Article
Chemistry, Inorganic & Nuclear
Jing Lu, Yaqian Zhang, Bowen Wang, Fenge Zhang
Summary: A Z-scheme CDs/Bi4O5Br2/ATP composite photocatalyst with varied proportions of CDs was synthesized using a dynamic adsorption method, which effectively lowered the recombination rate of electron-hole pairs and exhibited excellent photocatalytic degradation performance. The composite photocatalyst also demonstrated good stability and a high degradation efficiency for ciprofloxacin under simulated sunlight.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Xiaoli Jin, Jian Cao, Huiqing Wang, Chade Lv, Haiquan Xie, Fengyun Su, Xin Li, Ruixue Sun, Shukui Shi, Mengfei Dang, Liqun Ye
Summary: In this study, an Ag-bridged Z-scheme Bi4O5Br2/AgBr heterostructure was developed for efficient photocatalytic CO2 reduction. The Ag mediator acted as a bridge to shuttle electrons between Bi4O5Br2 and AgBr, effectively separating electron-hole pairs and maintaining strong reduction reaction. The Z-scheme Bi4O5Br2/AgBr heterostructures showed significantly enhanced photocatalytic CO2 reduction performance compared to pristine Bi4O5Br2.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Environmental
Xiaohui Zhang, Zhiwei Chen, Ying Luo, Xiaole Han, Qingqing Jiang, Tengfei Zhou, Haijian Yang, Juncheng Hu
Summary: The research team successfully designed a Z-scheme CdS/NH2-MIL-125(Ti) heterojunction photocatalyst, which can significantly enhance the hydrogen evolution rate and provide a new avenue for solar-driven energy conversion.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Zhuzhu Zhang, Rui Ji, Qimeng Sun, Jinghui He, Dongyun Chen, Najun Li, Hua Li, Antonio Marcomini, Qingfeng Xu, Jianmei Lu
Summary: Constructing photocatalysts with excellent visible light utilization efficiency and high-efficiency photo-generated charge transfer rate is crucial for the photodegradation of organic pollutants in wastewater. In this study, oxygen-doped graphitic carbon nitride (g-C3N4) was prepared and used as a responsive material for a wide range of visible light. CdS nanoparticles were then anchored onto the g-C3N4 to form a Z-scheme heterojunction, which facilitated interfacial charge separation. The results showed that the oxygen-doped g-C3N4/CdS-3 displayed a significantly higher degradation rate for 2-chlorophenol compared to g-C3N4.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Review
Chemistry, Physical
Dong Liu, Shengtao Chen, Renjie Li, Tianyou Peng
Summary: This review summarizes the progress and advantages of Z-scheme heterojunction photocatalysts, highlights the applications of various types of Z-scheme nanostructured materials in photocatalytic energy conversion, and discusses different strategies for enhancing the photocatalytic efficiency.
ACTA PHYSICO-CHIMICA SINICA
(2021)
Article
Materials Science, Multidisciplinary
Guojing Wang, Zhiwei Tang, Jing Wang, Shasha Lv, Yunjie Xiang, Feng Li, Chong Liu
Summary: In this study, a Bi2O2.33-CdS direct Z-scheme heterojunction was fabricated based on energy band engineering. The heterojunction exhibited excellent photocatalytic performance for CO2 reduction, with high CO yield rate and selectivity.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Bin Wang, Junze Zhao, Hailong Chen, Yu-Xiang Weng, Hua Tang, Ziran Chen, Wenshuai Zhu, Yuanbin She, Jiexiang Xia, Huaming Li
Summary: The study successfully designed and fabricated a CPDs/Bi4O5Br2 heterojunction with high-efficiency photocatalytic CO2 reduction activity. The composite material demonstrated significantly improved CO production compared to Bi4O5Br2 nanosheets under Xe lamp irradiation, with a 5.43 fold increase. Additionally, the CPDs with up-conversion properties were able to broaden the light utilization range, leading to enhanced CO2 conversion performance at excitation wavelengths greater than 580 nm.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Jingying Li, Zhi Xia, Dong Ma, Guocheng Liu, Ningning Song, Dan Xiang, Yanjun Xin, Guodong Zhang, Qinghua Chen
Summary: The immobilized Z-scheme composite photocatalyst CdS/Au/TiO2 NBs was constructed to enhance the photocatalytic activity of TiO2 NBs under solar light irradiation. The higher photocatalytic activity for antibiotic degradation was attributed to increased light absorption and efficient separation of photogenerated electrons and holes. Analysis of reaction products and radicals trapping experiments revealed the photocatalytic mechanism and active species.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
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, Inorganic & Nuclear
Wang Cao, Meng Wang, Jie Yang, Bing Han, Xiaochun Zhu, Yuping Wang
Summary: The 3D flower sphere Bi2S3/Bi4O5Br2 heterojunction was successfully synthesized using convenient solvothermal methods. The addition of nanorod Bi2S3 accelerated electron transfer and inhibited photocorrosion, leading to improvements in light absorption range, intensity, specific surface area, and photocurrent. The 0.10BSB showed the highest degradation efficiency for ciprofloxacin and tetracycline. A rational Z-scheme photocatalytic mechanism for the Bi2S3/Bi4O5Br2 heterojunction was proposed.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Chemistry, Physical
Jiaqi Zhang, Mengting Lu, Wenbin Li, Huaiguo Xue, Jingqi Tian, Tengfei Jiang
Summary: In this study, an in-situ synthesis route was proposed to fabricate 0D/2D CuFe2O4/MXene heterojunctions, which enhance charge transfer during photocatalytic reactions. The Z-scheme mechanism of the heterojunctions was proposed to explain the improved charge separation efficiency through the transfer of photoinduced holes from MXene to CuFe2O4. The heterojunctions exhibited superior activity in the selective photocatalytic oxidation of benzyl alcohol.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Lanxin Li, Juanjuan Luo, Lisong Chen, Jianlin Shi
Summary: A ZnCo2S4/CdS Z-scheme heterojunction was successfully constructed in this study, which improved the stability and activity of the photocatalyst. A ZnCo2S4-assisted CdS regeneration mechanism was proposed for the first time, providing new insights into solving the stability and environmental pollution concerns of CdS-based photocatalysts.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
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
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
Spectroscopy
Xiaoling Xu, Xiaoxi Xu, Tianqi Wang, Mengxiao Xu, Xianglu Yang, Junwei Hou, Dandan Cao, Qingyao Wang
Summary: The ternary CdS/Ag/TiO2 NTs photocatalysts with indirect Z-scheme heterojunctions were successfully synthesized and demonstrated great performance in the photodegradation and hydrogen production. The extended light absorption range and enhanced photoelectron transportation efficiency of the ternary catalyst were observed compared to the binary heterojunction counterpart. This work provides practical guidance for designing high-efficient photocatalysts with Z-scheme heterojunctions for solar energy development, pollutant remediation, and photoelectric conversion.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(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)