Article
Chemistry, Physical
Yuriy Pihosh, Vikas Nandal, Tomohiro Higashi, Ryota Shoji, Raman Bekarevich, Hiroshi Nishiyama, Taro Yamada, Valeria Nicolosi, Takashi Hisatomi, Hiroyuki Matsuzaki, Kazuhiko Seki, Kazunari Domen
Summary: Designing photoanode semiconducting materials with visible-light absorption and minimal charge-carrier recombination for achieving efficient solar-to-hydrogen (STH) conversion is challenging. Hybrid Ta3N5 nanorods and thin films are developed on transparent GaN/Al2O3 substrates to overcome these challenges and achieve high-performance STH energy conversion.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Hamidreza Jouypazadeh, Hossein Farrokhpour, Mohamad Mohsen Momeni
Summary: This study investigates the water-splitting photocatalytic properties of pristine, Nb-doped, and V-doped Ta3N5 monolayer nanosheets using periodic density functional theory calculations. The results show that V-doped, Nb-doped, and pristine (111) Ta3N5 monolayer nanosheets are the best overall water splitting photocatalysts, while V-doped (100), V-doped (101), and V-doped (110) Ta3N5 nanosheets are the most suitable p-type photocatalysts for the H2 reduction half-reaction under sunlight irradiation.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Hongquan Jiang, Yuhan Shi, Shuying Zang
Summary: A novel Pd/PdO and hydrous RuO2 difunction-modified SiO2@TaON@Ta3N5 core-shell structured photocatalyst was successfully synthesized, showing excellent photocatalytic activity for overall water splitting. The catalyst achieved a high H2 production rate of 473.52 μmol(-1)g(-1).h(-1), which was 2.86 times higher than the unmodified catalyst. The catalyst also displayed good stability against photocorrosion and had an apparent quantum yield of 0.253%.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Chemical
Monika Sindhu, Ajit Sharma, Vijaykumar Patel, Amika Gahlawat, Prabal Pratap Singh, Karan Singh Maan, Deepak Kumar, Van-Huy Nguyen
Summary: The production of hydrogen in water-splitting can be greatly enhanced by designing efficient and cost-effective photocatalysts. This study focuses on investigating the photocatalytic activity of soot carbon-based metal nitrides nanocomposites under solar light exposure. The results show that by modifying a Ta3N5/PANI composite photocatalyst with biomass soot carbon, the hydrogen production rate can be significantly increased compared to pure Ta3N5, thanks to the formation of a p-n heterojunction at the interface of PANI and Ta3N5.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Chemistry, Applied
Kaiqi Xu, Athanasios Chatzitakis, Sanne Risbakk, Mingyi Yang, Paul Hoff Backe, Mathieu Grandcolas, Magnar Bjoras, Truls Norby
Summary: In this study, Co-based cocatalysts were electrodeposited on mesoporous Ta3N5 nanotubes to achieve a photocurrent density of 6.3 mA/cm(2) at 1.23 V vs. SHE under simulated solar illumination. The best performing electrode not only exhibited high photocurrent density, but also improved stability under intense photoelectrochemical water splitting conditions. The dual function of the cocatalyst in enhancing both photoelectrochemical performance and stability was highlighted.
Article
Chemistry, Physical
Tomohiro Higashi, Hiroshi Nishiyama, Yuriy Pihosh, Kaisei Wakishima, Yudai Kawase, Yutaka Sasaki, Akira Nagaoka, Kenji Yoshino, Kazuhiro Takanabe, Kazunari Domen
Summary: The self-conductivity of tantalum nitride (Ta3N5) thin film-based semitransparent photoanodes can enhance the current in the photoelectrochemical oxygen evolution reaction (PEC OER) without a conducting substrate. By modifying the surface with NiFeOx-electrocatalyst, an optimized Ta3N5 thin film directly fabricated on a transparent insulating quartz substrate achieved a photocurrent density of about 5.9 ± 0.1 mA cm-2 at 1.23 V vs. the reversible hydrogen electrode under simulated AM 1.5G solar illumination. The relationship between the PEC OER performance of NiFeOx-modified Ta3N5 photoanodes and the electrical properties of Ta3N5 thin films was investigated using Hall effect measurements.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Kejian Lu, Fei Xue, Feng Liu, Mengfan Li, Wenlong Fu, Hao Peng, Chunyang Zhang, Jie Huang, Ze Gao, Hongwen Huang, Maochang Liu
Summary: In this study, atomic-scale N-doped NaTaO3@Ta3N5 core-shell cubes were prepared by nitridation of cubic NaTaO3. The core-shell heterojunctions exhibited efficient and stoichiometric evolution of H2 and O2 from photocatalytic overall water splitting, with a quantum efficiency of 2.18% at 550 nm. The successful performance was attributed to the thin Ta3N5 shell, increased lifetimes of the photogenerated charges, and the type-I band alignment that promoted smooth charge flow from N-NaTaO3 to Ta3N5. The efficiency was further improved to 6.28% by in situ deposition of a Rh@Cr2O3 core-shell cocatalyst.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Xiaoyan Cai, Liang Mao, Mamoru Fujitsuka, Tetsuro Majima, Sujan Kasani, Nianqiang Wu, Junying Zhang
Summary: Pristine and Bi-doped lanthanum titanium oxide nanosheets were synthesized as photocatalysts for overall solar water splitting, eliminating surface hole traps and enhancing photocatalytic activity. However, increasing the Bi-dopant level beyond 5 at.% resulted in the formation of localized states above the valence band, reducing the lifetime of photogenerated charge carriers and jeopardizing photocatalytic activity. By addressing surface trapping and surface catalysis issues, an effective strategy was proposed for nanostructured metal oxide photocatalysts.
Article
Chemistry, Physical
Ki-Yong Yoon, Juhyung Park, Hosik Lee, Ji Hui Seo, Myung-Jun Kwak, Jun Hee Lee, Ji-Hyun Jang
Summary: Doping engineering plays a crucial role in controlling the electrical, optical, and structural properties of semiconductors. Understanding interactions between impurities can lead to the efficient fabrication of photoelectrodes.
Article
Chemistry, Physical
Yusaku Matsui, Tetsuya Yamada, Sayaka Suzuki, Takeharu Yoshii, Hirotomo Nishihara, Katsuya Teshima
Summary: The study demonstrates a new method of fabricating Ta3N5 photoanodes using evaporated TaF5 as the source of tantalum. The as-synthesized Ta3N5 layers were uniformly deposited on different large-area substrates with columnar crystals, functioning as efficient active photoanodes for PEC water splitting. This approach could lead to high-quality Ta-based photoanodes over large areas, using insights gained from the precursor TaF5 for nitrides.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
S. Munusamy, K. Sivaranjan, P. Sabhapathy, P. S. Ramesh, V Narayanan, Faruq Mohammad, Suresh Sagadevan
Summary: In this study, Ta3N5-TaON-PEDOT-PANI nanohybrids were synthesized and evaluated for electrochemical oxidation and dye degradation applications. The nanohybrids showed excellent activity and stability towards MBZ oxidation and photocatalytic dye degradation, with a highest dye degradation efficiency of > 97% obtained. A plausible dye degradation mechanism was proposed based on UV-Vis spectra, confirming the potential catalytic oxidation and degradation behavior of the nanohybrids.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Tomohiro Higashi, Yutaka Sasaki, Yudai Kawase, Hiroshi Nishiyama, Masao Katayama, Kazuhiro Takanabe, Kazunari Domen
Summary: The study demonstrates that surface modification of Ta3N5 photoanodes with NiFeOx significantly enhances the water splitting efficiency of PEC cells. A PEC cell constructed with NiFeOx/Ta3N5 photoanode and LTCA:Al photocathode achieves stoichiometric hydrogen and oxygen generation from water splitting without the need for an external bias voltage.
Article
Chemistry, Physical
Surbhi Sharma, Dheeraj Kumar, Neeraj Khare
Summary: The study presents a nanocomposite photoelectrode of PANI/Bi2S3 with enhanced photocurrent density and charge separation efficiency. The improved PEC performance of PANI/Bi2S3 is attributed to its hierarchical semiconductor heterojunction, visible light absorption, and efficient charge transport properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Qiang Wang, Lingxia Zhang, Bing Li, Hongmin Zhu, Jianlin Shi
Summary: Solar-driven photoelectrochemical (PEC) water splitting relies on efficient and stable photoanodes for the water oxidation reaction. Here, three-dimensional interconnected nanoporous Ta3N5 film photoanodes with controlled thickness were successfully fabricated, showing the highest PEC performance at 900 nm thickness. Electrochemical oxidation at high anodic potentials resulted in severe performance degradation, which could be partially recovered by NH3 re-treatment, while anchoring a dual-layer Co(OH)(x)/CoOOH co-catalyst shell significantly enhanced PEC performance and stability.
SCIENCE CHINA-MATERIALS
(2021)
Article
Physics, Applied
Gideon Segev, Jakob Kibsgaard, Christopher Hahn, Zhichuan J. Xu, Wen-Hui (Sophia) Cheng, Todd G. Deutsch, Chengxiang Xiang, Jenny Z. Zhang, Leif Hammarstrom, Daniel G. Nocera, Adam Z. Weber, Peter Agbo, Takashi Hisatomi, Frank E. Osterloh, Kazunari Domen, Fatwa F. Abdi, Sophia Haussener, Daniel J. Miller, Shane Ardo, Paul C. McIntyre, Thomas Hannappel, Shu Hu, Harry Atwater, John M. Gregoire, Mehmed Z. Ertem, Ian D. Sharp, Kyoung-Shin Choi, Jae Sung Lee, Osamu Ishitani, Joel W. Ager, Rajiv Ramanujam Prabhakar, Alexis T. Bell, Shannon W. Boettcher, Kylie Vincent, Kazuhiro Takanabe, Vincent Artero, Ryan Napier, Beatriz Roldan Cuenya, Marc T. M. Koper, Roel Van de Krol, Frances Houle
Summary: The performance of solar fuel generation devices has made progress, but still faces many scientific and engineering challenges. There is a need to significantly improve conversion efficiency, stability, and product selectivity at the electrode and device level. Additionally, maintaining these performance metrics while scaling up devices and systems and controlling costs and carbon footprint is crucial. This roadmap surveys various aspects of solar fuel generation, highlighting the current state of the art, key challenges, and advancements required to meet them. It can serve as a guide for researchers and funding agencies in addressing the most pressing needs of the field.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Engineering, Environmental
Muhammad Sultan Irshad, Yabin Hao, Naila Arshad, Muneerah Alomar, Liangyou Lin, Xiuqiang Li, Swelm. Wageh, Omar A. Al-Hartomy, Abdullah G. Al-Sehemi, Van-Duong Dao, Hao Wang, Xianbao Wang, Han Zhang
Summary: This study reports a highly efficient solar evaporator with improved evaporation rate and resistance to salt accumulation. The system is achieved by depositing Fe3O4@PPy nanospheres on a self-floating cellulose evaporator and optimizing the positive charge density of R-NH+ groups. It also demonstrates the capability to generate electricity from solar energy.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Nam-Anh Tran, Nguyen Thi Hien, Nguyen Minh Hoang, Hai-Linh Thi Dang, Do Quang Huy, Tran Van Quy, Nguyen Thi Hanh, Ngoc Hung Vu, Van-Duong Dao
Summary: Carbon dots (CDs) have gained significant attention in recent years due to their excellent properties. Their applications in various fields such as energy conversion and storage, photovoltaics, biomedical, and environmental treatment have been explored. This progress report summarizes the recent achievements in the synthesis and applications of CDs in environmental treatment and protection, including pollutant detection, adsorption, degradation, solar-to-steam generation system, separation membranes, and antibacterial and anti-fungal activities. The future opportunities and challenges in developing CDs applications for environmental issues are also discussed.
Article
Chemistry, Inorganic & Nuclear
Nguyen Minh Hoang, Nguyen Thi Bich Ngoc, Le Thi Phuong Thao, Nam-Anh Tran, Dao Thi My Hanh, Phan Thi Lan Huong, Quang-Duy Dao, Le Tu, Ho Xuan Nang, Van-Duong Dao
Summary: We present a facile method for the synthesis of dual-emission carbon dots (DE-CDs) and study the effect of reaction temperature on their morphology and optical properties. The prepared DE-CDs exhibit two emission peaks at 430 and 520 nm, and the reaction temperature has a significant impact on their morphology and fluorescence properties. The intensity ratio between the main peak at 430 nm and the sub-peak at 520 nm can be manipulated by varying the reaction temperature, which is beneficial for various applications.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Analytical
Xuyan Liu, Lei Sun, Ngoc Hung Vu, Dang Thi Hai Linh, Phan Thi Dien, Le Thi Hoa, Do Thi Lien, Ho Xuan Nang, Van-Duong Dao
Summary: LiFePO4/carbon/graphene (LFP/C/G) composites were synthesized through a solvothermal method. The combination of graphene and carbon coating resulted in improved electrochemical properties of LFP/C/G composites compared to LFP/C-15 and LFP/G-5. Particularly, LFP/C/G with a graphene content of 15% exhibited the highest initial discharge specific capacity and a high capacity retention rate after cycling, proving the promising technique of co-modification with graphene and carbon coating for LFP improvement.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Biochemical Research Methods
Hoang Nguyen Minh, Ngoc Nguyen Thi Bich, Huong Phan Thi Lan, Huyen Phan Thi Thanh, Duy Dao Quang, Van-Duong Dao, Tu Le Tuan
Summary: Herein, dual-emission carbon dots (DE-CDs) were synthesized using a one-pot hydrothermal method. DE-CDs exhibited two well-separated peaks at 433 and 513 nm under ultraviolet excitation. The prepared DE-CDs offer selective detection of Fe3+ ions via inner filter effect (IFE) and Pb2+ ions via aggregation-induced enhancement (AIE). The obtained DE-CDs showed a good affinity for both Fe3+ and Pb2+ ions in the presence of various interfering ions. The limits of detection were 0.797 ppm and 4.739 ppm for Pb2+ and Fe3+, respectively. The finding reveals the huge potential of DE-CDs for the selective detection of multiple targets in one solution.
JOURNAL OF FLUORESCENCE
(2023)
Article
Energy & Fuels
Pham Thi Lan Huong, Nguyen Van Quang, Nguyen Thi Huyen, Ha Thu Huong, Duong Anh Tuan, Manh Trung Tran, Quang Vinh Tran, Ta Ngoc Bach, Nguyen Tu, Van-Duong Dao
Summary: ZnO/Fe3O4 heteronanostructures exhibited enhanced photocatalytic activity under both UV and visible light, with up to 99.7% degradation efficiency for methylene blue. The enhancement could be explained by electron transfer.
Review
Chemistry, Multidisciplinary
Muhammad Sultan Irshad, Naila Arshad, M. Sohail Asghar, Yabin Hao, Muneerah Alomar, Shaohui Zhang, Jian Zhang, Jinming Guo, Iftikhar Ahmed, Naveed Mushtaq, M. A. K. Yousaf Shah, Laila Noureen, S. Wageh, Omar A. Al-Hartomy, Abul Kalam, Van-Duong Dao, Hao Wang, Xianbao Wang, Han Zhang
Summary: This study provides a systematic review of the recent advancements in the application of emerging 2D materials in solar-driven interfacial evaporation systems, aiming to promote the utilization of underutilized auxiliary energy sources in future integrated water, energy, and environmental systems. The research discusses the latest progress in 2D photothermal materials, including structural optimization strategies, modulation of photothermal performances, and hybrid applications in thermoelectricity, salt recovery, and hydrogen production. The challenges and future perspectives of 2D emerging materials and their hybrid evaporation structures are also mentioned.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Naila Arshad, Muhammad Sultan Irshad, Muneerah Alomar, Jinming Guo, M. Sohail Asghar, Naveed Mushtaq, M. A. K. Yousaf, Uzma Ghazanfar, Matiullah Shah, Xianbao Wang, Yabin Hao, Lien Thi Do, Van-Duong Dao, Hao Wang, Zhengbiao Ouyang, Han Zhang
Summary: Solar-driven water purification technology using advanced functional nanomaterials achieves efficient water evaporation and thermoelectric generation, exhibiting excellent salt resistance and thermal insulation properties, with potential applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Van Toan Nguyen, Duy Khoe Dinh, Nguyen M. C. H. P. Lan, Quang Hung Trinh, Md. Mokter Hossain, Van-Duong Dao, Young Sun Mok
Summary: This paper explores the formation and role of reactive species in the degradation of MEK using plasma catalysis in a honeycomb monolith reactor. Various experiments were conducted with different discharge gases and a novel method was introduced to identify the reactive species and their contributions. The study found that O atoms play a dominant role in the plasma catalytic removal of MEK and oxygen activation from surface chemisorption contributes mainly to MEK oxidation. The proposed reaction mechanisms were based on the analysis of byproducts.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Chemistry, Analytical
Ngoc Hung Vu, Hong Ha Thi Vu, Ho Xuan Nang, Phan Thi Dien, Le Thi Hoa, Won Bin Im, Vu Thu Ha, Luu Anh Tuyen, Nguyen Quang Hung, Van-Duong Dao
Summary: The conflicting roles of F doping on the electrochemical performance of layered-spinel Li1.2Mn0.75Ni0.25O2-zFz (z = 0, 0.05, 0.1) cathode materials are studied. F doping content affects the phase ratio and leads to different effects on the cathode. When z = 0.05, it improves cycle stability but reduces cathode capacity. However, increasing F doping to z = 0.1 results in the best cycle stability with high capacity retention.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Minh Hoang Nguyen, Nguyen Thi Bich Ngoc, Hoang Van Huy, Quang Duy Dao, Tuan Tu Le, Hai-Linh Thi Dang, Nam-Anh Tran, Vu Quang Minh, Tran Van Tan, Do Thi Lien, Nguyen Thi Khanh Huyen, Van-Duong Dao
Summary: Water purification by solar distillation using carbonaceous materials as sorption layer is a green and promising approach. In this study, carbon spheres and carbon dots were synthesized and used to construct a closed water treatment system. The carbon spheres acted as solar-thermal membranes for water harvesting and purification of Fe3+ ions, while the carbon dots were used to determine the Fe3+ ions in water. The system showed a high evaporation rate and efficient treatment of Fe3+ ions. The work represents a significant step forward in the field of closed water treatment systems.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Analytical
Hoang Hiep, Pham Tuan Anh, Van-Duong Dao, Dang Viet Quang
Summary: TiO2 nanoparticles grafted on lightweight fired clay were used as a floating photocatalyst to remove herbicide 2,4-D from water. Experimental results showed that 60.2% of 2,4-D could be decomposed in 250 min under UV light with the TiO2-grafted floating photocatalyst. The floating photocatalysts can degrade approximately 50% 2,4-D in 250 min under sunlight and the degradation efficiency is stable for cycles. The study highlights the potential and greener approach of using floating photocatalysts for removing herbicide contaminants in water.
JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY
(2023)
Article
Green & Sustainable Science & Technology
Muhammad Sultan Irshad, Naila Arshad, Jian Zhang, Changyuan Song, Naveed Mushtaq, Muneerah Alomar, Tariq Shamim, Van-Duong Dao, Hao Wang, Xianbao Wang, Han Zhang
Summary: A hierarchical design of interfacial solar evaporation is reported, which achieves enhanced photothermal conversion, waste heat storage/release, and effective thermal management for continuous desalination. The solar evaporator consists of worm-like SrCoO3 perovskite oxide anchored on super hydrophilic polyurethane foam and conducting polypyrrole. The solar evaporator exhibits excellent evaporation rates and solar-to-vapor conversion efficiency, as well as heat storage and salt-resistant capability.
ADVANCED ENERGY AND SUSTAINABILITY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Van Tan Tran, Van-Duong Dao, Huu-Quang Nguyen, Lemma Teshome Tufa, Jaebeom Lee, Van-Tuan Hoang, Anh-Tuan Le
Summary: This study introduces a novel, selective, and straightforward paper-based colorimetric sensing platform for the detection of chloride ions in water. The method utilizes magnetoplasmonic nanoparticles and is based on the chemical reaction between silver ions and chloride ions. The assay demonstrates high sensitivity, selectivity, and stability, making it applicable for chloride analysis in various technological fields.
Review
Chemistry, Multidisciplinary
Top Khac Le, The-Hung Mai, Muhammad Aamir Iqbal, Dimitra Vernardou, Van-Duong Dao, Vinoth Kumar Ponnusamy, Chandra Sekhar Rout, Phuong V. Pham
Summary: Graphene has gained attention for solar energy harvesting due to its unique features. However, limitations such as band gapless molecular orbitals, vulnerability to oxidation, and toxic properties hinder its widespread adoption. Researchers have explored methods to improve graphene/Si-based solar cells by doping with ionic liquids and optimizing the interface between graphene and silicon. Despite progress, challenges including low Schottky barrier height, transfer techniques, and high lateral resistivity still need to be addressed.
Article
Chemistry, Physical
Yifan Sun, Ye Lv, Wei Li, Jinli Zhang, Yan Fu
Summary: In this study, PtRu electrocatalysts were fabricated on carbon paper via cyclic electrodeposition for the electrocatalytic hydrogenation (ECH) of phenol. The Pt3Ru3 catalyst exhibited excellent activity and stability for the conversion of phenol to cyclohexanol at ambient temperature and various current densities. The in situ Raman spectroscopy and kinetic study revealed the hydrogenation mechanism of phenol over Pt3Ru3 in acidic electrolyte, providing an effective electrochemical strategy for the facile construction of durable electrode materials and efficient phenol hydrogenation.
JOURNAL OF CATALYSIS
(2024)
Article
Chemistry, Physical
Amir Shahzad, Khezina Rafiq, Muhammad Zeeshan Abid, Naseem Ahmad Khan, Syed Shoaib Ahmad Shah, Raed H. Althomali, Abdul Rauf, Ejaz Hussain
Summary: Photocatalytic hydrogen production through water splitting is an effective method for meeting future energy demands. In this study, researchers synthesized a 1 % Ag2S/Cu2S co-doped CdZnS catalyst and found that it can produce hydrogen at a higher rate. The co-doping of Ag2S and Cu2S in the CdZnS catalyst showed a synergistic effect, with Ag2S promoting oxidation reactions and Cu2S promoting reduction reactions.
JOURNAL OF CATALYSIS
(2024)
