Article
Chemistry, Physical
Xiaoxia Jia, Jiwu Zhao, Yujing Lv, Xianliang Fu, Yajun Jian, Weiqiang Zhang, Yanyan Wang, Huaming Sun, Xuxu Wang, Jinlin Long, Peng Yang, Quan Gu, Ziwei Gao
Summary: A new PdCu/UTCN hybrid has been developed for enhanced Suzuki reaction, showing promoted photocatalytic activity with high selectivity. The photocatalyst demonstrates good functional group tolerance and excellent yield and selectivity for various substrates.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Review
Chemistry, Physical
Kaining Li, Mengxi Zhang, Xiaoyu Ou, Ruina Li, Qin Li, Jiajie Fan, Kangle Lv
Summary: Efficient preparation of nano-sized g-C3N4 nanosheets is crucial, as controlling the size can address the issues associated with bulk materials.
ACTA PHYSICO-CHIMICA SINICA
(2021)
Article
Green & Sustainable Science & Technology
Haoming Huang, Longbo Jiang, Jinjuan Yang, Shaoyu Zhou, Xingzhong Yuan, Jie Liang, Hou Wang, Hui Wang, Yuanqing Bu, Hui Li
Summary: Nanostructured heterogeneous photocatalysts, such as graphitic carbon nitride, have become important in converting solar energy to chemical energy for clean energy and environmental applications. In recent years, significant progress has been made in the synthesis and modification strategies of graphitic carbon nitride. The review also emphasizes the promising direction of designing and applying graphitic carbon nitride based on existing opportunities and challenges.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Engineering, Environmental
Menglu Zhang, Yu Yang, Xiaoqiang An, Jingjing Zhao, Yueping Bao, Li-an Hou
Summary: The exfoliation of carbon nitride into ultrathin nanosheets greatly enhances its photoactivity. Different exfoliation methods, including thermal, chemical, ultrasonic, and one-step exfoliation, were studied for their effects on the microstructure and photocatalytic performance of the nanosheets. Among these methods, one-step exfoliation showed superior photocatalytic efficiency under visible light and could potentially be a cost-effective strategy for producing high-performance carbon nitride nanosheets for water purification applications.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Chengxiao Zhao, Chenhui Han, Xiaofei Yang, Jingsan Xu
Summary: Solar-driven chemical processes are crucial for addressing global challenges, and developing high-performance semiconductor photocatalysts is key. Fabricating nanometer-sized photocatalytic materials is considered an effective strategy, with 2D ultrathin materials being of particular interest due to their large lateral dimension/thickness ratio.
Article
Chemistry, Multidisciplinary
Belal Salah, Ahmed Abdelgawad, Qingqing Lu, Adewale K. Ipadeola, Rafael Luque, Kamel Eid
Summary: Researchers synthesized ternary metal-doped porous fiber-like g-C3N4 nanostructures for efficient catalysis of green hydrogen production. The study found that catalysts with ternary metal doping showed higher synergistic effects and better catalytic activity.
Article
Materials Science, Multidisciplinary
Liangxu Lin, Na Xu, Chang Wu, Juntong Huang, Andrew Nattestad, Xueling Zheng, Gordon G. Wallace, Shaowei Zhang, Jun Chen
Summary: This study reports a technique for preparing ultrathin crystals from bulk non-layered structures and characterizes their physical and optical properties. The novel 2D non-layered nanomaterials presented in this work provide significant contributions to the field and lay the foundation for more applications.
Review
Chemistry, Multidisciplinary
Daolong Zhu, Haidong Zhao, Bin Wang, Shengchun Yang
Summary: Noble metal nanomaterials are widely used due to their unique properties such as high catalytic activity, chemical stability, and biocompatibility. Research on two-dimensional metallic materials, especially ultrathin precious metals, has led to new insights into the design and properties of precious metal nanomaterials. Understanding the relationship between the structure of noble metals and their properties is crucial for further optimizing their performance in various applications.
Article
Chemistry, Physical
Marie Daentl, Johannes Maschita, Peter Wochner, Alberto Jimenez-Solano, Hugo A. Vignolo-Gonzalez, Daniel Putzky, Robert E. Dinnebier, Sebastian Bette, Bettina V. Lotsch
Summary: By quantitatively analyzing the changes in peak profile and position during intercalation, researchers have revealed the role of ethanol in the intercalation process of n-butylamine into a H3Sb3P2O14 thin film.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Zhong Zhou, Qi Liu, Jiahui Zhu, Jingyuan Liu, Hongsen Zhang, Jing Yu, Rongrong Chen, Ying Li, Jun Wang
Summary: Amidoxime-group carbon nitride (NCN-AO) has better selectivity and uranium reduction ability, allowing for efficient extraction of uranium. NCN-AO can remove uranium with a removal rate of 99% in uranium solution, and it exhibits specific and selective adsorption of uranium.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Multidisciplinary Sciences
Kaisi Liu, Hongrun Jin, Liwei Huang, Yongxin Luo, Zehao Zhu, Simin Dai, Xinyan Zhuang, Zidong Wang, Liang Huang, Jun Zhou
Summary: This article introduces a facile strategy for synthesizing ultrathin oxide nanosheets using a self-formed sacrificial template of carbon layers. By taking advantage of the Maillard reaction and violent redox reaction between glucose and ammonium nitrate, 36 large-area ultrathin oxides with various compositions have been successfully fabricated, including perovskite oxides which exhibit excellent electrocatalytic activity for oxygen evolution reaction.
Article
Engineering, Environmental
Maansi Aggarwal, Soumen Basu, Nagaraj P. Shetti, Mallikarjuna N. Nadagouda, Eilhann E. Kwon, Young-Kwon Park, Tejraj M. Aminabhavi
Summary: Photocatalytic CO2 reduction is crucial in mitigating the detrimental consequences of greenhouse gases. 2D carbon nitride materials show promising potential for the reduction of CO2 into value-added products.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Yanping Liu, Shijie Shen, Zhigang Li, Dandan Ma, Gang Xu, Baizeng Fang
Summary: Mesoporous graphitic carbon nitride (g-C3N4) nanosheets, prepared by ultrasonically exfoliating the bulk gC3N4 in sulfuric acid aqueous solution, exhibit improved photocatalytic performance under visible light irradiation due to increased specific surface area, abundant mesopores, and narrowed bandgap, which enhance reactive sites, shorten carriers transfer paths, and improve light absorption ability.
MATERIALS CHARACTERIZATION
(2021)
Article
Energy & Fuels
Fan Yang, Haoze Li, Kai Pan, Shijie Wang, Huapeng Sun, Ying Xie, Yachao Xu, Jiaxing Wu, Wei Zhou
Summary: A defective ultrathin mesoporous graphitic carbon nitride photocatalyst was synthesized with high catalytic performance, which was achieved through reducing the distance between photogenerated carriers and the surface, forming suitable N-vacancy defects, extending light absorption, and exposing adequate surface active sites.
Article
Nanoscience & Nanotechnology
Xiangyang Li, Jiaming Wu, Sufeng An, Keyan Li, Jiaxing Zhang, Mengjiao Pei, Chunshan Song, Xinwen Guo
Summary: We propose a simple bottom-up strategy for preparing crystalline polymeric carbon nitride (CCN) with ultrathin 2D nanosheet structures. CCN can efficiently remove various high-concentration organic pollutants and heavy metal ions under visible light irradiation. It also exhibits outstanding photocatalytic performance in the water-splitting reaction. The highly boosted activity of CCN is attributed to the significantly improved charge separation, increased active sites, and enhanced visible light absorption.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Jie Sheng, Jingshan He, Dun Ma, Yuanbo Wang, Wu Shao, Tian Ding, Ronghao Cen, Jingwen He, Zhihao Deng, Wenjun Wu
Summary: This study presents an innovative approach to improve the photovoltaic conversion characteristics and stability of perovskite solar cells through carbon electrode interface modification. By in-situ polymerization and carbonization on the surface of nano-graphite, a dendritic structure carbon electrode is formed, reducing the work function and aligning the energy levels with perovskite. This leads to improved charge and hole collection efficiency, resulting in increased photovoltaic conversion efficiency. Furthermore, the modified carbon electrode-based perovskite solar cells exhibit exceptional stability, maintaining high efficiency even without encapsulation.
Article
Chemistry, Physical
Guodong Shi, Jian Song, Xiaoxiao Tian, Tongtong Liu, Zhanjun Wu
Summary: This study demonstrates the improvement of mechanical properties and reduction of coefficient of thermal expansion (CTE) in graphene oxide (GO)/epoxy (EP) nanocomposites by enhancing the interface between GO and EP through functionalization and incorporating rigid-flexible interphases. The results reveal that the SiO2-PEA-GO hybrid exhibits better strengthening and toughening effects, as well as lower CTE, compared to the PEA-GO hybrid due to the presence of rigid-flexible interfaces with higher bonding strength and better energy dissipation mechanisms. Additionally, the nanocomposites with longer polyetheramine (PEA) molecules in the rigid-flexible interphases demonstrate higher strength and toughness, while maintaining a lower CTE. This work provides a promising strategy for constructing adjustable flexible-rigid interfacial structures and offers potential in developing GO/EP nanocomposites with high mechanical properties and low CTE.
Article
Chemistry, Physical
Rafal Janus, Sebastian Jarczewski, Jacek Jagiello, Piotr Natkanski, Mariusz Wadrzyk, Marek Lewandowski, Marek Michalik, Piotr Kustrowski
Summary: In this study, a facile procedure for the synthesis of CMK-1 and CMK-2 carbon replicas was developed. The method utilizes basic laboratory equipment and a renewable carbon source, and operates under mild conditions. The resulting carbon mesostructures exhibit exquisite replication fidelity and structural homogeneity, making them suitable for applications in various fields.
Article
Chemistry, Physical
Anqi Wang, Connor J. MacRobbie, Alex Baranovsky, Jean-Pierre Hickey, John Z. Wen
Summary: In this study, a novel polymer-free nanothermite aerogel with a wide range of nanoparticle loading was fabricated via a new additive manufacturing process. The SEM images showed a unique porous structure formed by extra thin rGO sheets, wrapping individual nanothermite clusters. The DSC-TGA results and high-speed combustion videos confirmed the enhanced energetic performance of the printed specimen.
Article
Chemistry, Physical
Wanze Wu, Misheng Zhao, Shiwei Miao, Xiaoyan Li, Yongzhong Wu, Xiao Gong, Hangxiang Wang
Summary: Superhydrophobic solar-driven interfacial evaporator is an energy-efficient technology for seawater desalination, which is easily fabricated using robust photothermal superhydrophobic coating and substrate. The created bifunctional coating on the melamine sponge substrate shows stable and highly efficient photothermal and superhydrophobic performance for seawater desalination. This superhydrophobic solar-driven interfacial evaporator is expected to have wide applications in seawater desalination.
Article
Chemistry, Physical
Zichen Xiang, Zhi Song, Tiansheng Wang, Menghang Feng, Yijing Zhao, Qitu Zhang, Yi Hou, Lixi Wang
Summary: This study presents a co-electrospinning synthesis strategy to fabricate lightweight and porous Co@C composite nanofibres with wideband microwave attenuation capacity. The addition of MOF-derived Co additives enhances the low-frequency absorption performance.
Article
Chemistry, Physical
J. Snow, C. Olson, E. Torres, K. Shirley, E. Cazalas
Summary: This study investigates the use of a perovskite-based graphene field effect transistor (P-GFET) device for X-ray detection. The sensitivity and responsivity of the device were found to be influenced by factors such as X-ray tube voltage, current, and source-drain voltage. Simulation experiments were conducted to determine the dose rate and energy incident on the device during irradiation.
Article
Chemistry, Physical
Zuzana Jankovska, Lenka Matejova, Jonas Tokarsky, Pavlina Peikertova, Milan Dopita, Karolina Gorzolkova, Dominika Habermannova, Michal Vastyl, Jakub Belik
Summary: This study provides new insights into microwave-assisted pyrolysis of scrap tyres, demonstrating that it can produce microporous carbon black with potential application in xylene adsorption. Compared to conventional pyrolysis, microwave pyrolysis requires less time and energy while maintaining similar adsorption capacity.
Article
Chemistry, Physical
Max Bommert, Bruno Schuler, Carlo A. Pignedoli, Roland Widmer, Oliver Groning
Summary: A detailed understanding of the interaction between molecules and two-dimensional materials is crucial for incorporating functional molecular films into next-generation 2D material-organic hybrid devices. This study compares the energy level alignment of different-sized fullerenes on a Moire superstructure and finds that C-84 fullerenes can be either neutral or negatively charged depending on slight variations of the electrostatic potential. This discovery suggests a new path to achieve ambipolar charge transfer without overcoming the electronic gap of fullerenes.
Article
Chemistry, Physical
Yuanjing Cheng, Xianxian Sun, Ye Yuan, Shuang Yang, Yuanhao Ning, Dan Wang, Weilong Yin, Yibin Li
Summary: The dual-structure aerogel (GS) consisting of flexible silica fibers and graphene honeycomb structures exhibits excellent resilience, flexibility, and reliability. It also shows remarkable wave absorbing performance, making it an ideal candidate for microwave absorption applications such as flexible electronics and aerospace.
Article
Chemistry, Physical
Shuyu Fan, Yinong Chen, Shu Xiao, Kejun Shi, Xinyu Meng, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: Graphene coatings are promising solid lubrication materials due to their mechanical properties. This study presents a new method for in situ deposition of high-quality graphene coatings on hard substrates using NiCo solid solution and competitive reaction strategies. The graphene coating deposited on substrates with deep NiCo solid solution demonstrates superior low-friction and durability.
Article
Chemistry, Physical
Mengdi Wang, Sanyin Qu, Yanling Chen, Qin Yao, Lidong Chen
Summary: The improved thermoelectric properties of conducting polymers are achieved by selectively capturing single-walled carbon nanotubes (SWNTs) in a conducting polymer film, leading to increased carrier mobility and reduced thermal conductivity. The resulting composite film exhibits significantly higher electrical conductivity and lower thermal conductivity compared to films with a mixture of SWNTs. This work provides a convenient and efficient method to enhance the thermoelectric properties of conducting polymers.
Review
Chemistry, Physical
Heng Wei, Weihua Li, Kareem Bachagha
Summary: This article reviews the research progress of carbon nanotube-based microwave absorbing materials (MAMs) in recent years, covering the fundamental theory, design strategies, synthesis methods, and future development directions.
Article
Chemistry, Physical
Chenguang Shi, Junlong Huang, Zongheng Cen, Tan Yi, Shaohong Liu, Ruowen Fu
Summary: This study developed a high-performance Li metal host material, which achieved dendrite-free Li deposition with a low nucleation overpotential and high Coulombic efficiencies through the combination of Ti3C2-g-PV4P sheets and Ag nanoparticles. The full cells assembled with the Li@host anode and LiFePO4 cathode exhibited high discharge capacity and excellent cycling stability, demonstrating a perspective design for future energy storage devices.
Article
Chemistry, Physical
Tomotaro Mae, Kentaro Kaneko, Hiroki Sakurai, Suguru Noda
Summary: A new partial prelithiation method for SiO/C-CNT electrodes was developed, which showed reduced irreversible capacity and achieved high energy densities with good reversibility. The method allows for precise control of the degree of prelithiation and is applicable to various chemistries.