Surfaces and Interfaces
·
2025
·
IF 6.3
Guang Yang,Jin Liang,Tian Lei,Yaxi Zhang,Li Zhang
Transition metal phosphides (TMPs) have emerged as promising candidates for the hydrogen evolution reaction (HER) due to their tunable phases and electronic structures. However, the development of bifunctional electrocatalysts that effectively balance HER and oxygen evolution reaction (OER) for overall water splitting presents a significant challenge. In this work, we report a novel cauliflower-like bimetallic phosphide, CoMo-P, synthesized on ZIF-67-derived NiCo layered double hydroxide (LDH) through a formic acid-assisted electrochemical phosphating process. This innovative approach not only enhances catalytic efficiency for both HER and OER but also offers a rapid, environmentally friendly, and straightforward fabrication method. The incorporation of formic acid during the electrodeposition process plays a crucial role in optimizing the catalyst's composition and microstructure. Specifically, formic acid facilitates the reduction rate of hypophosphite and stabilizes charged intermediates, thereby reducing the electrodeposition energy barrier and enhancing phosphating efficiency. As a result, the CoMo-P(NCL)/NF electrode demonstrates exceptional HER performance in alkaline media, achieving overpotentials of 55 mV and 108 mV at current densities of 10 and 50 mA cm ‑ 2 , respectively, significantly outperforming the control sample without formic acid addition (η 10 = 80.4 mV, η 50 = 142 mV). Moreover, the electrode exhibits remarkable OER activity with overpotentials of 273 mV and 310 mV at 10 and 50 mA cm ‑ 2 , respectively. When employed as a bifunctional catalyst for overall water splitting, the CoMo-P(NCL)/NF electrode pair requires a low cell voltage of 1.574 V to achieve a current density of 10 mA cm ‑ 2 , surpassing the performance of numerous reported bifunctional catalysts. This study provides a promising strategy for the rational design and practical application of high-performance bifunctional electrocatalysts in sustainable energy conversion systems.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Zhangwei Sun,Yuhao Qi,Kaile Wang,Jiaming Li,Xiaoyu Qiu,Yunhe Zhao,Li Guo
In this study, we developed an in-situ deposition method to load small-sized AgI nanoparticles as an oxidative photocatalyst (OP) onto phosphorus (P) and potassium (K) co-doped two-dimensional porous g-C 3 N 4 (PK-CN-N) as a reductive photocatalyst (RP), forming an S-scheme heterojunction photocatalyst AgI/PK-CN-N. PK-CN-N achieved morphology control and element doping, leading to surface functionalization and heterostructure formation for the AgI/PK-CN-N photocatalyst. Notably, the 50AgI/PK-CN-N composite demonstrated an approximately 95 % removal efficiency for RhB within 30 minutes, 17.6 times higher than pure g-C 3 N 4 , surpassing most reported g-C 3 N 4 -based photocatalysts. The enhanced photocatalytic efficiency is attributed to the surface modification strategy and heterostructure formation of g-C 3 N 4 , which broadens the visible light response range, increases the number of active sites, improves the separation of photogenerated electron-hole pairs, and enhances REDOX capabilities. The band structure of the composite was elucidated through Mott-Schottky analysis and UV–vis DRS. The formation of the AgI/PK-CN-N S-scheme heterojunction and its charge transfer mechanism was confirmed through XPS, band structure analysis, KPFM, and EPR spectroscopy. Experimental data confirmed the presence of a strong and effective interface electric field between the two semiconductors, leading to band bending and accelerated charge separation. Additionally, the introduction of small-sized AgI semiconductors enhanced the exposure of the coupling interface, further improving catalytic performance. The reusability and lifespan of the catalyst were also analyzed, showing that after four cycles, the photocatalytic activity remained above 92 %.
✓ 已验证
产品关联
DOI
高影响因子
TRIBOLOGY INTERNATIONAL
·
2024
·
IF 6.1
Yue Lou,Yuxiang Liang,Mengya Zhao,Wenqi Rui,Zhenming Li
Four dual active site ionic liquids (ILs): N2NP0, N4NP0, N6NP0, N10NP0 and three single active site ILs: N2P0, N3P0, N8P0 were synthesized successfully, furthermore, anti-wear and extreme pressure properties of the additives were tested with 0.5 wt% concentration in PAO10 base oil. The results showed that N6NP0 with carbon chain length of six between the nitrogen atoms exhibits the best tribological performance (The wear scar diameter is 0.39 mm, the values of P B (the last non-seizure loads) and P D (weld points) were 135 Kgf and 200 Kgf, respectively), which is mainly attributed to the formed thicker tribo-film (thickness of 50–60 nm) on the friction surface. Through analyzing the tribological morphology, chemical composition and tribo-film microstructure of wear scars surface by SEM-EDS, 3D profile, AFM, XPS and FIB-TEM, the lubrication mechanism of ILs was revealed. Furthermore, density functional theory (DFT) calculations confirmed that the tribological performance of dual active site ionic liquid additives depend strongly on their molecular configuration. It was found that rational adjustment of the length of the ILs cationic active site linkage group results in a reduction of the steric hindrance of the entire molecule. This study will help to guide the design of ILs with good tribological performance and low phosphorus content.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Qiuling Chen,Shun Wang,Baoji Miao,Qiuping Chen
The creation of a Z-scheme heterojunction is a sophisticated strategy to enhance photocatalytic efficiency. In our study, we synthesized an In 2 S 3 /MnO 2 /BiOCl dual Z-scheme heterostructure by growing BiOCl nanoplates on the sheets of In 2 S 3 nanoflowers, situated on the surface of MnO 2 nanowires. This synthesis involved a combination of hydrothermal and solution combustion methods. Experiments and density functional theory (DFT) calculations demonstrated that the In 2 S 3 /MnO 2 /BiOCl composite exhibited notable photo reduction performance and photocatalytic stability. This was attributed to the pivotal roles of BiOCl and MnO 2 in the composite, acting as auxiliaries to enhance the electronic structure and facilitate the adsorption/activation capacity of CO 2 and H 2 O. The yield rates of CO, CH 4 , and C 2 H 4 over In 2 S 3 /MnO 2 /BiOCl as the catalyst were 3.94, 5.5, and 3.64 times higher than those of pure In 2 S 3 , respectively. Photoelectrochemical analysis revealed that the dual Z-scheme heterostructure, with its oxygen vacancies and large surface area, enhanced CO 2 absorption and active sites on the nanoflower/nanowire intersurfaces. Consequently, the dual Z-scheme charge transfer pathway provided efficient channels for boosting electron transfer and charge separation, resulting in high C 2 H 4 , CH 4 , and CO yields of formed and exihibits an promising photoreduction rate of CO 2 to CO (51.2 µmol/g.h), CH 4 (42.4 µmol/g.h) and C 2 H 4 (63.2 µmol/g.h), respectively. DFT, in situ Diffuse reflectance infrared fourier transform spectroscopy, and temperature-programmed desorption tests were employed to verify the intermediates pathway. The study proposed a potential photocatalytic mechanism based on these findings.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Weijie Zhang,Shunshun Zhao,Yupeng Xing,Hongjie Qin,Qiling Zheng,Penghui Zhang,Shouwei Zhang,Xijin Xu
The sustainable conversion from solar energy to chemical energy is realized by using photocatalytic technology to produce hydrogen and hydrogen peroxide. In this work, the construction of a direct Z-scheme heterojunction is of great significance for improving the efficiency and stability of photocatalytic hydrogen evolution (PHE) and photocatalytic hydrogen peroxide production (PHP). In this study, P-doped h-BN (PBN) nanosheets are used to support the in-situ growth of ZnIn 2 S 4 nanoflowers via wet chemical method, and sandwich-like PBN/ZnIn 2 S 4 hierarchical heterostructures are successfully synthesized. The PHE performance of PBN/ZnIn 2 S 4 (∼59.46 μmol/h) is ∼ 2.35 times than that of the original ZnIn 2 S 4 (∼25.27 μmol/h), and the PHP performance (∼122.82 μmol/L/h) is 39.37 times than that of PBN (∼3.12 μmol/L/h). The excellent photocatalytic performance of PBN/ZnIn 2 S 4 can be attributed to the following points: (1) the acceleration of the separation of photogenerated electron-hole pairs induced by the formation of Z-scheme heterostructure; (2) reasonable design and construction of sandwich-like PBN/ZnIn 2 S 4 hierarchical heterostructure; (3) the promotion the migration and separation of photogenerated carriers by the built-in electric field. This work provides new ideas for the development of high-efficiency PHE and PHP Z-scheme heterojunction photocatalyst design.
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Yanhua Liu,Yuanyue Li,Geoffrey I.N. Waterhouse,Chenchen Liu,Xiaohui Jiang,Zhiming Zhang,Liangmin Yu
A smart composite system based on thermosensitive polymers and photosensitive polyaniline (PANI) was constructed in this work, enabling efficient photo-driven adsorption and separation of anionic dyes within a short time. Thermosensitive copolymers (P(NIPAM-NVK)) of N -isopropylacrylamide (NIPAM) and N -vinylcarbazole (NVK) with adjustable low critical solution temperatures (LCST) were synthesized via a free radical copolymerization method. PANI was then composited with P(NIPAM-NVK) as a photothermal agent and dye adsorbent. The developed P(NIPAM-NVK)/PANI composite systems showed a rapid temperature increase under visible light irradiation, triggering the transition of P(NIPAM-NVK) from the sol state to a bulk gel state. Simultaneously, PANI and Congo Red (CR) anionic dye were efficiently encapsulated within the gel state of P(NIPAM-NVK) via intermolecular interactions, facilitating the rapid separation of aqueous CR through a direct solid–liquid process to yield clean water. The P(NIPAM-NVK 10 )/PANI 0.5 composite system afforded a removal efficiency > 98 % for CR (80 mg/L) within 5 min under visible light illumination. These findings hold great promise for the eco-friendly treatment of dye-containing wastewater.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2024
·
IF 8.4
Yanchao Zhang,Jingyi Wu,Song Wang,Junjian Yu,Yiman Gu,Yan Wang,Jian Gao,Chang Sun,Zhanyu Li,Yijia Lei,Na Li,Jialin Zhao,Zhe Wang
The establishment of well-developed ionic conduction channels and the preparation of excellent chemical stability are urgent needs for anion exchange membranes. In this study, we successfully prepared poly ( p -terphenyl-piperidine-bromoacetophenone) polymers using superacid catalysis. Then a series of QPTPP-N-ASU-x AEMs were prepared by introducing N-spirocyclic side chain cations (N-ASU) with different grafting rates. The introduction of N-spirocyclic cations with better alkali resistance increases multiple OH − transport sites, contributes to the microphase separation structure, and is synergistic with piperidine cations to rapidly construct ion transport networks, giving the membranes good conductivity and alkali resistance stability. The AFM showed that QPTPP-N-ASU-5% AEM had a remarkable microstructure and formed large ionic domains, the conductivity of the membrane was 121.2 mS cm −1 , corresponding to a peak power density of 477.25 mW cm −2 . The conductivity residual of QPTPP-N-ASU-5% AEM was 94.15 % and 87.71 % after immersion in 2 M and 4 M NaOH at 80 °C for 1440 h. It shows that membrane has good potential for application.
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Chengmin Hou,Weimin Yan,Hanxiao Ma,Yuan Bai,Zhiting Yuan
Heavy metal ion (Cu(II)) wastewater will do great harm to human body and environment, and the adsorption materials used in traditional adsorption methods are easy to hydrolyze, resulting in secondary pollution to water. In this paper, an adsorption material poly(glycidyl methacrylate-random-hydroxyethyl methacrylate) grafted ferric oxide@starch (St/Fe 3 O 4 - g -p(GMA- r -HEMA)) was prepared, which had epoxy and hydroxyl group , easy to produce crosslinking, reduce the sensitivity of starch to pH and prevent hydrolysis. Infrared spectroscopy (FTIR), thermogravimetric analysis (TG), scanning electron microscopy (SEM) and magnetometer (VSM) were used to characterize the structure and morphology of the adsorbent. The adsorption properties of the adsorbent for removal of Cu(II) ions were studied via changing the experimental conditions, including the amount of adsorbent, Cu(II) ions solution concentration, pH value, adsorption time, adsorption temperature and so on. Under the optimal adsorption conditions of pH value 7, initial Cu(II) concentration 20 mg/L and adsorption time 160 min, the maximum unit adsorption capacity of St/Fe 3 O 4 - g -p(GMA- r -HEMA) was 94.15 mg/g, and the adsorption performance was good. The adsorption process followed Langmuirm model and second-order kinetic model , and was dominated by chemisorption . The thermodynamic model showed that the adsorption process of St/Fe 3 O 4 - g -p(GMA- r -HEMA) was endothermic. After 8 adsorption cycles, 93.5% of the first adsorption effect can still be retained, and the renewable performance had been improved.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Saudi Chemical Society
·
2024
·
IF 5.8
Liping Zhao,Ye Zhao,Lihe Zhao,Gang Liu
A nitrogen-phosphorus dual-doped auricularia auricula carbon (NP-AC) matrix was prepared through hydrothermal treatment using natural auricularia auricula as raw material and medium solution. Yeast was introduced and cultured by the auricularia auricula liquid medium. The NP-AC/S composite was prepared through further freeze-drying, carbonization, activation and compounding with sulfur procedures. The composition and microstructure of samples was characterized by X-ray diffraction (XRD), raman and X-ray photoelectron spectroscopy (XPS). The morphology was observed under scanning electron microscope (SEM) and transmission electron microscopy (TEM) method. The specific surface area was analyzed using nitrogen adsorption/desorption test. The weight ratio of sulfur was measured through thermogravimetric (TG) analysis. The original structure and composition of biomass were improved by yeast fermentation and the auricularia auricula block structure with low porosity was modified. The electrochemical performance of NP-AC/S composite in Li-S batteries was systematically explored. After 100 cycles at 0.2C current density, there was still nearly 1000 mAh g −1 reversible capacity, holding a capacity retention rate of more than 84 %. The cycle performance and rate performance were both far better than the ordinary activated carbon materials.
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Yanni Li,Yujia Han,Hongxia Li,Xiaohui Niu,Deyi Zhang,Haiyan Fan,Kunjie Wang
A novel visible-light-driven type II p-n heterojunction CAU-17/MoS 2 photocatalytic antifouling biocide was prepared and indicated significant inhibition against the most pharmaceutically recognized harmful microorganisms: gram-positive Staphylococcus aureus ( S. aureus ), gram-negative Escherichia coli ( E. coli ) and the drug-resistant bacterium methicillin-resistant Staphylococcus aureus (MRSA). The antimicrobial mechanism is attributed to the production of reactive oxygen species (ROS) such as •OH, 1 O 2 due to the photocatalytic properties of CAU-17/MoS 2 heterojunction. The electron-hole complexation efficiency of the nanocomposites was analyzed using photoluminescence spectroscopy and characterized using electron microscope. It was found that the heterojunction structure of the nanocomposites provided multiple charge transfer channels to significantly improve the transporting and separating efficiency for the photo-induced electron-hole pairs, which consequently facilitated the production of ROS. Given the promising antimicrobial effects, further investigation on the broader application of CAU-17/MoS 2 biocides is needed to test the cytotoxicity, as well as the post-bacteriostatic wound healing effect upon animal models.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Physical Chemistry C
·
2024
·
IF 3.3
Kaili Wang,Yameng Zhu,Liuyingzi Yu,Lu Jiang,Xinya Chen,Zhihao Lu,Kun Gao,Xing Kang,Zhongyan Gong,Qiming Peng,Gang Lu
The decarboxylation reaction can be accelerated with the assistance of localized surface plasmon resonance under mild conditions, benefiting from the enhanced light utilization and excitation of high-energy hot carriers. However, the reaction rate remains far below the theoretical limit since plasmon-excited hot carriers easily recombine due to their ultrashort lifetime. Herein, we effectively accelerate the decarboxylation reaction of p-mercaptobenzoic acid (PMBA) on the surface of silver nanoparticles (AgNPs) by coadsorbing p-hydroxythiophenol (PHTP) molecules as molecular cocatalysts. More importantly, the period of this coadsorption is crucial to the obtained reaction rate acceleration. Compared with short-period coadsorption, long-period coadsorption could lead to a larger acceleration in reaction rate, due to the further promoted separation of plasmon-generated hot carriers. This work provides a simple, convenient, and effective strategy to boost the decarboxylation reactions on silver surfaces. This strategy holds potential for developing a variety of highly efficient plasmon-based catalysts in the near future.
✓ 已验证
产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2025
·
IF 12.5
Jierui Ye,Jiamin Wang,Jingyu Li,Yiwei Li,Pan Chen,Junfeng Wang,Yuebing Gao,Qingtian Xu,Qiang Wu,Qian Li
Bamboo holocellulose emerges as a significant candidate in the field of bio-based functional materials, owing to its rapid growth cycle, high strength, and antioxidant properties. However, its flammability poses a significant critical challenge, thereby hindering the widespread application of this carbonized polymer. In this study, we present a straightforward and efficient ternary deep eutectic solvent (TDES) pretreatment strategy. Specifically, the TDES treatment was employed to chemically introduce P/N/S groups into holocellulose and lignin, resulting in the production of flame-retardant holocellulose (HC-SP) and lignin (Lignin-SP), respectively. By adjusting the ratio of these two components, nanosuspensions and nanocomposite films were fabricated through a co-grinding process. The incorporation of Lignin-SP imparted the P/N/S-containing holocellulose nanofibril composite films with exceptional flame retardancy (with a limiting oxygen index exceeding 52.5 %), substantial tensile strength (reaching 152.3 MPa), robust UV-blocking capability (blocking over 98.9 % of UV radiation), and biodegradability (degrading within 70 days). This straightforward preparation strategy for all-biobased green flame-retardant packaging materials holds promising application potential in the fields of flame-retardant food packaging.
✓ 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）