating

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Ambient-Printed Methylammonium-Free Perovskite Solar Cells Enabled by Multiple Molecular Interactions

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advanced Energy Materials 2025年第0期

作者： Lang, Lei Ding, Zicheng Du, Yachao Wu, Nan Liu, Pengchi Qin, Ru Wang, Shuang Wang, Zhichao Tu, Yongchao Liu, Xiujie Zhang, Zheng Gong, Yongshuai Liu, Dongxue Zhao, Kui Liu, Shengzhong Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education Shaanxi Key Laboratory for Advanced Energy Devices Shaanxi Engineering Lab for Advanced Energy Technology School of Materials Science and Engineering Shaanxi Normal University Xi'an710119 China Science and Technology Research Institute Three Gorges Corporation Beijing101199 China Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Liaoning Dalian116023 China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing100049 China

The ambient printing of high-performance and stable perovskite solar cells (PSCs) is crucial for enabling low-cost and energy-efficient industrial fabrication. However, producing high-quality perovskite films via ambient printing remains challenging due to direct exposure to air, which easily induces additional stacking defects and triggers perovskite degradation compared to films fabricated by traditional spin-coating under inert conditions. Here, a multiple molecular interaction strategy is introduced to address this challenge by incorporating a 2-thiazole formamidine hydrochloride (TC) additive, effectively suppressing defect formation during ambient printing. The specific interactions between TC and precursor components, i.e., multiple hydrogen bonds and coordination interactions, could promote the crystallization of α-phase perovskites and reduce cation and anion vacancies simultaneously when drying in air. These endows high-quality ambient-printed perovskite films with large crystalline grains with eliminated nanovoids and low trap-densities, which improve charge carrier dynamics and prevent perovskite decomposition and hydration under thermal/humidity stress during long-term annealing/ambient storage. The unencapsulated PSCs show a high efficiency of 23.72% with good stability, i.e., realizing 92% and 95% efficiency retention after 672 h of annealing at 85 °C in a N2 atmosphere and after 2088 h of storage in ambient air. © 2025 Wiley-VCH GmbH.

关键词： Hydrogen bonds

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Microstructural evolution and mechanical properties of additively manufactured NiTi shape memory alloys: The role of scanning speed variation

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Journal of Alloys and Compounds 2025年 1025卷

作者： Guo, Chunhuan Shao, Shuaiqi Wang, Shubang Sun, Qianfei Dong, Tao Li, Yanchun Jiang, Fengchun Key Laboratory of Superlight Materials and Surface Technology Ministry of Education College of Material Science and Chemical Engineering Harbin Engineering University Harbin150001 China Yantai Research Institute of School of Harbin Engineering University Yantai264006 China Institute of Advanced Technology Heilongjiang Academy of Sciences Harbin150020 China

To investigate the effect of scanning speeds on the microstructure and performance of NiTi alloys fabricated by laser powder bed fusion method (LPBF-NiTi alloys), the morphological analysis and cyclic compression tests of LPBF-NiTi alloys were carried out by optical microscopy (OM), scanning electron microscopy (SEM), electron backscatter diffraction (EBSD) and Instron 5500 R. Results demonstrated that the activation of restoration is under suppression with the increase of scanning speeds in LPBF-NiTi alloys. Moreover, the pattern of microstructure changes from a combination of equiaxed and cellular grains(600 mm/s) to the one composed of cellular and columnar grains(1000 mm/s). Besides the influence on the microstructural evolution, the scanning speeds change the texture evolution as well. As the scanning speed increases, the texture shifts from near towards a / dual texture. The orientation shows the best recovery rate(76.1 %) and orientation exhibits the highest transformation stress(421 MPa) during cyclic compression tests. © 2025 Elsevier B.V.

关键词： Titanium alloys

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Active control of thermoacoustic instability in a lean-premixed hydrogen-enriched combustor via open-loop acoustic forcing

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Combustion and Flame 2025年 277卷

作者： Liao, Yu Choi, Yongseok Liu, Peijin Kim, Kyu Tae Guan, Yu Department of Aeronautical and Aviation Engineering The Hong Kong Polytechnic University Kowloon Hong Kong National Key Laboratory of Solid Rocket Propulsion Northwestern Polytechnical University Xi'an710072 China Department of Aerospace Engineering Korea Advanced Institute of Science and Technology Daejeon34141 Korea Republic of

Open-loop control is proven effective in mitigating self-excited oscillations in conventional hydrocarbon-fueled combustors, but its effectiveness in hydrogen-fueled combustors remains unknown. This study experimentally investigates the effectiveness of open-loop acoustic forcing in mitigating self-excited periodic thermoacoustic oscillations in a lean-premixed, hydrogen-enriched turbulent combustor. We conducted experiments across a range of hydrogen volume fractions (20% to 50%), varying both the frequencies and amplitudes of the acoustic forcing introduced via three loudspeakers positioned upstream of the combustor. For the first time, we have demonstrated the effectiveness of open-loop acoustic forcing in mitigating self-excited periodic thermoacoustic oscillations in a hydrogen-enriched combustor, with suppression effects becoming more pronounced as the hydrogen content increases. We achieve up to a 90% reduction in pressure amplitude with minimal energy input—less than 1% of the combustor's thermal power. At lower hydrogen fractions, the acoustic forcing fails to effectively decouple the flame dynamics from the acoustic field, resulting in significant oscillation amplification, with natural mode amplitudes increasing by over 2000%. A critical transition from global amplification to suppression occurs at a hydrogen volume fraction of 40%, where successful decoupling between the flame dynamics from the acoustic field is observed. These findings highlight the potential of open-loop control for mitigating thermoacoustic oscillations in hydrogen-enriched combustion systems, offering a promising approach to aid the decarbonization of gas turbines. Novelty and significance statement This study provides the first experimental evidence that open-loop acoustic forcing can effectively suppress thermoacoustic oscillations in hydrogen-enriched turbulent combustors. We show that increasing hydrogen volume fraction (20% to 50%) in the reactant mixtures enhances oscillation s

关键词： Combustors

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Enhancing Interfacial Stability and Electrochemical Performance for High-Temperature Operation of Ni-Rich Layered Oxide Cathode-Li Batteries via Tailoring Electrolyte Chemistry

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Small 2025年第19期21卷 e2410235页

作者： Zhang, Qing Zou, Lingfeng Chu, Youqi Mu, Yongbiao Zou, Huanxiu Wei, Xianbin Xu, Xiaoqian Zeng, Lin Shenzhen Key Laboratory of Advanced Energy Storage Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen518055 China SUSTech Energy Institute for Carbon Neutrality Southern University of Science and Technology Shenzhen518055 China Guangzhou Key Laboratory for Surface Chemistry of Energy Materials New Energy Research Institute School of Environment and Energy South China University of Technology Guangzhou510006 China College of Chemistry and Chemical Engineering Hunan Institute of Science and Technology Yueyang414006 China Department of Materials Science and Engineering Southern University of Science and Technology Shenzhen518055 China

Achieving both interfacial stability and enhanced electrochemical performance in Ni-rich layered oxide cathode (NCM811)-Li batteries remains a critical challenge, especially at elevated temperatures. Current approaches, including artificial coatings and fluorinated solvents, have improved stability but frequently fail to sustain long-term performance due to increased interfacial resistance or degradation over extended cycling. Here, an advanced electrolyte optimization strategy through the incorporation of triethyl phosphate is proposed to simultaneously enhance the stability of the electrode-electrolyte interface by promoting the formation of robust solid electrolyte interphase and cathode electrolyte interphase layers, thereby preventing side reactions and particle cracking. This results in significantly improved cycle life and thermal stability. The NCM811||Li cells featuring the optimized electrolyte exhibit an impressive initial capacity of 196.8 mAh g−1 and a remarkable Coulombic efficiency of 96.2%, retaining 87.3% after 250 cycles at 1 C and an operating temperature of 60 °C. Even at 10 C, it demonstrates a capacity of 138 mAh g−1 with a retention of 87.9% after 100 cycles, showcasing excellent high-temperature performance and Coulombic efficiency. These results present a promising strategy for enhancing the durability and efficiency of NCM811-Li batteries under demanding conditions. © 2025 Wiley-VCH GmbH.

关键词： Lithium batteries

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