Article
Chemistry, Physical
Yuqing Hu, Puhui Deng, Wenying Wang, Linping Zhang, Yu Hou
Summary: Element doping and collaboration with other cocatalysts are important strategies to improve CdS's photoelectrochemical properties. In this study, manganese cadmium sulfides (MnxCd1-xS) were synthesized by a solvothermal method. The Mn0.5Cd0.5S sample showed the best photocatalytic hydrogen production, and further enhancement was achieved by coupling Ni-POMs as cocatalysts. The highest efficiency was observed for 15-Ni-4-Mn0.5Cd0.5S, which formed a double type-II heterojunction.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Engineering, Chemical
Tansir Ahamad, Saad M. Alshehri
Summary: In this study, Ag-doped STO/g-CN heterojunctions were fabricated and characterized for their photo-electrochemical performance and photocatalytic activity. The results demonstrated that the nanocomposites exhibit excellent photocatalytic activity, with high degradation efficiency for Dicofol, and good reusability after multiple cycles.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
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
Chemistry, Multidisciplinary
Mamiko Nakabayashi, Tsuyoshi Takata, Naoya Shibata, Kazumaki Domen
Summary: The distribution of cocatalysts on a water splitting photocatalyst was found to be selective, indicating anisotropic charge transport.
Article
Materials Science, Multidisciplinary
M. Ahmadi Kafeshani, V. Mahdikhah, S. Sheibani
Summary: The preparation and properties of Ni-Cd co-doped SrTiO3 photocatalyst were studied. Doping can lower the band gap value and increase the photocatalytic efficiency, providing a basis for subsequent photodegradation experiments.
Article
Chemistry, Physical
Sen Jin, Zuhao Shi, Huijuan Jing, Libo Wang, Qianku Hu, Deliang Chen, Neng Li, Aiguo Zhou
Summary: The study introduces a visible-light photocatalyst Mo2C-MXene/CdS, which exhibits a higher H-2 production rate compared to catalysts based on noble metals or other MXenes, along with favorable electronic structures for water splitting. This heterostructure provides an efficient reaction site for the hydrogen evolution reaction, making it a promising catalyst with ultrahigh performance to replace noble-metal catalysts.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Jinfeng Liu, Ping Wang, Jiajie Fan, Huogen Yu, Jiaguo Yu
Summary: The study introduces a new synthesis strategy for the design of efficient cocatalysts by preparing graphene-modified Mo2C nanoparticles to enhance the photocatalytic hydrogen-generation rate of TiO2. The TiO2/rGO-Mo2C photocatalyst exhibited significantly improved hydrogen-generation activity compared to TiO2/rGO and TiO2, attributed to the synergistic action of graphene nanosheets and Mo2C nanoparticles.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Physical
Hiroshi Kominami, Ryuichi Yato, Atsuhiro Tanaka
Summary: TiO2 photocatalysts with different metal cocatalysts were used for the photocatalytic hydrogenation of quinoline in 2-propanol suspensions. It was found that Cu-TiO2 exhibited high efficiency for hydrogenation, while Rh-TiO2 showed higher H-2 yield. The hydrogenation rate of Cu-TiO2 was almost the same as that of Rh-TiO2 at a certain temperature. Solar light-induced hydrogenation over Cu-TiO2 and its expandability and reusability were also investigated.
Article
Chemistry, Physical
Hikaru Matsuoka, Osamu Tomita, Hiroyasu Tabe, Hajime Suzuki, Yusuke Yamada, Ryu Abe
Summary: This study reports the use of cobalt hexacyanoferrate as a cocatalyst on a visible-light-responsive oxynitride photocatalyst to improve oxygen evolution rate. The cobalt hexacyanoferrate showed higher stability in acidic conditions compared to conventional cobalt-based cocatalysts.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Chemistry, Physical
Li-Yu Ting, Yves Ira A. Reyes, Bing-Heng Li, Mohamed Hammad Elsayed, J. Ching-Wen Chan, Jayachandran Jayakumar, Chih-Li Chang, Wei-Cheng Lin, Yu-Jung Lu, Carmine Coluccini, Ho-Hsiu Chou, Hsin-Yi Tiffany Chen
Summary: In this study, the role of Pt metal cocatalyst and hydroxyl additives in the mechanism and activity of hydrogen evolution over the PCBM/PF3T organic nanohybrid was investigated. It was found that the addition of hydroxyl additives improved the hydrogen evolution reaction (HER) performance, achieving up to 70 mmol g(-1) h(-1) (AQY = 2.0%), which is among the best results for an organic HER photocatalyst. The enhanced activity is attributed to the binding of hydroxyl additives to Pt, which facilitates proton adsorption and more efficient H-2 formation. These findings have important implications for future organic photocatalyst designs.
ACS APPLIED ENERGY MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Tokuhisa Kawawaki, Masanobu Kawachi, Daichi Yazaki, Yuki Akinaga, Daisuke Hirayama, Yuichi Negishi
Summary: This review summarizes recent studies on the development and functionalization of visible-light-driven water-splitting photocatalysts, aiming to share current technology and future challenges with readers in various fields and expedite practical applications.
Article
Chemistry, Applied
Li Wang, Yukun Li, Chao Wu, Xin Li, Guosheng Shao, Peng Zhang
Summary: This study focuses on the synthesis of a dual cocatalysts system for photocatalytic solar fuel generation. The system, composed of cobalt phosphide and molybdenum carbide embedded on strontium titanate nanofibers, showed significant improvement in hydrogen evolution and CO2 reduction performance. The structure of the dual cocatalysts system effectively promoted spatial charge separation and enhanced photocatalytic performance. The research provides a theoretical basis and ideas for subsequent studies.
CHINESE JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Physical
Zhuang Xiong, Yidong Hou, Rusheng Yuan, Zhengxin Ding, Wee-Jun Ong, Sibo Wang
Summary: The rational interface tailoring of nanosheets on hollow spheres is a promising strategy to develop efficient photocatalysts for hydrogen production with solar energy. The hierarchical NiCo2S4@ZnIn2S4 hollow heterostructured photocatalysts showed excellent photocatalytic performance with high hydrogen evolution rate and good stability in the reaction, demonstrating the potential for practical application in hydrogen production. The study provides insight into the fabrication of hierarchical hollow heterostructures based on nanosheet semiconductor subunits as remarkable photocatalysts for hydrogen production.
ACTA PHYSICO-CHIMICA SINICA
(2022)
Article
Materials Science, Ceramics
K. Sharifian, V. Mahdikhah, S. Sheibani
Summary: In this research, carbon nanotube-modified plasmonic Ag@ SrTiO3 nanocomposites were prepared via sol-gel method for organic dye degradation. Incorporation of Ag and CNT reduced crystallite size and band gap energy, leading to greater charge transfer efficiency. Optimal catalyst dosage for complete dye degradation was determined, with Ag@SrTiO3@CNT sample exhibiting the most significant photocatalytic performance.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Lu Chen, Feng Chen, Shaoming Ying, Ruowen Liang, Guiyang Yan, Xuxu Wang, Yuzhou Xia
Summary: In this study, a WC@C cocatalyst was prepared and successfully enhanced the photocatalytic hydrogen evolution rate of CdS nanorods. The WC@C/CdS composite photocatalyst with a 7 wt% content of WC@C exhibited excellent photocatalytic performance with high hydrogen evolution rate and apparent quantum efficiency, as well as good stability in continuous cycling experiments.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Wataru Kurashige, Yutaro Mori, Shuhei Ozaki, Masanobu Kawachi, Sakiat Hossain, Tokuhisa Kawawaki, Cameron J. Shearer, Akihide Iwase, Gregory F. Metha, Seiji Yamazoe, Akihiko Kudo, Yuichi Negishi
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Chemistry, Physical
Shunya Yoshino, Akihide Iwase, Yun Hau Ng, Rose Amal, Akihiko Kudo
ACS APPLIED ENERGY MATERIALS
(2020)
Article
Chemistry, Physical
Shunya Yoshino, Ko Sato, Yuichi Yamaguchi, Akihide Iwase, Akihiko Kudo
ACS APPLIED ENERGY MATERIALS
(2020)
Article
Chemistry, Physical
Kenta Watanabe, Katsuya Iwashina, Akihide Iwase, Shunsuke Nozawa, Shin-ichi Adachi, Akihiko Kudo
CHEMISTRY OF MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Shunya Yoshino, Akihide Iwase, Yuichi Yamaguchi, Tomiko M. Suzuki, Takeshi Morikawa, Akihiko Kudo
Summary: In this study, we demonstrated the photocatalytic reduction of CO2 using water as an electron donor under visible light irradiation. The Z-scheme system using bare (CuGa)(0.5)ZnS2 photocatalyst and RGO-(CoOx/BiVO4) as an O2-evolving photocatalyst exhibited efficient CO production accompanied by H2 and O2 evolution. The addition of a basic salt enhanced the CO formation rate and selectivity. This Z-scheme system also showed activity for solar CO2 reduction using water as an electron donor. The bare (CuGa)(0.5)ZnS2 powder loaded on an FTO glass was used as a photocathode, resulting in the production of CO and H2 with high Faradaic efficiencies.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Review
Chemistry, Multidisciplinary
Shunya Yoshino, Tomoaki Takayama, Yuichi Yamaguchi, Akihide Iwase, Akihiko Kudo
Summary: Photocatalytic and photoelectrochemical CO2 reduction is a promising chemical process for solving resource, energy, and environmental problems. It converts solar energy into chemical products using water as electron and proton sources. Photocatalytic CO2 reduction employing powdered materials is a low-cost and scalable system. The use of water as an electron donor is key for achieving artificial photosynthetic CO2 reduction.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Hirofumi Fukai, Kengo Nagatsuka, Yuichi Yamaguchi, Akihide Iwase, Akihiko Kudo
Summary: A powder-based Cu3VS4 photoelectrode with a band gap of 1.5-1.6 eV that is responsive to the entire range of visible light has been successfully fabricated using a particle transfer method. The photocathodic performance of the Cu3VS4/Au photoelectrode, with a Au-contacting layer, was significantly enhanced compared to previous methods. Loading a Pt cocatalyst further improved the photocathodic performance.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2022)
Article
Energy & Fuels
Akihide Iwase, Haruka Misono
Summary: Metal oxides are attractive photocatalysts for water splitting, but there is a lack of visible-light-responsive metal oxide photocatalysts. In this study, the researchers demonstrated overall water splitting under visible light irradiation using Ir and A-codoped KTaO3 photocatalysts. The codoping of Ca, Sr, Ba, and La contributes to the formation of fine photocatalyst particles and stabilization of doped Ir as trivalent. The Rh-core/Cr2O3-shell cocatalyst loaded by photodeposition is effective for overall water splitting over Ir and La-codoped KTaO3. Rh/Cr2O3-loaded KTaO3 codoped with Ir and La also shows activity for solar water splitting.
Article
Chemistry, Multidisciplinary
Tomoaki Takayama, Akihide Iwase, Akihiko Kudo
Summary: An AgSr2Ta5O15 photocatalyst with Ag+ substitution was found to be effective for water splitting and CO2 reduction. DFT calculation and diffuse reflection spectra revealed that the Ag d-orbital contributed to a narrower band gap (3.91 eV) compared to NaSr2Ta5O15 (4.11 eV).
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Akihide Iwase, Miyu Kasahara, Haruka Misono
Summary: Ru-doped KTaO3 prepared by solid-state reaction with a Rh-core/Cr2O3-shell co-catalyst exhibits high efficiency in overall water splitting into H-2 and O-2 under visible light irradiation. The water splitting activity is further enhanced by codoping with a suitable amount of La.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Akihide Iwase, Koki Yagishita
Summary: The effectiveness of treating a (CuGa)(0.5)ZnS2 H-2-evolving photocatalyst in an aqueous Na2S solution for Z-schematic water splitting under visible light irradiation is demonstrated by suppressing undesired consumption of photogenerated holes, including photocorrosion of (CuGa)(0.5)ZnS2.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Akihide Iwase, Rikako Sakamoto, Haruka Misono
Summary: Ir and Sr-codoped KNbO3 is a new photocatalyst that can generate O2 under visible light irradiation, and it works in conjunction with other photocatalysts for Z-schematic water splitting.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Akihide Iwase, Haruka Misono
Summary: Ir and La-codoped KTaO3 is a novel powdered photocatalyst that responds to visible light up to a wavelength of 600 nm and can split water into H-2 and O-2 under visible light irradiation when loaded with RhCrO3.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Sho Suzuki, Akihide Iwase, Akihiko Kudo
CATALYSIS SCIENCE & TECHNOLOGY
(2020)
Article
Chemistry, Multidisciplinary
Kenta Watanabe, Akihide Iwase, Akihiko Kudo
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)
