Article
Chemistry, Physical
Feng-Zao Chen, Yu-Jun Li, Mi Zhou, Xin-Xin Gong, Yuan Gao, Ge Cheng, Shi-Bin Ren, De -Man Han
Summary: Multifunctional heterojunctions, based on function-and structure-oriented material design and accurate synthesis, have emerged as an important platform in materials chemistry with great application prospects for solving practically complex science and engineering problems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Chemical
Rui Ji, Jiadi Liu, Tingyu Zhang, Yang Peng, Youyong Li, Dongyun Chen, Qingfeng Xu, Jianmei Lu
Summary: A ternary nanoflower, In2S3@Au@P3HT, doped with gold nanoparticles and covered with a nanolayer P3HT, was prepared for efficient photocatalytic degradation of the organic pollutant phenol. The synergistic benefits of the gold nanoparticles and P3HT layer contribute to the high performance of the ternary Z-type heterojunction photocatalyst, showing rapid degradation of phenol in water remediation applications. This new strategy for preparing the highly-efficient photocatalyst provides potential for further environmental remediation solutions.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Yichao Wang, Zipeng Xing, Huanan Zhao, Sijia Song, Meijie Liu, Zhenzi Li, Wei Zhou
Summary: Oxygen-doped MoS2@In2S3/Bi2S3 core-shell dual Z-scheme tandem heterojunctions exhibit excellent photothermal effect and photocatalytic performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Jing Luo, Zhaoxia Shi, Jiefeng Meng, Feng Li, Taohai Li, Meng Zhang, Rossella Greco, Wei Cao
Summary: A novel ternary Bi2O3/Bi/ZnIn2S4 system was designed for efficient solar-driven photocatalytic removal of organic and ionic pollutants and hydrogen evolution. The system exhibited high degradation efficiency for 2,4-dinitrophenol, tetracycline, and Cr6+ under visible light, and achieved a hydrogen production rate of 482.5 lmol•g^-1•h^-1. The Z-scheme mechanism, facilitated by lowered bandgap, internal electric fields, and surface plasmonic resonance, contributed to the enhanced catalytic performance and inhibited photocorrosion of the sulfide.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Engineering, Environmental
Jinhai Li, Chenyu Wang, Jianhai Zhou, Zhang Ping, Guopei Huang, Yuanhui Wu, Shuxing Luo, Dongmei Bao, Zhu Wen, Pili Lu
Summary: In this study, a novel Bi2O2(OH)NO3-BiVO4 heterogeneous composite was successfully constructed and synthesized by a mild and convenient hydrothermal method. The as-synthesized composite exhibited good surface properties and catalytic stability, and significantly enhanced the photocatalytic degradation capacity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Manjiri A. Mahadadalkar, Ganesh Dhakal, Sumanta Sahoo, Deivasigamani Ranjith Kumar, Marjorie Lara Baynosa, Van Quang Nguyen, Mostafa Saad Sayed, Abdelrahman M. Rabie, Woo Kyoung Kim, Jae-Jin Shim
Summary: In this study, a TiO2/In2S3 heterojunction composite photocatalyst was successfully prepared through a simple low-temperature hydrothermal method. The composite showed excellent photocatalytic degradation performance for Rhodamine B under solar light irradiation, with a degradation rate of 99.9% in just 20 minutes. The environmentally friendly synthesis process and high stability make the TiO2/In2S3 composite a promising candidate for cost-effective wastewater treatment.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Physical
Pengfei Zhu, Dan Luo, Ming Duan, Leiyan Feng, Shasha Zhang, Mei Liu
Summary: A novel magnetic CoFe2O4/g-C3N4/Bi4Ti3O12 composite photocatalyst with high activity and recyclability has been prepared for the degradation of malachite green dye in wastewater. The enhanced activity is attributed to the formation of heterojunction, promoting the separation efficiency of photogenerated electron-hole pairs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Chemical
Yongtao Xue, Zengyue Chen, Zhansheng Wu, Fei Tian, Bing Yu
Summary: A cost-effective photocatalyst, Bi/BiVO4-CdS, with efficient electron-hole separation efficiency and excellent light absorption capacity, has been successfully developed for the degradation of tetracycline hydrochloride (TCH) from wastewater. This photocatalyst exhibits superior performance in TCH degradation, with a degradation ratio of 85.5% within 30 minutes and enhanced stability over multiple cycles, attributed to the generation of h(+), center dot O-2(-), and center dot OH reactive species. Intermediates identified by HPLC-MS suggest proposed pathways for the photocatalytic degradation of TCH using Bi/BiVO4-CdS.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Jinfen Niu, Kai Wang, Lan Yang, Jiahui Shi, Yue Zhang, Fan Yang, Xiaojiao Yu, Binghua Yao
Summary: This study demonstrated the enhanced photocatalytic efficiency of g-C3N4@Bi/BiOBr nanocomposites in degradation of antibiotic contaminants, possibly attributed to the Z-scheme pathway and the SPR effect of Bi-0.
Article
Environmental Sciences
Yanqing Cong, Jiaxin Yi, Shengna Liang, Feng Zhang, Yi Zhang, Shi-Wen Lv
Summary: In this study, a novel 500NiCo(2)O(4)@CdS-5%Ag photocatalytic composite was successfully fabricated, which showed enhanced visible light absorption and restrained recombination of photogenerated charge carriers. The deposition of Ag further promoted the transfer of charge carriers and accelerated the reaction rate. The composite displayed excellent stability and high removal efficiency in the photocatalytic degradation of organic pollutants, providing inspiration for designing novel photocatalytic systems.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Physical
Gang Yan, Yefan Gu, Peiyu Qin, Wen Deng, Meina Lin, Chunna Huang, Yitong Ning, Hongliang Hu, Liguang Xiao
Summary: The photocatalytic degradation of formaldehyde is an ideal solution for indoor air pollution. In this study, a ternary heterojunction photocatalyst K-C3N4/Ag/Ag3PMo12O40 was synthesized and it exhibited significantly improved photocatalytic activity compared to other catalysts. The structure and mechanism of the photocatalyst were investigated, providing insights for the design of new and efficient photocatalysts for environmental applications.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Houfeng Zhang, Bojing Sun, Junjie Wang, Qian Zhu, Dongfang Hou, Chen Li, Xiu-qing Qiao, Dong-sheng Li
Summary: Optimizing the separation and transport of photogenerated carriers in heterojunction composites and utilizing the active sites of each material are crucial for enhancing photocatalytic activity. In this study, a Z-scheme heterojunction catalyst, CLS@LOH@CS, is successfully synthesized using a simple solvothermal method, exhibiting broad-spectrum absorption and excellent photocatalytic performance. The incorporation of La(OH)3 nanosheets increases the specific surface area and forms a Z-scheme heterojunction with CdLa2S4 (CLS) upon irradiation. Additionally, the in-situ sulfurization method produces photothermal Co3S4, which enhances the mobility of photogenerated carriers and serves as a cocatalyst for hydrogen production. The formation of Co3S4 also introduces sulfur vacancy defects in CLS, improving the separation efficiency of photogenerated electrons and holes and increasing the catalytic active sites. As a result, the maximum hydrogen production rate of CLS@LOH@CS heterojunctions reaches 26.4 mmol g-1h-1, 293 times higher than pristine CLS (0.09 mmol g-1h-1). This work opens up new possibilities for synthesizing high-efficiency heterojunction photocatalysts by modulating the separation and transport modes of photogenerated carriers.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou
Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Engineering, Chemical
Xueyan Zhang, Xinyue Wang, Jiaqi Meng, Yunqing Liu, Miao Ren, Yihang Guo, Yuxin Yang
Summary: Z-scheme g-C3N4/WO3 heterojunction photocatalysts with controlled morphology of WO3 are easily fabricated and applied in photocatalytic degradation of phenolic pollutants under simulated sunlight. The enhanced photocatalytic activity of g-C3N4/WO3 is attributed to the Z-scheme band alignment, impact of WO3 ratio and morphology, and intimate interfacial contact between WO3 and g-C3N4. Active species generated during the process can oxidize target pollutants to harmless inorganic compounds.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Shuo Chu, Hui-Long Wang, Hao Huang, Guo-Jing Jiang, Rong Yan, Wen-Feng Jiang
Summary: Constructing heterojunction is an effective approach to improve the photocatalytic activity of semiconductor photocatalysts. In this study, a novel AgIO3/BiOIO3 Z-scheme binary heterojunction was successfully fabricated and investigated. The heterojunction exhibited universal photocatalytic performance for decomposition of diverse persistent organic contaminants, which was attributed to the intimate contact interface and well-matched band structure between BiOIO3 and AgIO3.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)