Article
Chemistry, Multidisciplinary
Purnesh Chattopadhyay, Maria Camila Ariza-Tarazona, Erika Iveth Cedillo-Gonzalez, Cristina Siligardi, Juliane Simmchen
Summary: Microplastics pose a significant environmental threat, compounded by the lack of efficient removal techniques. Photocatalytic semiconducting nanoparticles show promise in degrading micropollutants, including microplastics. This study presents a novel approach by integrating self-propulsion, phoretic assembly, and photocatalytic oxidation into a single Pac-Man TiO2 micromotor, allowing for active collection and degradation of microplastics. The experiments focus on polystyrene microspheres as model microplastics, correlating degradation with catalytic activity and evaluating timescales for the involved processes.
Article
Physics, Condensed Matter
Furqan Ahmad, Rafaqat Hussain, A. Shah, Shams ur Rahman
Summary: This study investigates the photocatalytic properties of SnO2-CuSe nanocomposites with varying amounts of CuSe. The results show that the sample with 32% CuSe content exhibits the best photocatalytic performance. The fabrication of the samples was confirmed to be successful without any impurities using XRD, Raman spectroscopy, and EDAX analysis.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Materials Science, Multidisciplinary
Wenxiang An, Xueqing Pei, Hongli Zhao, Tengfei Bi, Yuechun Fu, Xiaoming Shen, Huan He
Summary: O-doped porous g-C3N4 (OPCN) photocatalyst was successfully synthesized and showed enhanced photocatalytic degradation performance due to decreased bandgap, enlarged absorption range, increased specific surface area, and improved transfer and separation efficiencies of photogenerated electron-hole pairs.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yiyan Cai, Shuo Zhang, Weizhi Zhu, Haohang Fang, Hongjie Wang, Shaohong Shi, Jianping Sun, Yiqiang Wu, Fangchao Cheng
Summary: A simple and efficient cellulose-induced strategy was developed to fabricate Bi2SiO5 nanorods, which exhibited excellent photocatalytic activity for the degradation of organic contaminants under UV/vis light. The addition of cellulose changed the morphology of the catalysts, leading to smaller dimensions and higher surface area. The nanorods showed high light utilization and photocatalytic activity, enabling the complete degradation of RhB solution in a short time.
Article
Materials Science, Multidisciplinary
Salam Hussein Alwan, Karrar Hazim Salem, Hassan Abbas Alshamsi
Summary: In this study, reduced graphene oxide coated titanium dioxide nanocomposites were prepared through a hydrothermal synthetic route. The nanocomposites were found to have good photocatalytic activity for Rhodamine B dye degradation. The composition, optical activity, morphology, and porosity of the nanomaterials were characterized using various techniques. The results showed that the nanocomposites exhibited high efficiency in photocatalytic degradation of the dye.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Yao Xu, Siyuan Zhou, Wensi Dong, Shuo Ma, Xu Yan, Mengxi Liu, Xiyuan Tong, Fang Fang, Zhuozhe Li, Lianshan Chen
Summary: Hydrothermal synthesis was used to synthesize SnCNx photocatalysts with different SnO2 content. SnCN4 photocatalyst exhibited efficient photocatalytic degradation of pollutants under visible light irradiation. The increased photoactivity can be attributed to the synergistic effect between SnO2 and g-C3N4, leading to enhanced visible light absorption. The interface interaction between the two components promotes effective charge transfer, thereby improving visible light absorption. O-2(-) and OH- were identified as the main reaction species in the degradation process, and the possible mechanism was also discussed.
CATALYSIS COMMUNICATIONS
(2022)
Article
Materials Science, Ceramics
Xueyuan Wang, Lihong Bao, Jun Wang, Xiaojian Pan, TaNa Bao, Luo Meng Chao, Juming Liu, Zizhong Liu
Summary: In this study, a novel TaB2@TiO2 heterostructure was successfully constructed by a facile sol-gel method. The TaB2@TiO2 heterojunction exhibited suitable work function and B-O bonds at the interface, facilitating the migration of photogenerated carriers. The metallic nanocrystalline TaB2 also increased the specific surface area, leading to improved photocatalytic degradation performance compared to pristine TiO2 and commercial TiO2 (P25).
CERAMICS INTERNATIONAL
(2023)
Article
Green & Sustainable Science & Technology
S. Jain, N. Kumar, S. Sharma, D. Parmar, R. K. Sharma, M. Tahir, K. Kumari, G. Rani
Summary: In this study, binary and ternary nanostructures were prepared and characterized for their photocatalytic activity in the degradation of Rhodamine B. The results showed that Ag@Bi2O3/SnS2 nanocomposite exhibited the highest photocatalytic activity in acidic medium, with Ag (4 wt%)@Bi2O3/SnS2 (2 wt%) showing excellent performance.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Engineering, Electrical & Electronic
Wenjin Yue, Zhen Wang, Jintao Gong, Ziyao Wang, Yuhang Dong
Summary: This study reported the use of tetrapod CdS for the photodegradation of Rhodamine B, successfully synthesizing tetrapod CdS with a wurtzite structure under specific conditions. The photodegradation efficiency was found to be dependent on the morphologies of tetrapod CdS.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Environmental Sciences
S. Kokilavani, Asad Syed, Abdallah M. Elgorban, Ali H. Bahkali, Hind A. Al-Shwaiman, Rajender S. Varma, Arunava Das, S. Sudheer Khan
Summary: The present study demonstrates the enhanced photodegradation of organic dyes (Congo red and rhodamine B) under visible light irradiation using AgIO4 nanorods decorated on Bi2S3 nanoflakes. The deposition of AgIO4 on Bi2S3 plays a crucial role in improving the photodegradation ability. The nanohybrids showed excellent photodegradation performance and good reusability, making them potential candidates for the removal of organic pollutants from contaminated water bodies.
Article
Materials Science, Multidisciplinary
Soheila Sharafinia, Abdolhadi Farrokhnia, Ensieh Ghasemian Lemraski, Alimorad Rashidi
Summary: In this study, a unique nanohybrid ternary g-C3N4/ZnFe2O4/UiO-66 was successfully prepared using a hydrothermal synthesis technique. The characterization methods confirmed the properties of the prepared nanocomposite. The use of UiO-66 resulted in an expansion of the total surface area of the photocatalyst, improving the degradation of Rhodamine B dye. The improved photocatalytic performance can be attributed to the spatial separation of charge carriers between the suggested materials. The synthesized nanocomposites also showed magnetic properties, making them useful for the separation and collection of the photocatalyst. This nanohybrid ternary can be recycled without apparent loss of its photocatalytic performance, making it a favorable replacement for the treatment of dye pollutants in wastewater.
Article
Chemistry, Physical
M. Geetha, S. Renukadevi, D. Senthil Kumar, S. Ragupathy
Summary: This study investigates the use of Ag-doped TiO2-loaded groundnut shell activated carbon (Ag:TiO2/GNSAC) as a photocatalyst for the removal of rhodamine B dye solution. The photocatalytic activity of TiO2, the effects of Ag doping, and GNSAC loading were examined. The results showed that Ag:TiO2/GNSAC exhibited higher photocatalytic efficiency, making it a promising method for the treatment of pollutants in wastewater.
Article
Chemistry, Physical
Akmal Abbas, Keyan Li, Xinwen Guo, Aimin Wu, Chunshan Song, Hong Yang, Sanam Attique, Aqrab ul Ahmad, Faizan Ali
Summary: A facile polyvinylpyrrolidone (PVP) assisted solvothermal route using mixed solvents was reported to synthesize uniform quaternary chalcogenide Cu2FeSnS4 (CFTS) particles. The addition of PVP played a crucial role in tuning the shape and size of the resulted CFTS particles. Photodegradation experiments showed that CFTS particles had good degradation efficiency towards Rhodamine-B and can be reused in multiple cycles.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Anna Jakiminska, Milosz Pawlicki, Wojciech Macyk
Summary: Understanding the TiO2-assisted phototransformations observed for Rhodamine B derivatives is important for comprehensive knowledge of this dye's behavior. The photocatalytic transformations of Rhodamine B involve N-deethylation, forming Rhodamine-110 instead of chromophore degradation. This research studied the N-deethylation process in solution and solid state, and found that the choice of light wavelength is crucial for controlling the degradation pathway. The process does not require reactive oxygen species, but involves photoinduced electron transfer and radical transformations of the dye.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Engineering, Environmental
Palani Karthik, Siranjeevi Ravichandran, Velusamy Sasikala, Azhagurajan Mukkannan, Jegathalaprathaban Rajesh
Summary: In this study, CA/MnO2 nanocomposites were synthesized using a cost-effective magnetic stirring method. Various characterization techniques were used to evaluate the nanocomposites, and the photocatalytic degradation of rhodamine-B was employed to assess their performance. The results showed a significant decrease in rhodamine-B concentration under UV-visible light, indicating the potential of the CA/MnO2 nanocomposites as efficient visible-light-responsive photocatalysts for water treatment.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Chemistry, Multidisciplinary
Meiqi Zhang, Fabien Grasset, Yuji Masubuchi, Toshihiro Shimada, Thi Kim Ngan Nguyen, Noee Dumait, Adele Renaud, Stephane Cordier, David Berthebaud, Jean-Francois Halet, Tetsuo Uchikoshi
Summary: The Mo cluster-MoS2 composite was synthesized through a one-step sulfurization process using H2/H2S gas flow. The decomposed Mo-6 cluster iodides acted as a template and precursor, forming complex Mo cluster compounds and eventually producing MoS2. After sulfurization, the response of the composite to NH3 gas increased three times while showing conversion from p-type to n-type semiconductor, enhancing its potential for device applications.
Article
Chemistry, Multidisciplinary
Maria Amela-Cortes, Noee Dumait, Franck Artzner, Stephane Cordier, Yann Molard
Summary: A luminescent nanocomposite based on red-NIR phosphorescent molybdenum nanoclusters embedded in an eco-friendly cellulose biopolymer matrix was developed. Homogeneity was maintained up to 20 wt% of cluster complex doping, and annealing hybrids led to a significant increase in their emission efficiency.
Article
Chemistry, Multidisciplinary
Maria Amela-Cortes, Maxence Wilmet, Samuel Le Person, Soumaya Khlifi, Clement Lebastard, Yann Molard, Stephane Cordier
Summary: New nanocomposite materials with UV-NIR blocking properties and hues ranging from green to brown were prepared by integrating inorganic tantalum octahedral cluster building blocks prepared via solid-state chemistry in a PMMA matrix. The oxidation state of the Ta-6 cluster inorganic building blocks can be controlled to tune the optical and blocking properties of the composite. The synthesis involves the solid-state chemical reaction of ternary halide K-4[{Ta6Br12i}Br-6(a)] and the replacement of potassium cations with functional organic cations (Kat(+)) bearing a methacrylate function.
Article
Energy & Fuels
Tatiana Lappi, Stephane Cordier, Yakov Gayfulin, Soraya Ababou-Girard, Fabien Grasset, Tetsuo Uchikoshi, Nikolay G. Naumov, Adele Renaud
Summary: This study investigates the effect of metal/ligand on the photoinduced conductivity properties of two types of cluster core building blocks, {Re6S8i} and {Re6Se8i}, using a comprehensive range of characterization techniques. The composition of {Re(6)Q(8)(i)}-based films (Q = S or Se) significantly affects their optical and electronic properties. By increasing the interactions between the cluster building blocks through heating, the electronic properties can be enhanced. The design of mixed {Re(6)Q(8)(i)}-based photoelectrodes combining n-{Re6S8i} and p-{Re6Se8i} cluster core-based building blocks allows for the optimization of photocurrents, making them attractive for solar cell applications.
Article
Chemistry, Inorganic & Nuclear
Tatiana A. . Pomelova, Charlene Delacotte, Natalia Kuratieva, Pierric Lemoine, Stephane Cordier, SangJun Park, Thierry Guizouarn, Vincent Pelletier, Regis Gautier, Nikolay G. Naumov
Summary: This work presents the synthesis, crystal and electronic structures, and magnetic properties of new quaternary sulfides Cs2Ln3CuS8 (Ln = La-Nd, Sm-Tb). These sulfides are prepared using a reactive flux method and exhibit a new type of structure (C2/m space group) with a layer-like crystal structure. The Cs2Gd3CuS8 compound shows significant magnetic refrigerating properties with a mass entropy change (-Delta SM) of 19.5 J kg-1 K-1 at 3.5 K and Delta H = 5 T.
INORGANIC CHEMISTRY
(2023)
Review
Biochemistry & Molecular Biology
Tomasz Swebocki, Alexandre Barras, Amar Abderrahmani, Kamel Haddadi, Rabah Boukherroub
Summary: In recent years, there has been a significant increase in the number of studies focusing on the synthesis and characterization of deep eutectic solvents (DESs). DESs, known for their stability, ease of synthesis, and ability to tailor properties, are considered one of the greenest solvent families used in various fields such as organic synthesis, catalysis, electrochemistry, and medicine. However, there is a lack of research on specific groups of DESs, particularly those comprising organic acids (OA-DESs), despite their potential in biomedical applications. This review aims to highlight the importance and applications of OA-DESs as antimicrobial agents and drug delivery enhancers, providing valuable insights for future developments in this field.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Inorganic & Nuclear
Tatiana I. Lappi, Yakov M. Gaifulin, Vadim V. Yanshole, Stephane Cordier, Nikolay G. Naumov
Summary: In this study, a high-temperature reaction between ReS2, MoS2, and KCN was investigated, resulting in the formation of a cluster-based K6[Re6-xMoxS8(CN)5] solid solution. The crystal structure is based on chains of [Re6-xMoxS8(CN)6] cluster units. The composition of the product can be varied within the range of x = 2.75-3.63 depending on the sintering temperature of starting sulfides and the reaction temperature with KCN.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Gilles Daigre, Maria S. S. Tarasenko, Alexandra Yu. Ledneva, Nikolai G. G. Naumov, Nathalie Audebrand, Stephane Cordier
Summary: In this study, two inorganic polymeric cluster compounds, Cs[Mn(salen)](3)[{Mo6Br6Se2}(CN)(6)] (1) and (H3O)(TBA)[Mn(salen)](2)[{Mo6Br6Se2}(CN)(6)] (2), were synthesized and their structures were characterized. The compounds were built-up using [{Mo6Br6Se2}(CN)(6)](4-) building blocks and Mn(salen)(+) complexes. The counter cations (Cs+ or TBA(+)) played a crucial role in controlling the interactions between the building blocks and the Mn(salen)(+) groups. Compound 1 was obtained by diffusion of K2Cs2[{Mo6Br6Se2}(CN)(6)] cluster compound into a solution of Mn(salen)ClO4, while compound 2 was obtained by addition of tetrabutylammonium bromide into the solution of Mn(salen)ClO4. The structures of 1 and 2 were discussed and compared with relevant examples from literature.
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
(2023)
Review
Pharmacology & Pharmacy
Shakila Behzadifar, Alexandre Barras, Valerie Plaisance, Valerie Pawlowski, Sabine Szunerits, Amar Abderrahmani, Rabah Boukherroub
Summary: Diabetes poses major economic, social, and public health challenges worldwide and is a leading cause of foot ulcers and amputations. Lack of clinical imaging tools, insulin monitoring, and patients' adherence to treatment contribute to the diabetes epidemic. Advances in polymeric materials show potential for beta-cell imaging and non-invasive drug delivery in managing blood glucose and foot ulcers.
Article
Nanoscience & Nanotechnology
Irene Carrasco, Philipp Ehni, Max Ebert, Noeie Dumait, Gregory Taupier, Maria Amela-Cortes, Claire Roiland, Steiphane Cordier, Julius A. Knoeller, Emmanuel Jacques, Sabine Laschat, Yann Molard
Summary: In this work, it is shown that red near-infrared emissive metal cluster compounds can readily form 1:1 complexes with discotic liquid crystals containing a crown ether, enhancing charge carrier mobility by 5 orders of magnitude compared to organic ligands.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Biochemistry & Molecular Biology
Tatiana I. Lappi, Yakov M. Gayfulin, Adele Renaud, Carmelo Prestipino, Pierric Lemoine, Vadim V. Yanshole, Viktoria K. Muravieva, Stephane Cordier, Nikolai G. Naumov
Summary: A series of new cluster compounds containing {Re4Mo2S8} and {Re3Mo3S8} cores have been synthesized and studied. The clusters with different Re/Mo ratios were obtained as separate compounds, allowing for characterization of their spectroscopic and electrochemical properties. The geometry of the clusters was determined using X-ray diffraction analysis, XAS, and quantum chemical DFT calculations. The results showed that the new clusters exhibit similar properties to clusters based on {Re4Mo2Se8} and {Re3Mo3Se8} cores, including the number and position of electrochemical transitions, electronic structure, and changes in geometry upon charge variation.
Article
Chemistry, Multidisciplinary
Anam Fatima, Yevheniia Smortsova, Clement Falaise, Nathalie Leclerc, Mohamed Haouas, Emmanuel Cadot, Stephane Cordier, Yann Molard, Thomas Pino, Celine Dablemont, Rachel Meallet, Karine Steenkeste, Minh-Huong Ha-Thi
Summary: This paper reports the evidence of photoinduced intermolecular electron transfer from the excited state of the [Mo6I8Cl6](2-) electron-rich cluster to polyoxometalates (POMs). The efficiency of electron transfer is shown to be affected by the global charge density of POMs. This work paves the way for the rational design of photocatalytic systems using cluster-based complexes as robust noble-metal-free photosensitizers.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Anam Fatima, Yevheniia Smortsova, Clement Falaise, Nathalie Leclerc, Mohamed Haouas, Emmanuel Cadot, Stephane Cordier, Yann Molard, Thomas Pino, Celine Dablemont, Rachel Meallet, Karine Steenkeste, Minh-Huong Ha-Thi
Summary: Evidence is reported for photoinduced intermolecular electron transfer from the excited state of the [Mo6I8Cl6](2)- electron-rich cluster to polyoxometalates (POMs). The efficiency of electron transfer is demonstrated to be affected by the global charge density of POMs. This work paves the way for the rational design of photocatalytic systems using cluster-based complexes as robust noble-metal-free photosensitizers.
CHEMICAL COMMUNICATIONS
(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)
