Article
Chemistry, Inorganic & Nuclear
Yuhan Xie, Boyu Dong, Xuemin Wang, Siyuan Wang, Jinxi Chen, Yongbing Lou
Summary: This study successfully fabricated visible-light-responsive three-dimensional core-shell CoSe2/ZnIn2S4 heterostructures and achieved attractive activity in photocatalytic hydrogen evolution. The presence of CoSe2 improved light absorption and accelerated charge transfer kinetics. The strong interaction between CoSe2 and ZnIn2S4 reduced charge recombination, further enhancing photocatalytic activity for hydrogen evolution.
DALTON TRANSACTIONS
(2024)
Article
Materials Science, Ceramics
Chengjia Zhang, Tongtong Zhang, Yanan Wang, Qian Liang, Man Zhou, Xiazhang Li, Zhongyu Li, Song Xu
Summary: A 3D CdMoO4@CdS core-shell visible-light-driven photocatalyst was successfully synthesized by in-situ method. Various analytical techniques confirmed the uniform loading of CdS dots on the surface of CdMoO4 hollow microspheres, forming a 3D core-shell CdMoO4@CdS heterojunction. The composite material exhibited enhanced photocatalytic efficiency for degrading malachite green under visible light irradiation, which can be attributed to the effective diffusion and separation of photo generated carriers.
CERAMICS INTERNATIONAL
(2022)
Article
Environmental Sciences
Khaled Benabbas, Nassira Zabat, Imene Hocini
Summary: A Fe3O4/CuO core-shell heterostructure photocatalyst was successfully synthesized via hydrothermal method, exhibiting excellent photodegradation activity for azo dye Direct Red 89 under visible light irradiation. The catalyst showed enhanced photocatalytic performance compared to pure Fe(3)O(4)or CuO, and maintained high activity even at high dye concentrations. Additionally, the catalyst's paramagnetic property facilitated its recovery and reuse.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Xinfei Ji, Haiping Xu, Shudong Liang, Lei Gan, Rongbin Zhang, Xuewen Wang
Summary: The study presents a novel method by sulfurizing ZnO in-situ to construct a 3D ordered macroporous ZnS@ZnO heterostructure, which effectively improves the limitations of ZnO in photocatalytic H-2 evolution and exhibits excellent catalytic performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Feng Guo, Xiliu Huang, Zhihao Chen, Yuxing Shi, Haoran Sun, Xiaofang Cheng, Weilong Shi, Lizhuang Chen
Summary: The hollow core-shell heterostructure photocatalyst with ZnIn2S4 nanosheets grown in situ on ZnSnO3 cubes achieves efficient photocatalytic hydrogen evolution. The unique structure enhances light absorption, reduces charge transfer path, and provides abundant active sites for promoting photocatalytic water splitting efficiency.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Zhibing Xu, Nian Liu, Qixin Wei, Haijun Liu, Pengfei Zhang, Yi Han
Summary: A facile approach to fabricate Ag3PO4@resin core-shell composite microspheres as visible-light-driven photocatalyst has been successfully established. The composite microspheres showed good potential in degrading methylene blue and phenol under visible light irradiation, while reducing their toxicities to soil microorganisms. The high decoloring efficiency of the prepared microspheres in degrading methylene blue solution highlights their promising application in environmental remediation.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Ziqiang Zheng, Ting Wang, Fang Han, Qing Yang, Benxia Li
Summary: The research developed a three-component Ni/(Au@CdS) core-shell nanostructured photocatalyst, which achieved selective transformation of benzyl alcohol with high yields of hydrogen (H-2) and benzaldehyde. Furthermore, the study revealed the synergistic effect of plasmonic effect and metal cocatalyst in enhancing photocatalysis.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Physics, Condensed Matter
Anoop Singh, Aamir Ahmed, Asha Sharma, Chandan Sharma, Satya Paul, Ajit Khosla, Vinay Gupta, Sandeep Arya
Summary: The study prepared core-shell structured Ag-CdS@Pr-TiO2 nanoparticles and investigated their photocatalytic activity for degrading methyl orange under visible light. Various techniques confirmed the composition, morphology, and optical properties of the synthesized core/shell nanoparticles. The synthesized material showed potential for efficiently degrading methyl orange based on the discoloration of dye within 30 minutes.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Materials Science, Ceramics
Chaojie Shi, Yuan Wang, Jie He, Deqiang Feng, Rui Zhang, Lingcheng Zheng, Zhengchun Yang, Huayi Li, Peng Pan, Jinshi Zhao, Kailiang Zhang, Yahui Cheng, Hui Liu
Summary: A photocatalyst based on ZnFe2O4/Ag nanocomposite particles on a 3D columnar array Si substrate was prepared. The 3D columnar array Si substrate improved the photocatalytic performance and applying a magnetic field further enhanced the photocurrent and photo-degradation efficiency.
CERAMICS INTERNATIONAL
(2022)
Article
Green & Sustainable Science & Technology
Yujie Tan, Weixuan Zhao, Luying Sun, Renxi Zhang, Jianyuan Hou, Shaoxiang Fu, Weien Xu, Ruina Zhang
Summary: A plasma-assisted catalyst modified with biochar was found to significantly enhance the photoactivity of TiO2 for formaldehyde abatement. The addition of 5% biochar to the catalyst (C/TiO2) achieved the highest removal efficiency by increasing meso/microporous structures, decreasing the bandgap, and diminishing the recombination rate of electron-hole pairs. This new catalyst has promising applications for the degradation of volatile organic compounds.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Masoud Emami Mehr, Hossein Maleki-Ghaleh, Mohadeseh Yarahmadi, Majid Kavanlouei, M. Hossein Siadati
Summary: In this study, core/shell ZnO/TiO2 nanocomposite samples were prepared using the sol-gel method at different time spans. The sample prepared in the 15-minute time span (ZnTi15) exhibited the highest photocatalytic activity and charge carrier density, making it the optimal sample. The formation of a heterojunction at the ZnO/TiO2 interface could be attributed to the increased photocurrent density observed for the ZnTi15 sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Applied
Yang Chen, Guobing Mao, Yawen Tang, Heng Wu, Gang Wang, Li Zhang, Qi Liu
Summary: The novel Cr2O3/C@TiO2 composite synthesized in this study showed enhanced visible light absorption, reduced recombination rate of electrons and holes, and abundant active sites for photoreduction reaction, leading to superior H-2 production compared to pure TiO2.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Engineering, Environmental
Alkadevi Verma, Shaili Pal, Jyoti Kuntail, Neha Kamal, R. K. Mandal, Indrajit Sinha
Summary: This study investigates the photocatalytic properties of Cu@Ag and Ag@Cu core-shell nanostructures for the reduction of p-nitrophenol by glycerol under dark and visible light conditions. The Cu@Ag nanoparticles showed significantly enhanced plasmonic photocatalytic activity compared to Ag@Cu nanoparticles. Density functional theory calculations and time-dependent density functional theory simulations were used to understand the electronic structure and mechanism of the core-shell nanostructures.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
S. Sugashini, T. Gomathi, R. Aruna Devi, P. N. Sudha, K. Rambabu, Fawzi Banat
Summary: The study successfully synthesized a biocomposite-based nano-photocatalyst using sol-gel technique, which showed excellent photocatalytic performance in degrading crystal violet dye, achieving 95% degradation under visible light irradiation.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Physical
Qingyuan Luo, Ronghuo Yuan, Yan-Ling Hu, Defa Wang
Summary: InxGa1-xN nanowires with core/shell structure grown on n-type Si substrate by Ni-assisted CVD method were studied for their photocatalytic properties. Thicker GaN shell was found to reduce photoactivity, and a strategy to improve performance was proposed.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Yunhui Wu, Jiurong Li, Xiujian Zhao, Xiao Gong
Summary: In this study, nickel-doped carbon dots (Ni-CDs) with tunable fluorescence emission were successfully synthesized using a simple one-step solvothermal method. The introduction of Ni enhanced the fluorescence intensity and caused a redshift. By mixing Ni-CDs with polyvinylpyrrolidone (PVP), the self-quenching effect of solid-state fluorescence was effectively avoided. Based on this, high-performance green, yellow, and red light-emitting diodes (LEDs) were constructed, demonstrating the potential of these carbon dots for solid-state lighting applications.
Article
Nanoscience & Nanotechnology
Jiayao Fan, Bingxue Liu, Mingyu Chen, Xianzeng Li, Dongdong Xu, Yue Lin, Naien Shi, Xiangxing Xu, Jianchun Bao, Min Han
Summary: Amorphous-dominated PdCuMo nanoparticle assemblies with numerous amorphous/crystalline heterophase interfaces, mesoporous structures, and high specific surface area were successfully synthesized via a polyether-assisted thermal reduction strategy. These assemblies exhibited unparalleled hydrogen evolution reaction (HER) performance, outperforming binary counterparts, control samples with high crystallinity and benchmark Pt/C. This work provides insights for the design of advanced amorphous-dominated Pd-based nanostructures for water splitting and other applications.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Zhilin Li, Qiaoqiao Li, Mengyan Cao, Liujiang Zhou, Xiujian Zhao, Xiao Gong
Summary: Metal halide perovskite materials have attracted attention for lighting applications due to their unique optoelectronic properties. However, their complex preparation processes and toxicity of lead restrict their practical use. This study reports Sb3+ and Bi3+ doping of 0D (NH4)2SnCl6 perovskite powders, which exhibit wide emission peaks at different wavelengths with high photoluminescence quantum yield (PLQY). The mechanisms of the doping effects are proposed based on experimental and theoretical analysis. Both Sb3+ and Bi3+ dopings enhance the air and thermal stability of 0D (NH4)2SnCl6 perovskites, showing great potential for solid-state lighting.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Fang Yan, Jiurong Li, Xiujian Zhao, Xiao Gong
Summary: Multicolor fluorescent carbon dots with unconventional luminescence behavior were prepared using o-, m-, or p-phenylenediamine (o-PD, m-PD, or p-PD) and 2,3-dihydroxynaphthalene as reaction precursors. The fluorescence emission of the synthesized carbon dots followed a rule of o-PD to m-PD to p-PD from blue to red, contrary to most previously reported results. The differences in the polymerization, surface states, functional groups, and graphite N content of the carbon dots were identified as the main reasons for the unconventional luminescence behavior. These multicolor carbon dots have promising applications in LED lighting and anticounterfeiting fields.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Qiufen Liu, Xuelei Chen, Jiahao Wu, Liming Zhang, Guanjie He, Shouqin Tian, Xiujian Zhao
Summary: In this paper, amorphous ZIF-8 was modified with carboxyl functional groups (H3BTC-ZIF-8) to load organic fluorescent dyes (R6G and C151) and prepare R6G/C151/H3BTC-ZIF-8 composite films. The enhanced fluorescence properties were attributed to the increased interactions between the dyes and H3BTC-ZIF-8, which reduced the ACQ effect and resulted in a white-light-emitting composite film with high photoluminescence quantum yield (PLQY). This strategy provides guidance for the development of white-light-emissive materials.
Article
Chemistry, Multidisciplinary
Zhilin Li, Qiaoqiao Li, Mengyan Cao, Zhihui Rao, Xinyu Shi, Liujiang Zhou, Xiujian Zhao, Xiao Gong
Summary: In this study, Sb3+-doped Cs2ZrCl6 crystals with excellent optical properties and stability were successfully synthesized. The crystals exhibited blue and orange-red emissions under 254 nm and 365 nm light, respectively, attributed to the presence of [ZrCl6]2- and [SbCl6]3- octahedra. The Cs2ZrCl6:xSb(3+) crystals with a PLQY of up to 52.5% showed potential for white light-emitting diode (WLED) fabrication.
Article
Chemistry, Multidisciplinary
Yujie Sun, Fei Shi, Bo Wang, Naien Shi, Zhen Ding, Linghai Xie, Jiadong Jiang, Min Han
Summary: Metal-organic frameworks (MOFs) with hierarchical porous structures have great potential in various applications, but large-scale production of these materials with a simple method is still a challenge. To address this issue, a gelation-based approach was proposed to fabricate hierarchical porous MOF particles, which showed improved substance transfer rates. The gel system consisted of small nano and submicron particles, and the gel state led to the formation of porous defects inside the nanoparticles. Furthermore, the combination of hierarchical porous MOF particles and polyaniline exhibited exceptional electrochemical charge storage performance.
Article
Chemistry, Physical
Yanmei Gan, Lizhong Liu, Qixin Zhang, Jianren Huang, Songjiu Han, Bingbing Chen, Yang Liu, Qiangmin Yu, Lunhui Guan, Tianhua Zhou, Min Han, Yi Zhao, Wei Huang
Summary: Advanced anode materials with stable and fast K-ion storage behavior are developed by encapsulating core-shell NiS2@C nanoparticles within MOF-derived hollow carbon shell. The internal interfacial engineering enhances the charge transport kinetics, pseudocapacitive behavior, and mitigates mechanical stress in the outer carbon shell. The yolk-shell NiS2@C@C composite exhibits ultrahigh capacity and excellent cycle stability, making it highly competitive for potassium-ion batteries.
ENERGY STORAGE MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Yongfei Hu, Hao Dong, Arnauld Robert Tapa, Javad Shamsi, Javad Shabani Shayeh, Albert Trokourey, Baoshun Liu, Xiujian Zhao, Yi Xie
Summary: In this study, a facile and scalable NaBr-assisted room-temperature aqueous phase procedure was developed for the synthesis of all-inorganic CsPbBr3-embedded PbBr(OH) with controlled hierarchical structures, excellent ambient stability, and strong activity for photocatalytic degradation of dyes in simulated organic wastewater. The CsPbBr3-embedded PbBr(OH) photocatalysts exhibited excellent photocatalytic activity for dye degradation under visible-light irradiation, surpassing that of commercial TiO2 and other perovskite-based materials. This work provides insights into the green synthesis of ultra-stable perovskite-based nanomaterials for photocatalytic degradation of organic pollutants and other promising water treatment technologies.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Yuzhou Hu, Ying Ye, Wenchao Zhang, Kai Li, Yao Zhou, Yudong Zhang, Zhao Deng, Jianjun Han, Xiujian Zhao, Chao Liu
Summary: Precise and efficient patterning of light-emitting structures in high resolution and full-color light-emitting diodes is achieved by light-induced inverted patterning of nanocrystals in glasses for micro-light-emitting diodes. This method involves the use of ultrafast laser pulse to induce structural destruction and amorphization of nanocrystals in glasses, resulting in inverted luminescent patterns. The high-throughput patterning of micrometer-scale, thermally stable, and highly photoluminescent structures in nanocrystals embedded glass provides a novel way to fabricate high-performance and ultrahigh-resolution color conversion layers for micrometer-scale light-emitting diodes.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Qiufen Liu, Mingfeng Zhang, Mengfan Lu, Ziao Wang, Gan Luo, Jianfeng Lu, Dawen Zeng, Xiujian Zhao, Shouqin Tian
Summary: A ZrO2-SiO2 composite film with enhanced mechanical properties was synthesized using a simple sol-gel method. Compared to a pure SiO2 film, the ZrO2-SiO2 film exhibited increased hardness and showed high transmittance gain and improved efficiency in perovskite solar cells with a Zr/Si mole ratio of 0.06.
Article
Chemistry, Multidisciplinary
Jiayao Fan, Xinyu Zhang, Min Han, Xing Xiang, Cong Guo, Yue Lin, Naien Shi, Dongdong Xu, Yu Lai, Jianchun Bao
Summary: Crystalline/amorphous heterophase nanostructures have been developed as highly active and stable catalysts for the oxygen evolution reaction. The catalytic mechanism follows a lattice-oxygen-mediated pathway.
Article
Chemistry, Physical
Jiurong Li, Jiancang Chen, Xiujian Zhao, Alberto Vomiero, Xiao Gong
Summary: Organosilane-grafted carbon dots (Si-CDs) were synthesized by hydrothermal method and can be uniformly dispersed in polyvinyl alcohol (PVA) matrix. Si-CDs/PVA thin-film LSCs exhibit excellent absorption in the UV spectral region and about 90% transmission in the visible range, with high stability and power conversion efficiency (PCE).
Article
Chemistry, Physical
Wenhao Zhao, Liping Wen, Ivan P. Parkin, Xiujian Zhao, Baoshun Liu
Summary: In this study, the Fermi-level (E-F) shift of the UV-illuminated Ag/TiO2 system under gaseous conditions was evaluated using in situ photoconductance and theoretical analysis. The role of Ag nanoparticles in storing and separating electrons was discussed, and it was found that the E-F of Ag/TiO2 is located deeper in the gap and is less affected by temperature compared to undecorated TiO2. The analysis showed that approximately 46 electrons can be stored in 10 nm Ag nanoparticles under the experimental conditions, and the blue-shift of localized surface plasmon resonance (LSPR) in Ag nanoparticles is not related to electron storage.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Ling Li, Yuwei Zhong, Yongfei Hu, Jilin Bai, Fen Qiao, Abdelaal S. A. Ahmed, Ghafar Ali, Xiujian Zhao, Yi Xie
Summary: This study develops a facile room-temperature approach for the synthesis of environmentally friendly all-inorganic orange-red-emitting Ag-doped and Mn-doped lead-free halide double perovskite Cs2NaBiCl6 (CNBC) in the shape of an octahedron. Both Ag and Mn doping heavily enhance the photoluminescence intensity of the CNBC samples, and their stability is studied under various conditions. The photocatalytic performances of the samples are investigated, demonstrating a strong and stable photodegradation activity. This work provides a facile and cost-effective protocol for doped lead-free double perovskites as stable and environmentally friendly alternative photocatalysts.