Results in Materials, Год журнала: 2025, Номер unknown, С. 100711 - 100711
Опубликована: Апрель 1, 2025
Язык: Английский
Case Studies in Chemical and Environmental Engineering, Год журнала: 2024, Номер 9, С. 100673 - 100673
Опубликована: Фев. 23, 2024
It is difficult to reuse wastes from polymers due the mismatch between amount of contaminants and secondary quality feed. This type operation much more expensive cost-effective than production polymer raw materials latest materials. However, recyclable beneficial if used extensively in various concrete products wood-polymer boards. done only cleaning sorting are not particularly important for products. Polyethylene terephthalate (PET) a widely industries its excellent physical chemical properties. Besides, increasing use PET has led global crisis waste management, as improper disposal caused significant environmental damage. major source accumulated landfills, address this issue, recycling methods have evolved. In regard, present review examines techniques involved PET. Conventional influence diverse depolymerization reaction variables were discussed, upsides downsides each technique considered. The summarizes advances technologies plastic waste, focusing on bio-recycling PET, aiming sustainable, economical solutions circular economy.
Язык: Английский
Процитировано
109
Case Studies in Chemical and Environmental Engineering, Год журнала: 2024, Номер 9, С. 100626 - 100626
Опубликована: Янв. 24, 2024
Nanoparticles have revolutioned materials secience and manufacturing industry thanks to their ultrafine scale. Nano-scale titanium oxide (nano-TiO2) are key elements of a wide variety sectors advanced materials, devices, systems in view versatility extraordinary characetristics, mainly optical, electrical catalytic properties. Thnaks aforementioned features, they found position different industries such as colors pigments, photocatalysts, photovoltaic solar cells, adsorbents, cosmetics, electric electronic devices. Nano-SiO2 application gives rise range properties performance, which severely depends on particle size, size distribution, agglomeration the bulk host or systems. When used surface coating additive even functionalized, nano- TiO2 takes more roles, state-of-the-art depending synthesis method. Therefore, review synthesis, properties, surface- bulk-functionalization/modification (respectively with function groups doping) methods achieving high-performance seems essential. In this review, background information developments from pure Titanium Oxide chemically modified -based photocatalysts were discussed detail, Photocatalytic activity oxide-based nitrogen group pollutant decomposition. It also Vehicle for Chemotherapeutics Other Applications Medicine an overview factors affecting been reviewed.
Язык: Английский
Процитировано
81
Results in Chemistry, Год журнала: 2024, Номер 7, С. 101332 - 101332
Опубликована: Янв. 1, 2024
The emission of heavy metals in the environment has caused many problems world due to industrialization society and expansion urbanization. Environmental pollution, including greenhouse gases water-soluble toxic pollutants, is a major concern around world. One most important issues protecting health humans, animals plants cleanliness water. Water substance vital for all living things on planet. can be treated several ways, such as desalination, purification, osmosis, disinfection, deposition contaminants. Among these methods, adsorption method advantages over other methods. surface phenomenon during which contaminants are adsorbed adsorbent with physical forces depends factors temperature, pH, concentration contaminants, time phase contact particle size temperature nature pollutants adsorption. Chitosan received widespread attention an because its low cost great potentials. abundant hydroxyl amino groups that bind metal ions. However, it defects sensitivity thermal stability, mechanical strength, limit application chitosan wastewater treatment. functional modified improve performance via crosslinking graft modification. porosity specific area powder form not ideal, therefore, modification been attempted generate nanoparticles hydrogel. also integrated materials (e.g. graphene, zeolite) resulting composite improved performance. This review mainly focuses reports about derivatives remove different metals. preparation strategy, mechanism, affecting adsorbents each type discussed detail. Recent organic (dyes phenol) removal by briefly discussed.
Язык: Английский
Процитировано
46
Results in Engineering, Год журнала: 2024, Номер 23, С. 102404 - 102404
Опубликована: Июнь 14, 2024
With the progress of human civilization, development technology and increasing population, world is currently facing an important problem called pollution, which threatens lives inhabitants planet, so that in every country, environmental protection a serious concern statesmen. Pollution caused by accumulation soil water from persistent toxic compounds such as chemicals, salts, heavy metals radioactive substances are causes diseases have inconsistent effects on growth health animals humans. The release environment due to industrialization expansion urbanization has brought great problems all over world, increase pollution concerns their carcinogenic properties, indestructibility biological accumulation. Adsorption industrial effluents one issues. So far, various methods been considered for adsorption these metals, use methods. There natural synthetic adsorption, each specific advantages, recently chitosan also composites used. Being economical terms economy, easy access compliance with standards among advantages method. In this study, basis performance, disadvantages different finally adsorbent nanofibers discussed.
Язык: Английский
Процитировано
39
Case Studies in Chemical and Environmental Engineering, Год журнала: 2024, Номер 9, С. 100612 - 100612
Опубликована: Янв. 11, 2024
Polylactic acid (PLA) is a linear aliphatic polyester thermoplastic made from renewable sources such as sugar beet and cornstarch. Methods of preparation polylactic are biological chemical. The advantages biocompatibility, easily processing, low energy loss, transparency, high strength, resistance to water fat penetration consumption carbon dioxide during production. However, has disadvantages hydrophobicity, fragility at room temperature, thermal resistance, slow degradation rate, permeability gases, lack active groups chemical neutrality. To overcome the limitations acid, stability inability absorb nanoparticles graphene added improve its properties. Samples were prepared by solution casting method using chloroform solvent in thin films. mechanical, thermal, structural properties pure acid/graphene nanocomposites studied tensile Test X-ray diffraction (XRD), Root mean square (RMS) Differential Scanning Calorimetry (DSC). Also, exposing samples Ultraviolet (UV) rays then performing test, produced against was investigated. With above tests, it found that adding crystallinity decreases strength elongation particles (0.4% graphene) increase certain extent decrease. loss modulus storage also increased addition nanoparticles. By comparing exposed with other samples, significant decrease elasticity observed. In words, make brittle.
Язык: Английский
Процитировано
31
Results in Chemistry, Год журнала: 2024, Номер 7, С. 101422 - 101422
Опубликована: Янв. 1, 2024
Development of lithium-ion batteries (Li-ion batteries) with high safety and solidity features has become a main challenge researchers when practical implementations for large-scale energy storage systems are prioritized. In this work, we introduce useful efficient strategy to manufacture long-standing high-rate carbon-doped TiO2 (C-TiO2) as an anode material. Titanium (TiO2) C-TiO2 were successfully prepared through hydrothermal method in order improve the electrical performance Li-battery. The structure thermal properties investigated by XRD, Raman TGA; whereas evaluated Glvanostatic discharge–charge measurements. density function theory (DFT) results revealed that doped carbon atoms causes considerable stress inside crystal lattice TiO2, avoid or minimize underwent relaxation then optimized. electrodes Li-battery was analyzed 100 cycles at different calcination temperatures 400 450 °C. also showed charge capacities 500 mAhg−1 mAg−1.
Язык: Английский
Процитировано
19
International Journal of Biological Macromolecules, Год журнала: 2024, Номер 267, С. 131465 - 131465
Опубликована: Апрель 9, 2024
Язык: Английский
Процитировано
19
Processes, Год журнала: 2025, Номер 13(1), С. 283 - 283
Опубликована: Янв. 20, 2025
With the consequences of climate change becoming more urgent, there has never been a pressing need for technologies that can help to reduce carbon dioxide (CO2) emissions most polluting sectors, such as power generation, steel, cement, and chemical industry. This review summarizes state-of-the-art capture, instance, post-combustion, pre-combustion, oxy-fuel combustion, looping, direct air capture. Moreover, already established capture technologies, absorption, adsorption, membrane-based separation, emerging like calcium looping or cryogenic separation are presented. Beyond this also discusses how captured CO2 be securely stored (CCS) physically in deep saline aquifers depleted gas oil reservoirs, chemically via mineralization, used enhanced recovery. The concept utilizing (CCU) producing value-added products, including formic acid, methanol, urea, methane, towards circular economy will shortly discussed. Real-life applications, e.g., pilot-scale continuous methane (CH4) production from flue CO2, shown. Actual deployment crucial future explored real-life applications. aims provide compact view should considered when choosing store, convert informing researchers with efforts aimed at mitigating tackling crisis.
Язык: Английский
Процитировано
6
Materials Today Communications, Год журнала: 2025, Номер 43, С. 111744 - 111744
Опубликована: Янв. 28, 2025
Язык: Английский
Процитировано
3
RSC Advances, Год журнала: 2023, Номер 13(51), С. 36280 - 36292
Опубликована: Янв. 1, 2023
The level of free bilirubin is a considerable index for the characterization jaundice-related diseases. Herein, biosensor was fabricated via immobilization oxidase (BOx) on graphene oxide (GO) and polyaniline (PANI) that were electrochemically co-precipitated indium tin (ITO) conductive glass. structural enzyme electrode characterized by FTIR, XRD, Raman spectroscopy, while spectral thermal properties investigated UV-vis thermogravimetric analysis (TGA). Owing to activity BOx/GO@PANI/ITO biosensor, it could detect with good selectivity sensitivity in low response time. electrochemical studied using impedance spectroscopy (EIS) cyclic voltammetry (CV). At polarization potential 0.2 V vs. Ag/AgCl, sensor illustrated only 2 s at 30 °C pH 7.5. LOD LOQ calculated found be 0.15 nM 2.8 nM, respectively. signal showed linear concentration range 0.01-250 μM. 5 °C, demonstrated half-time 120 days, through which utilized 100 times this temperature conditions. By common colorimetric method, data levels serum determination coefficient (R2) 0.97.
Язык: Английский
Процитировано
36