Bioresource Technology Reports
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2018
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IF 0
Bing-Qian Wang,Bo Peng,Jian-Fei Sun,Chu Wang,Ke Jiang,Jing-Hao Ma,Peng-Qi Zhang,Yu-Cai He
An effecti v e combination pretreatment of bamboo shoot shell (BSS) using Emulsifier OP-10 (0.5%, w/v) in the acidified media (pH 4.0) by autoclaving (120 °C, 40 min) was conducted. After BSS slurry without detoxification was enzymatically hydrolyzed for 96 h, glucose (25.2 g/L) and xylose (7.5 g/L) were obtained from 50 g/L BSS at high yields. HPLC results showed that no potential inhibitors (furfural and 5-hydroxymethylfurfural) formed. In the hydrolysates , an effective biocatalytic synthesis of ethyl ( S )-4-chloro-3-hydroxybutanoate (100% yield; >99% e.e. ) from 1000 mM ethyl 4-chloro-3-oxobutanoate was developed without the extra addition of cofactors within 24 h. In summary, this combination strategy involving biomass pretreatment, enzymatic saccharification , and bioreduction can be developed for producing chiral alcohols.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2018
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IF 3.779
Yanyan Chen,Qiang Wang,Tianyong Zha,Jigang Min,Jingying Gao,Cunhui Zhou,Jingyang Li,Mengdi Zhao,Shenjie Li
High-quality water-soluble Ag-In-S/ZnS core/shell quantum dots have been successfully synthesized via a facile and green method, with mercaptosuccinic acid and sodium citrate as dual ligands in one pot. The fabricated quantum dots exhibit excellent optical characteristics, including photoluminescence quantum yield (PLQY) of up to 50%, and the obvious first excition absorption peak. The emission peak of Ag-In-S/ZnS core/shell quantum dots can be tuned from 507 to 580 nm which covers the most of the visible light . Finally, the as-prepared Ag-In-S core quantum dots can be used directly in ion probe , achieved the direct visual inspection of Pb 2+ .
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高影响因子
GREEN CHEMISTRY
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2025
·Vol. 27
·期 17
·4540-4550
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IF 9.2
Yang Zhao,Ruguang Wang,Jisi Li,Jiaxin Guo,Quanlu Wang,Zheng Lv,Pengfei Yin,Tao Ling
Single-atom catalysts towards the oxygen reduction reaction (ORR) often suffer from unsatisfactory activity and poor stability. Herein, for the first time, we successfully modulated the electronic structure of the Mn–N–C catalyst by introducing chalcogen oxygen groups (XO2, X = S, Se, Te), which induce changes in the Mn–N bond length in the MnN4 structure, thereby modulating the electronic structure of the metal center Mn. The experimental results demonstrate that the introduction of XO2 groups results in the rearrangement of Mn 3d electrons, which can be strongly correlated with the ORR activity of the Mn–N–C catalysts, among which the SeO2 modification increases the kinetic current density of the Mn–N–C catalyst achieving a half-wave potential (E1/2) of 0.79 V versus the reversible hydrogen electrode, approaching that of Fe–N–C catalysts along with significant stability in acidic media. The promising performance of the Mn–N–C catalyst as a PGM-free cathode was confirmed through fuel cell testing. First-principles calculations demonstrate that the introduced XO2 group downshifts the d-band center of the Mn center, thus successfully optimizing the adsorption of oxygen intermediates. This finding significantly facilitates the activity enhancement of Mn–N–C catalysts via the construction of a geometric structure–electronic structure–catalytic property relationship.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Siyuan Sun,Xiaoyun Zhang,Yang Sun,Fan Yang,Tianyu Bai,Cunhui Yu,Kexin Wei,Haojia Zhong,Qiang Wei,Yongfeng Li
Porous carbon coated manganese compounds nanoparticles (MnX, X = P, O or S) is a kind of potential catalysts for oxygen electrocatalysis due to the controllable d-band center, while the complex mechanism and performance difference is yet to reveal due to the lack of catalyst platform. Herein, the ORR catalytic activity and difference reason between manganese phosphide, oxide, and sulfide are tested and discussed via manganese compounds contained carbon-based catalyst platforms synthesis and Density functional theory (DFT). Manganese compounds nanoparticles active sites are uniformly distributed in porous carbon fibers/graphene composite, which guarantees the high mass transfer ability and conductive ability. Experiment results show that catalyst with Mn 2 P active sites exhibits best bifunctional catalytic activity for ORR/OER, which only need 0.89 V (vs. RHE) to achieve a half-wave potential (E 1/2 ) in ORR and 1.58 V (vs. RHE) to reach the overpotential at 10 mA cm −2 (E 10 ) in OER. Theoretical analysis shows that the d-band center of Mn in Mn 2 P is much closer to the Fermi level than MnS and MnO. The rate-determining process of Mn 2 P has the smallest energy barrier of 0.56 eV, indicating the best ORR activity. This work provides paves a solid way for the synthesis of carbon-based catalysts with manganese compounds active sites.
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PubMed
高影响因子
Solar RRL
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2025
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IF 4.7
Yongliang Lai,Bowen Liu,Dongdong Shen,Zhuoer Deng,Xinan Shi,Daocheng Pan
Indium tin oxide (ITO) is usually served as the transparent conductive electrode of Cu(In, Ga)(S, -Se) 2 (CIGSSe) solar cells. However, ITO is fabricated by sputtering method, which will increase the cost of CIGSSe solar cells and prevent its large-scale market applications in the future. Hence, it is particularly important to develop low-cost transparent conductive window layers to replace the traditional ITO. Silver nanowires (AgNWs) are considered to be the most promising alternative to ITO. Compared with sputtered ITO, AgNWs have the advantages of high transmittance, low cost, and easy fabrication. Nevertheless, the poor adhesion and stability of AgNWs can prevent the transportation of carriers of CIGSSe solar cells. Here, we select amorphous TiO x as an adjuvant to fabricate AgNWs/TiO x composite transparent conductive layer to substitute the traditional ITO. Under the assistance of TiO x matrix, not only the connection, adhesion, and stability of AgNWs are greatly enhanced, but also the surface roughness of AgNWs is also reduced. The influence of AgNWs concentration on the performance of CIGSSe solar cells is investigated. When the AgNWs concentration is 2.5 mg/mL, the transmittance and sheet resistance of AgNWs thin film are 93.35% and 93 Ω/sq, respectively, and the devices achieved the highest efficiency of 13.59%.
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高影响因子
APPLIED SURFACE SCIENCE
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2021
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IF 6.707
Hardy Shuwanto,Hairus Abdullah,Dong-Hau Kuo,Noto Susanto Gultom
Y-doped Zn(O,S) nanocatalysts with different Y amounts have been fabricated, characterized, and applied for photocatalytic hydrogen evolution reaction (HER) and hydrogenation reaction (PHR) to reduce nitro groups and to cleave azo (N N) bond. The oxysulfide formation was confirmed by XRD, SAED, and DRS analyses. The best Y-doped Zn(O,S) could evolve hydrogen by 3,946 μmol g −1 h −1 in aqueous solution with ethanol as a hole scavenger reagent. The PHR of 5% Y-doped Zn(O,S) could hydrogenate 4-nitrophenol to 4-aminophenol and nitrobenzene to aniline in 120 and 90 min, respectively in a low-power UV light illuminated condition (16 W) as confirmed with UV–Vis spectroscopy. Besides of that, a sluggish cleavage of N N bond in azobenzene could be totally done to yield aniline within 30 min. Lastly, the detail mechanisms of HER and PHR including their molecular chemisorption phenomena were proposed and described with the steps of solvation , adsorption, pinning, and surface hydrogenation reactions.
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高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2013
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IF 2.206
Tian Lan,Lecheng Lei,Bin Yang,Xingwang Zhang,Zhongjian Li
Kinetics of iron(II)- and manganese(II)-catalyzed oxidation of S(IV) in seawater were studied here to provide theoretical support for the flue gas desulfurization process (SFGD). Experiments were carried out with artificial seawater and acetic buffer. Results indicated that the reaction order with respect to dissolved oxygen is zero. However, the reaction order with respect to S(IV) is variable: second-order under uncatalyzed condition (4.0 ≤ pH ≤ 7.0); first-order under Fe(II)-catalyzed oxidation (2.5 ≤ pH ≤ 3.5); first-order (4.0 ≤ pH ≤ 5.0) and second-order (5.5 ≤ pH ≤ 5.9) under Mn(II)-catalyzed oxidation. The different S(IV) dependence could be attributed to different metal speciation at different pH values. Also, acetate is found to have significant inhibition effect on Mn(II)-catalyzed oxidation in high ion strength solution. The strong catalytic effect of Fe(II) and Mn(II) ions on S(IV) oxidation could lead to new ideas for the design of SFGD systems.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Yanning Qu,Wanquan Ma,Shihu Lei,Yuan Yu,Dongfeng Sun,Huayun Du,Madi Ren
Metal-organic frameworks (MOFs)-based heterojunctions, as one of porous materials, offer abundant unsaturated coordination sites, making them suitable for photocatalytic N 2 reduction. However, complicated reaction methods, mismatched interfaces and ineffective photo-induced carrier separation restricted their applications. In this study, a kind of Cu 2 O/Cu-MOF heterojunction was synthesized via a fast in situ method in acidic medium (CCM-a). It showed a typical core-shell structure with Cu-MOF coating surrounding the Cu 2 O. The photocatalytic NH 3 yield of CCM-a reached 83.25 μmol/g/h, which was 9.03 and 19.64 higher than that of pure Cu 2 O and CCM-b, respectively. The reaction pathway of N 2 reduction was investigated using density functional theory (DFT) and in-situ FT-IR spectra, revealing a preference for the alternating association pathway. The photocatalytic mechanisms were analyzed through the built-in electric field (IEF) theory, supporting its S-scheme charge-transfer route of CCM-a. The novel material achieved from in situ strategy not only ensured a good interface matching ability but also facilitated sufficient separation of photo-generated carriers via a S-scheme route for efficient photocatalytic N 2 fixation.
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高影响因子
APPLIED SURFACE SCIENCE
·
2026
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IF 6.6
Xiaohui Ma,Jianlin Zhao,Mengyao Ren,Xu An,Nan Jiang,Songbo Li,Ping Bai
The design of non-precious metal H 2 -producing photocatalysts for photocatalytic H 2 production remains research hotspots for addressing energy shortages and ecological pollution. Herein, by two-step hydrothermal method, a novel and noble-metal-free Mn 0.43 Cd 0.57 S/ZnSe S-scheme heterojunction was resoundingly designed and constructed for efficient photocatalytic H 2 production. Morphological tests revealed ZnSe were deposited on the Mn 0.43 Cd 0.57 S to form a tight contact interface. The H 2 evolution performance over optimal Mn 0.43 Cd 0.57 S/ZnSe was 9136.67 μmol·g −1 ·h −1 , which was severally 22.88 and 2.18 times that of pure ZnSe and Mn 0.43 Cd 0.57 S, and even far exceeded the activity of ZnSe/1%Pt. The enhanced performance of H 2 evolution was resulted from the formed S-scheme heterojunction with built-in electric fields, which could optimize the electron migration pathways for improving charge separation efficiency. This work manifests Mn x Cd 1-x S solid solution could be used as a promising non-noble metal cocatalyst to modify ZnSe for efficient photocatalytic H 2 evolution, which can be extended to modify other selenides.
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高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
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2026
·
IF 3.5
Pengfei Tian,Yunan Shen,Yuzhe Hua,Xiyu Zou,Guangmin Ren,Qingjie Guo,Hongjing Tian
Mo vacancy (V Mo ) and Se vacancy (V Se ) are doped into Bi 2 MoO 6 (BMO) and ZnSe, respectively, while they are mechanically ground and mixed to fabricate the dual S-scheme heterojunction. The lattice distortion is observed at the interface between V Mo -BMO and V Se -ZnSe/CdSe (V Se -ZCS) while XPS results confirm the construction of the dual S-scheme heterojunction V Mo -BMO/V Se -ZCS (V Mo+Se -BZCS). DFT simulation demonstrate that the doping of V Mo and V Se lead to more electrons transferring spontaneously through the heterojunction interfaces and promote the IEF strength accordingly. Both in-situ XPS and fs-TAS characterization prove the presence of a fast photoinduced charge transfer pathway from V Mo -BMO to V Se -ZnSe under LED light irradiation. V Mo and V Se function as the holes trapping center in V Mo -BMO and the electron trapping center in V Se -ZCS, respectively, thereby effectively suppressing the electron-hole recombination, which enhances the redox capability of V Mo+Se -BZCS together with the fast charge transferring. During the photocatalytic degradation experiments for the wastewater containing both tetracycline (TC) and Cr(VI), both the TC and the Cr(VI) degradation efficiency of V Mo+Se -BZCS are competitive under either LED or xenon lamp irradiation in comparison with some reported catalysts. Dual doping of V Mo and V Se were testified to amplify the bi-directional promotion effects (BPEs) between TC and Cr(VI).
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高影响因子
INTERNATIONAL JOURNAL OF PHARMACEUTICS
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2026
·
IF 6
Xia Yin,Bin Chen,Yan Qing Wang,Yan Yan,Qian Ding,Suguro Rinkiko,Yi Chun Zhu,Yi Zhun Zhu
Efficient encapsulating of highly hydrophilic low-molecular-weight compound within poly (D, L-lactic-co-glycolic acid) (PLGA) to obtain microspheres with both excellent drug loading capacity (DL) and encapsulation efficiency (EE) was substantially challenging. This study specifically aimed to enhance both the DL and EE of this hydrophilic low-molecular-weight compound S-propargyl-cysteine (SPRC) while extending its release duration through implementation of the solvent-induced phase separation (SIPS) methodology. S-propargyl-cysteine (SPRC)-loaded PLGA microspheres (SP-MSs) were fabricated using conventional emulsion solvent evaporation techniques (W/O/W and S/O/W) and compared with those prepared via SIPS. The influences of various preparation techniques on critical pharmaceutical properties of sustained-release SP-MSs, including drug loading capacity, encapsulation efficiency, in vitro release profiles, surface-localized drug content, crystal state of SPRC, and microstructural characteristics were also systematically investigated. Microspheres sythesized through SIPS demonstrated a remarkable enhancement in DL, increasing from 0.90% to 9.91%, with the corresponding EE improving dramatically from 17.8% to 99.2%. Furthermore, the SIPS approach effectively mitigated the initial burst release phenomenon commonly observed in polymeric microsphere formulations. In vivo pharmacokinetic studies in Sprague-Dawley rats confirmed the sustained-release profile of the optimized formulation, maintaining stable plasma concentrations for an extended period of seven days. These findings establish SIPS as a superior methodology for encapsulating SPRC within PLGA microspheres, effectively addressing dual challenges of low DL and EE. This investigation provides significant methodological insights for the effective encapsulation of hydrophilic low-molecular-weight therapeutic agents within PLGA-based delivery systems, offering a promising strategy for achieving prolonged sustained-release both in vitro and in vivo . Solvent-induced phase separation was employed to encapsulate highly hydrophilic S-propargyl-cysteine (SPRC) within injectable PLGA microspheres to (i) maximize EE and DL, (ii) suppress the initial burst, and (iii) achieve prolonged, controlled release of SPRC for 7 days both in vitro and in vivo . Download: Download high-res image (93KB) Download: Download full-size image
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高影响因子
Frontiers in Microbiology
·
2026
·
IF 5.8
Xiangting Li,Meng Ren,Shuhang Deng,Lingli Lei,Ping Ma,Yingshuai Liu
IntroductionPotato virus S (PVS) causes severe damage to Solanaceae plants, especially potato, due to its widespread infection and the reliance on laboratory-based reverse transcription-polymerase chain reaction (RT-PCR) testing. This work intends to develop a rapid, highly sensitive, and dual-signal platform for on-site PVS detection.MethodsWe developed a highly sensitive lateral-flow immunoassay (LFIA) capable of colorimetric and fluorescent dual-mode detection based on a novel core-shell structured probe, which consists of a porous metal-organic framework UiO-66 encapsulating rhodamine B inside and loading gold nanoparticles (AuNPs) outside with 3-aminopropyltriethoxysilane (APTES) as a spacer and glue, denoted as UR@APTES@AuNPs.ResultsThe developed LFIA enabled dual-mode PVS detection within 15 min with negligible cross-interference from Potato virus X and Potato virus Y. The platform achieved a limit of detection (LOD) of 31.2 pg/mL for the colorimetric mode and 7.6 pg/mL for the fluorescent mode, over one order of magnitude lower than the conventional AuNPs-based LFIA (LOD = 462.4 pg/mL). Furthermore, PVS in field-collected potato leaves was successfully detected by the new LFIA platform.DiscussionThe dual-mode LFIA demonstrated a rapid, cost-effective, and highly sensitive on-site screening of PVS in field samples, highlighting its great potential in practical application. This platform can be easily adapted to the detection of other pathogenic viruses by using the corresponding specific antibodies.
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高影响因子
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