Article
Chemistry, Physical
Jinwen Shi, Feng Chen, Lulu Hou, Gaosheng Li, Yueqi Li, Xiangjiu Guan, Haipei Liu, Liejin Guo
Summary: This study developed a solvothermal method to synthesize EY-sensitized UiO-66-NH2, enhancing the connection between EY and UiO-66-NH2, improving the transfer rate of photogenerated electrons, and significantly increasing the H-2 evolution rate and apparent quantum efficiency.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Organic
Haiwang Liu, Fei Xue, Mu Wang, Xinxin Tang, Jie Wu
Summary: Styrene derivatives were hydroacylated with exclusive anti-Markovnikov selectivity using neutral eosin Y as a direct hydrogen-atom-transfer catalyst under visible-light irradiation, giving moderate to high yields of the corresponding products. The acyl radical intermediate was generated through a direct HAT process induced by photoexcited eosin Y, followed by subsequent addition to styrenes and a reverse HAT process to generate the ketone products.
Article
Nanoscience & Nanotechnology
Junggou Kwon, Kyoungjun Choi, Murielle Schreck, Tian Liu, Elena Tervoort, Markus Niederberger
Summary: The study presents a facile method for nitrogen doping monolithic titanium dioxide nanoparticle-based aerogels to activate them for visible light, demonstrating significant enhancement in visible light-driven photocatalytic H-2 production by balancing dopant concentration and defects to improve optical absorption and charge separation efficiency.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Chemistry, Physical
Marcin Janczarek, Ewa Kowalska
Summary: This review explored the preparation, characterization, mechanisms, and activity testing of defective titania, suggesting that self-doped TiO2 could be a more cost-effective photocatalytic material. However, there are still uncertain research findings and unanswered questions that require further investigation and verification.
Article
Chemistry, Multidisciplinary
Yue Luo, Guorui Chang, Li Huang, Leilei Zhang, Jiaqi Cui, Xiaping Zhu, Shuxia Xu
Summary: The covalent immobilization of Eosin Y on graphene oxide resulted in a GO/EY composite with enhanced visible-light-driven photocatalytic activity for degrading CEC antibiotics. The modification of GO by EY as a sensitizer improved visible light absorption, leading to increased degradation efficiency of CEC.
Article
Engineering, Environmental
Harshavardhan Mohan, Mohankandhasamy Ramasamy, Vaikundamoorthy Ramalingam, Karthi Natesan, Maruthamani Duraisamy, Janaki Venkatachalam, Taeho Shin, Kamala-Kannan Seralathan
Summary: A simulated visible light-mediated iron oxide-titania nanocomposite was utilized for the photocatalytic degradation of the antibiotic norfloxacin. Structural characterization was conducted using various techniques, revealing that the nanocomposites with a 1:4 ratio of iron oxide doped titania exhibited the highest photocatalytic activity under visible light irradiation. The study confirmed complete degradation of NFN without residual intermediates and demonstrated efficient reusability of the photocatalyst for multiple cycles.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Yoonsang Park, Hoang Tran Bui, Yurim Sohn, Cheolwoo Park, Bupmo Kim, Taehyung Lee, Daegun Kim, Dajin Lee, Kilwon Cho, Hyo Won Kim, Woosung Kwon, Wooyul Kim
Summary: In this study, nanocomposites composed of graphite-derived carbon dots (GCDs) and TiO2 were shown to have ligand-to-metal charge transfer (LMCT) activity across the entire visible-light spectrum. The effect of GCDs on the photocatalytic activity of TiO2 was investigated through the production of hydrogen peroxide and the degradation of pollutants. The research demonstrates the formation of an LMCT band in TiO2/GCD nanocomposites and provides a novel method for expanding the light-absorption spectrum of photocatalysts.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
Kanokwan Phumivanichakit, Sumetha Suwanboon, Pongsaton Amornpitoksuk
Summary: AgIO3 is a wide bandgap photocatalyst that can only be activated by UV irradiation. Under visible light irradiation, AgIO3 exhibits photocatalytic activity through a dye sensitization mechanism, degrading dyes RO and EY. During the degradation process of RO or EY, metallic Ag is generated on the surface of AgIO3, and this Ag/AgIO3 product can degrade other dyes such as MB and CV under visible light irradiation.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Mai Mersal, Gehad G. Mohamed, Abdallah F. Zedan
Summary: Alcohol oxidation is an important chemical reaction of interest in energy and industrial sectors. In this study, n-TiO2@WO3 heterojunction photocatalysts were prepared and their catalytic activity towards methanol oxidation under visible-light was investigated. The hybrid photocatalyst showed enhanced activity compared to pure counterparts.
Article
Chemistry, Physical
Ping Wang, Qingqing Yang, Chen Xu, Bo Wang, Huan Wang, Jidong Zhang, Yongdong Jin
Summary: This study explores the use of magic-sized CdSe nanoclusters as light absorbers for hydrogen photogeneration. Compared to conventional semiconductor quantum dots, these nanoclusters exhibit superior catalytic performance, attributed to their longer exciton lifetime and fast electron transfer to cocatalyst. Additionally, the issue of instability during the reaction can be significantly inhibited by anchoring Zn2+ onto the nanocluster surface.
Article
Nanoscience & Nanotechnology
Yu Zhao, Ran Lu, Xin Wang, Xiaochen Huai, Caiyun Wang, Yuji Wang, Su Chen
Summary: The study successfully fabricated the H-TNTs/f-Ti composite with enhanced visible light-induced photoelectric response and more hydroxyl functional groups, which can improve the biocompatibility of dental implants and inhibit bacterial growth effectively.
Article
Chemistry, Organic
Tanumoy Mandal, Samrat Mallick, Nidhi Kumari, Suman De Sarkar
Summary: An efficient approach utilizing the dual catalytic activity of an organo-photocatalyst for the synthesis of phenanthrene scaffolds is documented. The controlled cascade transformation involves in situ diazotization, olefin isomerization, and photoreduction for the generation of arene radicals. The study explores the underexplored organocatalyst acridine orange base and investigates the photophysical interactions and reaction kinetics.
Article
Chemistry, Applied
Shubin Yang, Bunsho Ohtani
Summary: In this study, a Rh-TiO2 composite material was prepared by oxidizing Rh(III) species to Rh(IV) in an aqueous solution, which showed enhanced photocatalytic activity. XPS analysis confirmed the presence of Rh(IV) species in the composite, and the effect of Rh/Ti molar ratio on the photocatalytic activity was studied, demonstrating that Rh doping improved the visible-light absorption and overall performance of the composite.
Article
Chemistry, Multidisciplinary
Ayesha Khan, Michael Goepel, Adam Kubas, Dariusz Lomot, Wojciech Lisowski, Dmytro Lisovytskiy, Ariadna Nowicka, Juan Carlos Colmenares, Roger Glaeser
Summary: Selective oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-diformylfuran (DFF) was achieved by visible light-driven photocatalysis over titania. The formation of a visible light-absorbing complex of HMF on the titania surface enabled efficient catalysis of the oxidation of HMF to DFF under visible light.
Article
Chemistry, Physical
Manjakuppam Malika, Shriram S. Sonawane
Summary: The calcination temperature affects the crystallinity and morphology of Fe2O3- TiO2 nanosheets, and using hybrid nanofluids can improve the photocatalytic degradation.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Green & Sustainable Science & Technology
Meixin Guan, Shiyu Zhao, Jinwen Shi, Hui Jin, Wenwen Wei
Summary: The use of supercritical fluids to treat plastic waste provides a new and efficient approach for green treatment. This study conducted gasification experiments on PET in supercritical H2O/CO2 and analyzed the effects of temperature, residence time, initial CO2 volume, and seawater on the gasification reaction. The results showed that increasing temperature and CO2 volume, as well as the presence of metal salts in seawater, improve the gasification efficiency. The work also identified the temperature's significant influence on the interface of PET plastics and proposed optimal conditions for carbon reduction.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Bingru Lu, Bin Bai, Ruiheng Zhang, Jingnan Ma, Liuhao Mao, Jinwen Shi, Hui Jin
Summary: This study conducted experiments on the behavior of polyoxymethylene (POM) plastics in supercritical water gasification (SCWG). The effects of temperature, residence time, feedstocks concentration, and pressure on the gasification reaction were investigated, and the optimum conditions for POM plastics gasification were determined. It was found that increasing temperature significantly improved the gasification efficiency, while increasing concentration reduced the gasification rate. Under the optimal conditions, the carbon gasification efficiency reached 97.15%.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Physical
Linyuan Wen, Mingtao Li, Jinwen Shi, Yingzhe Liu, Tao Yu, Yazhou Zhang, Maochang Liu, Zhaohui Zhou
Summary: The single-atom loading of non-precious transition metals (M = Ti, V, Mn, and Fe) on the (100) surface of SrTiO3 (STO) was theoretically studied to assess the hydrogen evolution reaction (HER) with the Gibbs free energy for hydrogen adsorption (Delta GH*). V1-STO showed a competitive Delta GH* value of -0.08 eV, comparable to metallic Pt (-0.09 eV). The d band center explained the primary screening of single-atom non-precious transition metals on STO. Furthermore, strain engineering was utilized to enhance the HER performance of V1-STO. Tensile strain increased Delta GH*, while compressed strain decreased Delta GH*. A new descriptor of the d orbital splitting (epsilon d-gap) was proposed to elucidate the optimization of HER performance due to surface strains. This work introduces a combined strategy to evaluate HER performance and offers guidance for the sequential design of HER catalysts.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Energy & Fuels
Mingtao Li, Zihao Wang, Chunxiao Liu, Xunbiao Meng, Yan Zhang, Jinwen Shi, Xinfeng Sun, Gaochao Li, Lixiao Gao, Duwei Liu
Summary: This study proposes a correction algorithm based on analyzing steam condensation locations to solve the problem of large errors in calculating the heat transfer of air-cooling condenser (ACC) in Fluent. By building an accurate geometric model of the ACC and simplifying the heat-sinking tube bundle using radiator boundary conditions, Fluent software was used to calculate the heat transfer of the ACC under winter operating conditions. The calculated results were then corrected using the proposed algorithm, reducing the errors from 4.20% to 36.98% to 0.01% to 1.79%. The correction algorithm improves the accuracy by considering the steam condensation positions and can be applied to indirect air-cooling generator sets for anti-freezing guidance.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Chemistry, Multidisciplinary
Li Tian, Xiangjiu Guan, Yuchen Dong, Shichao Zong, Anna Dai, Ziying Zhang, Liejin Guo
Summary: Aluminum-doped SrTiO3 nanoparticles were synthesized with controllable aluminum doping by a mild hydrothermal method, and the photocatalytic overall water splitting was studied. The results showed an excellent photocatalytic performance with a H-2 production rate of about 4.1 mmol h(-1) g(-1) and an O-2 production rate of about 1.9 mmol h(-1) g(-1). This improvement in performance was attributed to the tuned surface band bending of SrTiO3 achieved by regulation of the Fermi level, which enhanced charge separation and accelerated the redox reaction.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Hanbing Li, Hongyan Zhang, Wenquan Liu, Jie Huang, Kejian Lu, Jinwen Shi, Hui Jin, Wenshuai Chen, Maochang Liu
Summary: In recent years, solar-powered photocatalytic water splitting for hydrogen production has gained significant attention as a renewable and environmentally friendly method to generate clean energy. This paper explores the process of photocatalytic hydrogen evolution using Pt-loaded commercial titanium dioxide as the photocatalyst and presents a simple experimental demonstration of integrating photocatalytic hydrogen production with a hydrogen fuel cell system. The principles, reaction mechanisms, and experimental design linking photocatalysis with fuel cells are systematically discussed.
JOURNAL OF CHEMICAL EDUCATION
(2023)
Article
Mechanics
Kun Jiang, Qiuyang Zhao, Haocheng Yu, Jinwen Shi, Hui Jin
Summary: In this study, particle resolve-direct numerical simulation is used to investigate the flow of high-temperature supercritical CO2 over a low-temperature stationary sphere. It is found that the presence of Stefan flow reduces flow resistance but inhibits heat transfer performance compared to cases without Stefan flow.
Article
Chemistry, Physical
Cheng Cheng, Liuhao Mao, Xing Kang, Chung-Li Dong, Yu-Cheng Huang, Shaohua Shen, Jinwen Shi, Liejin Guo
Summary: Polymeric carbon nitride can achieve higher photocatalytic activity by improving crystallinity and creating novel structure. The high-cyano groups-content and amorphous-crystalline carbon nitride isotype heterojunction (BCN-NaK) was obtained through a post treatment strategy in eutectic salt. The promoted charge transfer in BCN-NaK contributes to its ultrahigh photocatalytic H2-production activity and good photocatalytic CO2-to-CO conversion rate under visible light.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Wengao Zeng, Yuchen Dong, Xiaoyuan Ye, Xiangjiu Guan, Tuo Zhang, Liejin Guo
Summary: The development of a universal strategy for designing photocatalysts with precise structure regulation is necessary to achieve efficient hydrogen production from water splitting. This study demonstrates the universality of a supramolecular precursor-based route for synthesizing ultrathin porous carbon nitride photocatalysts by incorporating various amino acids, enabling simultaneous production of H2 and H2O2 from pure water splitting. The improved photocatalytic performance is attributed to the molecular structure regulation of carbon nitride photocatalysts with aldehyde functional groups, which promotes adsorption/desorption processes and charge-carrier dynamics.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Thermodynamics
Rui Yang, Xiaoke Li, Fei Yin, Jinwen Shi, Dengwei Jing
Summary: This study proposed low-dimensional plasmonic TiN/MWCNTs nanofluids for photothermal conversion, and systematically investigated their properties. The results showed that the heat transfer and optical properties of the nanofluids were significantly enhanced, leading to improved photothermal conversion efficiency.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Green & Sustainable Science & Technology
Yanbing Liu, Jinwen Shi, Hui Jin, Liejin Guo
Summary: The overuse of plastic products has led to serious ecological hazards, necessitating the development of effective technologies to address the shortcomings of current methods. This review summarizes the mechanisms and representative studies of physical and biological methods for plastic disposal, highlighting the advantages and disadvantages of each approach. Physical treatment involves extrusion or deformation of plastics for subsequent use in various applications, while biodegradation utilizes microorganisms to convert plastics into CO2 and H2O. However, both methods have limitations, leading to a growing interest in combining different approaches to improve the efficiency of plastic degradation.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Biochemistry & Molecular Biology
Linyuan Wen, Shiqun Shan, Weipeng Lai, Jinwen Shi, Mingtao Li, Yingzhe Liu, Maochang Liu, Zhaohui Zhou
Summary: Through the use of maximum substructure searches, researchers in the ZINC20 database were able to obtain common substructures from high-strain-energy and combustion heat value molecules, providing insights into the design of high-energy-density hydrocarbon fuels. The results guided the design of 20 fuel molecules, with ZD-6 showing promising fuel properties and comparable synthetic complexity to syntin. This work not only presents ZD-6 as a potential high-energy-density hydrocarbon fuel, but also highlights the importance of learning design strategies from data in advancing the development of novel fuels.
Article
Materials Science, Multidisciplinary
Peiqi Du, Jinwen Shi, Jing Zhan, Lei Fu, Fei Liu
Summary: This study focuses on the influence of platinum cluster size on catalytic ability. The findings show that smaller-sized platinum clusters have higher activity, producing a higher proportion of H2O2. In contrast, larger-sized platinum clusters have a lower proportion of the 4-electron pathway in oxygen reduction reaction.
Article
Automation & Control Systems
Zhechen Guo, Jun Xu, Xingzao Wang, Jinwen Shi, Enhu Li, Xuesong Mei
Summary: This work proposes a model predictive control (MPC) based on the reduced-order model and heat generation previewer to achieve fine control of multilayer temperature uniformity and energy consumption in a battery thermal management system (BTMS). The effectiveness of the control strategy is verified using a direct contact liquid cooling battery pack. The results demonstrate that the proposed method allows precise control of the target temperature and reduces the temperature difference among cells.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2023)
Article
Green & Sustainable Science & Technology
Yanbing Liu, Jinwen Shi, Liuhao Mao, Bingru Lu, Xing Kang, Hui Jin
Summary: Plastic pollution is a serious environmental problem, and the inert nature of plastic makes it difficult to degrade. In this study, supercritical CO2 (Sc-CO2) assisted by NaOH/HCl solution was used to degrade polystyrene (PS) plastic under mild conditions. The factors affecting PS degradation efficiency were found to be reaction temperature, reaction time, and NaOH/HCl concentration. The use of Sc-CO2 created a homogeneous environment, promoting the degradation of PS. Furthermore, the addition of NaOH/HCl solution improved the solubility of PS in Sc-CO2 and reduced the activation energy of the reaction, leading to enhanced degradation efficiency. Overall, degrading PS in Sc-CO2 with the assistance of a base/acid solution is feasible and provides a reference for the future disposal of waste plastics.
WASTE DISPOSAL & SUSTAINABLE ENERGY
(2023)
