Article
Materials Science, Ceramics
Shipra Choudhary, Manisha Sharma, Venkata Krishnan, Satyabrata Mohapatra
Summary: This study successfully prepared magnetically separable CoFe2O4-ZnO hybrid nanostructures and characterized their structure and morphology using various techniques. CoFe2O4-ZnO exhibited significantly enhanced photocatalytic performance compared to pristine CoFe2O4 due to its high light utilization ability and heterojunction formation that delayed charge carrier recombination. The study provides an efficient solution for sunlight-responsive magnetically separable CoFe2O4-ZnO photocatalyst in wastewater purification.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Shipra Choudhary, Dilruba Hasina, Mahesh Saini, Mukesh Ranjan, Satyabrata Mohapatra
Summary: ZnFe2O4-ZnO heterojunction photocatalysts were successfully fabricated using a simple co-precipitation method, showing superior photodegradation performance and stability for large-scale photocatalytic applications. The efficient sunlight utilization ability and suppression of recombination of charge carriers contribute to the improved photocatalytic performance of the ZnFe2O4-ZnO nanostructures. (C) 2021 Elsevier B.V. All rights reserved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Shipra Choudhary, Kavita Sahu, Aditi Bisht, Biswarup Satpati, Satyabrata Mohapatra
Summary: ZnO nanowires and nanoplates with enhanced photocatalytic performance were successfully prepared via one-step thermal decomposition of zinc acetate dihydrate. The increase in thermal decomposition temperature led to the formation of ZnO nanoparticles and nanorods. The ZnO nanostructures exhibited a decrease in band gap and quenching of defect emissions with the increase in thermal decomposition temperature, resulting in significantly improved photocatalytic activity.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Ceramics
Shipra Choudhary, Aditi Bisht, Satyabrata Mohapatra
Summary: This study reports the use of magnetically separable alpha-Fe2O3/ZnFe2O4/ZnO ternary hybrid nanodiscs for solar-driven highly efficient photocatalytic decomposition of toxic organic contaminants. The hybrid nanostructures showed excellent photocatalytic performance under solar light illumination, efficiently decomposing organic dyes and demonstrating reusability and easy magnetic separation. In-situ scavenger studies identified center dot OH radicals as the main active radicals in the photocatalysis process.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Electrical & Electronic
Minggao Zhang, Guangqing Gai, Fei Bi, Liyan Wang
Summary: This study investigates the synthesis of different morphologies of zinc oxide (ZnO) materials using a hydrothermal method, with the assistance of ethylene glycol (EG). The volume ratio of EG to H2O was found to play a key role in the morphology control of ZnO. The obtained photocatalysts were characterized and evaluated, and it was found that ZnO with flower cluster-like morphology, synthesized with a volume ratio of EG to H2O of 6:9, exhibited significantly higher photocatalytic efficiency than other samples.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Inorganic & Nuclear
Ankica Saric, Martina Vrankic, Dirk Luetzenkirchen-Hecht, Ines Despotovic, Zeljka Petrovic, Goran Drazic, Franz Eckelt
Summary: Hydrothermal synthesis of ZnO particles was carried out in pure aqueous solution and aqueous NaOH solution. The presence of NaOH affected the growth mechanism and photocatalytic performance of ZnO structures. The formation of ZnO nanostructures was influenced by the interaction through O-H hydrogen bonds in different solutions.
INORGANIC CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Lalita Buengkitcharoen, Sittipong Amnuaypanich, Suriyabhorn Naknonhan, Sirinuch Loiha, Nopbhasinthu Patdhanagul, Ammarika Makdee, Sujitra Amnuaypanich
Summary: Metallic Ag nanoparticles were prepared on ZnO photocatalysts through sol-gel autocombustion and ion-impregnation. The presence of impregnated Ag as nanoparticles on ZnO surfaces affected the microstructure of ZnO particles. The Ag/ZnO composites showed higher photocatalytic activity for sucrose degradation under UV light compared to pure ZnO, attributed to the suppression of surface defects and electron-hole recombination.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Loubna El Faroudi, Latifa Saadi, Abdellatif Barakat, Mohammed Mansori, Karima Abdelouahdi, Abderrahim Solhy
Summary: The aim of this study was to synthesize nanostructured ZnO using a soft-chemical method through biopolymer gelation, and then utilize the prepared oxides as photocatalysts for the oxidation of the Orange G dye. The difference in gelation mechanisms of four tested biopolymers and various experimental parameters were investigated to control the growth of nanostructured ZnO. The sample prepared with chitosan showed the best photocatalytic performance with 99.3% degradation of the Orange G dye in 180 minutes, due to its specific surface area and morphology.
Article
Chemistry, Multidisciplinary
Yufu Zhu, Jiaying Yan, Lei Zhou, Liangdong Feng
Summary: This paper demonstrates the synthesis of rhombic ZnO microrods surrounded by ZnO nanorods on zinc foils using a hydrothermal method. Photocatalytic degradation of Rhodamine B solution was employed to evaluate the photocatalytic performance of the fabricated samples. The hierarchical micro/nanostructures formed by ZnO nanorods surrounding the surfaces of rhombic ZnO microrods exhibited superior photocatalytic performance compared to rhombic Zn(OH)F and ZnO microrods. The enhanced performance can be attributed to the larger surface area of the hierarchical ZnO micro/nanostructures. Additionally, the ZnO nanorods grown on the rhombic ZnO microrods demonstrated recyclability and relatively stable photocatalytic performance.
Article
Chemistry, Multidisciplinary
Yanmin Sun, Rui Tan, Zhouzheng Jin, Yiming Zhang, Xiaoyun Li, Qi Cai, Jun Nan, Dan Liu, Haibin Yu, Jianzhou Gui
Summary: Yolk-shell structures are widely used in catalysis and energy storage. In this study, Mn2+ doped hierarchical CuS yolk-shell microspheres were synthesized and the influence of reaction time on their structure and morphology was investigated. A rational phenomenological approach was proposed to describe the formation mechanism of the yolk-shell structures, and it was found that Mn2+ doping improved the photoreduction performance.
Review
Chemistry, Multidisciplinary
Yonghui Shi, Zhanfeng Zhao, Dong Yang, Jiangdan Tan, Xin Xin, Yongqi Liu, Zhongyi Jiang
Summary: This article summarizes the recent advances and challenges in photocatalytic ammonia synthesis (PAS) from an engineering perspective. It discusses the materials engineering, structure engineering, and reaction engineering aspects of PAS, including the commonly used photocatalytic materials, design of photocatalysts, and key processes in the PAS reaction.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Chemistry, Physical
Moukaila Fatiya Khadidja, Jincheng Fan, Songyang Li, Shidong Li, Kexin Cui, Jianghong Wu, Wengao Zeng, Huige Wei, Hong-Guang Jin, Nithesh Naik, Zisheng Chao, Duo Pan, Zhanhu Guo
Summary: ZnO/MXene composites were prepared by a two-step chemical reaction method in this study, and their structures and photocatalytic performances were systematically investigated. ZnO particles and microrods showed different distributions on the Ti3C2 layers at different growth temperatures, with ZnO microrods/MXene composites exhibiting good photocatalytic efficiency.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Multidisciplinary
Xiaoyu Wang, Jiangang Wei, Yuqin Mao, Wenqin Li, Xiangrong Zhu, Pengwei Wang, LuPing Zhu
Summary: The study demonstrates that introducing SnCl2 into the reaction system can lead to the preparation of Sn-doped ZnO hierarchical structures with enhanced photocatalytic activity. These structures exhibit unique morphology and recyclability, making them promising for applications in environmental remediation and energy conversion.
Article
Materials Science, Multidisciplinary
Xiaofang Qin, Honglan Cai, Feng Wang, Ping Yin, Xiaofeng Zhang
Summary: ZnO nanostructures with different morphologies were successfully prepared by hydrothermal synthesis, and their properties were characterized by XRD, SEM, TEM, and PL. The results showed that the morphology of ZnO changed from particles and flowers to rods with an increase in the amount of added NaOH. The different morphological ZnO samples exhibited similar emissions and high photocatalytic activity.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Engineering, Electrical & Electronic
Vijaya Kumari, Shankar Sharma, Anuradha Sharma, Kavitha Kumari, Naveen Kumar
Summary: The study investigated the impact of synthesis conditions on the characteristics of hybridized ZnO nanocomposites and the photodegradation kinetics of Triclopyr using hydrothermally synthesized ZnO/CuO materials. It was found that synthesis conditions greatly influence the morphology, particle size, and crystal growth of nanomaterials.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Ting Ru Chen, Takuya Hasegawa, Sung Hun Cho, Tomoyo Goto, Tohru Sekino, Masato Kakihana, Shu Yin
Summary: A YBaCo4O7 oxygen storage material was synthesized at a low temperature of 800 degrees C using the glycine-complex decomposition method. Its crystal structure and reaction kinetics were investigated, and it exhibited the highest storage/release speed among all the reported YBaCo4O7+delta materials.
CHEMICAL COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Zijing Wang, Fen Wang, Angga Hermawan, Jianfeng Zhu, Shu Yin
Summary: This work introduces a surface modification strategy using oxygen plasma irradiation to enhance the room temperature sensing performance of Ti3C2Tx MXene. The irradiation induced the formation of TiO2 on the surface and improved the adsorption capability and response speed of the material. This method provides a facile and controllable approach for surface modification of other 2D materials.
FUNCTIONAL MATERIALS LETTERS
(2022)
Article
Chemistry, Inorganic & Nuclear
Reona Iimura, Takuya Hasegawa, Shu Yin
Summary: Simple oxide materials, such as WO3, have high coloration efficiency but are limited in their ability to achieve multiple colors due to single ion redox reactions. Multiple oxide materials offer potential for various colors, but further research is needed. Tungsten-containing layered perovskites have been synthesized and evaluated for electrochromic applications, showing promising optical properties. Redox peaks and coloration efficiency can be controlled by the chemical formula of the perovskite unit.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Mengya Sun, Lijun Zhu, Wang Liu, Xinpeng Zhao, Yanfei Zhang, Hu Luo, Gai Miao, Shenggang Li, Shu Yin, Lingzhao Kong
Summary: A Pt/W/Beta catalyst has been developed for efficient hydrogenolysis of LDPE into gasoline alkanes with high yield under mild conditions. The resulting alkanes have narrow carbon distribution and abundant mono-branched isomers, and the catalyst is also applicable to LLDPE, HDPE, and PP. The C-C bond cleavage of plastics over Pt/W/Beta catalyst was found to occur through medium to long-chain hydrocarbons.
SUSTAINABLE ENERGY & FUELS
(2022)
Article
Chemistry, Physical
Uyi Sulaeman, Yusvirza Khairullah Gandasasmita, Hartiwi Diastuti, Ponco Iswanto, Isnaeni Isnaeni, Ardiansyah Taufik, Shu Yin
Summary: Surface modification of Ag3PO4 using alginate was successfully synthesized, resulting in enhanced photocatalytic activity under visible light irradiation.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Yusuke Asakura, Takuya Hasegawa, Shu Yin
Summary: In this study, NaMoO3F, a mixed anion compound, was used as a precursor for molybdenum oxynitrides. The homogeneous distribution of cobalt in the molybdenum oxynitride was achieved through this method, resulting in high oxygen reduction reaction catalytic activity. The findings propose that mixed anion compounds can serve as unique precursors for other materials to enhance their activity through improved controllability.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Taisei Hangai, Namiki Uchiyama, Takuya Hasegawa, Yusuke Asakura, Shu Yin
Summary: The bismuth vanadate photocatalyst with a star-like morphology was successfully synthesized using organic additives and exhibited excellent photocatalytic activity in the degradation of rhodamine B.
FUNCTIONAL MATERIALS LETTERS
(2022)
Review
Chemistry, Physical
Jingwen Wang, Takuya Hasegawa, Yusuke Asakura, Shu Yin
Summary: Ternary metal oxides (TMOs) with flexible band structures have great potential in photocatalysis. Introduction of N atoms into TMOs can enhance their visible light absorption capacity and improve photocatalytic performance. This review summarizes recent research on N-modified TMOs, including the influence of N doping amounts, N doping sites, and N-induced phase transformation. The optimal N concentration and the influence of N doping sites are investigated. The introduced N can tune the vacancies in TMOs, which is vital for inducing different activity and selectivity. The topochemical ammonolysis process can convert TMOs to oxynitride with enhanced photocatalytic activity.
Article
Energy & Fuels
Nonoko Suzuki, Yibei Xue, Takuya Hasegawa, Shu Yin
Summary: Element doping is an effective method to customize the thermochromic properties of vanadium dioxide (VO2) for smart windows. In this study, Mo-doped and F/Mo co-doped VO2 nanoparticles were synthesized and exhibited excellent thermochromic properties including reduced phase transition temperature (Tc = 47.4°C), enhanced luminous transmittance (Tlum = 59.7%), and high solar energy modulation (Delta Tsol = 13.7%).
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Chemistry, Physical
Bin Li, Hongqiang Chen, Jisheng Feng, Qiao Ma, Junhong Chen, Bo Ren, Shu Yin, Peng Jiang
Summary: The hydration reaction has a significant impact on the quality and performance of MgO-based products, and the problem lies in the surface hydration of MgO. By studying the adsorption and reaction of water molecules on the surface of MgO, the root cause of the problem can be understood.
Article
Materials Science, Multidisciplinary
Chinatsu Yoshizawa, Takuya Hasegawa, Ayahisa Okawa, Shu Yin
Summary: WS2-WO3 particles were successfully synthesized by solvothermal liquid-phase oxidation process under various conditions, and their gas sensing performance was evaluated at room temperature. The sample synthesized in ethanol-rich solvent at 210 degrees C exhibited excellent gas sensing performance. It is suggested that the present liquid phase oxidation process effectively controls the crystalline phase and particle morphology, which are crucial for improving gas sensing performance.
FUNCTIONAL MATERIALS LETTERS
(2023)
Review
Engineering, Chemical
Shu Yin, Takuya Hasegawa
Summary: The functionality of inorganic materials depends on their chemical composition, morphology, particle size, and crystal facet, which are influenced by the synthesis process. Precise control of the synthesis process can lead to the discovery of new functionality and improvement of materials. Solution processes allow for precise control of morphology and particle size, and are strongly related to the dissolution reprecipitation mechanism, enabling strict control of material composition and formation of highly crystalline particles. This review focuses on the role of solvents in the solution process, their effect on particle size and morphology of transition metal oxides, related functional improvements, direct formation of functional thin films, and morphology control by non-oxide materials through topotactic reactions.
KONA POWDER AND PARTICLE JOURNAL
(2023)
Article
Polymer Science
Bhaskar Garg, Tanuja Bisht, Yong-Chien Ling
Summary: In this study, a functional silicon copolymer has been constructed through catalytic hydrosilylation reaction, and its extraction performance for organic anions in aqueous-organic solution has been investigated. The copolymer exhibits high selectivity towards chloride anions.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Review
Chemistry, Multidisciplinary
Yibei Xue, Shu Yin
Summary: Smart materials, especially element-doped vanadium dioxide (VO2), have great potential due to their autonomous response behavior and modifiable properties. Element doping can tailor the performance of VO2, making it more suitable for practical applications.
Article
Chemistry, Multidisciplinary
Bingrong Guo, Bin Liu, Chaoli Wang, Yuhua Wang, Shu Yin, Weihua Han
Summary: The recombination of photocarriers is a crucial factor affecting the performance of photocatalysts. The design of heterojunction photocatalysts can effectively inhibit the recombination by enhancing photocarrier separation and transport. In this study, a Z-scheme WS2/In2S3 photocatalyst with a bi-layered sheet-like structure was synthesized. The unique architecture of this photocatalyst reduced the charge transfer distance and provided more surface area, promoting the photocatalytic reaction. The Z-scheme structure effectively separated and retained the strong redox capability of the photocarriers, resulting in remarkable photocatalytic activity for H-2 generation and tetracycline hydrochloride degradation. The Z-scheme WS2/In2S3 composite showed the highest H-2 generation rate of 592.9 mu mol g(-1) h(-1) and the best degradation efficiency of 90% within 60 min. The bi-layered Z-scheme photocatalyst also demonstrated excellent stability and recyclability.
NEW JOURNAL OF CHEMISTRY
(2022)
