Journal of Food Composition and Analysis, Год журнала: 2024, Номер 139, С. 107113 - 107113
Опубликована: Дек. 11, 2024
Язык: Английский
ACS Applied Bio Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 14, 2025
Nanomaterials and nanotechnology have garnered significant attention in the realm of agricultural production. Carbon dots (CDs), as a class nanomaterials, play crucial role field plant growth due to their excellent properties. This review aims summarize recent achievements on CDs, focusing methods preparation applications plants systems. The effects CDs seed germination, growth, photosynthesis, nutritional quality, stress resistance were studied. It has been demonstrated that can promote germination well improve photosynthetic efficiency, ultimately leading increase yield. quality treated with was significantly improved. Specifically, levels essential mineral elements, vitamins, amino acids, other constituents are beneficial human health increased notably. Additionally, show positive augmenting against environmental stresses, such drought conditions, heavy metal toxicity, high salinity. Finally, prospects challenges application systems also discussed, which provide scientific basis for future
Язык: Английский
Процитировано
5
Food Control, Год журнала: 2025, Номер 172, С. 111201 - 111201
Опубликована: Фев. 6, 2025
Язык: Английский
Процитировано
4
Langmuir, Год журнала: 2024, Номер 40(24), С. 12632 - 12640
Опубликована: Июнь 4, 2024
The poor compatibility with nonpolar lubricant still hinders the application of carbon dots (CDs) in lubrication. In addition, research proves that existence ionic structure and active groups on CDs are conducive to their lubricity. order obtain structures good oil synchronously, a kind nitrogen-doped (NCDs) was synthesized via alkylation nitrogen NCDs anion exchange. new material could exhibit tribological performance as poly alpha olefins (PAO4) additives low addition. Moreover, an liquid, [N44HH][DEHP], same chosen comparison investigate role NCD cations. surface analyses demonstrate cations phosphate ester anions adsorb friction interface play synergistic lubrication during process, which generate superior carbon-based tribofilm.
Язык: Английский
Процитировано
10
ACS Applied Nano Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 29, 2025
Liquid-like nanomaterials are emerging as unique nanolubricating materials due to their combined advantages of fluidity and nanoscale size. However, development application have been hindered by relatively complex synthesis processes. Herein, a one-step method for synthesizing liquid-like carbon dots (LCDs) was developed introducing ammonium salts into citric acid–based system. Compared solid (CDs) synthesized with acid, LCDs exhibit characteristics, which were further explored through molecular simulations. When used additives in lubricating grease, demonstrate excellent tribological performance, including friction reduction, antiwear properties, improved load-carrying capacity. This study not only introduces simple cost-effective strategy producing LCDs, advancing the CDs but also expands understanding grease.
Язык: Английский
Процитировано
1
Langmuir, Год журнала: 2025, Номер unknown
Опубликована: Март 14, 2025
Herein, functionalized carbon aerogel microspheres (CAMs) were successfully prepared by the pyrolysis of resorcinol-formaldehyde (RF) followed surface modification. First, RF carbonized to obtain CAMs. Afterward, polyphenolic compound epigallocatechin gallate (EGCG) was reacted with melamine form a poly(EGCG) layer onto CAM surface, bonding antiwear molecule dialkyl dithiophosphate (DDP) Michael addition, resulting in DDP-functionalized CAMs (DDP-CAMs). The grafting DDP improved lipophilicity CAMs, enabling stable dispersion base oil 500SN for over 10 days while also enhancing their antifriction and properties. addition 1.0 wt % DDP-CAMs resulted 34.7% reduction coefficient friction 47.5% decrease wear volume. enhanced lubrication performance can be attributed synergistic effect. On one hand, protective film generated through tribo-chemical reactions. At same time, present at contact interface exhibited nanoscale rolling self-repairing
Язык: Английский
Процитировано
1
Chemistry of Materials, Год журнала: 2024, Номер 36(10), С. 5110 - 5119
Опубликована: Май 14, 2024
Supramolecular oleogel is a promising lubricant, showing satisfactory lubrication performance and excellent stability. In this work, series of gallium-based liquid metal (GLM)-based nano-oleogels were prepared by combining alkylthiol self-assembled GLM nanodroplets (C12@GLM) α-lipoic acid ester-based dynamic covalently linked supramolecular gels. The disulfide bonds not only facilitate the formation dense gel networks but also hinder sedimentation nanoparticles forming coordinate with C12@GLM, thereby conferring great dispersion stability (more than 2 months). superior friction wear reduction [email protected] was observed, coefficient decreased to 0.108 from 0.216, volume loss reduced 73.04%, load carrying capacity increased 50 550 N, compared base oil. conjunction shear thinning creep recovery rheological properties nano-oleogels, mechanism studies revealed that are disrupted under shear, releasing oil nanoparticles. lubricating film assisted synergistic action nanoadditives lubricants, tribochemical reaction consisting iron oxides sulfides, along nanodroplets.
Язык: Английский
Процитировано
9
ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(30), С. 39896 - 39905
Опубликована: Июль 16, 2024
The dispersion stability of nanomaterials in lubricants significantly influences tribological performance, yet their addition as lubricant additives often presents challenges secondary dispersion. Here, we present a straightforward method for situ preparation N,S-codoped CDs (N,S-CDs)-based using heterocyclic aromatic hydrocarbons containing N/S elements poly(ethylene glycol) (PEG) base oil by directional ultrasound strategy. Two types N,S-CDs were successfully prepared via the treatment PEG with benzothiazole (BTA) and benzothiadiazole (BTH) separately. resultant have uniform distribution N S maintain good colloidal even after 9 months storage. can enter surface gap friction pairs then induce tribochemical reaction. Benefiting from synergistic effect activating elements, robust stable protective film consisting iron sulfides, oxides, carbon nitrides, amorphous carbonaceous compounds is formed, thus endowing N,S-CDs-based improved antiwear friction-reducing performance. Compared pure PEG, coefficient (COF) N,S-CDs(BTH)-based decreased to 0.108 0.292, accompanied 91.2% reduction wear volume, maximum load carrying capacity increased 450 150 N.
Язык: Английский
Процитировано
9
Tribology International, Год журнала: 2024, Номер 201, С. 110227 - 110227
Опубликована: Сен. 10, 2024
Язык: Английский
Процитировано
9
Carbon, Год журнала: 2024, Номер 230, С. 119578 - 119578
Опубликована: Авг. 28, 2024
Язык: Английский
Процитировано
7
ACS Applied Nano Materials, Год журнала: 2024, Номер 7(12), С. 14443 - 14451
Опубликована: Июнь 13, 2024
Herein, garlic oil-functionalized onion-like carbon (OLC) nanoparticles were successfully prepared through a multistep process involving the carbonization of candle ash followed by surface modification. Initially, OLC was heat-treating under 450 °C and then grafting polyethylenimine (PEI) using epigallocatechin gallate (EGCG) as cross-linking agent. Subsequently, oil grafted onto PEI@OLC via aza-Michael reaction with PEI, thereby obtaining (GO@OLC). The GO@OLC exhibited enhanced lubrication properties lube additive, low coefficient friction (COF) 0.11 significant reduction 76.57% in wear volume. performance is credited to rolling effect repairing well formation complex protective layer GO@OLC-induced tribochemical reactions.
Язык: Английский
Процитировано
6