ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2020
·Vol. 28
·期 3
·3465-3474
·
IF 3.056
Bai Maojuan,Xu Chengcheng,Huang Xuanye,Yin Han,Wan Jun
CuSe as an excellent photocatalytic semiconductor material has wildly used in the field of photocatalysis. In this paper, CuSe-PDA/g-C 3 N 4 was designed and synthesized, and the photocatalytic performance of CuSe was further enhanced by the addition of polydopamine (PDA) and graphite phase carbon nitride (g-C 3 N 4 ). The as-prepared CuSe-PDA/g-C 3 N 4 was characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR), and elemental mapping. The specific surface area and porous characteristics of the material were also studied by N 2 adsorption-desorption isotherm, which the specific surface area were 186.6 m 2 /g and pore size were of 3.1 nm by BET data analysis. The photocatalytic conditions for the degradation of methylene blue (MB) by CuSe-PDA/g-C 3 N 4 were optimized in the experiment. The results showed that the photocatalytic performance of CuSe-PDA/g-C 3 N 4 under visible-light illumination were better than CuSe and PDA owing to the narrow band gap energy and delayed electron-hole recombination. Under the optimized conditions, the removal rate reach to 99% of 50 mg/L MB within 60 min irradiation time. Moreover, the MB removal rate was over 90% through six repeated experiments, which proved that the CuSe-PDA/g-C 3 N 4 composite nanomaterials have good stability and reusability.
研究领域:
材料科学
·
环境科学
·
化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RSC Advances
·
2022
·Vol. 12
·期 33
·21558-21566
·
IF 4.036
Chen Chen,Qilin Hu,Fan Yang,Hongyu Xue,Yuning Zhang,Hailong Yan,Yang Lu,Yongsong Luo
Due to the low price and abundant reserves of sodium resources, sodium-ion batteries have become the main candidate for the next generation of energy storage equipment, particularly for large-scale grid storage and low-speed electric vehicles. Transition metal selenides have attracted considerable attention because of their high reversible capacity, superior electrical conductivity and versatile structures. In this study, two-dimensional CuSe nanosheets are synthesized via a simple hydrothermal reaction. When acting as an electrode material for sodium-ion batteries, the CuSe electrode exhibits an initial coulombic efficiency of 96.7% at a current density of 0.1 A g−1 and a specific capacity of 330 mA h g−1 after 100 operation cycles, as well as retains a specific capacity of 211 mA h g−1 even at a high current density of 10 A g−1. Moreover, the anode delivers a specific capacity of 236 mA h g−1 after 3300 cycles at 5 A g−1 with a capacity retention of 91.2%. In sodium-ion hybrid capacitors (SHICs) with the two-dimensional CuSe nanosheets and Ti3C2Tx MXene as the negative and positive materials, respectively, the nanosheets without any pre-sodiation present a lifespan of up to 2000 cycles at 2 A g−1 and a capacity retention of about 77.7%.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Biomaterials Science & Engineering
·
2021
·
IF 4.749
Jiarui Wu,Zhanjie Zhang,Chenxu Qiao,Changfeng Yi,Zushun Xu,Tianyou Chen,Xiaofang Dai
In recent years, the combination treatment of chemotherapy and photothermal therapy (PTT) has emerged as an efficient approach to improve anticancer activity. Here, we combine zeolitic imidazolate framework-67 (ZIF-67) and CuSe to build a multifunctional therapeutic platform (ZIF-67@CuSe@PVP) with an efficient chemo-photothermal therapy for cancer treatment. ZIF-67@CuSe@PVP nanoparticles were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), dynamic light scattering (DLS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), UV–vis, Fourier transform infrared (FT-IR), and nitrogen adsorption–desorption isotherms. These nanoparticles exhibited excellent pH-responsive doxorubicin hydrochloride (DOX) releases due to the decomposition of ZIF-67 and excellent photothermal conversion efficiency (36%) without apparent deterioration during three cycles. In vivo biodistribution evaluation revealed the passive tumor-targeting ability of ZIF-67@CuSe@PVP@DOX via the enhanced permeability and retention (EPR) effect. Both in vitro and in vivo data demonstrated excellent anticancer efficacy of ZIF-67@CuSe@PVP in tumor-bearing mice. This multifunctional therapeutic platform could have certain clinical application potential.
研究领域:
纳米医学
·
肿瘤学
·
材料科学
✓ 已验证
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Min Wang,Kaisheng Chen,Guanjun Sun,Zihao Yan,Yongjun Chen,Hongtao Liu,Erling Zhao,Jianbao Li,Xiwen Du
The development of efficient electrocatalysts for hydrogen evolution reaction (HER) in neutral media remains a challenge due to their slow kinetics and low conductivity. Metal selenides are widely used as HER catalysts, but their structural stabilities are not good and the HER performances in neutral media need to be improved. Herein, we report the direct growth of Mo-doped CuSe (Mo 0.33 Cu 0.67 Se) nanosheets with edge-amorphization on Ni foam (NF) through a facile one-pot solvothermal method for the first time, which are inexpensive and possess high-HER performances in neutral media. It was found that Mo 0.33 Cu 0.67 Se only requires an overvoltage of 55 mV to reach a current density of 10 mA cm −2 (with a Tafel slope of 75 mV dec -1 ), which is superior to commercial 20 % Pt/C (73 mV). Doping CuSe with Mo could lead to amorphization of the edges of nanosheets, and both experimental and theoretical results verify that this structure is beneficial for reducing the oxidative dissolution of Se ion and improving stability. Meanwhile, it also optimizes the free energy of H 2 O dissociation, hydrogen adsorption and desorption, thereby effectively enhancing the performance of electrocatalytic hydrogen evolution in neutral media.
研究领域:
材料科学
·
电催化
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Ya-feng Deng,Yong Chen,Xiu-li Zhang,Qian Zhang,Zi-jian Wei,Dong Wang
An in-situ one-step hydrothermal method is used to prepare hybrid CuSe@NiSe nanosheets with vertical orientation and interpenetrating structure on the surface of copper foam (S-CuSe@NiSe). The S-CuSe@NiSe has excellent electrochemical performance and outstanding cycling performance. The specific capacitance of the S-CuSe@NiSe is 1478 F g -1 at a current density of 1 A g -1 and stabilizes at 990 F g -1 at 8 A g -1 . The specific capacitance retention of S-CuSe@NiSe is 81.7% after 10,000 cycles. The all-solid-state flexible capacitors prepared with S-CuSe@NiSe as electrode (S-CuSe@NiSe-SFCs) also exhibit excellent flexibility, superior electrochemical performance and cycle stability. Its capacitance reaches 333 F g -1 at a current density of 1 A g -1 . Capacitance retention of 79.3% has been obtained after 10,000 charge-discharge cycles at 2 A g -1 .
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Shenghao Zhang,Meiling Zhang,Yinhao Zhang,Yingxia Zong,Xu Hun
Here, we designed a catalytic DNA assembly (CDA) amplification strategy to construct a photoelectrochemical (PEC) assay to detect the specific target F3L-gene of Monkeypox Virus (MPXV). Graphdiyne (GDY) and CuSe were synthesized by a surface-assisted deprotection/polymerization method and hydrothermal method, respectively. Then AuNPs and GDY/CuSe nanocomposites were modified on the surface of gold electrode (GE). The hairpin DNA4 (H4) was incubated onto the surface of the electrode by Au-S bond. When the target was present, the CDA was occurred by hairpin DNA1 (H1) and hairpin DNA2 (H2). Then, DNA3 (H3) hybridized with the single stranded region of H1-H2 complex, formed a site that can be hydrolyzed by exonuclease III, led to exonuclease III hydrolysis of DNA and to release the H3 primer (H3P). H3 further opened H4 and triggered a subsequent CDA reaction, ultimately formed a Y-shaped DNA structure on the electrode surface with the help of DNA5 (H5) and DNA6 (H6). The two end sequences of H4 and H6, which constituted the Y-shaped structure, were designed as split H3P fragments. They can be used as primers to trigger CDA reactions for more efficient and characteristic autocatalytic signal amplification. The Y-shaped structure carried H5-ALP, and catalyzed phosphonoxyphenol ( o -PP) to generate benzene-1,2-diol (CA), which could enhance the PEC signal. The linear range is 0.1 fM-10.0 pM with the detection limit of 0.05 fM (3S/N) for MPXV.
研究领域:
生物医学
·
分子诊断
·
纳米材料科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Xiu Gong,Shuhan Fan,Qu Yang,Jing-Liang Yang,Yanli chen,Xiaosi Qi,Hui Shen,Dan Ren,Mingkui Wang
Using photoelectrochemical technology to construct efficient photoelectric materials has aroused extensive research interest. In this study, we propose a two-dimensional porous CuSe@BiOI isotype heterojunction photocathode for CO 2 reduction to formic acid. The heterojunction was constructed by the epitaxial growth of high-quality oriented BiOI nanosheets onto the porous CuSe framework. The CuSe framework as a template to ensure the formation of the (1 0 2) facets of BiOI and the isotropic charge transport characteristics of the (1 0 2) surface greatly improve the efficiency of charge separation and transfer. This CuSe@BiOI isotype heterojunction electrode can efficiently reduce CO 2 to formic acid with a selectivity of up to 80.5 % in 0.5 M potassium bicarbonate aqueous solution. Meanwhile, the performance of the photodetector based on CuSe@BiOI heterostructure is 6.97 × 10 11 Jones and a response rate of 87.13 mA W −1 . This finding provides a new approach to designing stable heterojunction photoelectrocatalysts with isotropy.
研究领域:
材料科学
·
环境科学
·
光电化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2017
·
IF 5.951
Meng Li Liu,Bin Bin Chen,Rong Sheng Li,Chun Mei Li,Hong Yan Zou,Cheng Zhi Huang
Dendritic copper selenides (CuSe) with hierarchical side-branches are synthesized on a large scale through a one-pot rapid, facile, and green hydrothermal route in which natural kiwi juice is employed as the reducing and coating reagent. Importantly, the CuSe have high specific surface area and excellent photocatalytic activity toward model dye malachite green (MG). The degradation rate of MG on the dendritic CuSe reaches 97% within 30 min under natural daylight irradiation. The high degradation capabilities are mainly attributed to a synergetic effect of the hierarchical side-branched structure with the strong adsorption of MG and the natural daylight-driven photocatalytic activity producing highly reactive oxygen. Thus, the dendritic CuSe will have a broad application prospect, which can be used for the treatment of the dye-contaminated wastewater.
研究领域:
材料科学
·
环境科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Xing Qian,Hao Yu,Wenbin Chen,Jianhua Wu,Juan Xia,Ming Chen,Yonglian Xiong,Xiancai Jiang
Among the various non-precious metal catalysts that drive hydrogen evolution reactions (HERs) and dye-sensitized solar cells (DSSCs), transition metal selenides (TMSs) stand out due to their unique electronic properties and tunable morphology. Herein, the multicomponent selenide CuSe-Co 3 Se 4 @VSe 2 was successfully synthesized by doping with metal element vanadium and selenization on the copper-cobalt carbonate hydroxide (CuCo-CH) template. CuSe-Co 3 Se 4 @VSe 2 exhibited the dandelion-like cluster structure composed of hollow nanotubes doped with VSe 2 nanoparticles. Due to the unique structure and the synergistic effect of various elements, CuSe-Co 3 Se 4 @VSe 2 showed excellent alkaline HER and DSSC performances. The DSSC based on CuSe-Co 3 Se 4 @VSe 2 exhibited an impressive power conversion efficiency (PCE) of 9.64 %, which was much higher than that of Pt (8.39 %). Besides, it possessed a low HER overpotential of 76 mV@10 mA cm −2 and a small Tafel slope of 88.9 mV dec −1 in 1.0 M KOH.
研究领域:
材料科学
·
能源化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2019
·Vol. 29
·期 17
·1807191
·
IF 15.621
Zequn Yang,Hailong Li,Jianping Yang,Shihao Feng,Xi Liu,Jiexia Zhao,Wenqi Qu,Pu Li,Yong Feng,Po-Heng Lee,Kaimin Shih
A key challenge in elemental mercury (Hg 0 ) decontamination from flue gas lies in the design of a sorbent with abundant reactive adsorption sites that exhibit high affinity toward Hg 0 to simultaneously achieve rapid capture and large capacity. Herein, zeolitic imidazolate framework-8 (ZIF-8) supported copper selenide (CuSe) nanocomposites are synthesized by a newly designed two-step surfactant-assisted method. The as-prepared CuSe/ZIF-8 with CuSe to ZIF-8 mass ratio of 80% (0.8NC-ZIF) exhibits unparalleled performance toward Hg 0 adsorption with equilibrium capacity and average rate reaching 309.8 mg g −1 and 105.3 µg g −1 min −1 , respectively, surpassing all reported metal sulfides and traditional activated-carbon-based sorbents. The impressive performance of 0.8NC-ZIF for Hg 0 immobilization is primarily attributed to the adequate exposure of the Se-terminated sites with high affinity toward Hg 0 resulted from the layered structure of CuSe. The adsorbed mercury selenide exhibits even higher stability than the most stable natural mercury ore—that is, mercury sulfide—hence minimizing its environmental impact when the CuSe/ZIF-8 sorbent is dumped. This work provides a new mindset for future design of sorbents for efficient Hg 0 capture from industrial flue gas. The results also justify the candidature of CuSe/ZIF to be applicable for mercury pollution remediation in real-world conditions.
研究领域:
环境科学
·
材料科学
·
化学工程
·
污染控制
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2024
·
IF 0
Zheng Yang,Zhang Lin,Wang Xiaocong,Guo Fenghui,Xing Yi,Li Guoliang,Yue Tao
The substantial amount of mercury emissions from coal-fired flue gas causes severe environmental contamination. With the Minamata Convention now officially in force, it is critical to strengthen mercury pollution control. Existing activated carbon injection technologies suffer from poor desulfurization performance and risk secondary-release risks. Therefore, considering the potential industrial application of adsorbents, we selected cost-effective and readily available activated coke (AC) as the carrier in this study. Four metal selenides—copper, iron, manganese, and tin—were loaded onto the AC to overcome the application problems of existing technologies. After 120 min of adsorption, the CuSe/AC exhibited the highest efficiency in removing Hg 0 , surpassing 80% according to the experimental findings. In addition, the optimal adsorption temperature window was 30–120 °C, the maximum adsorption rate was 2.9 × 10 −2 mg·g −1 ·h −1 , and the effectiveness of CuSe/AC in capturing Hg 0 only dropped by 5.2% in the sulfur-containing atmosphere. The physicochemical characterization results indicated that the AC surface had a uniform loading of CuSe with a nanosheet structure resembling polygon and that the Cu-to-Se atomic ratio was close to 1:1. Finally, two possible Hg 0 reaction pathways on CuSe/AC were proposed. Moreover, it was elucidated that the highly selective binding of Hg 0 with ligand-unsaturated Se − was the key factor in achieving high adsorption efficiency and sulfur resistance in the selenium-functionalized AC adsorbent. This finding offers substantial theoretical support for the industrial application of this adsorbent. Graphical Abstract
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
Cell Reports Physical Science
·
2026
·Vol. 7
·期 10
·103575
·
IF 6.9
Qiren Jin,Chaofeng Wang,Zihan Tang,Bingqian Zu,Yingjie Liu,Liping Bao,Tao Ma,Song Chen,Huiju Wu,Liang Wu
The phase control aqueous-phase synthesis of CuSe and Cu 2 Se NPLs • CuSe NPLs show markedly better rate capability and cycling stability than Cu 2 Se NPLs • CuSe NPLs show only 0.012% capacity decay per cycle after 1,000 cycles at 10 A g −1 Summary Copper selenides are promising anode materials for sodium-ion batteries (SIBs), owing to high electronic conductivity, rich phase diversity, and large theoretical capacity. However, their phase-dependent sodium-storage performances remain insufficiently defined. Herein, we report a phase-controlled synthesis of CuSe and Cu 2 Se nanoplates (NPLs) to directly compare their phase-dependent electrochemical behavior. When evaluated as SIB anodes, CuSe NPLs demonstrate superior rate capability and cycling stability relative to Cu 2 Se NPLs, delivering a specific capacity of 368.8 mAh g −1 at 20 A g −1 and maintaining 337.4 mAh g −1 at 10 A g −1 after 1,000 cycles with a capacity decay of only 0.012% per cycle. Operando X-ray diffraction and electrochemical kinetic analyses reveal that sodium storage in CuSe is mediated by coupled diffusion-controlled and pseudocapacitive processes. Collectively, these findings confirm that crystal phase decisively governs sodium-storage chemistry and kinetics in copper selenides and offer guidance for high-performance conversion-type anodes for next-generation SIBs. Download: Download high-res image (189KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）