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absorption; electron paramagnetic resonance spectroscopy; irradiation; pH; photocatalysis; photocatalysts; photoluminescence; photolysis; pollution control; synergism; tetracycline; transmission electron microscopy; ultraviolet-visible spectroscopy; wastewater; China
Abstract:
... Photocatalytic degradation was considered as a best strategy for the removal of antibiotic drug pollutants from wastewater. The photocatalyst of ABC (Ag₂CO₃/BiOBr/CdS) composite synthesized by hydrothermal and precipitation method. The ABC composite used to investigate the degradation activity of tetracycline (TC) under visible light irradiation. The physicochemical characterization methods (e.g. ...
absorption; acid orange 7; biochar; ciprofloxacin; energy efficiency; hot water treatment; irradiation; methyl orange; photocatalysis; photocatalysts; pollution; probability; rhodamines; solar energy; sulfur; tetracycline; China
Abstract:
... Removing large concentrations of organic pollutants from water efficiently and quickly under visible light is essential to developing photocatalytic technology and improving solar energy efficiency. This study used a simple hydrothermal method to prepare a non-metallic, S-doped NaTaO₃ (S-NTO) photocatalyst, which was then loaded onto biochar (BC) to form a S-NTO/BC composite photocatalyst. After u ...
... Efficient and robust photocatalysts for environmental pollutants removal with outstanding stability have great significance. Herein, we report a kind of three dimensional (3D) photocatalyst presented as Z-scheme heterojunction, which combining TiO₂ and ZnₓCd₁₋ₓS with graphene aerogel to contrast TiO₂-ZnₓCd₁₋ₓS graphene aerogel (TSGA, x=0.5) through a moderate hydrothermal process. The as-prepared ...
... BiFeO₃ (BFO), as a kind of narrow band-gap semiconductor material, has gradually emerged advantages in the application of photocatalysis. In this paper, Ca doped BFO nanoparticles Bi₀.₉Ca₀.₁FeO₃ (BCFO) were prepared by sol-gel method. And BCFO and CdS nanocomposites with two morphologies were obtained by controlling the time of loading CdS under a low temperature liquid phase process. It is found ...
ambient pressure; carbaryl; irradiation; photocatalysis; solar radiation; surface area; yttrium; China
Abstract:
... In this study, a photocatalytic material consisting of ZnO and yttrium-doped ZnO (YZO) nanoparticles was obtained via a facile precipitation conducted under ambient pressure whereby crystalline ZnO was successfully doped with yttrium. YZO had a hexagonal wurtzite polycrystalline structure with smaller crystal and grain sizes than ZnO, which in turn meant larger specific surface area and pore volum ...
irradiation; lighting; photocatalysis; solar radiation; tetracycline; toxicity
Abstract:
... Developing synergistic systems and taking environmental risks into account are two necessary aspects of being considered to remove persistent organic pollutants efficiently. Thus, a combined catalytic system uniting the Fenton-like process and simulated solar-light photocatalysis has been constructed. Moreover, a series of NiCo₂O₄/HP-UiO-66 catalysts (yNiCo-DUx) were also fabricated to improve tet ...
ammonia; electric current; electron paramagnetic resonance spectroscopy; electron transfer; energy; irradiation; light; nanosheets; nitrogen fixation; oxygen; photocatalysis; photocatalysts
Abstract:
... Oxygen vacancy modulation holds great promise for enhancing the photocatalytic activity for efficient nitrogen fixation under mild conditions. In this work, the two-dimensional WO₃–ₓ nanosheets with rich oxygen vacancies were prepared using solvothermal synthesis. The WO₃–ₓ nanosheets (rich oxygen vacancies) display nice photocatalytic activity for N₂ reduction to ammonia with a high yield rate of ...
... Three-dimensional carbon aerogel (CA800) was prepared from waste corrugated cardboard (WCC) by the procedure of slurrying, solvent replacement, drying, and carbonization in turn, and the product was explored as an all-in-one evaporator for solar steam generation without bulk water. Carbonization of the precursor was investigated using thermogravimetric analyzer coupled with Fourier transform infra ...
adsorption; biocompatible materials; biopolymers; bone formation; bones; cell proliferation; cell viability; chitosan; hemolysis; irradiation; light; riboflavin; three-dimensional printing; water solubility
Abstract:
... Although chitosan is the second most abundant natural polymer on earth, with a wide range of biomaterial applications, its poor water solubility limits general printing process. We selected water-soluble methacrylated glycol chitosan (MeGC) as an alternative and prepared a MeGC-based MG-63 cell-laden bioink for 3D printing using a visible light curing system. Optimal cell-laden 3D printing of MeGC ...
... This study hoped to use microwave and ultrasound combined with 4D printing technology to promote the conversion of ergosterol into vitamin D₂ in printing model with mushroom scraps. Under the UV irradiation, the conversion was different in the printed model with different irradiation areas and different physical field pretreatment. Compared with raw materials, vitamin D2 concentrations in the prin ...
... Rapid heat loss and fast charge carrier recombination constitute two crucial issues that hinder the development of efficient solar energy utilization and conversion over the semiconductor in a photothermal catalytic system. Inspired by energy production from waste water, we designed an advanced 3D C@TiO₂ multishell nanoframe (MNF) photocatalyst. Its unique structural features of heat confinement a ...
drinking water; energy; evaporation; graphene; hydrogels; hydrophilicity; hydrophobicity; irradiation; seawater; sewage; steam; volatilization; water content; water shortages; water treatment; wettability
Abstract:
... Solar-driven water generation is a sustainable water treatment technology, helping to relieve global water scarcity issues. However, this technology faces great challenges due to the high energy consumption of water evaporation yielding low evaporation rates. Here, a covalent organic framework (COF)/graphene dual-region hydrogel, containing hydrophilic and hydrophobic regions in one material, is d ...
... Biological substrates and organelle multi-targeted photosensitizers for ultra-efficient cancer treatment through photodynamic therapy (PDT) are highly desirable. Herein, a multiple pyridinium-anchored photosensitizer containing the triphenylamine unit, TPA-2PI, has been designed and utilized for DNA and mitochondria dual-targeted two-photon-excited bioimaging and PDT. TPA-2PI possesses an ultrahig ...
... Developing materials that possess colorimetric responses to external stimuli is a promising strategy for addressing the current challenges in radiation dosimetry. Currently, colorimetric ionizing-radiation-responsive materials remain underexplored, and those with multistimuli response are rare. Herein, the integration of thorium cation and photoresponsive terpyridine carboxylate ligand gives rise ...
... Pathogen infections present a considerable threat to global health owing to the high morbidity and mortality, and usually multiple pathogens coexist in food and the environment. Consequently, it is in urgent need to develop some multiplexed and sensitive approaches for pathogen detection. Here, we presented a novel strategy using mass tag-mediated surface engineering for simultaneous detection of ...
... We demonstrate Markovnikov hydroalkoxylation of unactivated alkenes using alcohols through a triple catalysis consisting of photoredox, cobalt, and Brønsted acid catalysts under visible light irradiation. The triple catalysis realizes three key elementary steps in a single catalytic cycle: (1) Co(III) hydride generation by photochemical reduction of Co(II) followed by protonation, (2) metal hydrid ...
absorption; agrochemicals; aqueous solutions; density functional theory; detection limit; electron transfer; energy; food contamination; green chemistry; human health; irradiation; ligands; luminescence; paraquat; rapid methods; toxicity
Abstract:
... The toxic agrochemical contamination of food and the environment is one of the most pressing concerns for human health and environmental sustainability. In this work, a water-stable 3D lanthanide-based MOF, [Tb₂(H₂btec)(btec)(H₂O)]·4H₂O (Tb-MOF) has been demonstrated as a turn-off luminescent sensor for the detection of poisonous paraquat. The ligand 1,2,4,5-benzenetetracarboxylic acid (H₄btec) wa ...
... Bacterial infection will attack the wound and aggravate inflammation, which is the main reason for the difficulty in wound healing. Here, we reported a dextran-based hydrogel composed of methacrylated gelatin (GelMA) and oxidized dextran (oDex), which loaded with black phosphorus (BP) nanosheets and zinc oxide nanoparticles (ZnO NPs). The hydrogel exhibited synergistic antibacterial activity of ph ...
... The low toxicity and good photo active property endow bismuth based metal–organic frameworks (MOFs) potential candidates for efficient light-sensitive drug carrier. In this work, SU-101, composed of Bi and ellagic acid (EA), is found to display high ciprofloxacin (CIP) loading ratio (85.8%) and controlled CIP release under light illumination (the maximum CIP release ratio is 95.56%). Further inves ...
... Incomplete removal of tumor cells and insufficient osseointegration are the main causes of bone tumor recurrence and implantation failure. In the present study, a multifunctional titanium-based bioactive implant for near-infrared-triggered synergy therapy to overcome these hurdles is engineered, composed of titanium dioxide (TiO₂) nanoparticles doped with fluorine (F)/dopamine (PDA)/collagen. The ...
... In this study, a strategy combining graphitic carbon nitride (g-C₃N₄) and peroxymonosulfate (PMS) under UV-A LED irradiation was proposed to effectively degrade sulfamethoxazole (SMX), which is a frequently detected antibiotic. The presence of PMS doubled the SMX degradation efficiency by the PMS/UV-A LED/g-C₃N₄ system, which exhibited considerable reactivity for SMX removal. SMX degradation was e ...
dyes; irradiation; oils; photocatalysis; solar radiation; surfactants; triazines; wastewater
Abstract:
... Fouling is the pending issue of conspicuous two-dimensional membranes for complex wastewater treantment. Here, we first report a hybrid-dimensional cosubstantial [0D+2D] covalent triazine framework (CTF) membrane to sort out the membrane fouling via solar-cleaning strategy. The intersertal 0D CTF-0 in lamellar membrane as “pillar” offers interspacing pathways for selective separation of sub/microm ...
... Ibuprofen (IBP) is one ubiquitous drug prescribed as anti-inflammatory, analgesic, and antipyretic. It has been detected in effluents of wastewater plant treatments, sewage sludge, hospital wastewaters, surface waters, and drinking water due to its continuous release to the environment, mainly from the excretion in the urine of animals and humans. IBP is a carcinogenic and non-steroidal endocrine ...
... A boosted photocatalytic activity was observed for the CdS-AgBr nanocomposite in the degradation of methylene blue (MB). The experimental design method based on the response surface methodology (RSM) approach used to study the simultaneous interaction effects between the influencing variables. Analysis of variance (ANOVA) of the results confirmed a significant model for processing the data because ...
electric field; irradiation; light; pH; photocatalysis; pyrroles
Abstract:
... Creating specific photoinduced carriers transport pathways is an important means of improving the photocatalytic performance. Here, we report a simple modification strategy: in-situ deposition of polypyrrole (PPy) onto Bi₂WO₆ (BWO) surface. The close contact between the interface of BWO and PPy as well as the appropriate band structure made it form a bult-in electric field, thus driving the direct ...
chlorine; coliform bacteria; disinfection; irradiation; ozonation; ozone; research; system optimization; wastewater treatment; water; water reuse
Abstract:
... The increasing requirement for reclaimed water has made it necessary to utilize multiple disinfection processes for efficient removal of organoleptic indicators, while guaranteeing microbial safety. However, there is not a proper way to appropriately distribute the operation load between different disinfection units. This study provides a new method to optimize doses of sequential ozonation, ultra ...
... Ag₃PO₄/BiPO₄ heterojunction photocatalysts with an intergrowth structure composed of sphere-shaped Ag₃PO₄ and nanorod BiPO₄ were synthesized via a facile combination of solvothermal method and in-situ deposition process. They exhibit enhanced photocatalytic activities under sunlight irradiation, and the heterojunction composite with the 10 wt% loading amounts of Ag₃PO₄ presented the highest photoc ...
biocompatibility; biocompatible materials; fibroblasts; fibrosis; filtration; glaucoma; irradiation; surgery
Abstract:
... Excessive fibrosis is the major factor in the failure of glaucoma filtration surgery. So far, the dominant approach for inhibiting fibrosis is the use of an antimetabolite drug, but the complications it causes, such as filtering bleb leakage, bacterial endophthalmitis and ocular hypotony, are also inevitable. Herein, a multifunctional anti-scarring platform (PVA@rGO-Ag/5-Fu) integrated with outsta ...
... Based on the strategy that electrocatalysts can be used as additives to improve the performance of photocatalysts, and the unique metalloid properties of tungsten nitride (WN), it can form a Schottky junction with the semiconductor at the heterogeneous interface to improve the photocatalytic performance of semiconductor catalysts. In this paper, WN with excellent electrical conductivity was select ...
... A Z-scheme Bi₂WO₆/CNT/TiO₂ photocatalyst was synthesized hydrothermally and loaded on chitosan nanofibers with different mass percentages using the electrospinning process. The batch adsorption experiments for chitosan nanofibrous samples containing Bi₂WO₆/CNT/TiO₂ revealed that the adsorption process and its kinetic followed the Langmuir isotherm and pseudo-second-order model, respectively. A pla ...
... Conventional luminescent materials generally exhibit uni-color and transient emission under UV excitation, which makes them mediocre in the field of anti-counterfeiting. The high-level anti-counterfeiting techniques are always becoming more complicated and in need of multi-color and persistent luminescent materials. Herein, we report a series of β-NaYF₄:RE³⁺ (RE = Sm, Tb, Dy, Pr) persistent lumine ...
... The emergence of drug resistance and superbugs poses a devastating threat to public health and can even lead to death. Thus, it is significant to develop a novel antibacterial agent to combat bacterial infections. Herein, we developed quaternary ammonium salt (QAS) modified near-infrared carbon dots (RCDs-C₃₅), which possesses synergistic antibacterial performance under 808 nm irradiation. This na ...
cancer therapy; carbon; drugs; heat; immunotherapy; interleukin-12; irradiation; macrophages; nanomedicine; neoplasms; photochemotherapy; photothermotherapy; porous media; singlet oxygen; temperature
Abstract:
... The accumulation of nanomedicines in tumor tissues determines their therapeutic efficacy. We herein exploit the tropism of macrophages to improve the accumulation and retention time of nanomedicine at tumors. Interestingly, macrophages are not merely as transporters, but killers activated by nanomedicine. The system(M@C-HA/ICG) was established by decorating macrophages with hyaluronic acid-modifie ...
absorbance; carbon nitride; electron transfer; energy transfer; graphene; irradiation; nanohybrids; neoplasms; photochemotherapy; sialic acid
Abstract:
... Theranostic nanoplatforms with accurate diagnosis and effective therapy show a bright prospect for tumor treatments. Herein, a novel boracic acid-modified graphite carbon nitride and Prussian blue nanohybrid (PB@B-g-C₃N₄) was developed, which provides sialic acid-targeted Raman recognition and synergistic photothermal/photodynamic therapy in the near-infrared region. Owing to the specific interact ...
aptasensors; blood serum; detection limit; electric current; electrodes; electron transfer; humans; irradiation; nanorods; oligonucleotides; photostability
Abstract:
... Due to its capability of low spectral interference, high light stability, and minimal photodamage to biological species, near-infrared (NIR) light is advantageous in biosensing and biochemical analysis. This work developed a photoelectrochemical (PEC) aptasensor for adenosine triphosphate (ATP) detection using NIR light as the irradiation source. In order to utilize NIR light, we prepared Yb-doped ...
absorbance; dissociation; durability; electron paramagnetic resonance spectroscopy; hot water treatment; irradiation; light; mineralization; nanocomposites; pH; photocatalysis; photocatalysts; reaction mechanisms; sonocatalysis; synergism; ultrasonic treatment
Abstract:
... Novel Sm doped Cr₂O₃ decorated MWCNTs nanocomposite photocatalyst was successfully prepared by a facile hydrothermal method for metoprolol (MET) degradation. A heterogeneous photo -Fenton like system was formed with the addition of H₂O₂ for ultrasonic irradiation (US), visible light irradiation (Vis) and dual irradiation (US/Vis) systems. The intrinsic characteristics of Sm doped Cr₂O₃ decorated M ...
... The simultaneous introduction of two new functionalities into the same polymeric substrate under mild reaction conditions is an interesting and important topic. Herein, dual-functional polydimethylsiloxane (PDMS) surfaces with antibacterial and antifouling properties were conveniently developed via a novel Y-shaped asymmetric dual-functional photoiniferter (Y-iniferter). The Y-iniferter was initia ...
... Clenbuterol is a β-adrenergic receptor agonist that can be used as a bronchodilator for the treatment of respiratory diseases or as an additive feed in livestock to improve conversion rate of lean meat. However, the residue of clenbuterol in food can be a threat to human health. Therefore, it is important to monitor clenbuterol in foods. In this paper, a fluorescence inner filtration immunoassay ( ...
... The carbon/boron co-doped TiO₂ (CBCT) photocatalyst was produced through the gel-hydrothermal process in this study. Its properties were then analyzed by using XRD, FE-SEM, EDX, FTIR, BET and Raman techniques, according to which the CBCT had the dominant anatase phase, whereas its specific surface area (46.1 m²/g) and porosity (0.101) made it a suitable photocatalyst. The response surface methodol ...
... Intraocular lens (IOL) is the indispensable implant for cataract surgery. However, posterior capsular opacification (PCO) happens in high incidence after IOL implantation. PCO is caused by adhesion, proliferation, and trans-differentiation of the residual human lens epithelial cells (HLECs). Despite the great achievements in surface coating and antiproliferative drug loading on the intraocular len ...
V. Subhiksha; Mohammad K. Okla; Ibrahim A. Alaraidh; Asmaa Mohebaldin; Walid Soufan; Mostafa A. Abdel-Maksoud; Ramadan F. Abdelaziz; Ajith M. Thomas; Lija L. Raju; S. Sudheer Khan
... In account of environmental remediation, an ideal photocatalyst was fabricated for the effective treatment of water systems. Herein, dual heterojunctions framed CuWO₄/Bi₂WO₆/MnS nanocomposite (NCs) was synthesised via simple co-precipitation method followed by ultra-sonicated-assisted route. The prepared NCs were investigated its photocatalytic degradation performance using para-chlorophenol (4-CP ...
... The visible active N-doped TiO₂/ZnFe₂O₄ (urea–TiO₂/ZnFe₂O₄) and CN-codoped TiO₂/ZnFe₂O₄ (L-asparagine–TiO₂/ZnFe₂O₄) nanocomposites were successfully synthesized by the sol–gel–hydrothermal method for direct red 16 (DR16) photodegradation. Their properties of the prepared nanocomposites were analysed using XRD, FT-IR, FE-SEM, EDX, DRS and PL tests. The DRS and PL results confirmed a narrow band-gap ...
... Over more than three decades, the field of engineering of photocatalytic materials with unique properties and enhanced performance has received a huge attention. In this regard, different classes of materials were fabricated and used for different photocatalytic applications. Among these materials, recently multifunctional XTiO₃ perovskites have drawn outstanding interest towards environmental rem ...
... Biofilms are multicellular communities of microorganisms held together by a self-produced extracellular matrix, which contribute to hygiene problems in the food and medical fields. Both spoilage and pathogenic bacteria that grow in the complex structure of biofilm are more resistant to harsh environmental conditions and conventional antimicrobial agents. Therefore, it is important to develop eco-f ...
COVID-19 infection; air; airborne transmission; environmental factors; filtration; heat inactivation; human population; ionization; irradiation; markets; probability; reactive oxygen species; research and development; viruses
Abstract:
... COVID-19 forced the human population to rethink its way of living. The threat posed by the potential spread of the virus via an airborne transmission mode through ventilation systems in buildings and enclosed spaces has been recognized as a major concern. To mitigate this threat, researchers have explored different technologies and methods that can remove or decrease the concentration of the virus ...
cancer therapy; carcinoma; doxorubicin; drug delivery systems; humans; hyaluronic acid; irradiation; liver; pH; photochemotherapy; photothermotherapy; porous media; silica
Abstract:
... Chemotherapy combined with photothermal therapy, a promising strategy for cancer treatment, has a high potential to control drug release and improve therapeutic efficacy. Inspired by this, a pH/NIR dual-responsive drug delivery system (DOX/HMSN@PDA-HA nanoparticles, simplified as DHPH NPs) based on hollow mesoporous silica nanoparticles (HMSNs) was designed for targeted therapy of tumor, by self-c ...
Cyprus; Mediterranean climate; capital; energy; energy use and consumption; heat; heat exchangers; irradiation; mass flow; power generation; temperature
Abstract:
... This paper investigates the configuration of solar thermal collector driven organic Rankine cycle (ORC) utilized to power air-conditioning system of the two-story office building in Paralimni, Cyprus, through a Variable-Refrigerant-Flow (VRF) system. The reason to choose this Mediterranean climate of Paralimni, Cyprus, is due to its higher dependency on fossil fuels compared to many other countrie ...
adsorbents; benzene; carbon dioxide; cis-trans isomers; density functional theory; energy; energy costs; irradiation; isomerization; ultraviolet radiation
Abstract:
... Photo-switching metal–organic frameworks are widely reported for low energy CO₂ capture and release. However, owing to the steric hindrance caused by dense packing of MOF solids, the photo-switching efficiency was still severely restricted. Such an issue then further causes low CO₂ switching capacity and poor regeneration of MOF adsorbents. Herein, we present a strategy to tailor the photo-switchi ...
... Tomato seeds are a major waste of tomato paste manufacturing. In this study, an interesting yield of oil was obtained (21.69%) from the seeds of an industrial tomato byproduct (Rio Grande variety), after a Soxhlet extraction. The fatty acid profile of the extracted oil was established by gas chromatography and the tomato seed oil (TSO) was rich in unsaturated fatty acids (79.83%). After that, micr ...
... An unprecedented synthetic strategy is devised to generate β-aminoboronic acids from aziridines via a sequential process involving 1,2-iodoamine formation and radical borylation under light irradiation. A variety of aziridines including multiply substituted aziridines have been successfully employed as synthetic precursors, expanding their synthetic utility compared to previous methods. Mechanisti ...