JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2025
·Vol. 36
·期 19
·1-15
·
IF 2.8
Li Zi-Yan,Li Ya-Jun,Li Wei,Wang Ze-Hong,Zhao Zhao-Ye,Zhou Ting-Ting,Huang Yi-Rui,Wu Xiang-Feng,Zhang Peng-Liang,Zhen Zi-Yan,Ci Li-Jie
In this study, a photoelectrochemical sensor for the detection of glucose was developed by combining the unique properties of NH 2 -MIL-125 and Ti 3 C 2 film. The relationship between the microstructure of the samples and their performance in glucose detection was investigated. Experimental results demonstrated a linear decrease in the differential pulse voltammetry current of the Ti 3 C 2 /NH 2 -MIL-125-3 photoelectrochemical sensor with increasing glucose concentration. Below 200 μM, the relationship between DPV current and glucose concentration was found to be: I (mA) = − 3.86667 × 10 –8 ·c g (μM) + 3.66 × 10 –4 (c g denoted as the concentration of glucose). Above 200 μM, the relationship was: I (mA) = − 4.03049 × 10 –8 ·c g (μM) + 3.68268 × 10 –4 . Density functional theory calculations were in agreement with the experimental data. The Ti 3 C 2 /NH 2 -MIL-125-3 photoelectrochemical sensor demonstrates exceptional glucose detection capability. This technology has the potential to advance the development of MXenes/MOFs-based photoelectrochemical biosensors.
研究领域:
生物传感
·
材料科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2024
·
IF 12.2
Xuanhao Liang,Guangyuan Chen,Hao Zhang,Ling Zhang,Tao Duan,Lin Zhu
Ti-based MOFs exhibit ultra-high stability in radioactive waste gases containing nitrogen oxides (NO X ) and are effective in capturing radioactive iodine. In this study, NH 2 -MIL-125 was synthesized via a one-pot solvothermal method and its adsorption performance for iodine was investigated using batch adsorption experiments, the stability of materials was tested by simulating post-processing conditions. The results indicated that NH 2 -MIL-125 had a maximum iodine adsorption capacity of 1.61 g/g at 75 ℃ and reached adsorption equilibrium within 60 min, and the adsorption capacity of methyl iodine reached 776.9 mg/g. The material also exhibited excellent stability and iodine adsorption performance in the presence of NO X . After soaking in NO 2 for 24 h, its structure remained stable and the adsorption capacity for iodine remained at 231.5 mg/g. The excellent co-adsorption performance of NH 2 -MIL-125 on iodine and NO X was attributed to the synergistic effects of Ti-OH groups and amino functional groups. These findings provide a reference for the capture of radioactive iodine and also demonstrate the potential of NH 2 -MIL-125 for iodine capture during spent fuel reprocessing .
研究领域:
材料科学
·
环境科学
·
核能工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Catalysts
·
2020
·Vol. 11
·期 1
·24
·
IF 3.52
Juan Du,Jiaxin Zhang,Tingyu Yang,Renming Liu,Zhiyi Li,Dandan Wang,Tong Zhou,Yucun Liu,Chunbo Liu,Guangbo Che
The BiOI/NH2-MIL-125(Ti) composite photocatalyst with excellent photocatalytic performance was prepared by the solvothermal method. For the BiOI/NH2-MIL-125(Ti) (BNMT) system, the contents of NH2-MIL-125(Ti) in BNMT-4, BNMT-5, BNMT-7, BNMT-9, and BNMT-10 were 4 wt %, 5 wt %, 7 wt %, 9 wt %, and 10 wt %, respectively. XRD, XPS, SEM, and TEM characterizations indicated that BiOI/NH2-MIL-125(Ti) was successfully prepared. Brunauer, Emmett, and Teller (BET) and UV–vis diffuse reflectance spectra photoelectrochemical analysis indicated that BNMT-9 can make the specific surface area and photo absorption region larger than BiOI. In addition, the separation efficiency of photogenerated carriers was improved, and the recombination efficiency was reduced. The degradation percentages of Rhodamine B (RhB) and p-chlorophenol (P-CP) reached 99% and 90% over BNMT-9 under visible light irradiation. Additionally, the catalysts had high stability. The results of the active spices trapping experiments test indicated that h+was the main active species. The possible degradation mechanism was proposed.Keywords:photocatalysis;BiOI;NH2-MIL-125(Ti);organic pollutants
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY
·
2023
·
IF 4.6
Jun-Qing Ye,Yan-Zi Dai,Shu-Ying Xu,Pin-Xi Wang,Zhong-Hua Sun,Jun-Feng Qian,Qian Liang,Ming-Yang He,Qun Chen
The construction of efficient photocatalysts for water splitting to enable H2 evolution is pivotal to alleviate energy issues and environmental concerns. In this work, carbon dots (CDs) were prepared by employing “green solvent” ionic liquids as carbon sources and then combined with Pt/NH2-MIL-125, resulting in the emergence of a high-efficiency photocatalyst termed CDs-Pt/NH2-MIL-125 for the first time. This composite photocatalyst exhibited outstanding photocatalytic activity in H2 production under visible light irradiation. Notably, the H2 production rate of CDs100-Pt/NH2-MIL-125 reaches up to 951.4 μmol/g/h, which was 3.1 times that of Pt/NH2-MIL-125. The characterization results indicate that CDs and Pt uniformly dispersed on the surface of NH2-MIL-125 and fabricated a synergistic compact structure, providing a high BET surface area (985 m2 g–1) and a suitable band gap. Furthermore, the distinctive embeddable-dispersed CDs and Pt, as dual cocatalyst, can harvest light and facilitate the transfer of photogenerated electrons, thereby significantly augmenting the exploitation of visible light. The plausible mechanism of photocatalytic H2 evolution over the CDs-Pt/NH2-MIL-125 catalyst was also discussed. This work introduces a promising strategy for designing high-performance CDs-MOFs-based photocatalysts, an innovative step toward achieving efficient photocatalytic water splitting for H2 production.
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
RSC Advances
·
2017
·Vol. 7
·期 68
·42819-42825
·
IF 3.108
Yanghe Fu,Huan Yang,Rongfei Du,Gaomei Tu,Chunhui Xu,Fumin Zhang,Maohong Fan,Weidong Zhu
Co-doped NH2-MIL-125(Ti) catalysts [Co/NH2-MIL-125(Ti)] are developed for the photocatalytic reduction of CO2 upon visible-light irradiation. Compared with NH2-MIL-125(Ti), Co/NH2-MIL-125(Ti) exhibits a significantly enhanced activity in CO2 reduction, due to the fact that the doping of Co nanoparticles onto NH2-MIL-125(Ti) can promote the visible-light harvesting and electron transfer. In addition, when benzylic alcohols as electron donors, instead of triethanolamine (TEOA) which is often used as a sacrificial agent, are added into the reaction system, Co/NH2-MIL-125(Ti) can simultaneously catalyze CO2 reduction to formic acid (HCOOH) and the selective oxidation of the benzylic alcohols to the corresponding aldehydes, making the proposed process more economical and environment-friendly.
研究领域:
材料科学
·
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2014
·
IF 3.84
Ying Zhang,Bo Fu,Kuixue Liu,Yupeng Zhang,Xu Li,Shanpeng Wen,Yu Chen,Shengping Ruan
FeCl 3 -NH 2 -MIL-125(Ti) with different FeCl 3 content was prepared and characterized by XRD , SEM and XPS . The humidity sensing properties of FeCl 3 -NH 2 -MIL-125(Ti) have been investigated. Compared with NH 2 -MIL-125(Ti), FeCl 3 -NH 2 -MIL-125(Ti) was more effective in the humidity sensing. The optimal mixing ratio was FeCl 3 -NH 2 -MIL-125(Ti) (8 wt%), which exhibited the best linearity. The impedance of FeCl 3 -NH 2 -MIL-125(Ti) (8 wt%) decreases by almost three orders of magnitude in the range of 11%-95% RH. The response time and recovery time of the humidity sensor by FeCl 3 -NH 2 -MIL-125(Ti) (8 wt%) are 11 s and 86 s respectively. These results indicate the potential application of FeCl 3 -NH 2 -MIL-125(Ti) in humidity sensors.
研究领域:
材料科学
·
传感器技术
·
纳米材料
·
功能材料
✓ 已验证
DOI
高影响因子
CHEMOSPHERE
·
2022
·
IF 8.943
Cheng Cheng,Dongyun Chen,Najun Li,Hua Li,Qingfeng Xu,Jinhui He,Jianmei Lu
This paper reports the application of NH 2 -MIL-125(Ti) modified carbon nitride C v -C 3 N 4 with carbon vacancies in the removal of NO. We performed a series of characterizations of the complex and compared various ratios with the individual components. The results of UV spectrum analysis show that the composite's range of light absorption expanded due to the modification of Ti metal–organic framework. Furthermore, the results of photocurrent and electrical impedance indicate the compound has a better ability to generate and transfer electrons . The increase in the compound's NO removal efficiency (up to 63%) indicates that MOF has a positive effect on C v -C 3 N 4 modification—a good method for photocatalysis . Moreover, the compound can promote photocatalysis in a favorable direction.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Meidan Que,Peihong Ma,Yabo Wang,Yanbo Sun,Xiangwei Bai,Lili Gao,Jin Chen,Jian Wei,Hui Li
NH 2 -MIL-125 with abundant porosity and specific interactions with CO 2 molecules, has been demonstrate great potential in the field of photocatalytic CO 2 reduction. However, conventional NH 2 -MIL-125 and their composites much lower CO 2 photoreduction efficiency in aerobic environments because of the O 2 competition. To circumvent the issue, this study modifies NH 2 -MIL-125 through crystal facet engineering to enhance its selective CO 2 adsorption and photocatalytic efficiency in the environment of impurity CO 2 . The results indicate that NH 2 -MIL-125 featuring (101) crystal planes can sustain elevated catalytic activity in low-concentration CO 2 environments. In a pure CO 2 atmosphere, NM-5 achieves a CO production rate of 159.66 μmol·g −1 after 4 h, 1.85 times greater than the unmodified NH 2 -MIL-125. Under conditions simulating flue gas (5 % CO 2 ) and ultra-low CO 2 concentrations (0.15 % CO 2 ), NM-5 maintains CO production rates of 3.18 μmol·g −1 and 0.95 μmol·g −1 , respectively, representing 1.63 and 1.73 times the production rates of NM. Furthermore, theoretical calculations indicate that CO 2 exhibits a higher adsorption energy (−1.34 eV) compared to N 2 and O 2 (−0.67 eV and −0.15 eV) on the (101) crystal plane, which reveals the preferential adsorption of CO 2 on the (101) crystal planes. This study involves a novel strategy for optimizing MOFs crystal planes and provides significant insights into achieving efficient photocatalytic CO 2 reduction under aerobic conditions.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Guanglai Mo,Linxi Wang,Jianhong Luo
It is a challenge to achieve efficient photocatalytic activity of pure MOFs. Herein, the defective NH 2 -MIL-125(Ti) with adjustable linker vacancy level was successfully created by thermal treatment. The band gaps of samples decreased and the more Ti-O clusters on the surface of the samples can be achieved as the time of thermal treatment increased from 0 to 500 min, both of which facilitated the photocatalytic activity for the reduction of Cr(VI). Moreover, the ligands from the surface to the inside of the samples were successively decarboxylated, resulting in the declined specific surface area and the increased proportion of mesoporous and the defect level. The moderate defect level in NH 2 -MIL-125(Ti) can be obtained as the time of thermal treatment was 300 min, which facilitated the separation of photogenerated charges, contributing to the highest photocatalytic activity for reduction of Cr(VI), which was 9.2 times than that of the initial MOFs. However, the excessive linker vacancy defect level in NH 2 -MIL-125(Ti) may result in the seriously affected crystal structure and the retarded separation of photogenerated charges.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2025
·
IF 8.3
Jun-Qing Ye,Bin Cheng,Yunfei Bu,Jun-Feng Qian,Qian Liang,Ming-Yang He,Qun Chen
The development of high-efficiency photocatalysts for water splitting to hydrogen (H 2 ) is crucial for alleviating energy crisis and environmental problems. In this study, a novel type-II ternary heterojunction photocatalyst, CDs/NH 2 -MIL-125 (Ti)/Cu 2 O, was fabricated through the integration of NH 2 -MIL-125 (Ti) with Cu 2 O and carbon dots (CDs), exhibited excellent photocatalytic H 2 production rate of 12817.1 μmol/g/h with apparent quantum efficiency (AQE) of 17.13 % under visible light irradiation. Characterization revealed a uniform and dense structural integration with a high Brunauer-Emmett-Teller (BET) surface area of 275.9 m 2 g −1 and a suitable energy band gap of 2.18 eV. Furthermore, the heterostructures promoted efficient photo-generated carrier separation and enhanced reduction capabilities . Notably, CDs, serving as cocatalysts or electron acceptors, improved visible light utilization and electron migration, significantly boosting H 2 production. Insights from electron spin resonance (ESR) and density functional theory (DFT) calculations supported the migration mechanisms of electrons. This work presents a significant advance in photocatalytic technology for sustainable energy by designing high-performance CDs-modified heterojunction photocatalysts.
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
Journal of Water Process Engineering
·
2022
·
IF 7.34
JongNam Choe,JongMin Ji,MyongBok Kim,JuHyon Yu,JongYol Ri,KyongSu Ri,HyonIl Kim
In this paper, a novel hydrophilic composite polyethersulfone (PES) ultrafiltration membrane was prepared by blending sunlight response photocatalyst NH 2 -MIL-125 via the phase inversion method. The physical-chemistry performance of membrane was carried out by XRD, FTIR, UV-VIS/DRS, contact angle, and cross-section SEM images. The separation ability, anti-fouling ability, and self-cleaning efficiency of ultrafiltration membrane were analyzed by ultrafiltration experiment using the congo red solution. The results indicate that fouling resistance and the flux recovery ratio of ultrafiltration membrane is significantly improved, and it has higher solar response energy. There was no significant change in the rejection ratio of pollutants before and after illumination. For the pristine PES membrane and the 0.5% NH 2 -MIL-125/PES nanocomposite membrane, the water flux recovery ratio (FRR) could increase from 37.84% to 77.09%, and the R r could increase from 22.22% to 44.09%, and the R ir could decrease from 67.11% to 47.09%. In a conclusion, the addition of NH 2 -MIL-125 at a low concentration could result in membranes with more pure water flux, better rejection, and good fouling resistance compared to the unfilled PES membrane.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Yong Li,Xinyue Yang,Mengyao Wang,Deyun Yue,Jun Wu,Haojie Song
The pollutants present in wastewater can cause structural damage to evaporators, thereby reducing their evaporation efficiency and hindering the application of solar-driven water evaporation technologies. Here, the TiO 2 -based evaporator (CPM-Air) with highly efficient photodegradation and solar-powered water evaporation performance for simultaneous freshwater production and decontamination was prepared by pyrolysis NH 2 -MIL-125(Ti) grown on the surface of Carbon Felt (CF). The evaporation rate of CPM-Air evaporator reached 2.21 kg m -2 h −1 under 1.0 kW/m 2 , and high solar-vapor conversion efficiency of 102.20 %. Meanwhile, the Anatase TiO 2 obtained by carbonized NH 2 -MIL-125 (Ti) has more active sites for removal pollutants. CF as the catalytic promoter to accelerate electron transport, and improve the photogenerated electron-hole separation efficiency. The photothermal-photocatalytic synergy removal efficiency of high concentration (50 mg/L) CIP was 2 times higher than photocatalytic only. In addition, the CPM-Air evaporator has high water evaporation rate in different harsh environments, the 99.9 % of metal ions removal and excellent salt resistance. More importantly, the growth experiments on soybean indicated that the products of photothermal-photocatalytic synergy degradation CIP of CPM-Air evaporator was non-biotoxic. This study provides valuable insights into the potential of photothermal-photocatalytic synergy for sustainable water production.
研究领域:
环境科学
·
材料科学
·
水资源管理
✓ 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）