Article
Chemistry, Multidisciplinary
Arindam Indra, Rodrigo Beltran-Suito, Marco Mueller, Ramesh P. Sivasankaran, Michael Schwarze, Amitava Acharjya, Bapi Pradhan, Johan Hofkens, Angelika Brueckner, Arne Thomas, Prashanth W. Menezes, Matthias Driess
Summary: The study investigated the dynamics of hole transfer from Pt-loaded sol-gel-prepared graphitic carbon nitride photocatalyst, using different adsorbed hole acceptors and a sacrificial agent. A significant increase in H-2 production was achieved by employing phenothiazine as the hole acceptor, with continuous H-2 production for 3 days. The charge-transfer dynamics of the photocatalytic process in the presence of hole acceptors were examined through time-resolved photoluminescence and in situ electron paramagnetic resonance studies.
Article
Chemistry, Multidisciplinary
Jingjie Lai, Lijun Ding, Cunhao Fan, Jie Wei, Jing Qian, Kun Wang
Summary: A novel method was developed to prepare surface zinc vacancies in ZnO nanorod arrays, which exhibit high electron-hole separation efficiency and excellent photoelectrochemical performance, making them a promising candidate for the next generation of organic photoelectrochemical transistor aptasensors.
CHEMICAL COMMUNICATIONS
(2022)
Article
Environmental Sciences
Shanavas Shajahan, Abu Haija Mohammad
Summary: Pharmaceutical contaminations in water resources pose a serious environmental issue, and this study aims to remove these pharmaceutical molecules from water. 3D/3D/2D-Co3O4/TiO2/rGO nanostructures were synthesized using a solvothermal method and optimized using response surface methodology. The nanocomposite exhibited improved photocatalytic performance due to the formation of 3D/3D/2D heterojunction nanochannels and the role of 2D-rGO in reducing recombination processes. Photodegradation experiments showed that the 6:4 M ratio of Co3O4:TiO2 with 5% rGO had significantly higher degradation ability against tetracycline and ibuprofen compared to pristine Co3O4 nanostructures.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Physical
Sheng He, Qiuyang Li, Tao Jin, Tianquan Lian
Summary: We investigated the valence band hole state filling effect in CdSe quantum dots and revealed its mechanism by comparing the TA spectra of CdSe quantum dots with different degrees of hole trapping and selectively removing conduction band electrons. Our results showed that the valence band hole contributes significantly to the exciton bleach in CdSe/CdS core/shell quantum dots with high photoluminescence quantum yield, while a negligible hole state filling signal is observed in CdSe core only quantum dots with low photoluminescence quantum yield.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
B. Flipon, V Grand, B. Murgas, A. Gaillac, A. Nicolay, N. Bozzolo, M. Bernacki
Summary: This paper details an image analysis procedure for estimating grain size distribution from optical and scanning electron micrographs, discussing the definition of grain size, classical methodologies, and the impact of data processing parameters on results. The study compares results obtained through electron backscattered diffraction analysis and image analysis based on backscattered electron or optical micrographs, showing the latter to be more efficient in obtaining accurate grain size distribution information.
MATERIALS CHARACTERIZATION
(2021)
Article
Multidisciplinary Sciences
Giovanni Di Liberto, Angel Morales-Garcia, Stefan T. Bromley
Summary: From grain boundaries and heterojunctions to manipulating 2D materials, solid-solid interfaces have important applications in various technologies. However, understanding and predicting properties of these complex systems remains a challenge. In this paper, the authors present an unconstrained and generally applicable non-periodic screening approach for systematic exploration of material's interfaces, providing a detailed and comprehensive understanding of interface structure and energetic stability. They validate the method with the TiO2 anatase (101)/(001) and TiO2 anatase (101)/rutile (110) interfaces.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Tomasz Gawenda, Agnieszka Surowiak, Aldona Krawczykowska, Agata Stempkowska, Tomasz Niedoba
Summary: This article presents an analysis of the separation results achieved by a specially designed and activated light fraction separator for removing impurities from mineral aggregates. The experiments conducted on a quarter-scale in the laboratory revealed that the separator yielded excellent results, with impurity percentages in the product below 1% in accordance with the assumed technological standard. The study also determined the optimal operating ranges of the separator and its model dependencies.
Article
Chemistry, Applied
Xianwen Zhang, Zheng Li, Bin Zeng, Can Li, Hongxian Han
Summary: This work investigates the light-induced charge separation and the effect of O2 on electron transfer processes in SrTiO3. It was found that under vacuum condition, photoinduced electron transfer from O2- to Ti4+ produced Ti3+ and O- redox radical pairs. Under oxygen atmosphere, however, surface bound superoxide radicals O2 were formed by electron reduction of adsorbed oxygen at initial photoirradiation stage, and quenched by the reverse electron transfer to Ti4+ upon further photoirradiation.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Physical
Genki Tsukamoto, Tomonori Kunieda, Shigeto Yamasaki, Masatoshi Mitsuhara, Hideharu Nakashima
Summary: The study investigated the effects of grain boundary, grain size, and deformation temperature on twinning deformation in polycrystalline commercially pure titanium. Different twinning systems were observed at different deformation temperatures and grain sizes, indicating the complex interplay between these factors in twinning deformation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Artem Pogodin, Mykhailo Filep, Tetyana Malakhovska, Vasyl Vakulchak, Vladimir Komanicky, Serhii Vorobiov, Vitalii Izai, Leonid Satrapinskyy, Iryna Shender, Vitaliy Bilanych, Oleksandr Kokhan, Peter Kus
Summary: This research studied ceramic materials based on Ag-6.75(P0.25Ge0.75)S5I nanopowders with different grain size. The prepared ceramic samples showed chemical homogeneity, small grain size, and low porosity. The electrical parameters of the ceramics were characterized and it was found that the nanoceramic samples had higher ionic conductivity compared to the bulk single crystalline sample. The influence of grain size and recrystallization process on the electrical parameters of Ag-6.75(P0.25Ge0.75)S5I ceramics was explained.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Applied
Caizhi Lv, Jiale Zhang, Lan Wu, Gangfeng Ouyang, Xiandeng Hou
Summary: By calcining CO32--doped hydroxyapatite, oxygen vacancies are introduced to enable visible light response in the formed OV-HAp. The OV-HAp/CS membrane formed by the hetero-junction with chitosan membrane exhibits a faster degradation rate of tetracycline under visible light compared to its counterparts, attributed to its better adsorption capacity and faster photogenerated charge separation. DFT calculation confirms the formation of defect levels and a narrowed band gap in OV-HAp, while the tightly contacted interface between OV-HAp and CSM provides a charge separation channel.
CARBOHYDRATE POLYMERS
(2023)
Article
Chemistry, Multidisciplinary
Sara T. Gebre, Laura M. Kiefer, Facheng Guo, Ke R. Yang, Christopher Miller, Yawei Liu, Clifford P. Kubiak, Victor S. Batista, Tianquan Lian
Summary: In this study, the photoinduced CO2 reduction over a broad range of the solar spectrum was achieved by constructing ReC0A catalysts heterogenized on Cd3P2 quantum dots. The addition of triethylamine was found to enhance the electron transfer efficiency from Cd3P2 to ReC0A.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Physics, Multidisciplinary
Shaozhi Li, Alberto Nocera, Umesh Kumar, Steven Johnston
Summary: The study investigates the role of oxygen degrees of freedom in high-temperature superconducting cuprates and their relevance to resonant inelastic x-ray scattering experiments. Results suggest that explicit inclusion of oxygen degrees of freedom is necessary to fully understand some experimental observations on cuprate materials.
COMMUNICATIONS PHYSICS
(2021)
Article
Multidisciplinary Sciences
Nafees Ahmad, Jerry Anae, Mohammad Zain Khan, Suhail Sabir, Pablo Campo, Frederic Coulon
Summary: A novel CuBi2O4/PANI composite photocatalyst was successfully synthesized and demonstrated excellent performance in ammonia degradation in water, including good stability and high photocatalytic activity. The composite photocatalyst has the advantages of simple synthesis process, excellent adsorption capacity, and reusability, making it a promising technology for wastewater treatment.
Article
Engineering, Environmental
Shikang Yin, Linlin Sun, Yaju Zhou, Xin Li, Jinze Li, Xianghai Song, Pengwei Huo, Huiqin Wang, Yongsheng Yan
Summary: The study introduces a method to enhance the efficiency of semiconductor photocatalysis for CO2 reduction by carbon and nitrogen hybridization and precious metal modification. Experimental results show that modification with Au nanoparticles can improve carrier separation and enhance photocatalytic activity.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Ann M. Ploskonka, Jared B. DeCoste
JOURNAL OF HAZARDOUS MATERIALS
(2019)
Article
Nanoscience & Nanotechnology
Joseph M. Palomba, Steven P. Harvey, Mark Kalaj, Brian R. Pimentel, Jared B. DeCoste, Gregory W. Peterson, Seth M. Cohen
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Physical
Jaspreet Singh Nagi, Kenneth Skorenko, William Bernier, Wayne E. Jones, Amber L. Doiron
Article
Chemistry, Physical
Mohammad Rasel Mian, Louis R. Redfern, Saied Md Pratik, Debmalya Ray, Jian Liu, Karam B. Idrees, Timur Islamoglu, Laura Gagliardi, Omar K. Farha
CHEMISTRY OF MATERIALS
(2020)
Article
Chemistry, Physical
Xingjie Wang, Xuan Zhang, Riddhish Pandharkar, Jiafei Lyu, Debmalya Ray, Ying Yang, Satoshi Kato, Jian Liu, Megan C. Wasson, Timur Islamoglu, Zhong Li, Joseph T. Hupp, Christopher J. Cramer, Laura Gagliardi, Omar K. Farha
Article
Chemistry, Multidisciplinary
Ahmet Atilgan, M. Mustafa Cetin, Jierui Yu, Yassine Beldjoudi, Jian Liu, Charlotte L. Stern, Furkan M. Cetin, Timur Islamoglu, Omar K. Farha, Pravas Deria, J. Fraser Stoddart, Joseph T. Hupp
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Article
Chemistry, Multidisciplinary
Zhiyong Lu, Jian Liu, Xuan Zhang, Yijun Liao, Rui Wang, Kun Zhang, Jiafei Lyu, Omar K. Farha, Joseph T. Hupp
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Article
Nanoscience & Nanotechnology
Jian Liu, Zhiyong Lu, Zhijie Chen, Martino Rimoldi, Ashlee J. Howarth, Haoyuan Chen, Selim Alayoglu, Randall Q. Snurr, Omar K. Farha, Joseph T. Hupp
Summary: The research found that ammonia can be adsorbed by zirconium-based metal-organic framework material NU-1000 through both physisorption and chemisorption, with reversible and irreversible processes. Different adsorption modes are influenced by thermal treatment and structural distortion.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Jian Liu, Zhijie Chen, Rui Wang, Selim Alayoglu, Timur Islamoglu, Seung-Joon Lee, Thomas R. Sheridan, Haoyuan Chen, Randall Q. Snurr, Omar K. Farha, Joseph T. Hupp
Summary: The study found that NU-1000-Cl has enhanced capacity for both reversible and irreversible uptake of ammonia compared to the chloride-free version. The presence of chloride ions also facilitates irreversible reactions between ammonia and NU-1000-Cl. The chemical interactions between ammonia and NU1000-Cl result in the separation of NH3 from N-2 at room temperature.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Yijun Liao, Thomas Sheridan, Jian Liu, Omar Farha, Joseph Hupp
Summary: This study investigates the effects of product inhibition on catalytic activity in the degradation of chemical warfare agents, particularly those containing a phosphorous-fluorine bond. Results indicate substantial product inhibition on catalyst activity after several turnovers, with apparent product binding constants obtained to quantitatively describe the inhibition effects over time. The study highlights the importance of understanding product inhibition in the catalytic hydrolysis of chemical warfare agents.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Xianbiao Fu, Jian Liu, Siriluk Kanchanakungwankul, Xiaobing Hu, Qin Yue, Donald G. Truhlar, Joseph T. Hupp, Yijin Kang
Summary: The development of a bimetallic Pd/Cu(111) catalyst has shown promising catalytic performance for acetylene semihydrogenation to ethylene, with high selectivity. This work bridges the gap between surface-science catalysis and practical catalysis, providing a new strategy for achieving highly selective semihydrogenation reactions.
Article
Energy & Fuels
Linyue Tong, Laura A. Sonnenberg, Wei Wu, Steven M. Boyer, Maggie T. Fox, Boxiao Li, William E. Bernier, Wayne E. Jones
Summary: Composite porous supercapacitor electrodes were prepared by growing PEDOT on PU sponges deposited with graphite or graphene nanoplatelets using a VPP method. The study found that the carbon material and PEDOT polymerization temperature significantly affected the morphology and electrical properties of the composite sponges. The resulting electrodes showed high performance, excellent long-term cycling stability, and promising potential for supercapacitor applications.
Article
Chemistry, Multidisciplinary
Zhiyong Lu, Rui Wang, Yijun Liao, Omar K. Farha, Wentuan Bi, Thomas R. Sheridan, Kun Zhang, Jiaxin Duan, Jian Liu, Joseph T. Hupp
Summary: By introducing steric hindrance, a new hierarchically porous MOF material, NU-601, was synthesized, showing high catalytic activity for degradative hydrolysis of a simulant for G-type fluoro-phosphorus nerve agents.
CHEMICAL COMMUNICATIONS
(2021)
Article
Biochemical Research Methods
Marilyn S. Lee, Matthew W. Lux, Jared B. DeCoste
Review
Chemistry, Multidisciplinary
Timothy A. Goetjen, Jian Liu, Yufang Wu, Jingyi Sui, Xuan Zhang, Joseph T. Hupp, Omar K. Farha
CHEMICAL COMMUNICATIONS
(2020)
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)