JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Xuan Zhu,Yuan Gao,Jianan Hong,Entao Zhang,Yu Xie,Jia Mao,Chenyu Xu,Yanwei Zhang
The synergistic coupling of optical and thermal effects for the comprehensive utilization of solar energy has garnered increasing attention in recent research. In this work, the synergistic coupling of solar photo and thermal effects was realized using a non-noble metal Ni cocatalyst loaded with Mg and Al codoped SrTiO 3 . In the photothermal synergistic decomposition of pure water, the efficiencies of H 2 and O 2 reached 1.011 mmol·g −1 ·h −1 and 0.497 mmol·g −1 ·h −1 , respectively. The hydrogen yield was almost 2.7 times higher than that of pure photocatalysis. It was found that the introduction of NiOOH significantly enhanced the separation and migration of photogenerated carriers, along with the significant thermal effect. A series of variable temperature characterizations confirm that the thermal effect in sunlight can enhance light absorption and reduce the carrier transport impedance of material, which significantly improves carrier utilization and further promotes hydrogen generation. This study provides an effective idea for the design of solar non-noble metal catalysts for hydrogen production by utilizing the photothermal synergy strategy.
研究领域:
材料科学
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能源化学
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催化反应
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产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Haodong Zhang,Min Chen,Weiming Qian,Jianghao Zhang,Xueyan Chen,Xiaoxiao Qin,Minmin Liang,Changbin Zhang
The hydrogenation of CO2 to produce valuable chemicals through photocatalytic or photothermal technologies represents a viable path toward carbon neutrality. However, typical nanosemiconductor materials, such as TiO2, often exhibit limited activity, necessitating the optimization of their performance as a key research priority. Here, we demonstrate that the size of anatase TiO2 significantly influences its performance in the selective photocatalytic and photothermal reduction of CO2 to CO. The small-sized TiO2 (S-TiO2, 15 nm) exhibits a low CO yield of 32.7 μmol g–1 h–1 and shows almost no photothermal synergy. In contrast, the large-sized TiO2 (L-TiO2, 160 nm) demonstrates a high CO yield of 185.3 μmol g–1 h–1 and significant photothermal synergy, with the CO yield reaching 438.7 μmol g–1 h–1. We reveal that L-TiO2 is well-crystallized and has a higher conduction band position compared to the S-TiO2. This results in a higher charge separation efficiency and more effective photoexcited electrons for CO2 reduction. Additionally, the external heating primarily enhances the charge separation in L-TiO2, significantly improving the conversion of CO2 to CO. This work provides insights into the relationship between the structure and activity of TiO2 in photocatalytic and photothermal CO2 reduction.
研究领域:
材料科学
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环境科学
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化学工程
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2024
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IF 9.4
Danni Zeng,Tingzhe Shen,Yadong Hu,Fengjiao Liu,Ze Liu,Jun Song,Rongfeng Guan,Changjian Zhou
Photothermal synergistic catalysis is a novel technology that converts energy. In this study, ZnIn 2 S 4 with S-vacancy (ZIS-Vs) is combined with Nickel, Nickle Oxide and Carbon Nanofiber aggregates (Ni-NiO@CNFs) to create a multi-interface coupled photocatalyst with double Schottky barrier, double channel and mixed photothermal conversion effect. Theoretical calculation confirms that the Gibbs free energy (ΔG *H ) of the S-scheme heterojunction in the composite material is −0.07 eV, which is close to 0. This promotes the adsorption of H* and accelerates the formation of H 2 . Internal photothermal catalysis is achieved by visible-near infrared (Vis-NIR, RT) irradiation. The internal photothermal catalytic hydrogen production rate of the best sample (0.9Ni-NiO@CNFs/ZIS-Vs) is as high as 17.24 mmol·g −1 ·h −1 , and its photothermal conversion efficiency (η) is as high as 61.42 %. Its hydrogen production efficiency is 20.52 times that of ZIS-Vs (0.84 mmol·g −1 ·h −1 ) under visible light (Vis, RT) conditions. When the Vis-NIR light source is combined with external heating (75 ℃), the hydrogen production efficiency is further improved, and the hydrogen production efficiency (29.16 mmol·g −1 ·h −1 ) is 26.75 times that of ZIS-Vs (1.09 mmol·g −1 ·h −1 , Vis-NIR, RT). Further analysis shows that the increase in hydrogen production resulted from the apparent activation energy (Ea) of the catalyst decreasing from 16.7 kJ·mol −1 to 9.28 kJ·mol −1 . This study provides a valuable prototype for the design of an efficient photothermal synergistic catalytic system.
研究领域:
材料科学
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催化化学
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产品关联
DOI
PubMed
高影响因子
Environmental Science-Nano
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2021
·Vol. 8
·期 5
·1446-1455
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IF 8.131
Rumeng Zhang,Chao Li,Wei Liu,Yingping Huang,Bo Wang,Kemeng Xiao,Po Keung Wong,Liqun Ye
As an efficient green water disinfection technology, photothermal synergy sterilization has been paid more attention in recent years with its immeasurable advantages. The development of photocatalysts for efficient sterilization is currently an urgent need. In this manuscript, pure Ti3C2Tx is first studied as a photothermal synergy sterilization material and shows an excellent sterilization effect. The sterilization rate of Escherichia coli (E. coli) reaches 99.9% under visible infrared (vis-IR) light for 40 minutes. The peeling of the Al layer from Ti3AlC2 is the fundamental reason for improving the photothermal conversion ability, and photogenerated free radicals have also proved to be improved. The dilution spreading plate method, enzyme activity test, and leakage of cell contents confirmed the complete death of bacteria. Two aspects, photogenerated free radicals and photothermal synergy, were carried to illuminate the mechanism.
研究领域:
环境科学
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材料科学
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微生物学
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产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
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2022
·Vol. 46
·期 26
·12808-12813
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IF 3.925
Jianfeng Ban,Dang Wu,Junqiu Liao,Tiwen Xu,Lulu Pan
This study is aimed at investigating the photo-response performance of a polymeric material using a series of azobenzene liquid-crystal shape memory polyurethanes (DB-SMPn) with azobenzene-4,4′-dicarboxylic acid (ADA), N,N-bis(2-hydroxyethyl)isonicotinamine (BINA), and hexamethylene diisocyanate (HDI) as the main raw materials. The mole ratios of BINA and ADA were varied during the preparation of the different hard segment contents of DB-SMPn. The structure, thermal performance, and liquid-crystal properties of DB-SMPn were investigated, and the thermo- and photo-response shape memory performances of DB-SMPn were directly characterized via heating and ultraviolet light. The results indicated that the polymer exhibited excellent triple-shape memory and unique photo-thermo-synergy response shape memory characteristics. These characteristics provided a theoretical basis for the azobenzene liquid-crystal shape memory polyurethane materials, which are expected to have several new potential applications in robotics and smart devices.
研究领域:
材料科学
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高分子化学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Cleaner Production
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2022
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IF 11.072
Sihan Ma,Xian Luo,Guang Ran,Zonglang Zhou,Jun Xie,Yipeng Li,Xingyong Li,Jianghua Yan,Wangyu Cai,Lin Wang
The release of pollutants from bacterial pathogens in air or water, which causes a serious threat to human health and well-being. Traditional antibiotics have exhibited insufficient ability in combating bacteria owing to the emergence of drug-resistant bacteria. Hence, effective antibacterial candidates urgently need to be explored as an alternative for overcoming the antibiotic barrier. It is highly necessary to find an effective stable disinfection system with the nature of environmental-friendly, high activity and stability, convenient synthesis procedure, low energy, cleaner, and low economic consumption. Considering these aspects, optical strategy and chemical treatment bring convenience and advantages in bacterial inactivation. In this work, the bimetallic Cu–Bi alloy was explored using a simple one-pot solvothermal strategy. On the one hand, the bimetallic structure can prevent copper from oxidation to decrease potential secondary pollution activity caused by excessive release of copper ions , and maintain copper's highly biological activity . On the other hand, the as-prepared Cu–Bi alloy was employed to perform antibacterial applications. Hyperthermia is driven by near-infrared light and the introduction of ROS from Cu Fenton-like reaction that can effectively promote the death of bacteria, and perform a better antibacterial ability than that of single Ag + or Cu 2+ release, resulting in the significant growth inhibition of E. coli . Overall, the combination of the multiple disinfection ability of the Cu–Bi alloy, involving highly efficient ROS generation and effective photothermal performance, not only shows the potential in fighting against pathogenic bacteria but also provides an important insight for the exploration of antibacterial platforms based on the bimetallic materials.
研究领域:
材料科学
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微生物学
✓ 已验证
DOI
高影响因子
MOLECULES
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2022
·Vol. 27
·期 23
·8455
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IF 4.927
Hongping Xu,Junhong Ling,Han Zhao,Xinyi Xu,Xiao-kun Ouyang,Xiaoyong Song
Chemotherapy is a common method for tumor treatment. However, the non-specific distribution of chemotherapeutic drugs causes the death of normal cells. Nanocarriers, particularly mesoporous carriers, can be modified to achieve targeted and controlled drug release. In this study, mesoporous polydopamine (MPDA) was used as a carrier for the antitumor drug doxorubicin (DOX). To enhance the release efficiency of DOX in the tumor microenvironment, which contains high concentrations of glutathione (GSH), we used N,N-bis(acryloyl)cysteamine as a cross-linking agent to encapsulate the surface of MPDA with fucoidan (FU), producing MPDA-DOX@FU-SS. MPDA-DOX@FU-SS was characterized via transmission electron microscopy, thermogravimetric analysis, and X-ray photoelectron spectroscopy (XPS), and its antitumor efficacy in vitro was investigated. The optimal conditions for the preparation of MPDA were identified as pH 12 and 20 °C, and the optimal MPDA-to-FU ratio was 2:1. The DOX release rate reached 47.77% in an in vitro solution containing 10 mM GSH at pH 5.2. When combined with photothermal therapy, MPDA-DOX@FU-SS significantly inhibited the growth of HCT-116 cells. In conclusion, MPDA-DOX@FU-SS may serve as a novel, highly effective tumor suppressor that can achieve targeted drug release in the tumor microenvironment.Keywords:mesoporous polydopamine;antitumor;nanomedicine;photothermal synergistic chemotherapy
研究领域:
药理学
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生物材料学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Nano Materials
·
2025
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IF 5.5
Mingjian Ma,Jiangbo Pan,Jiaqi Wang,Yichang Jing,Yuan Fu,Yuan Shen,Di Wang,Chengyu Wang,Jian Li
Mold has long been a priority because of its potential threat to human health and reduction in the value of wood. Most of the traditional mold inhibitors have toxic effects on the environment, so developing safe and nontoxic mold inhibitors remains a challenge. In this study, tannic acid carbon dots (TA-CDs) were obtained via a straightforward one-step hydrothermal process. Subsequently, Cu2+ cross-linked tannic acid carbon dot nanoparticles (TA-CDs-Cu2+) were synthesized by introducing Cu2+ to TA-CDs at room temperature. The TA-CDs-Cu2+ can be firmly anchored on the surface of Aspergillus niger spores, triggering the rapid release of Cu2+ and TA-CDs in the localized acidic environment. The released TA-CDs triggered the conversion of Cu2+ to Cu+, destroying the cell wall and cell membrane structure of A. niger and reducing cellular esterase activity. In addition, TA-CDs-Cu2+ has been demonstrated to diminish the biomass of biofilms markedly. The use of TA-CDs-Cu2+ on poplar and birch wood has achieved mold protection class 0 at 20 mg of Cu/mL, which were found to exhibit unparalleled advantages as a mold inhibitor. Meanwhile, the TA-CDs-Cu2+ has a warming effect and has opened up avenues for the design of mold inhibition therapeutic agents and photothermal synergistic mold inhibition.
研究领域:
微生物学
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材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2022
·
IF 14.224
Xiaoyang Mu,Chao Li,Li Wang,Rumeng Zhang,Yingping Huang,Xiang Yu,Po Keung Wong,Liqun Ye
Solar-induced sterilization via photothermal synergy has attracted enormous attention due to its zero-energy consumption and the elimination of hazardous chemical disinfectant. Herein, we successfully synthesized a super biosafety Bi 2 O 2 Se with crossed nanosheet structure (Bi 2 O 2 Se-CN) for the sterilization of Escherichia coli ( E. coli ) via solar-induced photothermal synergistic effect. In comparison to bulk Bi 2 O 2 Se, the lower light reflection and more efficient photogenerated charge carrier separation under visible-infrared light irradiation resulted in the excellent sterilization effect of Bi 2 O 2 Se-CN, with a sterilization efficiency of 99.9% under the synergistic effect of light and heat. The crossed ultrathin nanosheet structure and suitable band gap width of Bi 2 O 2 Se-CN are fundamental reasons for its enhanced light absorption and charge carrier separation efficiency. Mechanistic studies showed that Bi 2 O 2 Se-CN can completely inactivate bacteria via generating a large amount of reactive oxygen species (•O 2 - , •OH, and 1 O 2 ) to attack the cell membrane, which further resulted in the reduced activity of intracellular enzymes and the leakage of intracellular contents. The biosafety property of Bi 2 O 2 Se-CN was confirmed by in vivo toxicological evaluation on the mice model. This work provided new ideas for the design of more efficient, energy-saving, biocompatible and environmental friendly solar water purification projects.
研究领域:
环境科学
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材料科学
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微生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Xiaolong Wu,Mingnv Guo,Ziqi Wang,Ruiming Fang,Jiang He,Zhongqing Yang
For the purpose of further improve the efficiency of photocatalytic CO 2 reduction and realize cascade utilization of the full solar spectrum, Bi 2 MoO 6 quantum dots were in situ deposited on the surface of carbonized pomelo peel (CPP) to form Bi 2 MoO 6 @CPP 0D/3D heterojunction catalyst. With a diameter of less than 10 nm, the quantum-limited field effects confirm the successful construction of Bi 2 MoO 6 quantum dot. The band structure of Bi 2 MoO 6 @CPP 0D/3D is beneficial heterojunction , which is able to utilize not only the UV–Vis band to generate photogenerated carriers that reduce CO 2 to CO mainly, but also the IR band of the solar spectrum to increase the temperature of photothermal catalytic reaction. The experiment indicated that the photogenerated electrons generated by Bi 2 MoO 6 @CPP 0D/3D heterojunction catalysts flowed through the interface C-O-Bi bridge and migrated to the surface of CPP, forming an electron interface. The interface C-O-Bi electron bridge enhanced the separation ability of photogenerated carriers, thereby increasing the CO yield to 50.77 μmol/(g·h). Further experiment showed that the oxygen-containing groups’ concentration of CPP were ameliorated by thermal activation and acid-base activation, which increased the concentration of interface C-O-Bi electron bridge between Bi 2 MoO 6 and CPP, finally promoting the CO yield to 66.94 μmol/(g·h), which is 12.3 times greater than that of bulk Bi 2 MoO 6 .
研究领域:
材料科学
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环境科学
·
光催化
✓ 已验证
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2024
·
IF 20.2
Zhen Sun,Maonan Ran,Guan Zhang
Solar-driven photocatalytic water splitting for hydrogen production is gaining dramatic interests, however, efficiencies are still not satisfied to make it technically applicable in large scale. Herein, we have observed unconventional high-temperature effects on the change of intrinsic photophysical properties of semiconductors, and demonstrated dual synergistic photothermal effects in promoting hydrogen evolution from water reduction and cellulose pyrolysis at high temperature with metal oxides catalysts. Particularly, Zn/ZnO species deposited TiO 2 (Zn-TiO 2 ) catalyst showcased exceptional thermal-assisted photocatalytic H 2 production from water reduction along with cellulose decomposition at 573 K with quasi apparent quantum efficiency of nearly 100 % under 365±10 nm irradiation and solar to hydrogen (STH) efficiency of 2.72 %. In situ spectroscopic characterizations at 573 K corroborated that the absorption spectrum of Zn-TiO 2 could be extended into the near-infrared region (beyond 1200 nm), and electron-hole pair recombination is curbed and migration of photogenerated charge carriers within the catalyst is remarkably promoted at high temperature. In addition, experimental analysis and molecular dynamics simulations unraveled the synergistic photo-assisted thermal effects for cellulose pyrolysis, and delineated potential pathways for cellulose conversion at high temperature under light irradiation. This work paves the way for efficient utilization of whole solar spectrum for achieving sustainable water splitting and biomass waste utilization.
研究领域:
材料科学
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能源化学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2024
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IF 15.7
Yanru Zhu,Zhijun Zhang,Jian Zhang,Shuangjiang Jiang,Zhe An,Hongyan Song,Xin Shu,Wei Xi,Lirong Zheng,Jing He
ABSTRACT Photosynthesis is a potential strategy to enable endergonic process that usually needs high-temperature in thermochemistry to supply the energy for inert-bond activation and/or strong endothermic reaction . The conversion of CO 2 into value-added C 2 -oxygenates is a promising process to realize artificial photosynthesis , but suffers from relatively lower efficiency due to complex multi-electron (≥ 10) transfer processes and sluggish kinetics of C–C coupling. This work proposes an all-new H 2 O-promoted strategy for efficient production of C 2 oxygenates from the concurrent activation and subsequent co-conversion of CO 2 with CH 4 under photo-thermal cooperation, in which photocatalytic H 2 O-splitting derived active hydrogen species for CO 2 activation, and concomitant active oxygen species for CH 4 activation. A formation rate of as high as 2.05 mmol g −1 h −1 for C 2 -oxygenates (CH 3 CHO and CH 3 CH 2 OH) in a selectivity of > 86% has been afforded over SrTiO x supported CuCo under 200 °C and ultraviolet-visible illumination. It has been revealed that SrTiO x drives photocatalytic H 2 O-splitting under the excitation primary from ultraviolet light, paired Cu I /Cu 0 sites promote the formation of *CH x O intermediate from CO 2 , Co sites conduct CH 4 -to-*CH 3 , and C–C coupling of *CH x O and *CH 3 on adjacent Cu-Co facilitates the generation of C 2 -oxygenates.
研究领域:
化学工程
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催化科学
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能源转换
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）