Article
Chemistry, Physical
Ranjana Verma, Jay Singh, S. K. Samdarshi, Anchal Srivastava
Summary: A fundamental understanding of the dynamism of charge-transfer characteristic at different phases and pH combinations is essential for the development of highly efficient light harvesting photocatalysts. This study explores the phase modulation at different pH values and its relationship with photocatalytic activities, demonstrating that pH control can be used to manipulate the phase transition and size of TiO2 nanoparticles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Pavel Tkachenko, Victoria Volchek, Anna Kurenkova, Evgeny Gerasimov, Pavel Popovetskiy, Igor Asanov, Irina Yushina, Ekaterina Kozlova, Danila Vasilchenko
Summary: A new protocol for depositing platinum oxide particles onto TiO2 semiconductor using controllable hydrolysis of Pt(IV) hydroxide was developed. The prepared PtOx/TiO2 photocatalysts exhibit good activity for hydrogen production from aqueous ethanol and glucose solutions. The catalysts show high stability and efficiency, with even a low platinum content achieving significant hydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Multidisciplinary Sciences
Bruno C. B. Salgado, Antoninho Valentini
Summary: In this study, SiO2@TiO2 spheres were synthesized using chitosan as a template, and their catalytic performance in selective photocatalytic oxidation of benzyl alcohol to benzaldehyde and reduction of nitrobenzene to aniline reactions was investigated. The spheres showed predominantly macroporous structure and amorphous crystallographic profile indicating the uniform distribution of TiO2. Under low-power lighting for 4 hours, the conversions achieved were 49% and 99% for benzyl alcohol and nitrobenzene, respectively, with selectivity to benzaldehyde and aniline of 99% in both reactions.
ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS
(2023)
Article
Engineering, Environmental
Mengwen Li, Ao Shen, Man Du, Xiaohui Hao, Xiaoyu Du, Jiaxin Yuan, Shufeng Ma, Yongwei Zhao, Lala Hou, Ziqi Li, Yunxu Yang
Summary: A new NMOFs-NADH model (UiO-66-NADH) with a self-adaptive pore radius to selectively capture and remove FA in aqueous and gaseous phases has been designed and synthesized. It efficiently converts FA to methanol with the catalysis of Fe-TCPP and can be regenerated by g-C3N4 via photocatalysis. The UiO-66-NADH/Fe-TCPP system shows great potential in environmental protection.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Electrical & Electronic
L. A. Al-Hajji, Adel A. Ismail, A. Bumajdad, M. Alsaidi, S. A. Ahmed, F. Almutawa, A. Al-Hazza
Summary: A simple photoreduction method was used to deposit Au nanoparticles into mixed phase titanium dioxide nanowires, resulting in Au/TiO2 materials with excellent photocatalytic properties. Among the synthesized samples, the 0.1% Au/TiO2 catalyst showed the highest photocatalytic efficiency for resorcinol degradation.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
Muhammad Asjad, Muhammad Arshad, Naveed A. Zafar, M. Abdullah Khan, Azhar Iqbal, Abida Saleem, Afrah Aldawsari
Summary: This study presents a strategy for controlling the crystal structure transition of TiO2 from anatase phase to pure rutile phase, leading to enhanced photoluminescence and photocatalytic activity in the mixed phase sample. The findings highlight the importance of fine-tuning the structure-property relationships in materials to improve their performance.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Physical
Bowen Wang, Anabel E. Lanterna, Juan C. Scaiano
Summary: The study reveals significant differences in the desorption kinetics of probe molecules depending on the chemical nature of the catalysts. Palladium catalysts exhibit faster conversion rates from alkenes to alkanes compared to molybdenum/cobalt catalysts, indicating differences in selectivity between the two.
Article
Materials Science, Ceramics
Petronela Pascariu, Corneliu Cojocaru, Mihaela Homocianu, Petrisor Samoila, Cosmin Romanitan, Djourelov Nikolay
Summary: A series of tin (Sn)-doped titania (TiO2) composites were prepared by electrospinning and calcination. The effect of dopant amounts and calcination temperatures on the composition, morphology, and photocatalytic activity of the composites was evaluated. The ([1.5%]Sn:TiO2) composite sintered at 500°C showed remarkable photocatalytic activity with a removal efficiency of about 100% and a rate constant of 9.685 x 10-2 min-1. Structural investigations were conducted to explain the photocatalytic activity towards water decontamination.
CERAMICS INTERNATIONAL
(2023)
Article
Green & Sustainable Science & Technology
Vanish Kumar, Sherif A. Younis, Jan E. Szulejko, Ki-Hyun Kim
Summary: This study evaluates the photocatalytic removal potential of BiOI photocatalysts in their pristine and composite forms against gaseous Hg-0. The results show promising performance in certain performance metrics, but there are still challenges and limitations to be addressed.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Chemistry, Physical
Yongqin Yue, Jian Zou
Summary: The phase composition of the photocatalyst plays a significant role in its photocatalytic activity. In this study, rhombohedral phase ZnIn2S4 was synthesized through a one-step hydrothermal method by using inexpensive Na2S as a sulfur source with the assistance of NaCl. The rhombohedral ZnIn2S4 nanosheets exhibited higher separation efficiency of photogenerated carriers and showed excellent visible photocatalytic activity in the removal of methyl orange, ciprofloxacin hydrochloride, and Cr(VI).
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Amanda Chen, Wen-Fan Chen, Tina Majidi, Bernadette Pudadera, Armand Atanacio, Madhura Manohar, Leigh R. Sheppard, Rong Liu, Charles Christopher Sorrell, Pramod Koshy
Summary: Uniformly codoped anatase TiO2 thin films with equal Mo and Cr concentrations were fabricated using sol-gel spin coating and ion implantation. Both methods did not result in homogeneous dopant distributions, leading to decreased crystallinities and partial amorphisation. The photocatalytic performances of the films were poor and correlated with the band gap, indicating the effects of different doping methods on performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Georgios Angelis, Georgios Sant, Ioannis S. Vizirianakis, Georgios Pampalakis
Summary: Chemobrionic architectures are generated by slowly injecting aqueous silicate solution into gaseous TiCl4. These structures were characterized using XRD, SEM, and wet chemistry control experiments, and their formation mechanism was discovered. They serve as laboratory models for studying the formation of calthemites or soda straws.
CHEMICAL COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Ana C. Marques, Mario Vale, Daniel Vicente, Murielle Schreck, Elena Tervoort, Markus Niederberger
Summary: In this study, inorganic silica microspheres are utilized as a platform for designing photocatalytic systems for wastewater treatment through solar-driven photocatalysis. The photocatalytically active microspheres are prepared by wet impregnation with TiO2 nanoparticles, leading to an increase in specific surface area and retention of macroporosity. The microspheres exhibit high photocatalytic activity and can be easily removed from the reaction medium, addressing typical challenges associated with TiO2 nanoparticles photocatalysts.
Article
Chemistry, Applied
Victor Chausse, Jordi Llorca
Summary: A quartz microreactor with 28 microchannels was used to photoproduce hydrogen from liquid water-ethanol using an Au/TiO2 photocatalyst and UV light. The catalytic wall photoreactor configuration outperformed the slurry photoreactor configuration, with hydrogen yields more than three times higher under the same operation conditions.
Article
Thermodynamics
M. H. Sawal, A. A. Jalil, T. A. T. Abdullah, N. F. Khusnun, N. S. Hassan, F. F. A. Aziz, A. A. Fauzi, M. F. A. Kamaroddin, M. F. Omar, S. Haron
Summary: In this study, fibrous silica titania (FST) with a bicontinuous concentric lamellar structure and high surface area was fabricated by microemulsion method and used as a photoanode for PEC water splitting. The FST exhibited higher photocurrent density and STH efficiency compared to commercial TiO2, indicating its potential as a high-performance photoanode. The inclusion of Ti in the silica matrix induced Si-Ti interaction and narrowed the band gap, leading to fast charge transfer and spontaneous production of H2.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Chemistry, Physical
Tim Van Everbroeck, Jianxiong Wu, Daniel Arenas-Esteban, Radu-George Ciocarlan, Myrjam Mertens, Sara Bals, Christophe Dujardin, Pascal Granger, Elena M. Seftel, Pegie Cool
Summary: This research presents a novel approach for developing noble metal-free three-way catalysts using ZnAl layered double hydroxide (LDH) co-precipitated with Mn and Ti. The addition of Cu during the co-precipitation step and a post-synthesis method using the LDH memory effect were explored. The results showed that smaller CuO particle size resulted in better performance for oxidation reactions. The addition of Mn had a positive effect on the general performance of the catalysts, while the presence of Ti mainly improved the NO conversion. The developed materials showed good stability in consecutive catalytic testing cycles and even showed some NO conversion under stoichiometric conditions.
APPLIED CLAY SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Ana Belen Dongil, Elodie Blanco, Juan Jose Villora-Pico, Antonio Sepulveda-Escribano, Inmaculada Rodriguez-Ramos
Summary: The synthesis of methanol by carbon dioxide hydrogenation using copper-molybdenum carbides supported on various materials was studied. The effects of synthesis conditions and the support on the catalyst were investigated. The results showed that the catalyst prepared on high surface area graphite achieved the highest selectivity to methanol.
Article
Chemistry, Applied
Bram Pawlak, Wouter Marchal, Bharadwaj Mysore Ramesha, Bjorn Joos, Lavinia Calvi, Jan D'Haen, Bart Ruttens, An Hardy, Vera Meynen, Peter Adriaensens, Robert Carleer
Summary: Hybrid titania phosphonate materials have great potential as tailored sorption materials with high added value. By incorporating different functional groups, they possess high chemical stability and structural versatility. In this study, three porous titania phosphonate hybrid structures with different functional groups were synthesized and evaluated for solvent separation. The results showed that diphosphonic acids were effectively incorporated into the hybrid structures, resulting in nanosized particles with a complex but uniquely functionalized surface. The materials demonstrated excellent and tunable sorption behavior.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jinxin Wang, Kaimin Zhang, Safiyye Kavak, Sara Bals, Vera Meynen
Summary: The Stober method is an important process for synthesizing inorganic (nano)materials, but it uses a large amount of organic solvent. This study found that the organic solvent can be omitted in the Stober method, and silica particles with the same size can be successfully synthesized without addition of organic solvents. This method has potential applications in the synthesis of other materials.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Wencong Xu, Myrjam Mertens, Thomas Kenis, Elien Derveaux, Peter Adriaensens, Vera Meynen
Summary: The rehydration behavior of metal oxides derived from calcination of Mg-Al layered double hydroxides (LDHs) at high temperatures was studied. The results showed that the metal oxides obtained from thermally treated LDHs can rehydrate into LDHs at room temperature, even after calcination as high as 900 degrees C. Additional analysis revealed differences between the as-synthesized LDHs and the rehydrated metal oxides, suggesting that the process of rehydration resulted in a new LDH rather than reconstructing the former LDH. Therefore, careful storage is recommended to prevent rehydration reactions to altered LDH materials.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Nikolas Kiraly, Dominika Capkova, Robert Gyepes, Nikola Vargova, Tomas Kazda, Jozef Bednarcik, Daria Yudina, Tomas Zelenka, Pavel Cudek, Vladimir Zelenak, Anshu Sharma, Vera Meynen, Virginie Hornebecq, Andrea Strakova Fedorkova, Miroslav Almasi
Summary: Two new alkaline earth metal-organic frameworks, UPJS-15 and UPJS-16, were synthesized and characterized. UPJS-15 exhibited one-dimensional channels with a size of approximately 11 x 10 angstrom(2) and showed high adsorption capacity for CO2. UPJS-16, on the other hand, did not show significant adsorption for the tested gases.
Article
Chemistry, Multidisciplinary
Nick Gys, Rui An, Bram Pawlak, David Vogelsang, Kenny Wyns, Kitty Baert, Alexander Vansant, Frank Blockhuys, Peter Adriaensens, Tom Hauffman, Bart Michielsen, Steven Mullens, Vera Meynen
Summary: Amino-alkylphosphonic acid-grafted TiO2 materials have gained increasing interest in various applications. This study investigates the impact of chain length and modification conditions on the surface properties and adsorption performance of palladium. The results reveal differences in surface properties and interactions between different chain lengths, as well as the influence of chain length on pH stability and adsorption capacity.
Article
Engineering, Environmental
Jinxin Wang, Kaimin Zhang, Annemie Bogaerts, Vera Meynen
Summary: The effect of pore size on plasma catalysis is still unknown. In this study, 3D porous Cu and CuO with different pore sizes were prepared and compared in plasma-catalytic dry reforming. It was found that smaller pores led to higher conversion rates of CH4 and CO2, which provides valuable references for future research on plasma catalysts.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Jinxin Wang, Kaimin Zhang, Vera Meynen, Annemie Bogaerts
Summary: The performance of dielectric barrier discharge (DBD) plasma reactors in environmental and energy processes is limited due to their low energy yield. In this study, stainless steel rings were placed on the inner electrode rod of the DBD reactor to change the discharge gap and electric field, resulting in improved dry reforming performance. At 50 W supplied power, the rings negatively impacted the performance due to non-uniform discharge distribution. However, at 30 W supplied power, the rings improved the performance, and more rings with a larger diameter further enhanced it. The presence of rings increased the local electric field, displaced charge, discharge fraction, stability, and selectivity to syngas.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Mitra De Geest, Bart Michielsen, Radu-G. Ciocarlan, Pegie Cool, Elena M. Seftel
Summary: This study focuses on the removal of chromium using structured calcined layered double hydroxide (LDH) (MgAl)-bentonite composites through adsorption and ion exchange. The powders were structured into granulates to overcome the limitations of working with powders in real-life applications, and the regeneration of the composites was optimized for multi-cycling operation. The optimized LDH/bentonite ratio showed excellent performance for the removal of Cr3+ and Cr6+ species, and the desorption process was optimized using a 2 M NaCl solution without pH modification.
Article
Chemistry, Multidisciplinary
Nick Gys, Bram Pawlak, Kristof Marcoen, Gunter Reekmans, Leticia F. Velasco, Rui An, Kenny Wyns, Kitty Baert, Kaimin Zhang, Leon Luntadila Lufungula, Alessandra Piras, Laurens Siemons, Bart Michielsen, Sabine Van Doorslaer, Frank Blockhuys, Tom Hauffman, Peter Adriaensens, Steven Mullens, Vera Meynen
Summary: This study reports on the impact of different ageing conditions on the surface properties of organophosphonic acid grafted mesoporous TiO2. It reveals that under humid conditions with ambient light exposure, the surfaces initiate photo-induced oxidative reactions, resulting in the formation of phosphate species and degradation of the grafted organic group. By understanding the mechanism, solutions to prevent degradation were provided. This work provides valuable insights for the community in choosing optimal exposure/storage conditions to improve material performance and prolong lifetime, positively impacting sustainability.
Article
Chemistry, Physical
Jinxin Wang, Kaimin Zhang, Myrjam Mertens, Annemie Bogaerts, Vera Meynen
Summary: This study provides new insights into the effect of (sub)micrometer particle sized materials on plasma-based CO2CH4 reforming. SiO2 spheres with varying particle sizes, including supported metal, were used. The optimal performance was achieved using 740 nm 5 wt% Ni loaded SiO2, significantly improving CO2 and CH4 conversion and energy yield in a fully packed reactor. These findings highlight the importance of selecting a suitable particle size and can guide the rational design of catalysts for plasma-based reactions.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Bharadwaj Mysore Ramesha, Bram Pawlak, Daniel Arenas Esteban, Gunter Reekmans, Sara Bals, Wouter Marchal, Robert Carleer, Peter Adriaensens, Vera Meynen
Summary: The hydrolysis of the phosphonate ester linker is important for the synthesis of porous hybrid organic-inorganic metal phosphonates. This study controlled the in-situ partial hydrolysis of the diphosphonate ester and assessed its impact on the hybrid nanoparticles. The increased acid concentration resulted in a higher degree of partial hydrolysis of the ester linker, affecting the bonding between the linker and TiO2. Understanding the surface dynamics of the linker-TiO2 nanoparticles is crucial for applications in electronic/photonic devices, separation technology, and heterogeneous catalysis.
Article
Green & Sustainable Science & Technology
Wei Jin, Jesus Gandara-Loe, Laura Pastor-Perez, Juan J. Villora-Pico, Antonio Sepulveda-Escribano, Roberto Rinaldi, Tomas Ramirez Reina
Summary: This study proposes an integrated approach combining aqueous phase reforming (APR) and hydrodeoxygenation (HDO) for the hydrotreatment of guaiacol, a model compound representing lignin-derived phenols in pyrolysis bio-oils. The study explores the effect of metal species, Pt-promoting effect on Ni-Pt catalyst supported on activated carbon (AC), and the choice of hydrogen source (methanol or glycerol) on the conversion of guaiacol. The findings highlight the significant improvement in guaiacol conversion with bimetallic Ni-Pt/AC catalysts using methanol as the hydrogen source, and the importance of hydrogen source selection for catalyst performance and stability.
Article
Chemistry, Physical
Rui An, Lourdes Chukiwanka Quinones, Nick Gys, Elien Derveaux, Kitty Baert, Tom Hauffman, Peter Adriaensens, Frank Blockhuys, Vera Meynen
Summary: The dependence of modification degree and phosphorus chemical environment on pH and chain length was investigated in this study. The results showed that pH had a clear impact on surface modification degrees, with different responses for alkyl- and aminoalkylphosphonic acids. The study also found correlations between aminoalkyl chain length and the NH2/NH3+ ratio, as well as between modification degree and the protonation degree of the amine group.
APPLIED SURFACE SCIENCE
(2023)
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)
