Article
Chemistry, Physical
Haisheng Huang, Qi Kong, Xin Yue, Kunlei Wang, Zhishun Wei, Ying Chang
Summary: Single crystalline anatase TiO2 microspheres with {001}/{101} facets were synthesized via a facile one-pot hydrothermal method using NaF as a morphology controlling agent. The effects of NaF amount on morphology and photocatalytic activity were systematically investigated. Results showed that microspheres with improved morphology were obtained at a NaF concentration of 0.1 mol/L. Furthermore, the crystal structure and morphology were found to play significant roles in the photocatalytic activity, with TiO2 microspheres achieving a degradation efficiency of 76.4% for Tetracycline hydrochloride within 2 hours. A growth mechanism involving F ion modified Ostwald ripening and oriented attachment was proposed based on the investigation of the growth process.
Article
Chemistry, Physical
Alejandra Romero-Moran, Jose L. Sanchez-Salas, Joel Molina-Reyes
Summary: The study established the influence of the crystalline phase and agglomeration degree of TiO2 nanoparticles on photocatalytic hydroxyl radical formation and bacterial inactivation in TiO2/SiO2 composite coatings. A relationship between hydroxyl radicals' formation and charge carrier transfer mechanism between defect levels in SiO2 and TiO2 embedded nanoparticles was established through a simple spectroscopic method. This correlation complements the lack of mechanisms behind the photocatalytic activity in TiO2/SiO2 composites.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Multidisciplinary
Fusheng Li, Shuangjie Lin, Yuqing Chen, Caizhe Shi, Huaipu Yan, Chenchen Li, Chao Wu, Luqing Lin, Chunying Duan, Lei Shi
Summary: This study reports a novel photocatalytic strategy for the generation of pi-allyltitanium complexes, allowing for the rapid access to valuable homoallylic alcohols through a three-component allylation reaction with 1,3-butadiene and carbonyls. The exceptional regio- and diastereoselectivity provided by dual photoredox/Ti catalysis is comparable to that of the Cr-catalyzed Nozaki-Hiyama-Kishi allylation reaction.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Environmental
Qianqian Hu, Yifan Liu, Weian Li, Yanqi Wang, Wenhua Liao, Hanxun Zou, Jianrong Li, Xiaoying Huang
Summary: This study presents a facile and environmentally friendly method for synthesizing C, N co-doped mesoporous TiO2 nanocrystals, using IL-assisted microwave synthesis, resulting in small-sized TiO2 with well-developed mesoporous structure and abundant C, N dopants. The material exhibits high specific-surface area, excellent hydrophilicity, elevated valence-band edges, abundant defect levels, and narrowed band-gap, leading to improved visible-light absorption, reduced photogenerated electron-hole recombination, and rapid charge transfer and surface-catalyzed reactions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Patrycja Wilczewska, Anna Pancielejko, Justyna Luczak, Malwina Kroczewska, Wojciech Lisowski, Ewa M. Siedlecka
Summary: This study investigated the effect of various ionic liquids on the photocatalytic oxidation of 5-FU and phenol in the presence of TiO2 photocatalysts under artificial sunlight conditions. The presence of ILs enhanced the photoactivity of TiO2 photocatalysts for the removal of cytostatic drugs, with [TBMA][Cl] showing the highest effectiveness. The mechanism of drug degradation varied under different types of light irradiation, highlighting the importance of ILs in improving photocatalytic activity and facilitating hole-electron separation.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Changhao Bian, Yanyan Wang, Yuyan Yi, Shengyu Shao, Pengfei Sun, Yingping Xiao, Wen Wang, Xiaoping Dong
Summary: In this study, S-doped graphitic carbon nitride (SCNHM) with a hollow microsphere structure and ultrathin nanosheets was synthesized through supramolecular self-assembly and S-doping. The SCNHM showed improved photocatalytic activity for degrading tetracycline hydrochloride and also exhibited excellent photocatalytic durability and bactericidal activity against Staphylococcus aureus and Escherichia coli.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Wenlong Sheng, Fengwei Huang, Xianjun Lang
Summary: In this study, a NH2-MIL-125(Ti)/amorphous TiO2 composite photocatalyst was synthesized by integrating amorphous TiO2 microspheres with a Ti-based MOF (NH2-MIL-125(Ti)) during hydrothermal process. The NH2-MIL-125(Ti)/amorphous TiO2 photocatalyst exhibited more than five times higher catalytic activity than pristine NH2-MIL-125(Ti) for the selective oxidation of benzylamine. Optical and electrochemical characterizations revealed that visible light absorption in NH2-MIL-125(Ti)/amorphous TiO2 originated from NH2-MIL-125(Ti), while faster electron transfer to molecular oxygen was attributed to amorphous TiO2. This study highlights the importance of integrating MOFs with metal oxides in enhancing visible light photocatalysis.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Engineering, Environmental
Xueying Cheng, Renquan Guan, Yunning Chen, Yudan Qian, Qingkun Shang, Yingnan Sun
Summary: In this study, the adsorption and photocatalytic degradation of oxytetracycline (OTC) were investigated using different metal-doped TiO2 nanocatalysts (M-TiO2, M = Fe, Co, Ni, Cr). The effects of different metal dopants on the adsorption and degradation abilities of TiO2 were studied. The photocatalytic performance of Fe-TiO2 was found to be excellent due to the synergy between the separation ability of photogenerated carriers and the adsorption ability of pollutants.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Shweta Manchwari, Jaya Khatter, R. P. Chauhan
Summary: This study focuses on the synthesis of TiO2/CdS nanocomposites with different concentrations of precursors and their characterization using various techniques. The results show that TiO2/CdS nanocomposites exhibit excellent photocatalytic performance in the visible range compared to pure TiO2, and they have better degradation efficiency for methylene blue dye compared to rhodamine B dye. The optimum photocatalytic performance is achieved with a 1:1 M ratio of cadmium and sulphur precursors.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Xuhui Feng, Fuping Pan, Peng Zhang, Xiao Wang, Hong-Cai Zhou, Yongheng Huang, Ying Li
Summary: By doping Mg2+, TiO2 photocatalysts exhibited enhanced performance with increased surface Ti3+ generation and transient photocurrent density. Among them, 1MA catalyst showed significantly improved CO production rate compared to commercially available TiO2 nanopowder P25 in CO2 reduction.
Article
Chemistry, Physical
Li-Yuan Zhang, Yan-Lin Han, Jin-Ju Yang, Sheng-Lian Deng, Bi-Yu Wang
Summary: Carbon quantum dots (CQDs) were prepared using citric acid as a carbon source, and then compounded with layered mesoporous titanium dioxide (LM-TiO2) to form composites. The addition of CQDs greatly enhanced the light absorption intensity of LM-TiO2 in the ultraviolet range and improved the degradation rate of organic pollutants compared to simple TiO2 and LM-TiO2.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Adilah Sirivallop, Salvador Escobedo, Thanita Areerob, Hugo de Lasa, Siriluk Chiarakorn
Summary: This research successfully converts methanol into CO2 using N/Ag/TiO2 photocatalyst under visible light, showing high quantum yields and methanol conversion rates. The results achieved in this study are among the highest reported in the technical literature.
Article
Chemistry, Multidisciplinary
Xiaoling Cui, Huarong Liu, Xingyuan Zhang, Hewen Liu
Summary: Doping and forming highly porous structures are effective ways to enhance the photocatalytic performances of TiO2 particles. The hierarchical porous C/S/N-TiO2 microspheres prepared using a new method show high visible-light catalytic efficiency and excellent cycling stability.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Physical
Congcong Wei, Wei Zhang, Xinpeng Wang, Aihong Li, Jianping Guo, Bo Liu
Summary: The g-C3N4/TiO2 photocatalysts with mesoporous structure and intimate interfacial connection were synthesized through facile pyrolysis, exhibiting significantly improved photocatalytic activity. The enhancement was primarily attributed to the synergistic effect between large specific surface area, decreased energy band gap, and intimate interface contact.
Article
Biochemistry & Molecular Biology
Mairis Iesalnieks, Raivis Eglitis, Talis Juhna, Krisjanis Smits, Andris Sutka
Summary: This study successfully prepared a transparent titanium dioxide coating on plastic substrates and demonstrated its high performance in photocatalytic degradation of organic pollutants. The coating can be applied to polymer substrates and exhibits good stability.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Psychology, Educational
Jih-Yu Mao, Jincen Xiao, Xin Liu, Tao Qing, Hongling Xu
Summary: This research investigates the impact of coworker ideation levels on employee creativity, as well as the underlying mechanism and boundary conditions of this influence. The study finds that high coworker ideation levels enhance employees' creative self-efficacy and stimulate their ideation. Furthermore, this positive influence is strengthened by the quality of exchange between the focal employee and their coworkers.
CREATIVITY RESEARCH JOURNAL
(2023)
Article
Computer Science, Interdisciplinary Applications
Hao Peng, Ziyi Xie, Dandan Zhao, Ming Zhong, Jianmin Han, Wei Wang
Summary: This paper studies the robustness of interdependent hypergraph networks under different attack strategies and proposes a series of target attack strategies. The research results show that these attack strategies can significantly reduce the network's robustness and lead to network collapse.
INTERNATIONAL JOURNAL OF MODERN PHYSICS C
(2023)
Article
Chemistry, Multidisciplinary
Jianguo Sun, Bin Li, Long Hu, Junjun Guo, Xufeng Ling, Xuliang Zhang, Chi Zhang, Xianxin Wu, Hehe Huang, Chenxu Han, Xinfeng Liu, Youyong Li, Shujuan Huang, Tom Wu, Jianyu Yuan, Wanli Ma
Summary: Solution processable semiconductors like organics and emerging lead halide perovskites (LHPs) are ideal candidates for photovoltaics. This study investigates a novel device architecture involving block copolymer/perovskite hybrid bulk heterointerfaces, which enhances light absorption, energy level cascade, and provides a thin hydrophobic layer to improve carrier generation and prevent moisture invasion. The resulting hybrid solar cell exhibits high efficiency and stability, and the approach can be extended to other LHPs.
ADVANCED MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Fei Gao, Jianjun Han, Li Jia, Jun He, Yun Wang, Mi Chen, Xiaojun Liu, Xia He
Summary: miR-30c enhances NK cell cytotoxicity to lung cancer cells by decreasing GALNT7 and inactivating the PI3K/AKT pathway, suggesting that regulating miR-30c expression may be a promising approach for enhancing NK cell-based antitumor therapies.
Article
Engineering, Electrical & Electronic
Jiahui Wang, Yabin Gao, Yue Zhao, Zhiguang Feng, Jianxing Liu
Summary: A dynamic sliding-mode variable-structure control (VSC) combined with fuzzy neural networks (FNNs) is proposed for voltage tracking control in DC-DC boost converters. Two types of FNNs are used to approximate uncertainties, with the control system analyzed to be boundedly stable under this method. Validation and superiority of the proposed dynamic VSC method are demonstrated through comparative simulations.
INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS
(2023)
Article
Materials Science, Multidisciplinary
F. Y. Han, Q. Shi, C. Zheng, M. Z. Li, H. Feng, C. J. Zhang, S. Z. Zhang, X. Y. Fan, X. F. Niu, J. C. Han, T. Wang
Summary: In this study, a Mg-Zn-Al-Ca alloy was processed using forward extrusion and post ECAP method. The evolution of microstructure and mechanical properties of the alloy was systematically investigated. The results showed that the decreased-temperature ECAP processing led to significant grain refinement and the production of substructures in the alloy. The alloy achieved a minimum average grain size of 1.04 μm after specific passes of ECAP at certain temperatures. Furthermore, the texture type of the alloy changed after ECAP deformation. The Mg-5Zn-2Al-1Ca alloy exhibited excellent mechanical properties after the last passes of ECAP, with strength increase contributed by grain boundary strengthening, texture strengthening, and Orowan strengthening effect.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Automation & Control Systems
Ang Zhang, Zhe Min, Zhengyan Zhang, Xing Yang, Max Q-H Meng
Summary: This article presents a novel, robust, and accurate 3D rigid point set registration method that incorporates high-dimensional point set alignment and anisotropic positional noise into the Bayesian coherent point drift framework. The proposed method utilizes normal vectors to enhance robustness and accuracy, and guarantees theoretical convergence by incorporating registration into the framework.
IEEE TRANSACTIONS ON AUTOMATION SCIENCE AND ENGINEERING
(2023)
Article
Automation & Control Systems
Xiangyu Wang, Ningbo Yu, Jianda Han, Yongchun Fang
Summary: This article studies the control issue of the TSAM twist in robotic flexible endoscopies and proposes an effective robust control scheme. The model is rigorously developed and a nonlinear robust controller is designed, with stability proven theoretically. Hardware experiments validate the feasibility, effectiveness, and robustness of the proposed model and control method.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Automation & Control Systems
Xiao Liang, Hai Yu, Zhuang Zhang, Huawang Liu, Yongchun Fang, Jianda Han
Summary: Aerial delivery is becoming a reality with the advancement of microelectronics and communication technology. This article presents a flexible connection and nonlinear control approach for independent payload hoisting and lowering in cable-suspended transportation systems. The proposed method achieves simultaneous quadrotor positioning, payload swing elimination, and hoisting/lowering. Hardware experiments on a self-built aerial transportation platform validate the effectiveness of the approach.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Yu Wang, Jianqiang Han, Yingjie Xia, Bo Zhang
Summary: This study investigates the damage and fracture evolution of rock containing fissures and hollow hole under freeze-thaw and cyclic loads. The results show that the volumetric deformation of rock decreases with increasing freeze-thaw cycles, and both elastic strain energy and dissipated strain energy decrease as well. A coupling damage evolution model considering freezing-thaw and mechanical damage is proposed.
INTERNATIONAL JOURNAL OF DAMAGE MECHANICS
(2023)
Article
Chemistry, Physical
Guangxu Zhao, Jing Zhang, Shuzhi Zhang, Gang Wang, Jianchao Han, Changjiang Zhang
Summary: In this study, a novel CoCuFeNiTiV0.6 high entropy alloy interlayer was used for vacuum diffusion bonding of TiAl alloy and TC4 titanium alloy. The effects of bonding temperature and pressure on the microstructure, element diffusion behavior, and mechanical properties of the joint were investigated. Different diffusion layers were formed at the interface, and their thickness increased with the increase of bonding temperature and pressure. The mechanical properties of the joints were improved compared to traditional bonding methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Environmental Sciences
Jiangtao Yang, Changsheng Guo, Ying Luo, Jingpu Fan, Weimin Wang, Xingxing Yin, Jian Xu
Summary: This study investigated the effect of the insecticide thiamethoxam (THM) on the behavior of adult zebrafish. The results showed that after exposure to different concentrations of THM, the locomotor activity, aggregation, and social activity of the fish were enhanced, but memory of the food zone was disrupted and abnormal swimming behavior was observed. THM exposure also caused pathological changes in the brain tissue, affected the concentrations of acetylcholinesterase and cortisol, and impacted the condition factor and organ coefficients of the zebrafish. This highlights the importance of behavioral studies in ecological risk assessment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Materials Science, Multidisciplinary
Hou -Bo Zhou, Zi-Bing Yu, Feng-xia Hu, Jian-Tao Wang, Fei-Ran Shen, Jia-Zheng Hao, Lun-Hua He, Qing-Zhen Huang, Yi-Hong Gao, Bing-Jie Wang, Zhuo Yin, Zheng-Ying Tian, Jing Wang, Yun-Zhong Chen, Ji-Rong Sun, Tong-Yun Zhao, Bao-Gen Shen
Summary: This study reports the emergence of the Invar effect with excellent mechanical properties by modulating the electronic structure in LaFe11.6-xCoxSi1.4. The site occupancy of Co atoms was determined using neutron and X-ray diffraction, and ab initio calculations were performed to study the electronic band structure. The results show that the incorporation of Co atoms inhibits spontaneous magnetostriction and enhances the Invar effect in the ferromagnetic region of LaFe10.6Co1.0Si1.4.
Article
Chemistry, Multidisciplinary
Guoliang Zhang, Yaoyao Li, Ruifeng Zhu, Zhe Huang, Dan Zhang, Zhu Long, Yuning Li
Summary: This study addresses the challenges in developing carbon fiber paper-based supercapacitors with high energy density by designing a multi-layered electrode with a specific structure. The use of Cu(OH)(2) nanorods on the surface of a sponge-like carbon fiber paper enriched with oxygen functional groups results in enhanced capacitance and excellent cyclic stability. The assembled solid-state supercapacitor demonstrates superior performance, surpassing previously reported Cu(OH)(2) supercapacitors.
Article
Chemistry, Physical
Shouzhen Cao, Zongze Li, Jiafei Pu, Jianchao Han, Qi Dong, Mingdong Zhu
Summary: TiAl alloys are high-temperature structural materials. The Ti-46Al-8Nb-2.5V alloy exhibited phase transformations and texture evolution during hot compression and subsequent annealing at 900 degrees C. The volume fraction of the alpha(2) phase decreased, and the gamma -> alpha(2) phase transformation occurred during annealing.
