Article
Chemistry, Physical
Shouchun Ma, Yang Yang, Jiaqi Li, Yuqing Mei, Yufeng Zhu, Jie Wu, Li Liu, Tongjie Yao, Qingfeng Yang
Summary: By constructing a Z-scheme Fe-2(MoO4)(3)/Ag/Ag3PO4 heterojunction, the issues of photocorrosion and quenching effect by in-situ generated H2O2 in Ag3PO4-based photocatalysts have been addressed, leading to improved degradation rate and stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Chemical
Bin Fang, Zipeng Xing, Meijun Guo, Yalu Qiu, Yongqian Cui, Zhenzi Li, Yu Wang, Peng Chen, Wei Zhou
Summary: A novel P-doping CdS nanorods@NiFe layered double hydroxide (LDH) Z-scheme photocatalyst was synthesized, showing excellent catalytic performance in hydrogen generation and bisphenol A degradation. The synergistic effect of P-doping and Z-scheme heterojunction contributes to the enhanced catalytic activity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Yang Yang, Shouchun Ma, Jiapeng Qu, Jiaqi Li, Yi Liu, Qianqian Wang, Jing Jing, Ye Yuan, Tongjie Yao, Jie Wu
Summary: The conversion of Fe2O3@PPy to Z-scheme Fe2O3@PPy/PB can significantly enhance the degradation rate in photo-Fenton reaction due to higher visible-light harvest, enhanced separation efficiency of photoinduced charges, and lower interface resistance.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Yina Guan, Siwei Zhao, Jiaqi Li, Xianhe Deng, Shouchun Ma, Yanqiu Zhang, Baojiang Jiang, Tongjie Yao, Baifu Xin, Jiaxu Zhang, Jie Wu
Summary: The Photo-Fenton reaction combining the photocatalytic reaction and Fenton reaction showed excellent degradation performance. Fe-C3N4/Ti3C2/C-TiO2 catalyst exhibited high photothermal effect, enhanced H2O2 activation, and at least 4.2 times higher degradation rate compared to reference catalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Xianhe Deng, Yang Yang, Yuqing Mei, Jiaqi Li, Changliang Guo, Tongjie Yao, Yongmei Guo, Baifu Xin, Jie Wu
Summary: The sandwich-like Fe3O4@FeS2@C@MoS2 composite was prepared by coating MoS2 shell on the surface of core/shell Fe3O4@C composite. It exhibited a higher degradation efficiency in photo-Fenton reaction and maintained good cycling stability. The study revealed the contribution order of radicals and the impact of the built-in electric field on charge transfer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Rutong Song, Jun Yao, Mei Yang, Zhongbin Ye, Zhuang Xie, Xiang Zeng
Summary: This study improved the photocatalytic effect by introducing hydrogen peroxide and constructing a Z-scheme, and maximized the degradation ability of the catalyst. The adherence of bismuth tungstate nanosheets onto the framework surface and the change in the number of active sites were also explored. The involvement of hydroxide radical in pollutant degradation was identified as a significant finding.
Article
Engineering, Environmental
Govindan Jagan, Karunamoorthy Saravanakumar, Jianbing Li, Yeomin Yoon, Chang Min Park
Summary: In this study, a novel double Z-scheme g-C3N5/BiFeO3/ZnIn2S4 (CBZ) heterojunction nanocomposite was synthesized using a simple wet chemical process. The prepared nanocomposite exhibited excellent performance in removing sulfamethoxazole (SMX) pollutant under visible light irradiation. The enhanced efficiency was attributed to the improved Fe2+/Fe3+ conversion and the synergistic coupling of the CBZ-40% in the ternary heterojunction.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Chenxi Zhu, Yingjun Wang, Longyu Qiu, Weiwei Yang, Yongsheng Yu, Jiaming Li, Yequn Liu
Summary: Designing efficient catalysts for photo-Fenton organic contaminant degradation is crucial in addressing environmental deterioration and energy crises. In this study, we successfully synthesized a highly effective and stable Z-scheme NiFe LDH/Bi4O5I2 catalyst for tetracycline (TC) photodegradation. The optimized catalyst demonstrated over 95% TC degradation efficiency under visible light irradiation. It exhibited excellent stability, low metal ions leaching, and wide pH applicability, making it a potential candidate for TC elimination. The enhanced performance can be attributed to the Z-scheme heterojunction and accelerated H2O2 decomposition, facilitating the synergy between photocatalysis and Fenton reaction. This work provides insights for designing Z-scheme catalysts for photo-Fenton degradation of organic contaminants and other solar energy applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Yiyang Liu, Xuejiang Wang, Qiunan Sun, Meng Yuan, Zhenhua Sun, Siqing Xia, Jianfu Zhao
Summary: A novel floating Z-scheme photo-Fenton catalyst FeMo3Ox/g-C3N4/EP was prepared to address the low efficiency of Fe (II) regeneration in the conventional Fenton system. The dual ion synergy system and photoreduction by Z-scheme photocatalyst enhanced the Fe (II) regeneration, leading to excellent pollutant degradation efficiency. Radical scavenger experiment, ESR, and XPS were used to confirm the mechanism of free radicals' formation and Fe/Mo redox cycling, while mass spectrum analysis and Orbital-Weighted Fukui Function revealed the possible degradation pathways of the pollutants.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Jingkai Lin, Wenjie Tian, Zheyu Guan, Huayang Zhang, Xiaoguang Duan, Hao Wang, Hongqi Sun, Yanfen Fang, Yingping Huang, Shaobin Wang
Summary: This review summarizes the recent progress in fabricating various types of graphitic carbon nitride (g-C3N4, CN)-based catalysts for the photo-Fenton-like reaction process. Different engineering strategies and modifications are discussed, and the catalytic activities of CN loaded with different metal-based materials are evaluated. The construction of heterojunctions using bandgap-matching semiconductors is also examined. The critical factors that determine the performance of CN-based photocatalysts in Fenton-like catalysis are systematically discussed.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
Salma Izati Sinar Mashuri, Muhd Firdaus Kasim, Noor Haida Mohd Kaus, Yie Hua Tan, Aminul Islam, Umer Rashid, N. Asikin-Mijan, Jeyashelly Andas, Y. H. Taufiq-Yap, Muhamad Kamil Yaakob, Wan Izhan Nawawi Wan Ismail, Mohd Lokman Ibrahim
Summary: This study aimed to synthesize a low-energy consumption photocatalyst by introducing CdS heterojunction to ZnO photocatalyst. The ZnO/CdS photocatalyst with reduced bandgap operates under a 21-Watt LED visible light source and completely degrades 100 mg/L methylene blue solution. The reusability of Z3C1 demonstrates the potential of CdS in wastewater treatment by enhancing visible light absorption and delaying recombination of electron-hole pairs.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Materials Science, Multidisciplinary
Weizhe Wang, Haowei Huang, Xi Ke, Xiao Liu, Shuhui Yang, Kunqiang Wang, Le Huang, Chen Tu, Zhaoqiang Zheng, Dongxiang Luo, Menglong Zhang
Summary: In this work, Z-scheme heterojunction photocatalysts composed of FAPbBr(3) nanocrystals and WO3 were prepared and showed excellent performance in the photocatalytic oxidation of benzyl alcohol to benzaldehyde or benzoic acid. Manipulation of the size of FAPbBr(3) nanocrystals altered the product selectivity.
MATERIALS & DESIGN
(2022)
Article
Chemistry, Physical
Wenliang Wang, Haochun Zhang, Yigang Chen, Haifeng Shi
Summary: In this study, a 2D/2D S-scheme heterojunction of α-Fe2O3/g-C3N4 was constructed and used as a photo-Fenton catalyst, significantly improving the degradation efficiency of tetracycline. The catalyst exhibited a high catalytic activity due to the synergy between photocatalysis and Fenton reaction. The study provided insights into the construction and reaction mechanism of the catalyst, offering a promising method for the development of high-performance photo-Fenton catalytic systems in wastewater treatment.
ACTA PHYSICO-CHIMICA SINICA
(2022)
Article
Engineering, Environmental
Xianhe Deng, Wanting Hui, Yina Guan, Yanqiu Zhang, Tingting Zhao, Changliang Guo, Baifu Xin, Yang Yang, Tongjie Yao, Jie Wu
Summary: Catalytic reactions confined in nanoreactors can be accelerated by utilizing the confinement effect. In this study, a FeS2/MoS2@C nanoreactor with FeS2/MoS2 heterojunctions encapsulated inside a carbon capsule was prepared. The nanoreactor showed improved degradation performance in photo-Fenton reactions, and the catalytic mechanism and advantages of the nanoreactor were revealed.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Jingjing Zheng, Guoxia Liu, Zhengbo Jiao
Summary: Novel Ag/Fe2O3/BiOI Z-scheme heterostructures were successfully synthesized by a facile hydrothermal method. The composition and properties of the nanocomposites were characterized using various techniques. The Ag/Fe2O3/BiOI systems exhibited excellent degradation performance for tetracycline (TC), with the composite (Ag/Fe2O3/BiOI-2) showing the highest efficiency at specific Ag and Fe2O3 contents. The effects of operational parameters on degradation efficiency were investigated, and the photo-Fenton mechanism was studied, revealing that •O2- played a crucial role in TC degradation. The enhanced performance of Ag/Fe2O3/BiOI heterostructures was attributed to the synergistic effect between photocatalysis and the Fenton reaction.
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)