JOURNAL OF HAZARDOUS MATERIALS
·
2020
·
IF 9.038
Shi-Wen Lv,Jing-Min Liu,Ning Zhao,Chun-Yang Li,Zhi-Hao Wang,Shuo Wang
Nowadays, designing highly active photocatalysts for pollutant degradation under visible light still remains a challenging problem. Herein, a novel benzothiadiazole functionalized Co-doped MOF-based photocatalyst with electron deficient unit was first synthesized via a feasible step-by-step assembly strategy. Benzothiadiazole, as typical electron deficient group, could effectively promote the separation and transfer of photoinduced charge carriers. The implantation of Co ion could be served as an effective mediator to further facilitate the charge transfer through a Co 3+ /Co 2+ redox pathway. Interestingly, the as-synthesized Co-MIL-53-NH-BT exhibited significantly enhanced photocatalytic degradation capacity for BPA and OFX under visible light irradiation, with removal efficiency as high as 99.9 % and 99.8 % within 120 min. TOC analysis suggested that majority of contaminants had been degraded into CO 2 and H 2 O. The important parameters influencing the photocatalytic activity were investigated, and the kinetics study was also conducted. The possible degradation pathways and the possible photocatalytic mechanism were proposed. More importantly, the as-synthesized Co-MIL-53-NH-BT showed good reusability, stability as well as universal applicability. To sum up, current work not only developed an efficient and visible-light active photocatalyst for treating organic-contaminated wastewater, but also afforded some novel insight into the utilization of benzothiadiazole in MOF-based photocatalyst towards improving photocatalytic activity.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Lin Lv,Hongmei Liu,Lei Wang,Sikai Wang,Yue Li,Guoqi Zhang,Yan Zhao
In this study, an innovative magnetic solid-phase extraction adsorbent based on metal-organic framework UiO-66-NH 2 functionalized polydopamine-modified magnetic multi-walled carbon nanotubes (Fe 3 O 4 @MWCNTs@PDA@UiO-66-NH 2 ) was developed for the selective extraction of trace amounts of quinolones (QNs) from milk and honey. Under optimal conditions, when coupled with ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS), the developed approach demonstrated excellent linearity in the concentration range of 0.1–100 μg kg −1 (R 2 ≥ 0.9916). The recoveries for sixteen QNs ranged from 72.4 % to 108.9 %, with relative standard deviations less than 9.40 %. The limits of detection were 0.012–0.450 μg kg −1 for milk and 0.023–0.690 μg kg −1 for honey. Finally, the method was successfully applied to the quantification of QNs in milk and honey samples.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Chen Chen,Jianhao Qiu,Guanglu Xia,Lu Zhang,Yixin Li,Biyao Fang,Meng Liu,Jianfeng Yao
Utilizing metal–organic frameworks as templates to synthesize photocatalysts has garnered increasing attention thanks to their substantial advantages. In this study, Cu-doped ZnIn 2 S 4 with hollow tubular structures was ingeniously synthesized using MIL-68-NH 2 as a template for photocatalytic H 2 O 2 production in ambient air and pure water under visible light. The hollow tubular structures promote light penetration and reflection, furnish substantial accessible reactive sites and accelerate the diffusion of reactants and products. Cu doping notably varies the band configuration of ZnIn 2 S 4 , resulting in a narrower bandgap and a lower conduction band potential. Their cooperative effects enable a respectable H 2 O 2 production from oxygen reduction reactions. The hollow tubular ZnIn 2 S 4 and corresponding Cu-doped counterpart achieved high H 2 O 2 yields of 1153 and 1616 μmol·L −1 , respectively, 3.6 and 5.1 times-increase compared with that of ordinary ZnIn 2 S 4 prepared without MIL-68-NH 2 . This work would provide a new perspective on ZnIn 2 S 4 -based photocatalysts and provoke the study on the green synthesis of H 2 O 2 .
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Zhiqiang Guo,Xinmiao Wu,Juanjuan Meng,Xinxin Li,Yuan Li,Liangliang Hu
MIL-101(Fe) has received more and more attention in wastewater treatment, and how to further improve its stability and sorption capacity has become a research focus. In this study, metal Mg was used to dope MIL-101(Fe) to construct Mg@MIL-101(Fe) with bimetallic sites, which was then mixed with NH 2 -MIL-125(Ti) to successfully fabricate Mg@MIL-101(Fe)/NH 2 -MIL-125(Ti) (MOM) bis-MIL composites. MOM not only contains a large number of sorption sites but also exhibits excellent stability and reusability, realizing efficient sorption of Pb(II) from aqueous solution. In addition, the sorption performance and mechanism of Pb(II) on MOM were investigated by the characterizations of SEM, BET, TG, XRD, FTIR and XPS, as well as the kinetic and thermodynamic analyses. The sorption of Pb(II) on MOM is in accordance with the Langmuir isothermal model and pseudo-second-order kinetic model. The maximum sorption capacity of Pb(II) on MOM derived from the Langmuir model fitting is 320.941 mg·g −1 . The sorption of Pb(II) on MOM is strongly affected by pH, but not by ionic strength, which indicates that MOM has good resistance to salt interferences. The strong complexation of carboxyl, hydroxyl and amino functional groups with Pb(II) is the main sorption mechanism of Pb(II) on MOM, and electrostatic interaction and ion exchange also contribute to the sorption. In conclusion, MOM has strong practical application prospects in the treatment of Pb(II)-containing wastewater.
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Qianxun Liu,Jiawei Ding,Chaowei Wang,Hao Fu,Xuetong Yang,Sitao Zhu,Hongyu Zhao,Yang Hu
MNA@DE composites were fabricated via in situ growth with high BTA loading capacity. MNA@DE composites were fabricated via in situ growth with high BTA loading capacity. • BTA-MNA@DE-M showed excellent corrosion-inhibition performance in simulated mine leach liquor. • MNA@DE exhibited pH-responsive BTA release for sustained inhibition of carbon steel corrosion. To address the susceptibility of carbon steel rock bolts to corrosion in complex mine environments and the limited long-term protection provided by conventional corrosion inhibitors, MIL-53-NH 2 (Al)@diatomite composites were prepared via in situ hydrothermal growth. The corrosion-inhibition performance of the benzotriazole (BTA)-loaded composites for carbon steel rock bolts in simulated mine leach liquor was systematically investigated. MNA@DE exhibited a considerably higher BTA adsorption capacity than pristine diatomite, with MNA@DE–H showing the highest value (134.48 mg g −1 ) at pH 5.0. Electrochemical measurements indicated that 0.10 wt% BTA-MNA@DE-M exhibited the best corrosion-inhibition performance, with a corrosion current density of 1.76 μA cm −2 and a polarization-based inhibition efficiency of 82.94%. The R ct -based inhibition efficiency increased from 20.77% to 87.56% over 168 h, indicating that the corrosion-inhibition performance of the material steadily improved with increasing of immersion time. Mechanistic analysis revealed that under weakly acidic conditions, hydrogen bonding and cation–π interactions between the surface - NH 3 + groups in the composites and BTA facilitated the efficient loading and immobilization of BTA. In a weakly alkaline simulated mine leach liquor, BTA molecules were slowly released because of weaker interactions between the carrier and BTA. The released BTA was subsequently adsorbed on the carbon steel surface, suppressing interfacial charge transfer and thereby progressively enhancing the corrosion-inhibition performance with the extension of immersion time. Therefore, this study provides a new strategy for the design and development of long-lasting corrosion-inhibiting materials for carbon steel rock bolts in complex mine environments. Slow release of BTA in weakly alkaline mine leach liquor enables sustained adsorption on carbon steel, suppresses charge transfer, and provides long-term corrosion protection. Download: Download high-res image (260KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Jinyun Guan,Dandan Wang,Xiaozheng Ma,Ruoxin Wang,Lin Dang,Yihang Sun,Yichenyang Li,Jifeng Guo
Eutrophication of aquatic water bodies and the consequent harmful algal blooms (HABs) induced by excessive phosphorus (P) have become a critical global environmental challenge. In this study, a flower-like spherical metal-organic framework (MOF) material, La-BDC-NH 2 , was successfully synthesized via a hydrothermal method for the simultaneous phosphate adsorption and Microcystis aeruginosa flocculation. Its physicochemical properties were systematically characterized using a suite of analytical techniques, including X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The results of phosphate adsorption performance tests demonstrated that the maximum adsorption capacity of this material for phosphate reached 75.65 mg/g at 25 °C. In the microalgal flocculation experiments, the harvesting efficiency of Microcystis aeruginosa exceeded 95% at the optimal dosage of 0.2 g/L. Notably, La-BDC-NH 2 retained excellent phosphate adsorption and microalgal flocculation performance over a broad pH range (4–10) and initial algal concentration range (OD 680 = 0.1–1.0), thus exhibiting robust adaptability to complex aquatic environments. Furthermore, this material could efficiently convert proteinaceous extracellular organic matter (EOM) released by Microcystis aeruginosa into more stable humic acid-like substances, thereby mitigating the environmental risks associated with EOM accumulation. Ultimately, this study demonstrates that La-BDC-NH 2 is a multifunctional, highly efficient, and stable environmental functional material for aquatic eutrophication control. It has good application prospects in controlling HABs and aquatic eutrophication, and provides a practical and feasible technical strategy for mitigating harmful algal blooms in eutrophic aquatic systems.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Jin Liu,Zhirui Fan,Wenzhe Zhao,Peipei Song
Recently, escalating antibiotics contamination in aquatic environments has become a critical global threat to public health. In this study, a novel cathode catalyst (NH 2 -MIL-101(Fe)@Mel-MoPc/BC) was fabricated via hydrothermal method for efficient degradation of ofloxacin (OFX) through an electro-activated peroxymonosulfate (PMS) system. The incorporation of Mo-C and Fe/Mo-N substantially enhanced the electrocatalytic performance. The influence of various parameters, including the internal mass ratio of the catalyst, current, PMS concentration, OFX concentration, pH, as well as electrolyte concentration and type on OFX degradation were systematically evaluated. Under optimal conditions, OFX degradation reached 92.6 %, with 84.2 % total organic carbon removal, outperforming previous studies. The free radical quenching experiment and electron paramagnetic resonance analysis identified singlet oxygen ( 1 O 2 ) as the dominant active species. In situ Raman spectroscopy, high performance liquid chromatography-mass spectrometry and density functional theory calculation elucidated the degradation mechanism and pathways of OFX, including demethylation, decarboxylation, hydroxylation, and dehydrogenation, ultimately forming water, carbon dioxide, and inorganic ions. Furthermore, computational toxicology and seed germination tests confirmed significantly reduced wastewater toxicity after treatment by electro-activated PMS system based on NH 2 -MIL-101(Fe)@Mel-MoPc/BC cathode. Additionally, it also exhibited superior cyclic stability and excellent performance in various real water matrices and for other organic pollutants such as Rhodamine B, phenol, tetracycline, and dimethyl phthalate, demonstrating great application potential. This work provides valuable insights into cathode catalyst design and establishes a sustainable technology for antibiotic wastewater treatment.
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Guoni Huang,Jiezhen Pan,Junfang Zhu,Ye Zhang,Xiaohe Zhang,Shihua Luo
In this study, we introduce an ultrasensitive electrochemical RNA biosensor based on hyperbranched primer exchange reaction (HPER) cascade amplification and Au@Pt@UiO-66-NH 2 nanozymes. This strategy employs catalytic hairpin assembly (CHA) for precise target RNA recognition, which trigger the immobilization of HPER products onto the electrode surface, thereby providing binding sites for nanozymes. Then, the sDNA@Au@Pt@UiO-66-NH 2 signal probes (sDAPU probes) attach to the HPER scaffolds through base-pairing interactions, facilitating signal amplification. The nanozymes catalyze the decomposition of hydrogen peroxide into H 2 O and O 2 , producing a significantly amplified electrochemical signal. By combining CHA-HPER cascade amplification with the catalytic activity of sDAPU probes, the established biosensor achieves remarkable sensitivity, with a detection limit as low as 14.68 aM, and high specificity that enables the differentiation of non-target pathogen RNA. Furthermore, the biosensor also demonstrates excellent recovery rates in serum samples. Therefore, this electrochemical strategy shows great potential as a diagnostic tool for ultrasensitive Mycobacterium tuberculosis detection.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Yue Li,Junhao Zhou,Xiaoping He,Youzhou He,Jiajia Jing,Xingyan Liu,Siqi Li,Siping Wei
Under the global dual-carbon goal, photocatalysis technology is being employed as a green technology for NO removal and hydrogen production . However, the application of photocatalysts is often limited by the weak response to visible light and the low separation efficiency of photogenerated carriers. In this paper, we designed a simple and efficient photocatalyst Au@NM-125/PdTCPP for NO removal and hydrogen evolution . By adding PdTCPP molecule with excellent light absorption ability combine with MIL-125-NH 2 (Ti), the introduction of PdTCPP expands the absorption range of visible light. On the other hand, the introduction of Au NPs with surface plasmon resonance effect promotes electron transport between PdTCPP and MIL-125-NH 2 (Ti), thus greatly improving the photocatalytic performance. Compared with the NO removal efficiency of the original NM-125 (22.06 %), the NO removal rate of NM-125/PdTCPP was 63.72 %, while the NO removal rate of Au@NM-125/PdTCPP was the highest, reaching 73.23 %. What’s more, Au@NM-125/PdTCPP also demonstrated excellent hydrogen evolution performance (12.659 mmol/g, in 4 h), with a hydrogen evolution effect 2.14 times that of NM-125/PdTCPP (5.911 mmol/g, in 4 h) and 6.85 times that of the initial material NM-125 (1.848 mmol/g, in 4 h). Based on the results of UV-Vis spectroscopy, Mott-Schottky and XPS spectrum, we proposed a possible photocatalytic mechanism, the suitable band gap value of MIL-125-NH 2 (Ti) and PdTCPP makes them form a Z-scheme heterojunction , where electrons flow from PdTCPP to MIL-125-NH 2 (Ti), and Au NPs acts as an electron bridge to promote more electron transfer, thus improving the photocatalytic performance. It is a practicable strategy to achieve excellent photocatalytic performance by combining metalloporphyrin molecules as semiconductors directly with MOFs to form heterojunctions and adding Au NPs as electronic bridges, which is also valuable for environmental remediation and energy production.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.7
Zeyun Yang,Hao Guo,Yanrui Hao,Yu Yan,Wenting Niu,Jianpeng Ma,Ruixue Yan,Wu Yang
Although caffeic acid (CA) has important physiological effects, such as antioxidant and antibacterial properties, high concentrations of CA can increase the risk of cancer. Therefore, it is very necessary to establish a simple and sensitive detection method for it. Herein, a novel CA electrochemical sensing interface was constructed by in-situ growing NH 2 -UiO-66, a zirconium-based metal-organic framework (MOF), on semiconductor cupric bismuthate CuBi 2 O 4 (CBO) and further loading acidified multi-walled carbon nanotubes (MWCNTs). The obtained nanocomposite fully leverages the respective advantage of each component, including the excellent electrocatalytic activity of CBO, the selective adsorption ability of MOF, and the high conductivity and signal amplification effect of MWCNTs. Particularly, the acid-functionalized MWCNTs possess sufficient surface electroactive groups (sp 2 -C-OH), which can generate a stable electrochemical response through the reversible transformation between hydroxyl and quinone groups, thereby providing an important guarantee for constructing a self-referencing ratiometric electrochemical sensor. The electrochemical sensor was prepared by modifying the composite CBO@NH 2 -UiO-66/MWCNTs on glassy carbon electrode (GCE) to realize CA detection in wide range of 0.2–150 μM with a low detection limit (LOD = 0.052 μM) and excellent reproducibility, stability and selectivity. The analysis of actual beverages including red wine, green tea and coffee also achieved satisfactory recovery results and precision.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 3
·122692
·
IF 7.5
Huanggen Yang,Shulun Yin,Pei Zhang,Qi Zheng,Faisal Alresheedi,Imran Shakir,Saleem Raza,Duofu Li,Yan Sui
The energy crisis calls for eco-friendly alternatives, and hydrogen production presents a viable solution. As a clean energy source, hydrogen can be produced from water using renewable power, decreasing dependence on fossil fuels and substantially cutting greenhouse gas emissions paving the way for a greener future. This work involves the fabrication of Ti 3 C 2 T x and NH 2 -MIL-125(Ti) by hydrothermal procedures. Ti 3 C 2 T x material served as the substrate for the immobilization of NH 2 -MIL-125(Ti), which were then incorporated into sodium alginate to generate (Ti 3 C 2 T x @NH 2 -MIL-125(Ti)-SA). The electrocatalytic efficacy of Ti 3 C 2 T x @NH 2 -MIL-125(Ti)-SA was evaluated for the hydrogen evolution reaction (HER) under alkaline factors using a 1 M KOH electrolyte. The material demonstrated exceptional capacitance, impressive rate capability, and sustained stability during 1000 cycles over a 24 and 48 h. The Ti₃C₂Tₓ@NH₂-MIL-125(Ti)-SA composite exhibits excellent HER catalytic activity in alkaline media, delivering a low overpotential of 14 mV at 10 mA cm⁻² and a Tafel slope of 56.4 mV dec⁻¹ . Although the benchmark Pt/C catalyst shows slightly superior performance (12 mV, 41.1 mV dec⁻¹), the developed composite demonstrates comparable activity, along with advantages of structural stability and cost-effectiveness compared to noble metal-based catalysts. Overall, Ti 3 C 2 T x @NH 2 -MIL-125(Ti)-SA demonstrates excellent electrode performance in alkaline conditions, as compared with pristine Ti 3 C 2 T x and NH 2 -MIL-125(Ti), which marked by remarkable stability, low Tafel slope values, and minimized overpotentials, underscoring its significant promise for efficient water splitting applications.
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Lijun Gao,Dongmei Han,Zhihua Wang,Fubo Gu
Tubular carbon-covered cobalt-doped bi-crystalline phase In 2 O 3 (denoted as CoInO-x) was synthesized by one-step calcination of the metal-organic framework cobalt-doped MIL-68(In)-NH 2 precursor. The photocatalytic activity of CoInO-x was investigated using tetracycline hydrochloride (TCH) degradation. The removal of TCH by CoInO-500 obtained by calcination at 500 °C under visible light irradiation was 90.1% after 70 min, which was significantly higher than that of In 2 O 3 . The reaction rate constant of CoInO-500 was 11.02 times higher than that of In 2 O 3 and could maintain a better photocatalytic performance after four cycles. The effects of photocatalyst dosing, pH, and inorganic anions on photocatalytic degradation were studied. The mechanism of photocatalytic degradation was analyzed in detail by reactive radical trapping experiments, Mott-Schottky measurements, and electron paramagnetic resonance (EPR) signal characterization. Enhanced photocatalytic performance is mostly attributed to the cobalt doping creating impurity energy levels and narrowing the forbidden bandwidth of In 2 O 3 , enhancing the visible light utilization and the photogenerated charge separation efficiency. Carbon covering can serve as a bridge for charge transport, accelerating the rapid transport of photogenerated charges.
✓ 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）