Article
Materials Science, Multidisciplinary
Joe Sakai, Jose Manuel Caicedo Roque, Pablo Vales-Castro, Jessica Padilla-Pantoja, Guillaume Sauthier, Jose Santiso
Summary: In this study, non-doped PbTiO3 thin films were prepared using pulsed laser deposition, and it was found that using a PbO-TiO2 pie-chart target resulted in high-quality films with composition, crystallinity, flatness, and ferroelectric properties almost independent of the areal ratio.
Article
Energy & Fuels
Ju-Guang Hu, Tong Wu, Muhammad Ishaq, Umar Farooq, Shuo Chen, Zhuang-Hao Zheng, Zheng-Hua Su, Xiao-Dong Lin, Ping Fan, Hong-Li Ma, Xiang-Hua Zhang, Guang-Xing Liang
Summary: The CZTS thin-film solar cell achieved a record power conversion efficiency of 6.62% through pulsed laser deposition and sulfurization process, attributed to its optimized structure and composition. This research provides a facile and robust preparation method for CZTS films with enhanced photovoltaic properties and increased efficiency.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Materials Science, Multidisciplinary
Dongwen Gao, Li Wang, Xueqiong Su, Jin Wang, Ruixiang Chen
Summary: This study investigated the impact of a magnetic field on the optical properties of Co-doped ZnS nano films. By manipulating the growth structure of the film during deposition using a magnetic environment, the optical properties were enhanced. Experimental results under magnetic field conditions were consistent with simulation results, confirming the improved optical properties.
Article
Chemistry, Physical
Rovena Veronica Pascu, George Epurescu, Iulian Boerasu, Ana -Maria Banici Niculescu, Dumitru Manica, Alexandra Maria Isabel Trefilov, Bogdan Alexandru Sava
Summary: Samarium doped ceria thin films were successfully deposited on Si (100) substrates at 500 and 600 degrees C using Pulsed Laser Deposition. X-ray Diffraction confirmed the presence of Samarium Doped Cerium Oxide crystalline compound in the films. Atomic Force Microscopy and Scanning Electron Microscopy revealed high quality films with low roughness, especially for the sample deposited at 600 degrees C. X-ray Photoelectron Spectroscopy showed an increased proportion of Ce3+ in the deposited films compared to the target. Spectroscopic Ellipsometry analysis calculated a refractive index under 2.2 in the visible and near-infrared domain. Nanoindentation tribometric measurements indicated a decrease in elasticity modulus and hardness with increasing substrate temperature. These films show potential as electrolyte materials for new generation electrochemical devices.
APPLIED SURFACE SCIENCE
(2022)
Article
Water Resources
S. Ismat Shah, Sawsan A. Mahmoud, Samar H. Bendary, Ahmed K. Aboulgheit, A. A. Salem, Osama A. Fouad
Summary: Pulsed laser deposition was used to deposit nanosized nitrogen-doped TiO2 thin films on alumina disc-shaped and glass substrates for low temperature epitaxial growth. The textural properties of the fabricated disc and alumina disc-supported TiO2 were investigated, showing higher photocatalytic degradation efficiency for Al2O3/TiO2 catalyst compared to TiO2/glass catalyst. The presence of different photointermediates for 2-CP degradation in each cycle was identified, supported by adsorbed fragments on the catalyst surface.
APPLIED WATER SCIENCE
(2021)
Article
Chemistry, Physical
Stefan Andrei Irimiciuc, Sergii Chertopalov, Maksym Buryi, Zdenek Remes, Martin Vondracek, Ladislav Fekete, Michal Novotny, Jan Lancok
Summary: CuI thin films were deposited with controlled morphology, structure, and defect nature in different Ar atmospheres. Band gap tailoring was achieved by controlling the plasma ion kinetic energy. Variation in Ar pressure allowed control over the nature of vacancies. Addition of Ar resulted in preferential scattering and energy losses of Cu ions in the plasma.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Coatings & Films
Jiqiang Jia, Chen Liu, Mengjiao Guo, Li Lei
Summary: This study reports the epitaxial growth process of negative-type high-temperature superconducting thin film Nd1.85Ce0.15CuO4 (NCCO) by pulsed laser deposition. The results show that a good superconducting phase can be prepared from NCCO films only when the heat treatment temperature is higher than 650°C. The optimal oxygen pressure and deoxidization temperature for phase formation and the superconductivity of NCCO films are also determined.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2022)
Article
Chemistry, Physical
Valter Kiisk, Michal Novotny, Margus Kodu, Siim Pikker, Tea Avarmaa, Jan Remsa, Jan Lancok, Martin Vrnata, Raivo Jaaniso
Summary: Many research activities focus on functional luminescent materials based on metal oxides and trivalent rare earth ions. Specific applications require optimizing material preparation, annealing, and excitation-detection techniques. In this study, pulsed laser deposition was used to obtain thin TiO2 films containing 1 at% of samarium or neodymium impurity ions. The effects of pulsed laser annealing on their structure and luminescent properties were investigated.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
G. Bimashofer, S. Smetaczek, E. Gilardi, C. W. Schneider, A. Limbeck, T. Lippert, J. Stahn
Summary: LixLaySrzMnO3 thin films of various compositions were grown using pulsed laser deposition, studying the effects of deposition temperature, target-to-substrate distance, and deposition pressure on the film's composition. The experiments also showed that lithium loss is likely when growing multi-elemental oxide thin films, but specific growth conditions and different target compositions can help achieve the desired film composition.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Physics, Condensed Matter
A. Mandal, S. K. Adhi, B. P. Joshi, S. D. Shinde, A. G. Banpurkar, A. V. Limaye, K. P. Adhi, T. Sant, S. M. Jejurikar
Summary: Highly c-axis oriented, single-phase praseodymium doped ZnO thin films were deposited on cAl(2)O(3) substrate under different oxygen pressure conditions. Photoluminescence and X-ray photoelectron emission studies revealed the emission of Pr3+ ions and observed different transitions of Pr3+ ions.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Chemistry, Physical
Tao Liu, Helei Dong, Hanyu Wang, Yanyan Niu, Xiangpeng Li, Lei Zhang, Jijun Xiong, Qiulin Tan
Summary: In this study, Pt-ITO thin-film thermocouples were fabricated using pulsed laser deposition on alumina ceramic substrates, and the microstructure and electrical properties were investigated. The results showed that the ITO thin films had a new type of nano cone structure, with a resistivity of only 2.76 x 10-4 omega center dot cm at a substrate temperature of 600 degrees C. The Pt-ITO thin-film thermocouples could work stably in the temperature range of 25-1300 degrees C and for a short time at 1400 degrees C. The average Seebeck coefficient was more than 50 mu V/degrees C at 1300 degrees C, and the response time was less than 435 mu s. These findings provide important insights for the potential application of Pt-ITO TFTCs in high-temperature measurement, and confirm the feasibility of preparing superior thermoelectric semiconductor materials using pulsed laser deposition.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Yongjuan Lu, Gewen Yi, Hancheng Zhou, Juanli Liu, Hong Zhang, Lina Lu, Lili An
Summary: Researchers improved the photoelectrochemical properties of TiO2/CdS composite nanorod electrodes through a one-step quantum dot synthesis and assembly process. Using pulsed laser deposition, CdS quantum dots were successfully grown on TiO2 nanorods, forming stable TiO2/CdS heterostructures.
Article
Chemistry, Physical
Anna Kot, Marta Radecka, Katarzyna Zakrzewska
Summary: The strategy of modifying the titanium dioxide photoanode with an internal upconverter containing Er activator and Yb sensitizer was proposed. Various thin film structures were deposited on different substrates using magnetron sputtering process, and their optical, structural, and electrochemical properties were characterized. The results showed that the modified TiO2:Er,Yb photoanodes exhibited enhanced performance compared to pure TiO2 and other modified photoanodes.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
T. Roch, M. Gregor, S. Volkov, M. Caplovicova, L. Satrapinskyy, A. Plecenik
Summary: This study examined the impact of different substrates on the structure and orientation of niobium nitride thin films, revealing that films on C-Al2O3 substrate exhibited the best superconducting properties.
APPLIED SURFACE SCIENCE
(2021)
Article
Physics, Condensed Matter
Ji-Hoon Kang, Jihyun Kim, Tae Beom Park, Woo Seok Choi, Sungmin Park, Tuson Park
Summary: We report the growth of CeIrIn5 thin films with different crystal orientations on a MgF2 (001) substrate using the pulsed laser deposition technique. The characteristic features of heavy-fermion superconductors, including Kondo coherence and superconductivity, were observed in the thin films. The successful synthesis of CeIrIn5 thin films is expected to provide a new avenue for exploring novel quantum phases.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2022)
Article
Environmental Sciences
Chang-Mao Hung, Chin-Pao Huang, Chiu-Wen Chen, Cheng-Di Dong
Summary: A new electrode was constructed by anodic electropolymerization of poly-(L-serine) on an rGO-Nafion-modified glassy carbon electrode for the detection of the emerging organic contaminant naproxen. The electrode exhibited excellent catalytic oxidation of NPX due to the synergistic effect of PLS and rGO-Nafion. The electrochemical oxidation of NPX was a one-electron transfer process with adsorption limitation, showing good linearity and sensitivity in detecting NPX in water samples.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Agricultural Engineering
Chang-Mao Hung, Chiu-Wen Chen, Chin-Pao Huang, Su Shiung Lam, Cheng-Di Dong
Summary: The antibiotic sulfamethoxazole (SMX) commonly found in water can be effectively removed by metal-free pristine coconut-shell-derived biochar (CSBC) through activating peroxymonosulfate (PMS). The activation of PMS by CSBC leads to the degradation of SMX through a combination of radical and nonradical reaction pathways, showing high efficiency in removing sulfonamide antibiotics from aqueous environments.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Robert J. Giraud, Philip H. Taylor, R. Bertrum Diemer, Chin-Pao Huang
Summary: This paper reports the design and qualification of a small-scale reactor system for modeling the combustion of fluorinated polymers in municipal waste-to-energy plants. By using methanol as a surrogate and focusing on chemical similarity, the bench-scale system was able to mimic full-scale combustion processes. The system showed high efficiency in collecting perfluorooctanoic acid (PFOA), demonstrating its capability in investigating potential emissions of PFOA from fluorinated polymer combustion.
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION
(2022)
Article
Environmental Sciences
Chang-Mao Hung, Chiu-Wen Chen, Chin-Pao Huang, Shu-Ling Hsieh, Cheng-Di Dong
Summary: This study investigated the relationships and interactions between extracellular polymeric substances (EPS) and microplastics (MPs) in coral reef ecosystems. The findings showed that microbial interactions with microplastics caused aggregation and formation of EPS matrix, which had implications for the microbial community associated with coral.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Chang-Mao Hung, Chiu-Wen Chen, Chin-Pao Huang, Cheng-Di Dong
Summary: Metal-free single heteroatom (N, O, and B)-doped coconut-shell biochar was prepared and exhibited high catalytic activity for the elimination of sulfathiazole from aquaculture water. A potential sulfonamide-degrading microorganism was also discovered, which could further facilitate the removal of sulfonamide drugs.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Chang-Mao Hung, Chiu-Wen Chen, Chin-Pao Huang, Cheng-Di Dong
Summary: This study found that metal-free biochar derived from water hyacinth combined with calcium peroxide can effectively degrade 4-nonylphenol-contaminated sediments. The degradation mechanism is mainly attributed to the reactive species and active sites on the biochar surface, as well as the ability of the carbon framework to shuttle electrons.
ENVIRONMENTAL RESEARCH
(2022)
Article
Agricultural Engineering
Chang-Mao Hung, Chiu-Wen Chen, Chin-Pao Huang, Der-Shyan Sheu, Cheng-Di Dong
Summary: This study aimed to assess the combined use of biopolymer, poly-3-hydroxybutyrate, and peroxymonosulfate to degrade phthalate esters (PAEs) and decontaminate waste-activated sludge (WAS). The combined treatment removed 86% of PAEs from WAS in 12 hours and enriched the PAE-biodegrading microbes. The use of poly-3-hydroxybutyrate and peroxymonosulfate showed promising potential for WAS pretreatment, contributing to circular bioeconomy and pollution mitigation.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Kegang Wei, Qingliang Wang, Chin-Pao Huang
Summary: Amino-functionalized porous silica was studied as an adsorbent for U(VI) and its adsorption mechanism was investigated. Different porous silica materials with varied surface areas and average pore sizes were synthesized and modified with AEPTES. The adsorbents were thoroughly characterized and the adsorption energy was estimated. It was found that both coulombic energy and chemical energy contributed significantly to the adsorption energy, and AE@MPS had the lowest surface activate site density at a pore size of 4.1 nm.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Cuijuan Feng, Michael Huang, Chin-pao Huang
Summary: A gamma-Fe2O3-biochar was synthesized using ferrate as precursor, which increased surface acidity and magnetism strength, enhancing metal ion adsorption and enabling easy magnetic separation. The adsorption of selected metal ions onto gamma-Fe2O3-biochar was well fitted by the Langmuir adsorption model, with significantly high monolayer metal coverage capacity. Metal ion adsorption reactions involved surface complex formation and the dominating component for adsorption was specific chemical energy.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Chang-Mao Hung, Chin-Pao Huang, Shu-Ling Hsieh, Ya-Ting Chen, Chiu-Wen Chen, Cheng-Di Dong
Summary: This study presents an efficient method for remediating DEHP-contaminated marine sediments using water hyacinth biochar (WHBC) as a carbocatalyst activated by calcium peroxide (CP). The catalytic capacity of WHBC was significantly influenced by the pyrolysis temperature. The WHBC/CP system achieved a 94% removal of DEHP, with singlet oxygen (1O2) and electron-rich carbonyl functional groups playing crucial roles in the non-radical activation of CP. Moreover, WHBC showed lower cytotoxicity in HepG2 cells and induced cell cycle arrest at the G2/M phase.
ENVIRONMENTAL RESEARCH
(2023)
Article
Biotechnology & Applied Microbiology
Chang-Mao Hung, Chin-Pao Huang, Shu-Ling Hsieh, Ya-Ting Chen, Chiu-Wen Chen, Cheng-Di Dong
Summary: This study developed an advanced oxidation process using water hyacinth biochar (WHBC) as a green catalyst to activate calcium peroxide (CaO2; CP) for the remediation of PAH-contaminated sediments, and emphasized the biochar-driven cellular oxidative stress. The catalytic capacity of WHBC was determined at pyrolysis temperature between 300 and 900 degrees C. WHBC prepared at 700 degrees C (WHBC700) and CP removed 74% of PAHs from the sediment matrix.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Agricultural Engineering
Chang-Mao Hung, Chiu-Wen Chen, Chin-Pao Huang, Cheng-Di Dong
Summary: This study synthesized a novel material, dual heteroatom nitrogen and boron-co-doped lignin-based biochar (NB-LGBC), which was used for the activation of calcium peroxide (CP) to enhance the removal of organic micropollutants (OMPs), such as 4-nonylphenol (4-NP), from waste activated sludge (WAS). The introduction of NB-LGBC/CP significantly improved the degradation of 4-NP through a synergistic interaction and electron transfer. Furthermore, the NB-LGBC/CP treatment enriched specific bacteria, Desulfonatronum within the Proteobacteria phylum, in the WAS, enhancing the biological treatment capacity of 4-NP. Therefore, NB-LGBC shows great potential as a novel approach for decontamination of WAS.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Chang-Mao Hung, Jia-Wei Cheng, Chiu-Wen Chen, Chin-Pao Huang, Cheng-Di Dong
Summary: The effect of pyrolysis atmosphere (CO2 or N2), pyrolysis temperature (300-900 degrees C), and heteroatom (N, B, O, P, NP, or NS) doping on the content of polycyclic aromatic hydrocarbons in pineapple leaf biochar was investigated. Without doping, the highest polycyclic aromatic hydrocarbon production (1332 +/- 27 ng/g) was observed in CO2 at 300 degrees C, while the lowest (157 +/- 2 ng/g) was observed in N2 at 700 degrees C. The main components, naphthalene and acenaphthylene, accounted for about 91% of the total polycyclic aromatic hydrocarbon in biochar produced under CO2 at 300 degrees C. Doping significantly reduced the total hydrocarbon content, with reductions of 49% (N), 61% (B), 73% (O), 92% (P), 93% (NB), and 96% (NS) under the conditions of maximal polycyclic aromatic hydrocarbon production (CO2, 300 degrees C). The findings highlight the importance of controlling pyrolysis atmosphere, temperature, and heteroatom doping for the management of polycyclic aromatic hydrocarbons in biochar production and contribute to the development of circular bioeconomy.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Chang-Mao Hung, Chiu-Wen Chen, Chin-Pao Huang, Cheng-Di Dong
Summary: The synthetic antibiotic sulfadiazine (SDZ) in water streams has become a growing concern due to its negative effects on ecosystems. Therefore, finding effective decontamination strategies is crucial. In this study, nitrogen-doped coconut shell biochar (NCSBC) was synthesized as a catalyst to activate peroxymonosulfate (PMS) for SDZ degradation. The results showed that the NCSBC/PMS system achieved a high removal rate of SDZ under optimum operating conditions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Soohoon Choi, Ching-Lung Chen, Murray Johnston, Gen Suh Wang, Chin-Pao Huang
Summary: In order to understand the fate and transport of engineered nanoparticles (ENP) in natural environments, this study investigated the interactions between ENP and organic matter sampled from wastewater treatment plants. The results showed that the surface charge of the particles did not affect their stability, but influenced the amount of sorption onto particulate organic matter. Additionally, the size of organic matter was found to impact the fate and transport of ENP under field conditions.
MEMBRANE AND WATER TREATMENT
(2022)
Article
Chemistry, Physical
Bolun Yu, Denan Li, Qianqian Zhu, Shufan Yao, Lifeng Zhang, Yanshuo Li, Zhenxin Zhang
Summary: This study successfully improved the catalytic activity of a zeolitic octahedral metal oxide by incorporating a single zinc species into its micropore. The zinc incorporation achieved a high ethane conversion rate and ethylene selectivity. Mechanism study showed that the isolated zinc site played a crucial role in activating oxygen and ethane, as well as stabilizing intermediates and transition states.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Ruoqi Liu, Hao Fei, Jian Wang, Ting Guo, Fangyang Liu, Zhuangzhi Wu, Dezhi Wang
Summary: This work successfully synthesized a high-performing S-enriched MoS2 catalyst for electrocatalytic nitrogen reduction reaction (NRR), demonstrating high activity and selectivity. The synergistic effect of the 1T phase and bridging S22- species was shown to play a positive role in NRR performances, and DFT calculations revealed the mechanism behind the improved performance.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Pan Xia, Lele Zhao, Xi Chen, Zhihong Ye, Zhihong Zheng, Qiang He, Ignasi Sires
Summary: This study presents a modified gas-diffusion electrode (GDE) for highly efficient and stable H2O2 electrosynthesis by using trace polymethylhydrosiloxane (PMHS). DFT calculations provide an in-depth understanding of the roles of PMHS functional groups.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Kwangchol Ri, Songsik Pak, Dunyu Sun, Qiang Zhong, Shaogui Yang, Songil Sin, Leliang Wu, Yue Sun, Hui Cao, Chunxiao Han, Chenmin Xu, Yazi Liu, Huan He, Shiyin Li, Cheng Sun
Summary: Different B-doped rGO catalysts were synthesized and their 2e- oxygen reduction reaction (ORR) performance was investigated. It was found that the 2e- ORR selectivity of B-doped rGO was influenced by the B content and oxygen mass transfer conditions. The synthesized catalyst exhibited high 2e- ORR selectivity and was capable of degrading organic pollutants continuously.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou
Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Choe Earn Choong, Minhee Kim, Jun Sup Lim, Young June Hong, Geon Joon Lee, Keun Hwa Chae, In Wook Nah, Yeomin Yoon, Eun Ha Choi, Min Jang
Summary: In this study, the synergistic effect between argon-plasma-system (AP) and catalysts in promoting the production of reactive species for water remediation was investigated. By altering the oxygen vacancies concentration of CeO2/Bi2O3 catalyst, the production of hydrated electrons was stimulated for PFOA removal. The results showed that the built-in electric field in the Bi/Ce0.43 interface enhanced electron migration and eaq- generation, leading to improved PFOA removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yushan Wu, Di Xu, Yanfei Xu, Xin Tian, Mingyue Ding
Summary: Efficient synthesis of primary amines from carbonyl compounds was achieved via reductive amination using Ru@NC-Al2O3 as a catalyst, exhibiting high activity and selectivity under mild conditions.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yilan Jiang, Peifang Wang, Tingyue Chen, Keyi Gao, Yiran Xiong, Yin Lu, Dionysios D. Dionysiou, Dawei Wang
Summary: By controlling the content of Co and Ni in Co1-xNixFe2O4, the production of O-1(2) from H2O2 can be regulated. NiFe2O4, with the lowest lattice distortion degree, can efficiently produce O-1(2) as the dominant reactive oxygen species. The system also exhibits significant resistance to water matrix interference.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Jia-Cheng E. Yang, Min -Ping Zhu, Daqin Guan, Baoling Yuan, Darren Delai Sun, Chenghua Sun, Ming-Lai Fu
Summary: This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Tao Zhong, Su Tang, Wenbin Huang, Wei Liu, Huinan Zhao, Lingling Hu, Shuanghong Tian, Chun He
Summary: In this study, a highly efficient photocatalyst for the elimination of CH3SH was developed by engineering different crystal facets and coupling them with PHI. Cu (111)/PHI exhibited the highest elimination efficiency and showed good stability and reusability. The enhanced surface electron pump effect and effective adsorption mechanisms were revealed through comprehensive characterizations and DFT calculations.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Feifei Yang, Tianyu Zhang, Jiankang Zhao, Wei Zhou, Nicole J. Libretto, Jeffrey T. Miller
Summary: A Ni3Sn intermetallic nano particle was found to have geometrically isolated Ni sites that could selectively cleave C-O bonds in biomass derivatives. This nano particle showed high activity and selectivity towards 2-methylfuran, unlike Ni nanoparticles that produced other unwanted products derived from the aromatic rings.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Lulu Qiao, Di Liu, Anquan Zhu, Jinxian Feng, Pengfei Zhou, Chunfa Liu, Kar Wei Ng, Hui Pan
Summary: This study reveals that surface evolution plays a crucial role in enhancing the electrocatalytic performance of transition metal oxides for electrochemical nitrate reduction reaction (e-NO3RR). Incorporating nickel into Co3O4 can promote surface reconstruction and improve the adsorption of intermediates and reduce energy barriers, leading to enhanced catalytic performance. The reconstructed cobalt-nickel hydroxides (CoyNi1_y(OH)2) on the catalyst's surface serve as the active phase.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Xinyu Song, Yang Shi, Zelin Wu, Bingkun Huang, Xinhao Wang, Heng Zhang, Peng Zhou, Wen Liu, Zhicheng Pan, Zhaokun Xiong, Bo Lai
Summary: This study explores the discriminative activities and mechanisms for activation of O-O bond in peroxy compounds via single-atom catalysts (SACs) with higher coordination numbers (M-N5). The atomic catalyst (Fe-SAC) with Fe-N5 as the active center was constructed, effectively activating peroxymonosulfate (PMS), peroxydisulfate (PDS), and hydrogen peroxide (H2O2). The study demonstrates the degradation efficiencies of acyclovir are related to the O-O bond length in different peroxy compounds, and reveals the discriminative mechanisms for activation of O-O bond in different Fenton-like systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Yangzhuo He, Hong Qin, Ziwei Wang, Han Wang, Yuan Zhu, Chengyun Zhou, Ying Zeng, Yicheng Li, Piao Xu, Guangming Zeng
Summary: A dual-metal-organic framework (MOF) assisted strategy was proposed to construct a magnetic Fe-Mn oxycarbide anchored on N-doped carbon for peroxymonosulfate (PMS) activation. The FeMn@NC-800 catalyst exhibited superior activity with almost 100% degradation of sulfamethazine (SMZ) in 30 minutes. The study provided insights for the rational design of high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)