Article
Chemistry, Multidisciplinary
Xu Zhang, Shenghui Han, Gang Lian, Deliang Cui, Qilong Wang
Summary: A fluorination strategy was developed to prepare matrix-free fluorinated boron nitride dots (F-BNDs) with extended room-temperature lifetime and high-temperature resistance. This study provides a guiding strategy for the synthesis of F-BND phosphorescence materials with time-resolved and temperature-controlled lifetime encoding characteristics, and demonstrates their potential applications in information encryption, information displaying, and anti-counterfeiting.
Article
Chemistry, Multidisciplinary
Xu Zhang, Shenghui Han, Gang Lian, Deliang Cui, Qilong Wang
Summary: A fluorination strategy was developed to prepare matrix-free F-BN nanodots, which exhibit extended RTP lifetime and resistance to high temperature.
Correction
Chemistry, Multidisciplinary
K. Jankowski, J. Jablonska, P. Uznanski, S. Caluch, M. Szybowicz, R. Brzozowski, A. Ostafin, M. Kwasny, M. Tomasik
Summary: This study corrected the errors in a previous paper and reported the synthesis of necked gold nanoparticles using submerged alternating current arc discharge in water.
Article
Materials Science, Ceramics
Gokce Borand, Nazli Akcamli, Deniz Uzunsoy
Summary: Few-layered graphene was produced using substrate-free direct current arc discharge between graphite electrodes in a specially designed reactor chamber, with different carbon structures observed in different regions of the reactor. The study found that the properties of the graphene produced were greatly influenced by the temperature distribution and gradient around the arc plasma, affecting the deposition mechanism of carbon clusters in the reactor zones.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Junkai Ren, Luca Malfatti, Luigi Stagi, Davide Carboni, Roberto Anedda, Laura Calvillo, Plinio Innocenzi
Summary: Metal-free sulfur nanodots are a type of emerging nanoparticles used in photonics and nanobiotechnology. By modulating the surface interface with an organic polymer, the emission properties and colors of sulfur nanodots can be controlled.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
Lei Cao, Minghui Zan, Fangman Chen, Xinyue Kou, Yulu Liu, Panyong Wang, Qian Mei, Zheng Hou, Wen-Fei Dong, Li Li
Summary: This study investigates the fluorescence mechanism and formation processes of carbon dots synthesized from o-phenylenediamine. The study confirms the presence of two molecular fluorophores and proposes that the formation processes of these carbon dots are similar to carbonized polymer dots. The study provides insights into the yellow-emissive fluorophores region and can serve as a potential reference for the preparation of carbon dots in similar systems.
Article
Multidisciplinary Sciences
Francesco Rigodanza, Max Burian, Francesca Arcudi, Luka Dordevic, Heinz Amenitsch, Maurizio Prato
Summary: The formation of novel carbon dots involves 4 consecutive steps: aggregation of small organic molecules, formation of a dense core with an extended shell, collapse of the shell, and aromatization of the core. The authors also demonstrate examples of routes towards tuning the core-shell design, synthesizing five novel carbon dots with an electron-dense core covered by an amine rich ligand shell. Studying the formation processes of carbon nanodots remains crucial for understanding their properties and chemical structure.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Ivan Padron-Ramirez, Neil Torres-Figueredo, Angel Luis Corcho-Valdes, Josue Ponce de Leon-Cabrera, Frank J. Chao-Mujica, Karell Valdivie Cruz, Manuel Antuch, Johnny Deschamps, Edilso Reguera, Luis F. Desdin-Garcia
Summary: Reducing the greenhouse effect is a top priority for the scientific community. This study focuses on developing new materials for gas storage, particularly for the adsorption of greenhouse gases like carbon dioxide and methane. Carbon Nano-Onions (CNOs) were synthesized using submerged arc-discharge in water (SADW) and their properties as gas adsorbents were investigated. The results showed promising adsorption capacities for methane and carbon dioxide, making CNOs a potential solution for reducing greenhouse gas emissions.
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
(2023)
Review
Chemistry, Inorganic & Nuclear
Huaxin Liu, Xue Zhong, Qing Pan, Yi Zhang, Wentao Deng, Guoqiang Zou, Hongshuai Hou, Xiaobo Ji
Summary: Among the carbon nanomaterials family, fluorescent carbon dots have emerged as significant members with outstanding characteristics and extensive applications. Despite the development of many synthesis strategies, achieving controllable synthesis remains challenging.
COORDINATION CHEMISTRY REVIEWS
(2024)
Article
Chemistry, Physical
Ruiting Guo, Lin Li, Baowei Wang, Yinger Xiang, Guoqiang Zou, Yirong Zhu, Hongshuai Hou, Xiaobo Ji
Summary: Carbon dots are a new class of carbon materials with ultrasmall size and unique physicochemical properties, showing great potential in various fields and particularly in the development of next-generation batteries. Studies have demonstrated the advantages of using carbon dots in electrode materials, separator, and electrolyte of advanced batteries, highlighting their importance in guiding the design of future high-performance batteries.
ENERGY STORAGE MATERIALS
(2021)
Article
Multidisciplinary Sciences
Walaa Fawaz, Jameela Hasian, Ibrahim Alghoraibi
Summary: Carbon dots have gained increasing interest due to their remarkable potential in biomedical applications, attributed to their distinctive and adjustable photoluminescence characteristics, outstanding physicochemical properties, excellent photostability, and biocompatibility.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Mechanical
Hongjuan Yang, Dongsheng Yang, Guiming Mei, Cheng Cai, Xingqiao Deng, Yin Yang
Summary: Delamination wear greatly increases the wear loss of the carbon strip and affects the physicochemical properties of the contact pairs in the pantograph-catenary system. This study investigated the wear evolution mechanisms and the extension of delamination wear using a carbon/copper-alloy friction pair and calculated the arc discharge energy to explore the quantitative relationship between delamination wear and arc discharge. The results showed that the frictional coefficient gradually increased with the experiment and was higher with electric current. Under intense arcing, delamination wear initially appeared on one edge of the strip and extended to the middle, leading to increased wear and enhanced arc discharge. Delamination wear and its extension were caused by the cumulative effect of heat from long-term strong arc discharge.
Article
Chemistry, Physical
Fangzhou Wen, Peiyuan Li, Ying Zhang, Haiyi Zhong, Hongjun Yan, Wei Su
Summary: In this study, carbon quantum dots were synthesized using green tea as raw material and loaded with curcumin to prepare carbon quantum dots/Curcumin nanocomposites. The morphology and chemical structure of the composite nanoparticles were characterized, and the tea carbon dots exhibited excitation wavelength dependence, salt solution stability, and light stability. The antioxidant activities of the nanocomposites were investigated, and the results showed that the carbon quantum dots loaded with curcumin enhanced its antioxidant performance and retained its antibacterial activity. These findings suggest the potential of tea carbon quantum dots loaded with curcumin as natural antioxidants and antibacterial agents.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Review
Environmental Sciences
Chanchal Das, Mika Sillanpaa, Shabi Abbas Zaidi, Moonis Ali Khan, Goutam Biswas
Summary: Urbanization and population growth have led to a significant increase in solid waste generation, projected to reach 3.40 billion tons by 2050. Carbon-based quantum dots (Cb-QDs) derived from solid wastes have attracted research interest due to their wide range of applications. This review focuses on the conversion of solid wastes into useful materials for pollution reduction, specifically investigating sustainable synthesis routes of carbon quantum dots (CQDs), graphene quantum dots (GQDs), and graphene oxide quantum dots (GOQDs). The applications of these quantum dots in various fields are also discussed, along with the challenges in implementing existing synthesis methods and future research directions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Youwei Sun, Xingzhou Yuan, Yanjuan Wang, Wanshu Zhang, Yanda Li, Zhuolei Zhang, Ji Su, Jian Zhang, Shaozheng Hu
Summary: The CeO(2)QDs/g-C3N4 photocatalyst significantly enhances visible light absorption, reduces electron-hole recombination rate, and improves photodegradation performance through an appropriate Z-scheme charge transfer mechanism.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Cesar B. Morales-Ramos, Marco Camacho-Lopez, Miguel A. Camacho-Lopez, Alfredo R. Vilchis-Nestor, Mariela Flores-Castaneda, Santiago Camacho-Lopez
Summary: Delta-Bi2O3 nanoparticles were successfully synthesized using the laser ablation of solids in liquids (LASL) technique, with a bismuth target irradiated by a ns-pulsed Nd:YAG laser in sodium hypochlorite solution. This method proved to be suitable and simple for obtaining delta-Bi2O3.
Article
Optics
Noe Enriquez-Sanchez, Alfredo R. Vilchis-Nestor, Santiago Camacho-Lopez, Miguel A. Camacho-Lopez, Marco Camacho-Lopez
Summary: In this study, MnOx NPs/C nanosheets composite colloidal suspensions were synthesized by laser ablation in liquids technique. The composite consisted of manganese oxide nanoparticles embedded in carbon nanosheets. Photoluminescence studies revealed that the carbon nanosheets exhibited significantly enhanced PL when combined with MnOx NPs in the composite. Additionally, the MnOx NPs provided intense UV emission to the composite, suggesting potential applications in optoelectronics and biomedicine.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Computer Science, Interdisciplinary Applications
Mildred S. Cano-Velazquez, Jose Bon, M. Llamazares, Santiago Camacho-Lopez, Guillermo Aguilar, Juan Hernandez-Cordero, Macarena Trujillo
Summary: This study explores the photothermal effects of transparent nanocrystalline yttria-stabilized zirconia (nc-YSZ) ceramics when irradiated with laser. Both experimental and computational models show that the temperatures achieved during laser irradiation are suitable for biomedical applications. The absorption coefficient of the nc-YSZ samples is identified as the most influential parameter.
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
(2022)
Article
Chemistry, Multidisciplinary
Yasser Matos-Peralta, Dayma Llanes, Arely Cano, Mayra P. Hernandez, Leonardo Bazan-Bravo, Frank Justo Chao Mujica, Luis Felipe Desdin Garcia, Leslie Reguera, Manuel Antuch
Summary: In this study, a NiCoNP-based electrochemical sensor was constructed for the detection of phenylhydrazine, a strong pollutant. The NiCoNP material exhibited high electrocatalytic activity, wide linear range, high sensitivity, and rapid selective response towards phenylhydrazine, showing promising potential for the development of electrochemical sensors.
Article
Chemistry, Physical
Juan Carlos Gonzalez-Parra, Vicente Robles, Luis Felipe Devia-Cruz, Rene Rodriguez-Beltran, Natanael Cuando-Espitia, Santiago Camacho-Lopez, Guillermo Aguilar
Summary: By nanotexturing a metallic surface using Laser-Induced Periodical Surface Structures (LIPSS), the eroded volume caused by laser-induced cavitation erosion can be significantly reduced. The eroded volume on the LIPSS-scribed surface is more than three times smaller than that on the untreated surface. The lower quantity of remnant bubbles attached to the LIPSS-modified surface between cavitation events is the main reason for the significant difference in eroded volume.
SURFACES AND INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
M. Flores Castaneda, S. Camacho-Lopez, V. H. Castrejon-Sanchez, C. B. Morales-Ramos, M. Camacho-Lopez
Summary: The oxidation process of bismuth colloidal nanoparticles at room temperature was investigated, which were synthesized in deionized water by laser ablation of solids in liquids technique (LASL) and oxidized using NaClO solutions at different concentrations. The oxidized nanomaterials were characterized by various techniques. The results showed morphological changes from small nanoparticles to nanosheets and a mixture of nanosheets with hollow nanoparticles. Two kinds of nanomaterials were found depending on the NaClO solution concentration: Bi2O2CO3 single phase and a mixture of delta-Bi2O3 and Bi2O2CO3. Some samples exhibited good performance as photocatalysts for the degradation of methylene blue in solution. This is the first study to explore the oxidation process of bismuth colloidal nanoparticles at room temperature.
Article
Optics
Mariela Flores-Castaneda, Santiago Camacho-Lopez
Summary: Bi2O2CO3 nanosheets were synthesized by aging of bismuth nanoparticles obtained via laser ablation in liquids, and their decoration with silicon nanoparticles was achieved using the same synthesis technique, for the first time. The size and morphology of the nanosheets were studied using scanning electron microscopy and transmission electron microscopy. Chemical composition was determined by Raman microspectroscopy, and the optical properties were characterized by UV-vis spectroscopy.
OPTICS AND LASER TECHNOLOGY
(2023)
Review
Chemistry, Multidisciplinary
Alejandro Lopez-Beltran, Claudia Iriarte-Mesa, Clarissa Murru, Frank J. Chao-Mujica, Angel Luis Corcho-Valdes, Lisandra Morales-Alvarez, Luis Felipe Desdin-Garcia, Johnny Deschamps, Manuel Antuch
Summary: The review summarizes the pollution caused by heavy metals through natural processes and human activities, and its occurrence in complex media. It aims to provide a systematic summary of the state-of-the-art fluorescent CDs and their sensing applications. The review also addresses the origin of observed selectivity in chemiluminescence sensors, offering explanations for trends and providing guidelines for the design of CDs targeting ions in solution.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Santiago Camacho-Lopez, Mariela Flores-Castaneda, Miguel Camacho-Segura, Luis F. Devia-Cruz, Noe Zamora-Romero, Guillermo Aguilar, Miguel A. Camacho-Lopez, Marco Camacho-Lopez
Summary: This study investigates the synthesis and characterization of molybdenum oxide nanostructures using laser ablation of solids in liquids method. Both nanoparticles and nanosheets composed of molybdenum oxide were formed. The colloid suspension optical absorbance changes with time, resulting in a blue shift within a few days of aging. Raman characterization showed that the material turns into a hydrated molybdenum oxide. Transmission electron microscopy revealed a core-shell structure for the nanoparticles and the nanosheets were found to be composed of orthorhombic alpha-MoO3. The absorption band at 830 nm that develops in the early aging stage of the colloid shows potential for photothermal therapy.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Y. Rodriguez-Lazcano, Enue Barrios-Salgado, Mariela Flores-Castaneda, Santiago Camacho-Lopez, J. Perez-Alvarez, A. Chavez-Chavez, J. G. Quinones-Galvan
Summary: Cu nanoparticles obtained by laser ablation of solids in liquids were added to chemical bath solutions to synthesize Sb2S3-Cu nanocomposite thin films. The films were annealed at 280 °C in Argon and their structural, optical, and surface properties were analyzed. The presence of Cu nanoparticles embedded within Sb2S3 was confirmed by TEM measurements. The electrical resistance of the films was studied using electrochemical impedance spectroscopy.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Denis V. V. Balatskiy, Alexander S. S. Chuprin, Semyon V. V. Dudkin, Luis Felipe Desdin-Garcia, Angel Luis Corcho-Valdes, Manuel Antuch, Vyacheslav M. M. Buznik, Svetlana Yu. Bratskaya, Yan Z. Z. Voloshin
Summary: A combined experimental and theoretical study was conducted on a series of iron(ii)-centered (pseudo)macrobicyclic analogs and homologs. The strength of the (pseudo)encapsulating ligand was found to influence the spin state of the iron(ii) ion and the electron density at its nucleus. The correlation between the isomer shift (IS) values and the electron density was successfully predicted using quantum-chemical calculations. However, the prediction of quadrupole splitting (QS) values based on theoretical calculations was challenging and could not be solved at the moment.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Luis Humberto Robledo-Taboada, Javier Francisco Jimenez-Jarquin, Mariela Flores-Castaneda, Antonio Mendez-Blas, Jacob Barranco-Cisneros, Santiago Camacho-Lopez
Summary: Various micron and submicron structures were laser-induced on silicon, including LIPSS, grooves, conical spikes and deep craters. The formed structures strongly depend on laser fluence and pulse number. Characterization using electron scanning microscopy and atomic force microscopy revealed interesting features such as flipping structure orientation and coexistence of multiple structures, which influenced surface wettability.
BULLETIN OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Physical
Angel Luis Corcho-Valdes, Josue Ponce de Leon-Cabrera, Ivan Padron-Ramirez, Frank Justo Chao-Mujica, Ekaterina Lebed, Alejandro Gutierrez-Quintanilla, Luis Felipe Desdin-Garcia, Yan Voloshin, Manuel Antuch
Summary: The high demand for clean energy vectors in modern society has led to an increase in research on homogeneous and immobilized electrocatalysts that can replace Pt. Clathrochelates have shown promising electrocatalytic properties for the hydrogen evolution reaction (HER), but the exact mechanism of their catalysis is still under debate. This study aimed to determine the IR pattern and appropriate calculation methodology for a family of Co-(II) clathrochelates through theoretical and experimental analysis. The research provided valuable insights into the vibrational spectra and assignment of cobalt-(II) clathrochelates, which have complex spectra.
JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Article
Nanoscience & Nanotechnology
Y. C. Lopez, F. J. Chao-Mujica, L. M. Garcia-Rodriguez, O. L. Perez-Guevara, M. Antuch, E. Reguera, L. F. Desdin-Garcia, L. Garcia-Hernandez
Summary: The study found that the neutral red dye strongly adsorbed on the carbon nano-onions, leading to invalid results in the toxicity assay.
ADVANCES IN NATURAL SCIENCES-NANOSCIENCE AND NANOTECHNOLOGY
(2022)
