COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Zhenfeng Xie,Yi Wu
Emulsion-based carriers have been widely studied for the co-encapsulation of active ingredients with different partition coefficient (Log P). However, it is challenging to encapsulate active ingredients with low Log P values in emulsified oil droplets. In this study, (-)-epigallocatechin gallate (EGCG, 160 µg/g*emulsion, Log P 2.38) and resveratrol (Res, 320 µg/g*emulsion, Log P 2.57), as models with low Log P, were co-encapsulated in emulsified oil droplets for the first time by peppermint essential oil (PEO) mediation. During storage process, EGCG and Res consistently remain co-located inside the emulsified oil droplets. However, both EGCG and Res migrated towards the inner layer of the interface of emulsified oil droplets along with PEO. Res exhibited better stability compared to EGCG, while the degradation of EGCG occurred within the emulsified oil droplets. Furthermore, when co-localized with Res, the degradation rate of EGCG slowed down. PEO did not degrade during storage, and over 98 % of PEO was encapsulated within the emulsified oil droplets. This is the crucial reason for maintaining the stability of SC-stabilized emulsion and achieving high encapsulation efficiency of active ingredients. This provides a green and simple strategy for co-encapsulation of active ingredients with Log P lower than 3.0 within emulsified oil droplets.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Fulin Wang,Helin Hua,Hui Jia,Dingying He,Zhongyou Jiang,Jiaxin Cao,Shanshan Dong,Zhenxing Zeng,Suhua Chen
The construction of heterojunction is considered to be an effective way to promote the photocatalytic activity, while it is always challenging due to the mismatched lattices of heterojunctional materials and results in an unsatisfactory enhancement of charge carrier separation. It is critical to overcome that lattice mismatch and establish charge transfer channels in heterojunction for achieving high charge transfer and separation. In this study, a red phosphorus/phosphorus doped graphitic carbon nitride (RP/P-CN) type I heterojunction was constructed to boost interfacial charge transfer for Cr(Ⅵ) photoreduction through in situ growing RP on g-C 3 N 4 nanosheets. The formed P − N bonds around interfaces in the RP/P-CN allowed photoexcited charge to rapidly transfer from the conduction band of P-CN to that of RP, which contributed to the significant achievement of Cr(Ⅵ) reduction. The constructed interfacial charge transfer channels largely promoted the photoexcited charge carrier separation in the RP/P-CN. Additionally, the simultaneous RP formation and P doping significantly enhanced the visible light response and the adsorption efficiency of Cr(Ⅵ). As a result, RP/P-CN 1:5 could achieve 99.1 % removal of Cr(Ⅵ) after 20-min visible light irradiation with an achieved apparent kinetic rate constant (k app ) of 0.2289 min −1 , which were much better than the 19.2 % of Cr(Ⅵ) removal by pure g-C 3 N 4 and presented a 21-fold higher k app than pure g-C 3 N 4 (0.0108 min −1 ) achieved, respectively. This study provides a new strategy to design an efficient g-C 3 N 4 based metal-free heterojunction for Cr(Ⅵ) photoreduction.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2024
·
IF 5.3
Yanrong Cheng,Chunyang Liu,Xia Guo
An aqueous two-phase system (ATPS) has been considered a green separation system. How to improve the separation efficiency and selectivity of ATPS has always been a widely concerned issue. However, so far, the construction of selective ATPS still remains a challenging task. Calixarenes are the third generation of supramolecular compounds. They exhibit significant advantages in recognizing small molecules. In the present study, calixarene was used for the first time to prepare selective ATPSs, which are sulfonatocalix[4]arene (SC[4])/1-decyl (or hexyl)-3-methylimidazolium bromide ([C n mim]Br)/trisodium citrate (Na 3 C 6 H 5 O 7 ) ATPS and SC[4]/1-decyl-3-methylimidazolium bromide ([C 10 mim]Br) ATPS. Ten aromatic molecules, including theobromine, syringic acid, vanillin, vanillic acid, theophylline, cephalexin, L-tyrosine, L-phenylalanine, S-mandelic acid, and L-tryptophan, were selected as model extracts to evaluate the selectivity of these SC[4]-based ATPSs. The results showed that among these 10 extracts, the SC[4]/[C n mim]Br/Na 3 C 6 H 5 O 7 ATPS has high selectivity toward vanillin, and the SC[4]/[C 10 mim]Br ATPS has high selectivity toward L-phenylalanine. Specifically, in the SC[4]/[C n mim]Br/Na 3 C 6 H 5 O 7 ATPS, the partition coefficient of vanillin can reach 315.7, while the partition coefficients of the other 9 extracts are around 2.4–23.1 In the SC[4]/[C 10 mim]Br ATPS, the partition coefficient of L-phenylalanine is much higher than 1 (i.e., 4.38–5.55), while the partition coefficients of the other extracts are below or around 1. The 1 H NMR spectra and response surface plots based on the Box-Behnken design further demonstrate the role of [C n mim]Br-SC[4] complex in the selectivity of these ATPSs.
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Manjia Lu,Shirong Sun,Xiaoya Li,Qiyu Liu,Wenli Zhang,Xueqing Qiu
Two distinctive aromatic units, p − coumarate and ferulate, exist in corncob lignin, which have the potential to yield p − coumaric acid ( p CA) and ferulic acid (FA). Although p CA and FA are primarily extracted from corncob lignin utilizing strong acids and bases, extremely acidic or alkaline conditions result in the disruption of the aromatic unit structure of the residual lignin. Herein, lactic acid coupled with choline chloride was utilized as acidic deep eutectic solvent (DES), while K 2 CO 3 with glycerin was used as alkaline DES, thereby facilitating the extraction of p CA, FA and lignin from corncob in a mild environment. Furthermore, the differences in monophenol yields from pyrolysis of lignin were investigated. The alkaline DES exhibited a stronger extraction capacity for these acids. The yields of p CA and FA were 15.47 mg/g and 7.44 mg/g (based on the weight of corncob). Contrastively, the subsequent pyrolysis process yielded a higher amount of monophenol from the lignin extracted using acidic DES, with notably greater quantities of low methoxy phenolic monomers. This renders it a preferred option for subsequent processing into high−calorific biofuels. This work presents a straightforward and efficient strategy for the deconstruction of the lignin from corncob to enhance the utilization value of agricultural wastes.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Particuology
·
2024
·
IF 4.1
Hang Li,Kaisheng Yao,Tianhang Liu,Weiwei Lu,Haili Zhao
Au hierarchical architectures with special morphology and structures are strongly desired in varied applications. Herein, a simple synthesis method was developed for the one-step preparation of Au micronails (MNs) at the planar liquid-liquid interface under mild conditions. The well-defined Au MNs were grown and constructed at CHCl 3 –H 2 O interface at room temperature using aniline in CHCl 3 as reducing agent and HAuCl 4 in H 2 O as precursor and no surfactant or seed is required. The intriguing Au MNs with rough surface consist of big heads and thin rods, just like iron nails in outline. Furthermore, through simple changing the reagent concentrations, the length and surface roughness of Au MNs can be adjusted conveniently. The effects of a series of factors on the morphology and structure of the products are studied in detail. With p -aminothiophenol as a molecular probe, the as-obtained Au MNs all exhibit dramatically improved surface enhanced Raman scattering sensitivity and high reproducibility, the enhancement factor and limit of detection of Au MNs are 5.4 × 10 5 and 1.0 × 10 −10 , respectively.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2024
·
IF 5.4
Zixuan Huang,Xin Ge,Zhen Liu,Biao Shi,Pengyang Wang,Ying Zhao,Xiaodan Zhang
Wide-band-gap perovskite solar cells (PSCs) are considered an important part of multijunction tandem solar cells and have attracted extensive research in related fields. For blade-coated inverted wide-band-gap PSCs, nonradiative recombination losses in the perovskite/charge transport layer interface are serious. The performance of blade-coated wide-band-gap perovskite solar cells has hindered the industrialization of tandem solar cells, especially for two-terminal perovskite/silicon tandem solar cells (TSCs). To reduce these losses as much as possible, the choice of hole transport layers and perovskite films post-treatment is extremely important. Herein, we used two strategies: a hybrid self-assembled monolayer as the hole transport layer and surface passivation post-treatment to obtain highly efficient and stable PSCs by the blade-coating method. The champion device demonstrated an efficiency of 21.30% for p-i-n PSCs, which is one of the highest efficiencies for band gaps above 1.67 eV among all of the scalable preparation methods employed.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Chemistry
·
2024
·
IF 14
Peng Wang,Shafidah Shafian,Feng Qiu,Xiao Zhang,Yuping Zhao,Bin Wu,Kyungkon Kim,Yong Hua,Lin Xie
2,2′,7,7′-Tetrakis( N , N -di(4-methoxyphenyl)amino)-9,9′-spirobifluorene (Spiro) is an essential hole-transport material used in perovskite solar cells (PSCs). However, the redox reaction of Spiro and its impact at the interface with the metal electrode are not yet fully understood. In this study, we introduced a crystalline additive (CA) to regulate the redox process of Spiro and its interface with an Ag electrode. Our findings indicate that CA functions as a molecular scaffold, improving the crystallinity and stability of radicals in Spiro throughout the entire redox reaction. This enhancement increases the hole mobility of Spiro and strengthens the internal electric field, thereby improving hole extraction and transport efficiency at both interfaces. Moreover, the optimized redox reaction of Spiro reduces energy loss at the Ag electrode, significantly boosting the power conversion efficiency to 25.21%. Furthermore, CA mitigates the aggregation of lithium salt and enhances the stability of the device. Our findings contribute to a deeper understanding of hole-transport mechanisms of Spiro and emphasize the importance of reducing energy loss at the Spiro/Ag electrode interface in PSCs.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2024
·
IF 5.4
Chang Su,Guoqiang Liu,Qiang Sun,Lei Wen,Zeyu Chen,Meiju Zhao
The series P2-type Mn–Fe-based layered oxide materials (Na2/3MnxFe1–xO2) for sodium-ion batteries are regarded as potential commercial cathode materials due to their high specific capacity and low cost. However, the P2-type layered oxide cannot avoid some phase transformation during the charge–discharge process, which results in poor structural reversibility and low-capacity retention. Moreover, a high capacity usually means more insertion/extraction of Na+, which results in large changes in the lattice volume and poor cycling stability. Herein, a new strategy containing oxygen vacancies and Mg substitution is designed to obtain high-performance sodium storage of Mn–Fe-based layered oxide. The P′2-type Na0.67Mn0.85Fe0.1Mg0.05O2−δ (Ovs & Mg-sub) cathode material is synthesized by the above-mentioned dual-modification strategy. The effect of oxygen vacancies and Mg substitution on the structural evolution during the charge–discharge process is further investigated by in situ X-ray diffraction techniques. It demonstrates that Ovs & Mg-sub has reversible structural transformation and smaller lattice volume changes, thus further exhibiting prominent electrochemical properties. The initial discharge specific capacity reaches 190.2 mAh g–1 at a current density of 20 mA g–1 and remains at 152.9 mAh g–1 at a current density of 100 mA g–1 after 100 cycles. In addition, it has a superior rate capability of 88.9 mAh g–1 at a current density of 2000 mA g–1.
✓ 已验证
产品关联
DOI
高影响因子
BIOMACROMOLECULES
·
2024
·
IF 5.5
Yuhan Yang,Yangyi Chen,Yue Wei,Wei Wu,Qing Wang,Tianyun Xue,Xiaoyan Zhang,Wei Chen,Wei Zhang
A drug delivery system based on silybin-conjugated chitosan (CS-SB) polymeric micelles was developed to improve the oral absorption of doxorubicin (DOX). SB was grafted to CS via succinic acid, and CS-SB was identified by 1H NMR and FT-IR. The DOX-loaded micelles were prepared by self-assembly, and the characteristics of micelles, including a small particle size of 167.8 ± 2.3 nm, a high drug loading capacity of 8.59%, and a low critical micelle concentration of 1.3 × 10–5 g/mL, were demonstrated. The micelles showed oral bioavailability of up to 193% versus DOX·HCl. The cytotoxicity test showed the biosafety of CS-SB and the potential of reductive DOX-induced cardiotoxicity. The inhibition of P-gp efflux and CYP3A4 enzyme in CS-SB micelles was confirmed by cellular uptake and enzyme activity inhibition tests. The endocytosis process of micelles was revealed by an endocytosis inhibition test. The findings exhibited the potential of CS-SB micelles in drug delivery.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2025
·
IF 9.5
Xiaoyan Lu,Xinhui Jiang,Jindou Hu,Junhong Li,Anjie Liu,Zhenjiang Lu,Jing Xie,Yali Cao
The p–n type charge transfer pathway plays an active role in efficient carrier separation and enhancement of photocatalytic activity, but it will also reduce the redox ability of photogenerated carriers. Herein, the anchored amino molecular layer acts as a heterojunction conversion switch to transform Cu2O/T-N from a p–n to an S-scheme heterojunction. Following this transformation, the redox ability of carriers can be dramatically enhanced: the reduction potential of photogenerated electrons increases from −0.49 eV to −1.68 eV, and the oxidation potential of photogenerated holes increases from 0.32 eV to 2.33 eV. Therefore, the optimized Cu2O/T-N S-scheme heterojunction photocatalyst exhibits superior photocatalytic performance for hydrogen evolution (up to 41.85 mmol g−1, 64 times higher than that of pure TiO2) and nitrogen fixation (as high as 18 mmol gCu2O−1 h−1). Moreover, the post-conversion carrier transfer pathway also prevents the accumulation of holes on Cu2O, alleviating the photocorrosion caused by hole oxidation. Hence, the catalytic activity remains stable during photocatalytic cycling for up to 50 h. This study provides a straightforward and practical method for enhancing the redox capacity of photocatalysts.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Junyan Wei,Jianqiao Xu,Xinyuan Wei,Dongmei Zhou,Zhongbo Wei,Xiaosheng Tang,Qing Zheng,Zunyao Wang,Ruijuan Qu
Microplastics are widespread in aquatic environments and, due to their small size and similar density to water, often coexist with suspended particulate matter (SPM). Both microplastics and SPM act as carriers, playing key roles in the migration and transformation of organic contaminants. However, most studies have focused on isolated systems, necessitating an investigation into how co-existing microplastics affect the phototransformation behavior of hydrophobic pollutants on carrier surfaces. In this study, a model system was constructed with the most commonly detected polyethylene (PE) microplastics, dichlorodiphenyltrichloroethane (o,p’-DDT), and Yangtze River SPM. The results showed that the introduction of PE into the SPM system notably accelerated the photodegradation of o,p’-DDT, with a synergistic promotion between PE and SPM. Utilizing chemical probes, quenchers, and electrochemical experiments, we found that PE facilitated the electron transfer in SPM, thereby enhancing the generation of reactive oxygen species (ROS) and ultimately, leading to the synergistic effect. By combining liquid chromatography-mass spectrometry and gas chromatography-mass spectrometry, we identified 17 intermediates and proposed three main transformation pathways: elimination, hydroxylation, and dechlorination. The potential mechanisms by which ROS induced these reaction pathways were further validated by density functional theory calculations. Moreover, PE formed interaction products with o,p’-DDT. Initial environmental risk assessment using VEGA and EPI Suite software indicated the products became less toxic, but were more likely to remain in water. This study deepened the understanding of the photochemical effects of microplastics and provided new insights into the environmental fate and risk of organic pollutants.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Xing Lai,Chun Wang,Huaiyin Chen,Tianxue Zhu,Jianying Huang,Changfa Xiao,Yuekun Lai,Weilong Cai
Organic solvent nanofiltration (OSN) is a green, energy-saving, and highly efficient emerging membrane separation technology, and there is an urgent need for robust, easy-to-process OSN membranes with high permeance and small solute selectivity for industrial applications. Herein, we propose a new strategy for accurately designing novel OSN membranes. Specifically, a polyamide (PA) interlayer was synthesized in-situ on the surface of homogeneous reinforced poly(p-phenylene terephthamide) (PPTA) hollow fiber membrane by interfacial polymerization (IP) using both ultra-low concentrations piperazine (PIP, 0.05 wt%) and trimesoyl chloride (TMC, 0.005 wt%), and then a defect-free and dense PPy layer was deposited on top of the hydrophilic PA interlayer by chemical vapor deposition (CVD) process to prepare PA/PPy composite membranes with spherical cluster or strip cluster “Turing-like” structure. The resulting PA/PPy composite membranes presented an excellent high selective permeability, the dimethylacetamide (DMAc) permeability was 21.1 L·m −2 ·h −1 ·MPa −1 , and the molecular weight cut-off (MWCO) was as low as 185 Da. A 30-hour OSN test at elevated temperatures (80 °C) and in organic solvent (DMAc), as well as a one-month immersion test in ethanol and DMAc at room temperature, demonstrated superior separation performance and structural stability of the membranes, indicating their application potential in harsh solvent systems. Our novel method for developing nanoscale ordered structured PA/PPy composite membranes offers great potential for the development of multilevel structural designs in the preparation of high-performance OSN membranes with potential industrial applications.
✓ 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）