JOURNAL OF THE ENERGY INSTITUTE
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2021
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IF 6.186
Dongjing Liu,Lingtao Yang,Bin Li,Jiang Wu
Rice husk , as an abundant agricultural waste and renewable biomass, is adopted to produce porous silica which is used as a potential carbon-free adsorbent for mercury emission control of coal-fired power plants. The rice husk derived porous silica (RHS) exhibits a good Hg 0 adsorption capability with Hg 0 removal efficiency above 80% in the temperature range of 60–140 °C, which is plausibly due to the big specific surface area and mesoporous structure. The mercury removal performance of RHS can be evidently reinforced by KBr modification. The optimal KBr loading value and reaction temperature are 2 wt% and 140 °C, respectively. Acidic gas components, such as NO and SO 2 , both show slight inhibitive effects on Hg 0 adsorption process probably owing to the competitive adsorption or the elimination of adsorption sites.
研究领域:
环境科学
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大气污染控制
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材料科学
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吸附技术
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能源工程
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BIOMACROMOLECULES
·
2025
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IF 5.4
Fei Jiang,Qing Huang,Xianqing Lv,Zhiming Dong,Zhuotong Wu,Lu Chen,Jianguo Li,Lihui Chen,Li Shuai,Chengke Zhao
Selective oxidation of polyol-containing cellulose is significant for the development of cellulose-derived functional materials. While conventional oxidation methods readily introduce aldehyde groups at the C2/C3 positions (accompanied by ring-opening of anhydroglucose units) or carboxyl groups at the C6 positions in cellulose, selective oxidation to generate aldehyde functionalities specifically at the C6 position remains challenging. Herein, we demonstrate that 2-Iodoxybenzoic acid (IBX) acts as an efficient and selective oxidant for converting the primary alcohol at the C6 position of anhydroglucose units to aldehyde groups under mild conditions. Monosaccharide model studies confirmed C6-specific oxidation. This method was successfully applied for the surface modification of microcrystalline cellulose (MCC, predominantly Iβ allomorph) and bacterial cellulose (BC, mainly Iα allomorph), achieving aldehyde contents of 0.96 and 0.93 mmol g-1, respectively, with 0.6 and 0.5 equiv of IBX per anhydroglucose unit. Crystallinity analysis showed that oxidation with IBX leads to a significant decrease of crystallinity but has a negligible effect on the cellulose allomorph. This study presents a novel approach for the preparation of C6-aldehyde cellulose, enabling precise, selective modification and advancing functional material development.
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Chemistry-Switzerland
·
2025
·Vol. 7
·期 5
·168
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IF 2.4
Hongwei Pang,Guangyao Liu,Xinming Wang,Shuhe Liu,Juan Wang,Jinxian Cui,Jie Zhou,Ziyan Zhou
Photocatalytic oxidation technology harnesses solar energy for pollutant mineralization, presenting significant potential for environmental applications. A critical bottleneck remains the development of high-performance photocatalysts. This study centers on the non-metallic semiconductor material graphitic carbon nitride (g-C3N4). To overcome the inherent limitations of pristine g-C3N4, including limited surface area, rapid charge carrier recombination, and inadequate active sites, it implements surface engineering strategies employing acidic (H2SO4) or basic (K2CO3) agents to modulate microstructure, introduce defect sites (cyano/amino groups), and optimize bandgap engineering. These modifications synergistically enhanced photogenerated charge carrier separation efficiency and surface reactivity, leading to efficient dye degradation. Notably, the K2CO3-modified catalyst (g-C3N4-OH), synthesized with a mass ratio of m(g-C3N4):m(K2CO3) = 1:1, achieved 92.2% Rhodamine B degradation within 50 min under visible light, surpassing pristine g-C3N4(20.6%), the optimized H2SO4-modified sample (g-C3N4-HS, 60.9%), and even template-synthesized g-C3N4-SBA (79.6%). The g-C3N4-OH catalyst demonstrated exceptional performance under both visible light and natural solar illumination. Combining facile synthesis, cost-effectiveness, superior activity, and robust stability, this work provides a novel approach for developing high-efficiency non-metallic photocatalysts applicable to dye wastewater.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Huan Ma,Lei Wang,Kuan Wang,Yuan-Xiao Du,Ju-Ju Zhang,Zhen-Hong He,Weitao Wang,Huan Wang,Zhao-Tie Liu
Photocatalytic CO₂ reduction to produce high-value-added chemicals is a promising strategy, however, fabricating highly efficient and economical catalysts is a critical challenge. Herein, an in-situ metal Bi engineering strategy during the construction process of double‑bismuth-based S-scheme heterojunctions is developed via a straightforward solvothermal approach. The as-prepared Bi/BiOBr/Bi 2 MoO 6 S-scheme heterojunctions exhibit abundant enriched oxygen vacancies (OVs) and a pronounced Bi surface plasmon resonance (SPR) effect due to a high dispersion of the in-situ formation process, achieving excellent photocatalytic performance of CO 2 -to-CO conversion. Surprisingly, the photocatalytic activity of CO 2 -to-CO over Bi/BiOBr/Bi 2 MoO 6 is up to 71.91 μmol·g −1 ·h −1 , with a high selectivity of 97.04 %. This represents enhancements of 141- and 1.63-fold compared to pure Bi 2 MoO 6 and Bi/BiOBr, respectively. The outstanding photocatalytic CO 2 reduction performance can be ascribed to the synergistic enhancement effects of S-scheme heterostructures, the pronounced Bi SPR effect, and the enriched OVs engineering. Theoretical calculations and in situ spectroscopy analyses unveil that the mechanism of enhanced photocatalytic CO 2 reduction achieved through in-situ metallic Bi and OVs engineering on the S-scheme heterojunction. This meticulous catalyst design provides insights into a novel strategy for the efficient and precise customization of unique S-scheme Bi-based photocatalyst with enriched OVs and Bi SPR effects, opening new avenues for practical photocatalysis applications.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Feiyang Xu,Ting Cui,Haidong Shen,Hongfu Liu,Jianfei Xie,Kai Yang,Yugui Tao
Multidrug-resistant (MDR) bacterial infections remain a critical public health concern worldwide, with conventional antibacterial strategies presenting limitations such as inconsistent target localization, suboptimal therapeutic efficiency, and progressive antimicrobial resistance development. Nitric oxide (NO), a bioactive molecule, exhibits potent antibacterial effects, resulting in the emergence of NO-based gas therapy as a promising and innovative therapeutic strategy. However, these therapies present the principal challenge of effective NO delivery, owing to its short half-life and limited diffusion capacity. Hence, this study aimed to develop AI‑molybdenum disulfide (L-Arg/IR780@MoS 2 ) nanoflowers (NFs) employing L-arginine (L-Arg) as an endogenous NO precursor and MoS 2 as a dual carrier for L-Arg and IR780 iodide (IR780). Following near-infrared irradiation during photodynamic therapy, generated reactive oxygen species initiated an oxidation cascade for L-Arg-to-NO conversion. The produced NO, in combination with photothermal therapy, modulated the bacterial microenvironment. This significantly altered the expression of key genes in MDR bacteria associated with nucleotide metabolism and biofilm formation, thereby effectively disrupting biofilms and suppressing bacterial growth. Furthermore, the AI-MoS 2 NFs exhibited notable ancillary therapeutic benefits, including anti-inflammatory activity, enhanced re-epithelialization, increased collagen deposition, and angiogenesis modulation, which collectively accelerated wound healing. Altogether, the findings of this study present a synergistic therapeutic strategy designed to address the dual challenges posed by bacterial biofilms and antimicrobial resistance.
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APPLIED SURFACE SCIENCE
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2025
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IF 6.9
Wenbin Ruan,Jianli Chen,Shijian Zhang,Xiuxiu Huang,Xiang Li,Shuangshuang Huai,Congliang Cheng,Mingxuan Qu,Hewen Liu,Xiufang Wang,Ping Li
Here, the Bi 24 O 31 Br 10 -based composite photocatalysts modified by bimetallic Bi and Mo nanoparticles (NPs) are designed and prepared (Bi-Mo-Bi 24 O 31 Br 10 ). 2D ultra-thin Bi 24 O 31 Br 10 nanosheets with suitable band gap and good chemical and optical stability are selected as the main catalyst to drive N 2 fixation by generating hot carriers. The Bi NPs in the Bi 24 O 31 Br 10 nanosheets serves as a buffer tank for electrons to improve the efficiency of electron transfer. Meanwhile, the Mo NPs serve as catalytic centers for N 2 adsorption and activation, working synergistically to enhance the overall reaction efficiency. Resulting from semiconductor-to-metal −to-metal electron transfer path and the Mo metal adsorption and activation mechanism, the nitrogen fixation rate of the Bi-Mo-Bi 24 O 31 Br 10 photocatalyst is as high as 191.2 μmol g −1 h −1 , and it is 7.2 times compared to pure Bi 24 O 31 Br 10 . This work creates a novel framework for the rational design of highly efficient visible-light-responsive nitrogen fixation catalysts.
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CARBOHYDRATE POLYMERS
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2025
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IF 12.5
Yixiu Ni,Ting Feng,Shengye You,Aokang Zhang,Feng Liang,Wei Dong,Yizhong Bao
Current treatments for diabetic wounds affecting the oral mucosa frequently yield insufficient results. Key challenges complicating recovery include bacterial colonization, oxidative damage, and impaired blood vessel formation during tissue repair. To bridge this substantial therapeutic void, our research introduces an injectable hydrogel (named as SQD1) engineered specifically to promote healing within diabetic oral ulcers. This innovative biomaterial combines a polysaccharide network derived from dialdehyde scleroglucan and quaternized chitosan, further enhanced by incorporating shikonin nanoparticles. Upon local injection, SQD1 rapidly transitions into a protective hydrogel layer. The dressing demonstrates robust antimicrobial efficacy alongside potent scavenging of reactive oxygen species. These combined actions effectively transition the lesion environment away from chronic inflammation toward a productive proliferative healing state. A significant advantage involves the material's inherent biodegradability following therapy completion, guaranteeing total bodily assimilation once its wound-healing functions conclude. Collectively, results from both laboratory and animal studies confirm that SQD1 markedly hastens repair processes in oral mucosal injuries. Representing a significant stride forward, this hydrogel technology offers a highly promising approach for managing diabetic oral ulcerations, ultimately aiming to enhance patient prognoses associated with this difficult pathology.
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Food Chemistry-X
·
2025
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IF 8.2
Henan Wei,Xiaoqun Zeng,Yangying Sun,Changyu Zhou,Qiang Xia,Zhen Wu,Hongbing Yan,Yangyang Hu,Daodong Pan
Reducing salt in reconstructed duck ham while maintaining its texture is still challenging. This study developed a novel salt-reducing strategy using lyophilized emulsion complexes of myofibrillar protein (MP) and gum Arabic (GA) (4:0, 3:1, 2:2, 1:3 and 0:4) with TGase as control. Spectroscopic analysis revealed that MP-GA complexation enhanced the protein unfolding, particularly the balanced protein/polysaccharide ratio at 3:1 (M 3 G 1 ). M 3 G 1 incorporation favored the MP association and meat integration macroscopically, increasing water holding capacity by 8.02 % and gel strength by 143.3 % versus control. Sensory and electronic tongue analysis confirmed M 3 G 1 maximized saltiness perception score (8.2) than other treated groups (7.4–7.8) and the control (5.4) through heterogeneous sodium distribution. Sodium release kinetics and porcine tongue perception further reflected that M 3 G 1 rendered prolong Na + releasing out for saltiness enhancement. Therefore, MP-GA complexes with manipulated ratio (especially M 3 G 1 ) can simultaneously enhance texture and saltiness perception, offering a promising alternative for low-sodium duck ham.
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Current Research in Food Science
·
2025
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IF 7
Jiankang Lu,Ruihua Zhang,Mingyan Ai,Chunlan Zhang,Shuting Li,Ruili Zhang,Weihua Wang,Zhiqiang Zhou,Yiming Jia,Zuoli Zhang,Shugang Li
The efficient loading of proteins on bioactive substances had been a research hotspot in the fields of food science and industry in recent years. The complex of ultrasound-assisted phosphorylated cantaloupe seed protein isolate (UP-CSPI) and curcumin (CUR) was prepared by pH shift method to investigate the effects of different concentrations of CUR on the structure and functional properties of UP-CSPI. The results showed that with the increase of CUR concentration, the zeta potential, the antioxidant activity and emulsifying performance of the complex improved. The interaction between CUR and UP-CSPI was a spontaneous reaction driven by Gibbs free energy (ΔG<0). The enthalpy change (ΔH) and entropy change (ΔS)>0, indicating mainly hydrophobic interaction. Furthermore, CUR caused changes in the secondary structure of the UP-CSPI, β-turns increased from 38.33 % to 45 %–47 %, random coils decreased from 25.85 % to 13 %–14 %. In conclusion, the binding of CUR to proteins through pH shift had solved the problem of CUR instability and also provided new insights for the development and application of plant protein-based delivery systems.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Jiawei Zhang,Kang Sun,Gaoyue Zhang,Xinchen Lu,Jian Zhao,Ruizhen Wang,Haihong Xia,Kui Wang,Kaili Zhang,Jianchun Jiang
Lignin possesses intrinsic ultraviolet (UV) shielding properties, making it one of the most promising natural materials for eco-friendly sunscreen development. However, the wide molecular weight distribution, complex structure, dark color, and poor dispersibility of industrial sulfonated lignin (LS) have hindered its commercial application in cosmetic formulations. In this study, a green and efficient antisolvent approach using ethanol was developed to simultaneously fractionate LS and fabricate lignin nanoflowers (LSNFs). The results revealed that the low-molecular-weight fraction, LSNF 3 , exhibited a high density of oxygen-containing functional groups (phenolic hydroxyl content = 2.12 mmol/g), superior antioxidant activity (RSI = 6.45), and a significantly lighter appearance—with brightness and whiteness values increased by 253.5 % and 286.2 %, respectively, compared to LS. Molecular dynamics simulations further elucidated the self-assembly mechanism of nanoflower formation. Finally, LSNFs were incorporated into cream and SPF15 sunscreen formulations. The SPF value of 10 % LSNF 3 /Sunscreen reached as high as 67.8, demonstrating a green and cost-effective pathway for the application of lignin in the field of sun protection.
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Journal of Materials Chemistry A
·
2026
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IF 9.2
Chunlin Ke,Siyu Song,Shenghao Li,Fengliang Wang,Ruiqi Fang,Xin Zhao,Chao Wang
High-entropy alloys (HEAs) offer immense potential for catalytic transformations, yet they suffer from severe sintering and limited active site accessibility due to their typically dense architectures. Herein, we present a facile molten salt-assisted pyrolysis strategy to confine quinary CoNiCuPtPd HEA nanoparticles within a metal–organic framework (MOF)-derived support. By using UiO-66-NH2 as a precursor, the introduced amino groups are transformed into pyridinic nitrogen sites during pyrolysis, which, along with the abundant oxygen vacancies generated in the ZrO2 phase, creates a robust porous support UNH-730. Comprehensive characterization studies (XPS and H2-TPR) confirm that the pyridinic N sites strongly anchor the metal species, facilitating the formation of homogeneously dispersed HEA nanoparticles (∼15 nm) and preventing agglomeration. In situ DRIFTS and catalytic evaluation reveal a synergistic mechanism: basic N sites and oxygen vacancies significantly enhance CO2 adsorption/activation, while the HEA sites promote H2 dissociation. Crucially, we demonstrate that light irradiation functions purely as a thermal source rather than triggering photogenerated electron–hole pairs. Consequently, the optimal CoNiCuPtPd@UNH-730 catalyst delivers a remarkable CH4 yield of 228.36 mmol g−1 h−1 with 77.8% selectivity at 550 °C under photothermal conditions substantially outperforming the ligand-free counterpart. This work establishes a novel paradigm for stabilizing multi-metal HEAs on functionalized porous carbon/oxide composites for energy conversion applications.
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Food Frontiers
·
2026
·Vol. 7
·期 2
·e70255
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IF 6.3
Yan Liu,Zhongyuan Wei,Qiao Wang,Xin Liu,Zhiyong Gong
Polystyrene nanoparticles (PS-NPs) size determines their adsorption by Chlorella vulgaris , which induces size-dependent changes in cell membrane properties, and these two effects synergistically regulate the alga's heavy metal adsorption capacity via the carrier effect of PS-NPs. By using laser scanning confocal microscopy (LSCM), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and nanoparticle tracking analysis (NTA), it assessed resultant changes in cellular membrane parameters and explored the influence of different-sized PS-NPs, acting as carriers, on algal adsorption of heavy metals. C. vulgaris achieved adsorption for three nanoparticle size fractions within 1 h. Following uptake by C. vulgaris , PS-NPs of different sizes exhibited distinct intracellular and extracellular distribution patterns. Smaller NPs entered cells, while larger ones remained surface-bound. Following adsorption of polystyrene nanoparticles of varying sizes, C. vulgaris exhibited alterations in cell membrane parameters, including increased hydrophobicity and decreased permeability. These changes were size-dependent. Notably, PS-NPs of different sizes demonstrated distinct capacities for adsorbing Hg 2+ , Cd 2+ , and Pb 2+ . PS-NPs were found to influence the adsorption of these heavy metals by C. vulgaris through altering cell membrane parameters and acting as carriers for the metal ions, thereby modifying the alga's equilibrium adsorption capacity.
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