ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Zhenguo Wang,Ke Yu,Shijing Gong,Huibing Mao,Rong Huang,Ziqiang Zhu
Two-dimensional materials with unique physical and chemical properties have recently attracted widespread attention in the field of solar thermal conversion. However, affected by the Fresnel effect, traditional two-dimensional materials such as MXenes, graphene, transition metal disulfide often have relatively significant light reflection losses at the solid–liquid or gas interface. So how to improve the light absorption of the two-dimensional material performance has become a new challenge in photothermal conversion. Here, we use an improved thermal-injection method to uniformly grow Tricopper(I) Bismuth Sulfide (Cu3BiS3, CBS) on the surface of Ti3C2 nanosheets in a nonaqueous polar solvent environment. A three-dimensional nanoflower-nanosheet structure CBS-Ti3C2 for photothermal conversion has been constructed successfully. Owing to the excellent photothermal performance of Cu3BiS3 in the near-infrared region, the good thermal conductivity of Ti3C2, and the unique porous structure of the composite material, the composite achieves broadband absorption of light (more than 90% in the visible light region, more than 80% in the near-infrared region), which optical model and finite element simulation have theoretically verified. The composite material has obtained higher solar-to-heat conversion performance than similar material systems, and the steady-state temperature can reach 62.3 °C under 1 sun incident light intensity. CBS-Ti3C2 is expected to become a light-absorbing layer material for solar vapor generation devices due to its excellent light-to-heat conversion performance and good material flexibility. It still guarantees a reasonably high steam generation rate (1.32 kg·m–2·h–1) even with a thinner material thickness (0.48 mg·cm–2) and a comprehensive conversion efficiency higher than 90%. Besides, CBS-Ti3C2 also exhibits the characteristics of resisting surface salt accumulation, which is conducive to maintaining the long-lasting photothermal seawater evaporation process. The material’s electronic structure and the charge transfer process of the heterojunction interface have been studied with the first-principles calculation. The high light absorption performance and good thermal conductivity of the composite material are theoretically explained and supported.
研究领域:
材料科学
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能源科学
·
环境科学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2017
·Vol. 28
·期 23
·17772-17777
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IF 2.019
Li Jiajia,Han Xiuxun,Zhao Yun,Li Jian,Wang Min,Dong Chen,Hao Zhaomin
A novel Cu 3 BiS 3 nanorods film was prepared by a facile dip-coating method and its compositional, structural and optoelectronic properties were systematically characterized. A possible reaction mechanism of Cu 3 BiS 3 was also discussed briefly. Optical absorption investigation revealed that Cu 3 BiS 3 nanorods film has a direct band gap of 1.46 eV. Photoelectrochemistry of hydrazine free unannealed film displays a strong p-type photoresponse, as high as ∼1.0 × 10 −4 A/cm −2 at an applied potential of −0.5 V versus Ag/AgCl under the visible light irradiation. The photocurrent response measurement on the Cu 3 BiS 3 nanorods film sheds light on the potential application as a low-cost, high-reproducibility and high-yield nanorods preparing approach towards efficient Cu 3 BiS 3 photoelectricity and photovoltaic materials.
研究领域:
材料科学
·
光电子学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Physical Chemistry C
·
2018
·
IF 4.484
Guodong Yu,Aili Liu,Huile Jin,Yangzong Chen,Dewu Yin,Rui Huo,Shun Wang,Jichang Wang
Urchin-shaped Bi2S3/Cu2S/Cu3BiS3 nanocomposites were successfully prepared in this study through one-pot synthesis, which involved microwave-assisted simultaneous pyrolysis of two precursors. The as-prepared Bi2S3/Cu2S/Cu3BiS3 hybrids exhibit stronger absorption in the near-infrared regime than the individual components, i.e., Bi2S3, Cu2S, and Cu3BiS3. The photothermal conversion efficiency (η) of Bi2S3/Cu2S/Cu3BiS3 composites can even reach 43.8%, which is significantly higher than that seen with most of the transition metal chalcogenide materials. The excellent photothermal performance of Bi2S3/Cu2S/Cu3BiS3 hybrids is likely arising from its unique urchin-like structure, in which needle-like Bi2S3/Cu2S nanocomposites grow from the core of Cu3BiS3. The copresence of Bi2S3 and Cu2S also leads this newly synthesized composite to produce high contrast for X-ray computer tomography imaging, an important property required for a great potential application in theranostic cancer treatment.
研究领域:
材料科学
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医学影像
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肿瘤学
✓ 已验证
产品关联
DOI
高影响因子
PHYSICA SCRIPTA
·
2024
·Vol. 100
·期 1
·015948
·
IF 2.6
Fucheng Yu,Zengguang Huang,Jinghong Zhang,Sihua Zhong
Cu3BiS3 has been considered as an attractive photovoltaic material due to its suitable bandgap, excellent photoelectric properties, abundant component elements and low toxicity. However, most of the reported Cu3BiS3 solar cells contain toxic components in other functioning layers such as CdS in electron-transport layers (ETLs). In this study, the Cu3BiS3 thin films were prepared by spin-coating method. We find that the CuCl concentration in precursor solutions has influences on both the optical bandgap and grain size of the Cu3BiS3 thin films, thus affecting the performance of solar cells. The optimal CuCl concentration is 0.91 M. Besides, Al doped TiO2 (ATO) and MoOx films are employed as ETLs and hole-transport layers (HTLs) respectively, constructing a totally non-toxic thin film solar cell. Moreover, it is demonstrated that the ratio (RAl:Ti) of Al source (Aluminum nitrate nonahydrate) to Ti source [Titanium diisopropoxide bis(acetylacetonate)] in the precursor solution of ATO and the thickness of MoOx have significant influences on solar cells. Moderate Al doping in ATO, e.g. RAl:Ti=1:50, can produce oxygen vacancies and accelerate the interfacial charge transfer, thus resulting in the increased short-circuit current density and fill factor. With the optimized Cu3BiS3 absorber, ETL and HTL, improved cell performances are observed comparted to the spin-coated Cu3BiS3 counterparts with CdS as ETLs in literature.
研究领域:
材料科学
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能源科学
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2018
·Vol. 42
·期 6
·4114-4120
·
IF 3.201
Jiajia Li,Xiuxun Han,Min Wang,Yun Zhao,Chen Dong
Highly active and durable hydrogen evolution reaction (HER) catalysts are required for the low-cost and high-yield generation of clean energy from water splitting. Herein, a Cu3BiS3/TiO2 (C@T) heterojunction film is constructed by a facile dip-coating method for the synthesis of Cu3BiS3 nanorods on a TiO2 film. The heterojunction film is used as a catalyst in water splitting which exhibits a higher photoelectrochemical (PEC) performance and electrocatalytic activity than the respective pure Cu3BiS3 nanorods counterpart. Experimental results confirm that the PEC performance of the C@T heterojunction film displays a strong photoresponse of as high as ∼1.5 × 10−4 A cm−2 at an applied potential of −0.5 V vs. Ag/AgCl under visible light irradiation. What's more, the as-prepared C@T film shows the best electrocatalytic performance with an onset overpotential of 150 mV, a low Tafel slope of 42.67 mV dec−1, a large current density of 10.8 mA cm−2 at an overpotential of 220 mV, and a remarkable cycling stability. The enhanced PEC performance is associated with the formation of a heterojunction structure at the interface between TiO2 and Cu3BiS3, which facilitates light absorption and separation of photogenerated charge carriers. The growth of Cu3BiS3 nanorods on a TiO2 film modified the electronic structure and increased the electrochemical area, and thus is responsible for enhanced catalytic activity. Benefitting from its scalable preparation and properties, the Cu3BiS3 nanorods/TiO2 heterojunction film is indeed a promising catalyst for hydrogen evolution reaction.
研究领域:
材料科学
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能源化学
✓ 已验证
产品关联
DOI
高影响因子
BIOMATERIALS
·
2016
·
IF 8.387
Ang Li,Xiang Li,Xujiang Yu,Wei Li,Ruyi Zhao,Xiao An,Daxiang Cui,Xiaoyuan Chen,Wanwan Li
In this work, we report a successful synthesis of copper bismuth sulfide nanorods (NRs) with broad and strong photoabsorption ranging from ultraviolet (UV) to near-infrared (NIR) wavelengths, which can be used as a 1064 nm-laser-driven photothermal agent with the photothermal conversion efficiency of 40.7%, noticeably higher than most of the reported PTT agents working in NIR-II window. The as-prepared PEGylated Cu 3 BiS 3 NRs were used as photoacoustic imaging (PAI) and CT imaging agents due to their strong NIR absorption and large X-ray attenuation coefficient of bismuth. We are the first to demonstrate that a small quantity of PEGylated Cu 3 BiS 3 NRs in tumors can concentrate radiation energy and trigger mild PTT under NIR-II irradiation and thus, these particles could be used as a novel, synergistic thermoradiotheraputic agent that enhances the efficacy of radiotherapy .
研究领域:
生物医学工程
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肿瘤学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2017
·
IF 4.784
Jiajia Li,Xiuxun Han,Yun Zhao,Jian Li,Min Wang,Chen Dong
A large–grain and highly crystalline Cu 3 BiS 3 thin film is successfully prepared by a dimethyl sulfoxide (DMSO)–based solution coating process . Without involving post sulfurization , Cu 3 BiS 3 absorber with grain size of ~ 1 µm has been achieved via a short-time drying of spin–coated precursor film on a hot plate at relatively low temperatures (< 300 °C). Our Cu 3 BiS 3 film exhibits a direct band gap of 1.47 eV with high absorption coefficients (~ 7 × 10 4 cm −1 ). Hall effect measurements reveal a p–type conductivity with hole concentration of ~ 10 16 cm −3 and mobility of 52.83 cm 2 /(V s). Moreover, an initial Cu 3 BiS 3 thin film solar cell with the device structure of glass/Mo/Cu 3 BiS 3 /CdS/ZnO/ITO/Al is fabricated, achieving a definite conversion efficiency of 0.17%. The mild preparation condition promises great potential of current method in realizing Cu 3 BiS 3 solar cells on temperature-sensitive substrates such as flexible polymer through an energy efficient way. The Cu 3 BiS 3 has thus been presented as a promising absorber material for solar cell applications.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2020
·Vol. 45
·期 3
·1231-1239
·
IF 3.288
Jiajia Li,Yun Zhao,Xiuxun Han,DingShu Xiao
The design of highly efficient and stable photoelectrocatalysts for the hydrogen evolution reaction (HER) is critical to the large-scale application of clean hydrogen energy. Here, Cu3BiS3 nanoflowers (NFs) with photoelectrochemical (PEC) activity were synthesized via a solvothermal method under mild and low-toxic reaction conditions, and the Au nanoparticles (Au NPs) were loaded onto Cu3BiS3 NFs to improve the photoelectrocatalytic performance. Compared with pure Cu3BiS3 NFs, Au-Cu3BiS3 composites (A@C) exhibit a much higher photocurrent density (2 × 10−4 A cm−2) and greatly enhanced photoelectrocatalytic activity (2.31 μmol h−1), which are attributed to the enhancement in electron capture abilities, active sites and visible light absorption from the localized surface plasmon resonance effect (LSPR) of Au NPs. Furthermore, the excellent conductivity of Au NPs can effectively accelerate the separation and collection of photogenerated carriers. This work highlights a feasible strategy to improve the PEC activity of the Cu3BiS3 photoelectrocatalyst, and confirms the great potential of Au-Cu3BiS3 composites for hydrogen evolution applications.
研究领域:
材料科学
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能源科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2026
·
IF 5.8
Qinyang Lin,Huanhuan Tan,Wenrun Li,Yong Li,Juan Li,Yonghong Ran,Qiuping Wang,Yazhen Zhao,Yuhui Hao
Radiotherapy is an essential method for breast cancer treatment, primarily characterized by directly or indirectly damaging tumor cells. However, owing to the high DNA repair mechanism of tumor cells, the therapeutic efficacy of radiotherapy is frequently affected. To address this dilemma, it is of great significance to develop effective radiosensitizers. Herein, we design DSF/Cu3BiS3@SS nanoparticles (DCBSS NPs) to potentiate radiotherapy efficacy for breast cancer via amplification of cuproptosis and apoptosis. This material exhibits several key features: (1) In the tumor microenvironment, DCBSS NPs have pH-responsive properties. (2) Cu2+ leads to the depletion of glutathione, which facilitates the reduction of Cu2+ to Cu+, collectively inducing intracellular Cu+ overload and triggering cuproptosis. (3) The resultant Cu+ catalyzes Fenton-like reactions, generating abundant reactive oxygen species to intensify oxidative stress. (4) The high-Z (Bi) element can enhance radiation energy deposition, effectively induce DNA damage, and further arrest the cell cycle at the radiosensitive G2/M phase, and Cu2+ reacts with DSF to form CuET, together ultimately amplifying apoptosis. In vivo, DCBSS NPs exhibit effective tumor accumulation via the enhanced permeability and retention effect and achieve an excellent antitumor effect when combined with radiotherapy, with excellent biosafety. This study demonstrates a robust radiosensitization strategy for breast cancer but also introduces an innovative way for cancer therapy based on the regulation of cuproptosis and apoptosis pathways.
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Cuimei Liu,Sihang Cheng,Xue Zhou,Lu Li,Chungang Wang,Lingyu Zhang
Photothermal therapy (PTT) is minimally invasive, precisely controlled, and therapeutically effective treatment method. However, its efficacy is limited by the overexpression of heat shock proteins (HSP), which leads to cellular thermal blockade. Targeting mitochondria with PTT can enhance anticancer efficacy, as mitochondria encode genes related to HSP and provide energy for their production. Nevertheless, mitochondrial dynamics confer resistance to damage from external stimuli. Therefore, disrupting the balance of mitochondrial dynamics is essential to impede HSP production. Herein, we synthesized degradable Cu 3 BiS 3 (CBS) nanosheets (NSs) with one face modified by carboxylated triphenylphosphonium (TPP) to target mitochondria. This modification increases the production of exogenous reactive oxygen species (ROS) and induces the overexpression of dynamin-related protein 1 (Drp1), disrupting mitochondrial dynamic homeostasis. The other face was modified with carboxylated β-cyclodextrin (CD) to load the glycolysis inhibitor (2-deoxyglucose, 2DG), thereby reducing adenosine triphosphate (ATP) production in the extra-mitochondrial space, as glycolysis also occurs in the cytoplasm. The resulting TPP-CBS-2DG Janus NSs (JNSs) not only disrupt mitochondrial energy production, leading to cell starvation, but also inhibit HSP production. Consequently, TPP-CBS-2DG JNSs can enhance tumor thermal sensitivity in PTT, improving its efficacy. This work holds great promise for overcoming tumor heat resistance in PTT and provides a feasible method for fabricating selectively modified multifunctional NSs.
研究领域:
癌症治疗
·
纳米技术
·
生物化学
·
分子生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）