Article
Chemistry, Physical
Dingyu Li, Chengwu Yang, Saravanan Rajendran, Jiaqian Qin, Xinyu Zhang
Summary: In this study, a highly efficient Ti3CN@TiO2/CdS photocatalyst was reported. Ti3CN@TiO2 materials with different morphologies were obtained from Ti3AlCN by controlling the etching time, and CdS nanoparticles were loaded onto the catalyst to improve its photocatalytic efficiency.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Lin Yang, Jinxing Yu, Qingyang Fu, Lulu Kong, Xiaoxiang Xu
Summary: In this study, grain boundary-free SrNbO2N porous single crystals (PSCs) were synthesized, exhibiting exceptional photocatalytic activity and stability for water oxidation reactions. The removal of grain boundaries allows for fast charge transportation and reduces charge recombination risks. The high porosity of PSCs provides ample surface for catalytic reactions. With the addition of a proper cocatalyst, SrNbO2N PSCs achieved a high apparent quantum efficiency of 5.64% at 420 +/- 20 nm. Furthermore, integration of SrNbO2N PSCs into a Z-scheme system demonstrated the capability to split water into H-2 and O-2 under simulated solar insolation. These findings highlight the potential of traditional materials for solar energy conversions.
Article
Chemistry, Physical
Lin Yang, Qingyang Fu, Lina Wang, Jinxing Yu, Xiaoxiang Xu
Summary: The study demonstrates the exceptional activity and stability of porous single-crystalline SrTaO2N in photocatalytic oxygen production, achieving a record-breaking apparent quantum efficiency. Water splitting with a hydrogen/oxygen ratio of 2 has been accomplished in a Z-scheme system using SrTaO2N as the oxygen-evolution component. These results indicate a paradigm shift in improving photocatalytic performance and expanding the toolbox for efficient solar water splitting.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Multidisciplinary
Shufang Chang, Jinxing Yu, Ran Wang, Qingyang Fu, Xiaoxiang Xu
Summary: LaTaON2 porous single crystals (PSCs) exhibit outstanding photocatalytic performance due to rapid photocarrier transportation and ample reachable surfaces for photochemical reactions. The material shows significantly improved efficiency and stability in water oxidation and overall water splitting.
Article
Materials Science, Multidisciplinary
Ahmad Ranjbar, Hossein Mirhosseini, Thomas D. Kuehne
Summary: In this study, we conducted a virtual materials screening to identify potential topological materials for photocatalytic water splitting under visible light. The screening was based on criteria such as band gap, band edge energy, and thermodynamic stability. We also calculated the topological types of the final candidates using hybrid density functional theory. Our findings showed that the materials in our final list have suitable band gaps and band edge energies for water oxidation and reduction, but their topological types differ from those reported previously.
JOURNAL OF PHYSICS-MATERIALS
(2022)
Article
Chemistry, Physical
Rui Jiang, Wenhao Li, Kaili Zhu, Wei Ye, Genping Zhu, Gan Jia, Fuchun Xu, Jun Wang, Ting Tao, Yikang Wang, Xianglong Kong, Xiaohong Wu, Shiyu Du, Peng Gao, Joseph S. Francisco
Summary: In this paper, a uniform beta-C3N4 layer is successfully prepared and coated on a TiO2 nanotube substrate via calcination treatment using ethylenediamine as the carbon nitride precursor. The TiO2/C3N4 composite material exhibits promising sunlight-driven overall water splitting ability, with N vacancy defects in beta-C3N4 serving as the active site for oxygen generation from water.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Electrical & Electronic
Tien Thanh Nguyen, Khac An Dao, Xuan Dien Luong, Thi Dieu Thuy Ung
Summary: Thermal annealing in vacuum enhances the photoelectrochemical properties of TiO2 nanoparticle-based photoanodes by increasing oxygen vacancy density and reducing oxide concentration, leading to higher photocurrent density and photoconversion efficiency.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Megha A. Deshmukh, Sang-Joon Park, Hanuman N. Thorat, Gajanan A. Bodkhe, Arunas Ramanavicius, Simonas Ramanavicius, Mahendra D. Shirsat, Tae -Jun Ha
Summary: In this paper, the development of dynamic, highly stable, and cost-effective electro-and photo-catalysts as energy materials crucial for achieving electro-and photo-catalytic H2 production from water splitting is investigated in terms of engineering chemistry. The fundamental physics of water splitting and the recent progress in the design and construction of energy materials based on metal-based cata-lysts is discussed. Future challenges and scope to enable the design of active and robust energy materials for hydrogen and oxygen evolution reactions are outlined.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Physical
Houmei Dai, Xiaolin Cai, Xin Li, Chong Wang, Yanglai Hou, Ran Wei
Summary: In this study, the photocatalytic ability of the g-C3N4/LNS-TiO2(Cr + C) heterostructure in water splitting process was investigated theoretically. The results showed that this hetero-junction is a stable structure and can enhance the photocatalytic reactions through the built-in electric field.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Yunqing Kang, Bo Jiang, Victor Malgras, Yanna Guo, Ovidiu Cretu, Koji Kimoto, Aditya Ashok, Zhe Wan, Hexing Li, Yoshiyuki Sugahara, Yusuke Yamauchi, Toru Asahi
Summary: A 2D heterostructure consisting of amorphous nickel boron oxide and crystalline mesoporous iridium has been designed for water splitting, showing superior electrochemical performance in both oxygen evolution reaction and hydrogen evolution reaction. The well-defined heterostructure and strong interfacial coupling contribute to abundant catalytically active heterointerfaces and boosted exposure of active sites. Tuning the electronic state of the iridium sites by hybridizing with nickel boron oxide layers further enhances the overall performance of the heterostructures.
Article
Chemistry, Applied
Eri Fudo, Atsuhiro Tanaka, Hiroshi Kominami
Summary: In this study, chromium hydroxide (Cr(OH)3) was introduced to gold-titanium(IV) oxide with platinum nanoparticles (Au/TiO2-Pt) photocatalysts. The Cr(OH)3/[Au/TiO2-Pt] composite photocatalyst was characterized and its functions were evaluated through photocatalytic reactions. The reduction sites of Cr(OH)3/[Au/TiO2-Pt] and the mechanism of water splitting were discussed based on experimental results.
Article
Multidisciplinary Sciences
Honglei Zhu, Chao Zhen, Xiangtao Chen, Shun Feng, Bo Li, Yufei Du, Gang Liu, Hui-Ming Cheng
Summary: Semiconductor heterostructures mediated by electrical conductors show great potential for Z-scheme photocatalytic water splitting. The fabricated TiO2 and Cu2O film stripes on a conductive substrate exhibit efficient charge transfer processes and enable photocatalytic overall water splitting.
Article
Materials Science, Multidisciplinary
Fangyong Hou, Kejian Lu, Feng Liu, Fei Xue, Maochang Liu
Summary: This study reports the synthesis of a titanium dioxide-graphene-tantalum nitride hybrid photocatalyst through an ultrasonic-hydrothermal method. Compared to pristine titanium dioxide and tantalum nitride, the prepared hybrid photocatalyst exhibits significantly enhanced performance in photocatalytic water splitting, attributed to improved visible light utilization and charge transfer behavior. It was found that water splitting is achieved through a Z-scheme mechanism, with graphene acting as a bridge for electron transfer between titanium dioxide and tantalum nitride.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Environmental Sciences
Bagus Adjie Prasetyo, Imam Prasetyo, Teguh Ariyanto
Summary: This paper presents a one-step ciprofloxacin degradation method using TiO2@PANI via photocatalysis. The TiO2@PANI material was prepared through in situ polymerization and pyrolysis to enhance pore properties. The properties of the TiO2@PANI material were characterized using various techniques. The results showed that TiO2@PANI successfully degraded ciprofloxacin with a high reaction rate constant and better durability compared to bare TiO2.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Materials Science, Ceramics
Weiming Li, Chunqiang Zhuang, Yuanli Li, Chunlang Gao, Wenshuai Jiang, Zaicheng Sun, Kezhen Qi
Summary: A new design strategy was proposed in this study to anchor small-sized TiO2 photocatalysts onto large-sized Ti3C2-Mxene cocatalysts for efficient charge separation, resulting in a significantly higher hydrogen production rate. This strategy demonstrates the feasibility of designing novel photocatalytic systems with superior properties.
CERAMICS INTERNATIONAL
(2021)
Article
Anatomy & Morphology
Ming Zhou, Akimitsu Ishizawa, Hideo Akashi, Ryoji Suzuki, Yoshio Bando
Summary: This study classified variations of the flexor carpi radialis with accessory muscular bundles and different insertions of the tendon. These findings are important for anatomical education and have significant implications in clinical diagnosis and therapies.
ANATOMICAL SCIENCE INTERNATIONAL
(2023)
Article
Engineering, Environmental
Taotao Meng, Zhengtong Li, Zhangmin Wan, Jing Zhang, Luzhen Wang, Kangjie Shi, Xiangting Bu, Saad M. Alshehri, Yoshio Bando, Yusuke Yamauchi, Dagang Li, Xingtao Xu
Summary: Soil water extraction based on interfacial solar-thermal technology using a double-layer solar evaporator with a ZIF-8-derived carbon coating on a wood sponge can efficiently achieve evaporation and provide clean drinking water in arid inland areas. The wood sponge offers water-extraction advantages due to its super hydrophilic channels, while the carbon coating promotes photothermal conversion. The double-layer solar evaporator exhibits high sunlight absorbance, low thermal conductivity, stronger capillary force, and rapid water transport.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jianping Chen, Bin Liu, Hang Cai, Shude Liu, Yusuke Yamauchi, Seong Chan Jun
Summary: This study develops a covalently interlayer-confined organic-inorganic hybrid for improving the reaction kinetics of supercapacitors. The covalent assembly facilitates cross-layer electron transfer, increases active sites, and enhances the specific capacitance and rate capability of the hybrid material.
Article
Chemistry, Multidisciplinary
Nagy L. Torad, Yuta Tsuji, Azhar Alowasheeir, Masako Momotake, Kazuki Okazawa, Kazunari Yoshizawa, Michio Matsumoto, Masafumi Yamato, Yusuke Yamauchi, Miharu Eguchi
Summary: To increase chemical reaction rates, general solutions include increasing the concentration/temperature and introducing catalysts. In this study, the rate constant of an electrophilic metal coordination reaction is accelerated 23-fold on the surface of layered aluminosilicate (LAS), where the reaction substrate (ligand molecule) induces dielectric polarization owing to the polar and anionic surface. This unique method to accelerate the chemical reaction is expected to expand the range of utilization of LASs, which are chemically inert, abundant, and environmentally friendly. The concept is also applicable to other metal oxides which have polar surfaces, which will be useful for various chemical reactions in the future.
Article
Chemistry, Multidisciplinary
Ayman H. Zaki, Nao Tsunoji, Yusuke Ide
Summary: Researchers modified the synthesis conditions to obtain green rust materials with controlled properties and discovered a sample with excellent solar photocatalytic activity for hydrogen production.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Dmitry Kogolev, Oleg Semyonov, Nadezhda Metalnikova, Maxim Fatkullin, Raul D. D. Rodriguez, Petr Slepicka, Yusuke Yamauchi, Olga Guselnikova, Rabah Boukherroub, Pavel S. S. Postnikov
Summary: We propose utilizing laser-assisted carbonization of surface-grown UiO-66 to diversify the upcycling of waste PET into materials with enhanced photothermal properties. A solvo-thermal procedure was used to form a homogeneous UiO-66 layer on recycled PET sheets. Treatment with a 405 nm laser system enabled the formation of a carbonaceous layer with improved electrical conductivity and photothermal properties due to the presence of zirconium carbide and graphene. This approach presents new possibilities for the application of upcycled PET-based materials.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Correction
Chemistry, Physical
Minjun Kim, Chaohai Wang, Jacob Earnshaw, Teahoon Park, Nasim Amiralian, Aditya Ashok, Jongbeom Na, Minsu Han, Alan E. Rowan, Jiansheng Li, Jin Woo Yi, Yusuke Yamauchi
Summary: This article presents a correction method for a novel supercapacitor, in which Co, Fe, and N co-doped 1D hollow carbon nanoboxes are used to enhance its performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Ping Cheng, Xiaohan Wang, Josua Markus, Md Abdul Wahab, Silvia Chowdhury, Ruijing Xin, Saad M. Alshehri, Yoshio Bando, Yusuke Yamauchi, Yusuf Valentino Kaneti
Summary: This work introduces coordinated water into Ni-BTC nanorods, resulting in their transformation to Ni-BTC nanofibres. The carbonization of the NiBTC nanofibres at 600 degrees C leads to the formation of carbon nanotube-decorated porous nickel/carbon hybrid with enlarged pores. The Ni/C-600 hybrid exhibits higher adsorption capacity and better recyclability compared to the original Ni-BTC nanorods.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Xiaohong Liu, Xingtao Xu, Xiaoxu Xuan, Wei Xia, Guilin Feng, Shuaihua Zhang, Zhen-Guo Wu, Benhe Zhong, Xiaodong Guo, Keyu Xie, Yusuke Yamauchi
Summary: In this study, a yolk-shell nanoarchitecture of NASICON-structured NTP/C materials (ys-NTP@C) was developed using a metal-organic framework@ covalent organic polymer (MOF@COP) as a sacrificial template and space-confined nanoreactor. ys-NTP@C exhibited good CDI performance with high salt adsorption capacities (SACs) and good cycling stability. This study provides a new synthetic paradigm for preparing yolk-shell structured materials and highlights the potential use of yolk-shell nanoarchitectures for electrochemical desalination.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Engineering, Chemical
Zeqiu Chen, Xingtao Xu, Kai Wang, Dong Jiang, Fanyue Meng, Ting Lu, Yusuke Yamauchi, Likun Pan
Summary: In this study, a hybrid material of pyrazine-based pi-conjugated organic molecule, hexaazatrinaphthalene (HATN), and MXene was reported. The combination of MXene as a conductive substrate and HATN as an electroactive material resulted in a unique 3D structure with increased ion transport channels, leading to enhanced charge transfer and ion diffusion rates. The obtained HATN/MXene composite exhibited a high desalination capacity of 57.5 mg g(-1), a fast desalination rate of 13.2 mg g(-1) min(-1), and good long-term stability. This work provides valuable insights for the design and application of organic molecules in the field of capacitive deionization.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Tugce Ustunel, Yusuke Ide, Sarp Kaya, Esmail Doustkhah
Summary: Green H2 generation through layered materials, such as layered titanates, plays a significant role in (photo)catalysis due to their high theoretical surface area. In this study, exfoliated few-layer sheets of titanate were successfully obtained by dilute HCl treatment without organic exfoliating agents. Sn single atoms were then loaded onto the exfoliated titanate, resulting in enhanced photocatalytic activity for H2 evolution. The optimized Sn-loaded exfoliated titanate exhibited better performance than conventional TiO2-based photocatalysts.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Mandeep K. Chahal, Masato Sumita, Jan Labuta, Daniel T. Payne, Jonathan P. Hill, Yusuke Yamauchi, Takashi Nakanishi, Takeshi Tanaka, Hiromichi Kataura, Kenji Koga, Hiroyuki Miyamura, Yoshihiro Kon, Dachao Hong, Shinsuke Ishihara
Summary: This study reports a chemiresistive sensor array composed of modified hydroxylamine salts and single-walled carbon nanotubes that can selectively detect formaldehyde vapor. By screening different types of salts, an ideal sensor array has been identified that can clearly discriminate trace amounts of formaldehyde from acetaldehyde. This system offers portable and reliable chemical sensors for advanced environmental monitoring and healthcare applications.
Article
Chemistry, Multidisciplinary
Vasilios Karanikolas, Takuya Iwasaki, Joel Henzie, Naoki Ikeda, Yusuke Yamauchi, Yutaka Wakayama, Takashi Kuroda, Kenji Watanabe, Takashi Taniguchi
Summary: High-quality emission centers in two-dimensional materials, such as carbon-enriched hexagonal boron nitride (hBN:C) layers, are promising for future photonic and optoelectronic applications. By placing hBN:C layers on Ag triangle nanoparticles (NPs), the decay time of atom-like color-center (CC) defects is accelerated to 46 ps from their bulk value of 350 ps, due to efficient excitation of plasmon modes. Simulations suggest higher Purcell values, and analysis reveals the influence of NP thickness on the Purcell factor of CCs. The ultrafast operation of CCs in hBN:C layers enables their use in demanding applications like single-photon emitters and quantum devices.
Article
Materials Science, Multidisciplinary
Roman Gulyaev, Oleg Semyonov, Georgy V. Mamontov, Alexey A. Ivanov, Daniil M. Ivanov, Minjun Kim, Vaclav Svorcik, Giuseppe Resnati, Ting Liao, Ziqi Sun, Yusuke Yamauchi, Pavel S. Postnikov, Olga Guselnikova
Summary: This study demonstrates the potential of halogen bonding (HaB) in functional materials for separation science, by introducing HaB elements into UiO-66 to fine-tune the adsorption properties towards chlorobenzenes (CBs).
ACS MATERIALS LETTERS
(2023)
Article
Chemistry, Physical
Hai Deng, Ziquan Wang, Minjun Kim, Yusuke Yamauchi, Stephen J. Eichhorn, Maria-Magdalena Titirici, Libo Deng
Summary: Capacitive deionization (CDI) is a promising technique for removing and recycling ions from wastewater. In this study, the co-ion expulsion effect and anode oxidation issues are addressed through material and system optimization. Porous carbons are prepared using biomass and KOH, and nitrogen-doping is found to influence the surface charge. An asymmetric CDI system with E-pzc matching is constructed, achieving high adsorption capacity and ion removal.
