Article
Chemistry, Physical
Lei Zhong, Mengfan Ying, Zhigang Mou, Run Luo, Jianhua Sun, Dan Liu, Weiwei Lei
Summary: In this study, carbon nitride hollow spheres with adjustable sizes were successfully fabricated using a template-free supramolecular pre-assembly strategy. The sizes of the hollow spheres could be manipulated by changing the pre-assembly temperature. The optimal sample showed excellent photocatalytic hydrogen evolution rate in the visible-light region, which was significantly higher compared to traditional materials. This improvement can be attributed to the unique structure of the material and its remarkable light absorption ability, electrical conductivity, and charge separation capability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Dongbo Wang, Ying Huang, Xin Yu, Xianqing Huang, Yaxuan Zhong, Xiaoxiao Huang, Zheng Liu, Qingge Feng
Summary: A low-toxic template-free method was used to prepare porous graphitic carbon nitride (CCM18) with high specific surface area, stronger light absorption capacity, and a band gap energy of 2.92 eV. The degradation rate of tetracycline hydrochloride by CCM18 was more than twice that of other materials, primarily through reaction with superoxide radicals and hydroxyl radicals. The enhanced performance and stability of CCM18 suggest potential for industrial applications.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Inorganic & Nuclear
Wang Ke, Pang Yong-Yu, Xie Huan, Sun Yuan, Chai Guo-Liang
Summary: An efficient synergistic effect was proposed between F-doped carbon and Ta2O5 for H2O2 production, resulting in high selectivity and reactivity. The Ta2O5/F-C composite catalysts exhibited excellent H2O2 selectivity and high current density, showing promising potential for environmentally friendly electrosynthesis of H2O2.
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Mingyi Zhang, Ye Sun, Xin Chang, Peng Zhang
Summary: In this study, one-dimensional chain-like g-C3N4 was successfully synthesized by heat-induced polymerization of melamine saturated in ethylene glycol. The photocatalytic hydrogen production rate of the prepared g-C3N4 chain was enhanced about 3 times compared to bulk g-C3N4, attributed to its advantages in porosity and nanostructure.
FRONTIERS IN CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Lihua Feng, Yumeng Zhou, Wenqin Wang
Summary: In this study, Ag(NH3)(2)NO3 microcubes were obtained by evaporating the silver ammonia complex solution directly. In a Na(3)Cit solution, each Ag(NH3)(2)NO3 microcube can be broken into numerous Ag(3)Cit sub-microcubes with uniform size, serving as sacrificial templates for generating Ag sub-microcages. The resulting Ag cages exhibit ultra-high surface-enhanced Raman scattering (SERS) sensitivity towards R6G and thiram.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Gege He, Yang Wen, Chen Ma, Xiangyang Li, Lumei Gao, Zhanbo Sun
Summary: The spinels CoFe2O4 and NiFe2O4 were prepared as nanoporous photocatalysts by dealloying and calcination, showing good hydrogen generation rates through water splitting. CoFe2O4 exhibited higher performance due to its larger specific surface area and higher electron transfer rate compared to NiFe2O4. The results suggest that CoFe2O4 and NiFe2O4 are promising photocatalysts for hydrogen generation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Shih-Young Wong, Ming-Wei Liao, Tzu-Kang Chin, Tsong-Pyng Perng
Summary: Based on the localized surface plasmon resonance (LSPR) effect, UV light-sensitive photocatalysts can absorb visible light by loading metallic plasmonic nanoparticles. In this study, a nanohoneycomb (nHC) structure with an average cell size of 79 nm was fabricated and coated with a 3.7 nm-thick Ta2O5 thin film. Au nanoparticles were deposited on the Ta2O5 film to exhibit the LSPR effect. The LSPR phenomenon was observed and found to be correlated with the size of Au nanoparticles. The photocatalytic activities of hydrogen evolution were evaluated under visible light irradiation, and the highest evolution rate was achieved by the sample annealed at 650 degrees C.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Environmental
Mahmoud Kamal Hussien, Amr Sabbah, Mohammad Qorbani, Mohamed Hammad Elsayed, Putikam Raghunath, Tsai-Yu Lin, Shaham Quadir, Hong-Yi Wang, Heng-Liang Wu, Der-Lii M. Tzou, Ming-Chang Lin, Po-Wen Chung, Ho-Hsiu Chou, Li-Chyong Chen, Kuei-Hsien Chen
Summary: This study presents a green method for synthesizing a metal free modified g-C3N4 photocatalyst, achieving high efficiency in gas-phase CO2 reduction and hydrogen generation without the need for any cocatalyst. This work provides a new avenue for exploring rational modifications of g-C3N4 nanosheets for efficient clean energy production.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Seyyed Ebrahim Moosavifard, Abdolkhaled Mohammadi, Mohammad Ebrahimnejad Darzi, Asadollah Kariman, Mahnaz M. Abdi, Gholamreza Karimi
Summary: The study focuses on the design and optimization of electrode materials for fast energy storage devices in the electronics industries. By utilizing smart structural design and bimetallic synergy, the synthesized electrode demonstrates high capacity retention and exceptional specific capacitance, leading to remarkable electrochemical output. This approach offers a novel way to enhance the performance of hybrid supercapacitors for modern electronic devices.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Xinhai Sun, Yuxing Shi, Jialin Lu, Weilong Shi, Feng Guo
Summary: A facile template-free self-assembly method was developed to synthesize three-dimensional porous g-C3N4 nanovesicles (PCNNVs) with unique properties for efficient and durable photocatalytic H-2 evolution. The photocatalytic H-2 activities of the as-prepared PCNNVs photocatalysts are size-dependent, and the large-size PCNNVs-L exhibits the highest H-2 production rate.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yanhua Song, Jianjian Yi, Junjie Yuan, Ting Fei, Xianglin Zhu, Wenshu Yang, Huaming Li, Hui Xu
Summary: By using a two-step calcination method to construct Ta2O5/2D g-C3N4 photocatalyst, high photocatalytic hydrogen production activity under visible light irradiation is achieved, thanks to the advantages of nanostructure engineering and heterostructure construction, which facilitate fast charge separation and transfer.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Zhihao Yang, Xiaoqing Du, Xiaoqiu Ye, Xiaodong Qu, Huiling Duan, Yufeng Xing, Li-Hua Shao, Changan Chen
Summary: The study presents the hydrogen isotope storage properties of free-standing monolithic nanoporous palladium (NP-Pd) with different microstructure feature sizes, showing high hydrogen separation efficiency and reversible storage capacity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Lin An, Xin Han, Yaogang Li, Hongzhi Wang, Chengyi Hou, Qinghong Zhang
Summary: In this study, surface fluorination self-doped Ta2O5 nanoshuttles photocatalyst were successfully synthesized, exhibiting higher hydrogen evolution rate under full-spectrum and simulated solar light compared to Ta2O5 nanoshuttles without fluoride and commercial Ta2O5.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Po-Ting Chen, Ming-Wei Liao, Tsong-Pyng Perng
Summary: Polystyrene nanospheres were used as a template to form hexagonal close-packed Ta2O5 nanohoneycombs, and then Au nanoparticle arrays of different sizes were deposited on them to enhance surface plasmon resonance and visible-light photocatalytic hydrogen evolution. FDTD simulation showed that the 100-nm Ta2O5 nanohoneycombs with smaller Au nanoparticles exhibited more effective localized surface plasmon resonance effect. The photocatalytic hydrogen evolution results were consistent with the simulation and tests, and the concept of effective yield ratio was proposed to explain the effects of Au nanoparticle size and spacing on hydrogen evolution efficiency.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Yusong Dong, Fujisaka Ai, Dongxiao Sun-Waterhouse, Kei-ichiro Murai, Toshihiro Moriga, Geoffrey I. N. Waterhouse
Summary: Colloidal crystal templating is a versatile method for synthesizing inverse opal photonic crystals. In this study, tantalum oxide inverse opal thin films and powders were successfully fabricated using the colloidal crystal templating method. The films and powders showed structural color and the position of the photonic band gap increased linearly with the diameter of the macropores and the refractive index of the filling medium. Thermal ammonolysis of the tantalum oxide films resulted in well-ordered Ta3N5 inverse opals with high specific surface areas and a semiconductor band gap. These Ta3N5 inverse opals exhibited enhanced photocatalytic performance compared to conventional powder photocatalysts.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.