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InNi alloy-induced interface effect promoting the parallel electron transfer: improved photothermal catalytic CO2 hydrogenation

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science China Chemistry 2025年第6期68卷 2725-2734页

作者： Haoyu Zhang Yu-Hang Li Yu Nie Xinyu Dou Haodong Ji Xin Tan Jinhua Ye Tao Yu School of Chemical Engineering and Technology Tianjin University Eco-environment and Resource Efficiency Research Laboratory School of Environment and Energy Peking University Shenzhen Graduate School School of Environmental Science and Engineering Tianjin University Advanced Catalytic Materials Research Center School of Materials Science and Engineering Tianjin University Research Center for Solar Driven Carbon Neutrality Hebei University

Photothermal catalytic CO2hydrogenation is an effective means of utilizing carbon resources. However, it is severely limited in terms of kinetics and thermodynamics. Therefore, it is necessary to meticulously design catalysts to solve this problem. Herein, a sandwich structured Ni O@In Ni/In2O3is designed to intrinsically regulate the direction of photogenerated carriers transfer,resulting in a CO yield of 42.97 mmol g-1h-1(1290.3 μmol h-1) with a selectivity near to 100%. In Ni alloy favors the collection of photogenerated carriers by the parallel way and enhancement of the adsorption and activation of CO2molecules. NiO grown on the surface of In Ni alloy not only improves the adsorption of H2and provides sufficient H+for the reaction, but also makes In Ni alloy more stable during the reaction process. The photothermal effect caused by In2O3accelerates the transfer of photogenerated carriers and increases the surface temperature of the catalyst, thereby synergistically promoting the reaction from a kinetic perspective. This work ameliorates the kinetic and thermodynamic limitations of the photothermal catalytic CO2hydrogenation process through rationally designing the electron transfer direction of the sandwich structured catalysts to parallel way.

关键词： photothermal catalytic CO2 hydrogenation In2O3 InNi alloy alloy/semiconductor interface

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Strain boosts CO oxidation on Ni single-atom-catalyst supported by defective graphene

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Chinese Chemical Letters 2023年第2期34卷 295-300页

作者： Quanguo Jiang Yushuai Qian Yuqing Liu Min Huang Zhimin Ao College of Mechanics and Materials Hohai UniversityNanjing 210098China Guangzhou Key Laboratory Environmental Catalysis and Pollution Control Guangdong Key Laboratory of Environmental Catalysis and Health Risk ControlInstitute of Environmental Health and Pollution ControlSchool of Environmental Science and EngineeringGuangdong University of TechnologyGuangzhou 510006China

In order to realize the sulfur and water resistance and facilitate the CO oxidation reactions,the effects of strain on the adsorption of CO,O_(2),SO_(2)and H_(2)O molecules on Ni single-atom-catalyst supported by single-carbon-vacancy graphene(Ni-SG) have been studied based on first principles *** shows that the compressive strain increases the adsorption energies of all above mentioned molecules on Ni-SG,where SO_(2)is adsorbed more strongly on Ni-SG than ***,in the presence of tensile strain,the adsorption energies decreases significantly when the molecules(O_(2)and SO_(2)) obtain electrons from NiSG,while the adsorption energies just slightly decrease when the molecules(CO and H_(2)O) lose electrons to Ni-SG,which finally achieves the preferential adsorption of CO and O_(2)molecules on Ni-SG by tensile *** addition,with tensile strain increasing to 10%,the rate-limited energy barrier along Eley-Rideal(ER) path monotonically increases from 0.77 eV to 0.98 eV,while the rate-limited energy barrier along Langmuir-Hinshelwood(LH) path monotonically decreases from 0.54 eV to 0.44 eV,indicating that the tensile strain can facilitate the LH mechanism while imped the ER mechanism on *** Hirshfeld charge and orbital levels of O_(2)and CO molecules are modulated by the tensile strain,which plays an important role for the decreasing of energy barriers for CO ***,the tensile strain can enhance the sulfur and water resistance of Ni-SG,as well as boost the CO oxidation reactions.

关键词： Strain effect Ni single-atom-catalyst Preferential adsorption CO oxidation First principles calculations

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Tailoring magnetic softness of Fe-based amorphous alloys with superior magnetization by magnetic field annealing

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Journal of Materials science & technology 2024年第33期200卷 27-37页

作者： Long Hou Benjun Wang Li Liu Xinhao Mao Mingya Zhang Chenchen Yuan Zhong Li Wenwei Ju Hanchen Feng Chengying Tang Ailin Xia Weihuo Li School of Materials Science and Engineering School of Metallurgical EngineeringAnhui University of TechnologyMa’anshan 243002China Wuhu Technology and Innovation Research Institute Wuhu 242000China School of Materials Science and Engineering Instrumental Analysis CenterSoutheast UniversityNanjing 211189China Institute of Advanced Magnetic Materials College of Materials and Environmental EngineeringHangzhou Dianzi UniversityHangzhou 310012China Guangxi Key Laboratory for Informational Materials&School of Materials Science and Engineering Guilin University of Electronic TechnologyGuilin 541004China

The inverse relationship between the saturation magnetic flux density(Bs)and coercivity(Hc)of Febased amorphous alloys is a very active research topic that has been extensively *** this work,we conducted a detailed investigation on the magnetic softness of Fe_(83.2-x)Co_(x)B_(10)C_(6)Cu_(0.8)(x=0 and 6 at.%)amorphous alloys based on analysis of the surface morphology,microstructure,magnetic anisotropy,and magnetic domain *** magnetic softness-magnetization synergy was realized in the present alloys by magnetic field annealing(MFA)during the de-stressing process.A dramatic 84%reduction of Hc to 2.2 A/m was achieved for the Co-doped alloy under MFA,exhibiting excellent magnetic performance with a superb Bs of 1.86 *** consistency between the experimental results and theoretical analysis revealed that the MFA process can mitigate the trade-off between stress-induced anisotropy and induced uniaxial anisotropy owing to the homogenized structure formed by field ***,the process favored a low Hc due to the significant continuous decline in the total magnetic anisotropy,which coincided well with the results of Magneto-optical Kerr *** study elucidates a mechanism for tuning Hc in Co-doped alloy systems and affords a possible pathway for softening amorphous alloys with high Bs.

关键词： Amorphous alloy De-stressing magnetic field annealing Magnetic softness Microstructure Magnetic anisotropy

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Estimation of the unfrozen water content of saturated sandstones by ultrasonic velocity

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International Journal of Mining science and technology 2023年第6期33卷 733-746页

作者： Shibing Huang Fei Liu Gang Liu Shilin Yu School of Resources and Environmental Engineering Wuhan University of Science and TechnologyWuhan 430081China Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources Wuhan 430081China

The unfrozen water content(UWC)of rocks at low temperature is an important index for evaluating the stability of the rock engineering in cold regions and artificial freezing *** study addresses a new method to estimate the UWC of saturated sandstones at low temperature by using the ultrasonic *** velocity variations can be divided into the normal temperature stage(20 to 0℃),quick phase transition stage(0 to-5℃)and slow phase transition stage(-5 to-25℃).Most increment of ultrasonic velocity is completed in the quick phase transition stage and then turns to be almost a constant in the slow phase transition *** addition,the UWC is also measured by using nuclear magnetic resonance(NMR)*** is validated that the ultrasonic velocity and UWC have a similar change law against freezing and thawing *** WE(weighted equation)model is appropriate to estimate the UWC of saturated sandstones,in which the parameters have been accurately determined rather than by data *** addition,a linear relationship between UWC and ultrasonic velocity is built based on pore ice crystallization *** is evidenced that this linear function can be adopted to estimate the UWC at any freezing temperature by using P-wave velocity,which is simple,practical,and accurate enough compared with the WE model.

关键词： Ultrasonic velocity Freeze-thaw cycles Unfrozen water content Prediction function Hysteresis effect

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Experimental study on composite oxygen carrier NiFe2O4/Sr4Fe6O13 in chemical looping reforming coupled with thermochemical water splitting

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International Journal of Hydrogen Energy 2025年 142卷 1075-1085页

作者： Min, Shuting Wang, Chenxuanzi Zhong, Mingxuan Guo, Yibo Xiao, Bo Xu, Tingting Wang, Xun Huazhong University of Science & Technology 1037 Luoyu Road Hubei Wuhan430074 China Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin School of Environmental Science & Engineering Huazhong University of Science & Technology 1037 Luoyu Road Hubei Wuhan430074 China MIIT Key Laboratory of Thermal Control of Electronic Equipment School of Energy and Power Engineering Nanjing University of Science and Technology Nanjing210094 China

In this study, a series of composite oxygen carriers (OCs) of NiFe2O4/Sr4Fe6O13 (xNiySr4) was synthesized by solid-phase synthesis method. The performance evaluation for syngas and hydrogen production was investigated in chemical looping reforming coupled with thermochemical water splitting using ethanol as fuel. The presence of NiFe2O4 enhanced the lattice oxygen activity and intensified the reduction of Sr4Fe6O13. The Ni–Fe alloy was produced in fuel reactor (FR) and then promoted water splitting in steam reactor (SR) for hydrogen production. The presence of Sr4Fe6O13 regulated the reactivity of NiFe2O4, which prevented the ethanol complete oxidation in FR and enhanced the syngas production. Additionally, the introduction of Sr4Fe6O13 decreased the content of NiFe2O4 and suppressed carbon deposition, which resulted in a high purity of hydrogen in SR. Moreover, the existence of Sr4Fe6O13 mitigated the sintering of NiFe2O4. The composite oxygen carrier of NiFe2O4/Sr4Fe6O13 exhibited better cyclic stability than the single NiFe2O4 and Sr4Fe6O13 oxygen carrier. The 0.4NiFe2O4/0.6Sr4Fe6O13 oxygen carrier, termed as 4Ni6Sr4, exhibited a good performance for syngas and hydrogen production performance at 800 °C. A high syngas purity of 74.36% was observed with a yield of 1.05 Nm³/kg ethanol in FR. The hydrogen yield and purity in SR were 6.51 mmol/g OC and 96.60%, respectively. © 2025 Hydrogen Energy Publications LLC

关键词： Sintering

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Comparative analysis of DNA-SIP and magnetic-nanoparticle mediated isolation (MMI) on unraveling dimethoate degraders

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Frontiers of environmental science & engineering 2024年第1期18卷 59-69页

作者： Luning Lian Yi Xing Dayi Zhang Longfei Jiang Mengke Song Bo Jiang School of Energy and Environmental Engineering University of Science&Technology BeijingBeijing 100083China Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants University of Science&Technology BeijingBeijing 100083China National Environmental and Energy Science and Technology International Cooperation Base University of Science&Technology BeijingBeijing 100083China College of New Energy and Environment Jilin UniversityChangchun 130021China Guangzhou Institute of Geochemistry Chinese Academy of SciencesGuangzhou 510640China College of Natural Resources and Environment South China Agricultural UniversityGuangzhou 510642China National Engineering Laboratory for Site Remediation Technologies Beijing 100015China

Microorganisms are crucial in the bioremediation of organophosphorus pesticides. However, most functional microorganisms (> 99%) are yet to be cultivated. This study applied two cultivation-independent approaches, DNA-SIP and magnetic-nanoparticle mediated isolation (MMI), to identify the functional microorganisms in degrading dimethoate in agricultural soils. MMI identified five dimethoate degraders: Pseudomonas, Bacillus, Ramlibacter, Arthrobacter, and Rhodococcus, whereas DNA-SIP identified three dimethoate degraders: Ramlibacter, Arthrobacter, and Rhodococcus. Also, MMI showed higher resolution than DNA-SIP in identifying functional microorganisms. Two organic phosphohydrolase (OPH) genes: ophC2 and ophB, were involved in dimethoate metabolism, as revealed by DNA-SIP and MMI. The degradation products of dimethoate include omethoate, O,O,S-trimethyl thiophosphorothioate, N-methyl-2-sulfanylacetamide, O,O-diethyl S-hydrogen phosphorodithioate, O,O,O-trimethyl thiophosphate, O,O,S-trimethyl thiophosphorodithioate, and O,O,O-trimethyl phosphoric. This study emphasizes the feasibility of using SIP and MMI to explore the functional dimethoate degraders, expanding our knowledge of microbial resources with cultivation-independent approaches.

关键词： Stable isotope probing(SIP) Magnetic-nanoparticle mediated isolation(MMI) Dimethoate Biodegradation Cultivation-independent approach

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Ultrasonic enhancement of persulfate oxidation system governs emerging pollutants decontamination

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Green Energy & Environment 2024年第11期9卷 1666-1678页

作者： Yanpan Li Yanbo Zhou Yi Zhou National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical ProcessEast China University of Science and Technology130 Meilong RoadShanghai200237China Shanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization East China University of Science and Technology130 Meilong RoadShanghai200237China Shanghai Institute of Pollution Control and Ecological Security Shanghai200092China

Emerging contaminants (ECs) are widely present in aquatic environments, posing potential risks to both ecosystems and human health. Theultrasound-assisted persulfate oxidation process has attracted considerable attention in the degradation of ECs due to its ability to generate bothsulfate radicals and cavitation effects, enhancing degradation effects. In this paper, the principle of ultrasonic synergistic Fenton-like oxidationsystem for degrading organic pollutants was reviewed, divided into homogeneous system, non-homogeneous system, and single-atom system toexplore the synergistic effect of ultrasound-enhanced persulfate technology in three aspects, and the effects of environmental factors such asultrasonic frequency and power, system pH, temperature, and initial oxidant concentration on the system's decontamination performance werediscussed. Finally, future research on ultrasonically activated persulfate technology is summarized and prospected.

关键词： Ultrasound Persulfate Emerging contaminants Reaction mechanism Synergistic effects

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Design and syntheses of functionalized copper-based MOFs and its adsorption behavior for Pb(Ⅱ)

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Chinese Chemical Letters 2022年第2期33卷 973-978页

作者： Jingping Zhong Jian Zhou Minsi Xiao Jun Liu Jili Shen Juan Liu Sili Ren Jiangxi Key Laboratory of Mining Engineering School of Resources and Environmental EngineeringJiangxi University of Science and TechnologyGanzhou 341000China

A novel copper-based MOFs adsorbent(Cu-BTC-Th) was prepared using an one-step method by introducing a new organic ligand of 4-thioureidobenzoicacid(Th) with active groups for selectively adsorbing Pb(Ⅱ) from aqueous solutions. The chemical composition and structure of the prepared MOFs materials were characterized by scanning electron microscope(SEM), X-ray diffraction(XRD), fourier transform infrared spectroscopy(FTIR), X-ray photoelectron spectroscopy(XPS), Brunner-Emmet-Teller(BET) analysis, and zeta potential measurements. The adsorption capability of the prepared Cu-MOFs was significantly enhanced by introducing the new organic ligand of Th in the materials. The maximum adsorption capacity of the Cu-BTC-Th for Pb(Ⅱ) attains 732.86 mg/g under the optimal conditions. In addition,the adsorption kinetics and adsorption isotherm analysis showed that the adsorption process followed the pseudo-second-order kinetic model and Langmuir adsorption model, indicating that the adsorption of Pb(Ⅱ) by Cu-BTC-Th was a monolayer chemisorption. The adsorption mechanism of Cu-BTC-Th for Pb(Ⅱ)was discussed and revealed. On one hand, the adsorption of Pb(Ⅱ) is mainly through ion exchange with the Cu(Ⅱ). On the other hand, the-NH2 and-C=S functional groups introduced in the Cu-BTC-Th materials have stronger coordination ability with the Pb(Ⅱ) ions to enhance the adsorption capability.

关键词： MOFs Adsorption Cu(Ⅱ)ions Pb(Ⅱ)ions Ion exchange Coordination

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Constructing seasonal records of Ross Ice Shelf elevation changes using ICESat altimetry data

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Geodesy and Geodynamics 2025年第3期16卷 331-340页

作者： Lexian Yuan Shengkai Zhang Feng Xiao Xiao Li Tingguo Lu Hui Luo Fei Li Chinese Antarctic Center of Surveying and Mapping Wuhan University School of Electrical Engineering Naval University of Engineering Key Laboratory of Polar Environment Monitoring and Public Governance (Wuhan University) Ministry of Education State Key Laboratory of Geodesy and Earth's Dynamics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Institute of Environmental Engineering ETH Zurich Department of Earth and Space Sciences Southern University of Science and Technology

Ice shelves are important passageways for ice sheets flowing into the ocean. Through iceberg calving and basal melting, ice shelves exert considerable influence on the mass balance of the Antarctic Ice Sheet and glacier stability. The Ross Ice Shelf(RIS), the largest body of floating ice on Earth, plays an essential role in any changes in the mass balance of the Antarctic Ice Sheet. The long-term elevation change trend of RIS has been calculated with multiple satellite altimetry in previous studies. However, the seasonal variations were less revealed. Based on crossover analysis and indirect observation adjustments, this study proposed a new method for constructing seasonal records for surface elevation changes in the RIS using ICESat laser altimetry data from 2003 to 2009. The results showed that surface elevation changes exhibited seasonal variations with fluctuations over 20 cm, and the seasonal change characteristics were closely related to the temperature. Interannual variations in RIS surface elevation decreased from 2003 to2009 at a rate of 2 cm/yr. From March 2003 to April 2007, the surface elevation decreased at 3.7 cm/yr;however, after April 2007, the surface elevation increased at 5.5 cm/yr. The more recent stages of surface elevation growth have been influenced by reductions in the summer basal melt, which is related to the decreases in ocean heat content.

关键词： Ross Ice Shelf Elevation change ICESat Seasonal variations Antarctic

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Genomic characterization and molecular dating of the novel bacterium Permianibacter aggregans HW001T,which originated from Permian ground water

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Marine Life science & technology 2023年第1期5卷 12-27页

作者： Shuangfei Zhang Russell T.Hill Hui Wang Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou 511458China Biology Department College of Scienceand Guangdong Provincial Key Laboratory of Marine BiotechnologyShantou UniversityShantou 515063China Institute of Marine and Environmental Technology University of Maryland Center for Environmental ScienceBaltimoreMD 21201USA

The Permian Basin is a unique ecosystem located in the southwest of the *** unanswered question is whether the bacteria in the Permian Basin adapted to the changing paleomarine environment and survived in the remnants of Permian *** our previous study,a novel bacterial strain,Permianibacter aggregans HW001T,was isolated from micro-algae cultures incubated with Permian Basin waters,and was shown to originate from the Permian *** this study,strain HW001T was shown to be the representative strain of a novel family,classified as‘Permianibacteraceae’.The results of molecular dating suggested that the strain HW001T diverged~447 million years ago(mya),which is the early Permian period(~250 mya).Genome analysis was used to access its potential energy utilization and biosynthesis capacity.A large number of transporters,carbohydrate-active enzymes and protein-degradation related genes have been annotated in the genome of strain *** addition,a series of important metabolic pathways,such as peptidoglycan biosynthesis,osmotic stress response system and multifunctional quorum sensing were annotated,which may confer the ability to adapt to vari-ous unfavorable environmental ***,the evolutionary history of strain HW001T was reconstructed and the horizontal transfer of genes was predicted,indicating that the adaptation of *** to a changing marine environment depends on the evolution of their metabolic capabilities,especially in signal *** conclusion,the results of this study provide genomic information for revealing the adaptive mechanism of strain HW001T to the changing ancient oceans.

关键词： Permian groundwater Molecular dating Genomic adaptation Genes gain and loss

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