Anti-ablation properties of ZrB2 modified carbon/phenolic composites in plasma wind tunnel DOI Open Access
Andi Lin, Haiming Huang, Shuang Wang

и другие.

Journal of Composite Materials, Год журнала: 2023, Номер 58(1), С. 3 - 12

Опубликована: Ноя. 15, 2023

Improving the ablative resistance of carbon/phenolic (C/Ph) composites is an urgent need in field thermal protection hypersonic vehicles. In this paper, novel C/Ph are fabricated by introducing different contents ZrB 2 ceramic particles, and anti-ablation properties tested plasma wind tunnel. Under mainstream conditions with enthalpy 21.84 MJ/kg, heat flux 1.6 MW/m , pressure kPa, effects content on stability, linear ablation rate surface temperature further analyzed. The maximum positively correlated . As increases, back face materials decreases gradually, while increases slightly after a significant decrease. When time 50 s, sample 7% lowest (0.0184 mm/s). These dates tunnel test could provide reference for applications composites. oxidation contributes significantly to improving its severe environments. Accordingly, optimizing enables development high-performance enhanced properties, reduced rates, making them well-suited applications.

Язык: Английский

Photophysical effects of TiO2 quantum dots on phytotoxicity, recycling for solar and photocatalytic processes of industrial effluent DOI Creative Commons
Walied A.A. Mohamed, Hanan A. Mousa,

Hala H. Abd El‐Gawad

и другие.

Results in Physics, Год журнала: 2023, Номер 46, С. 106316 - 106316

Опубликована: Март 1, 2023

Titanium dioxide quantum dots were prepared and studied as a catalyst for studying the photodegradation of indigo carmine dye in aqueous solution phytotoxicity selected seeds. Tomato seeds (Lycopersicon esculentum) germinated water with different titanium (IV) (TQs) samples (TQ1 TQ2) TiO2 P25 did not observe any influence on germination process. HRTEM, FE-SEM, EDX, XRD used to investigate size, shape, structure created TQs samples. TQ1 TQ2 measured be exactly 2.6 3.4 nm, respectively. The use these methods has demonstrated established that do contain other phases or contaminants. (2.6 nm) (3.4) highly distinguishable BET-specific surface areas 474.0 298.2 m2/g, respectively, effectively at calcination temperatures: 270 320 0C 240 min, by merely employing sol–gel technique. photocatalytic activity was assessed using xenon photoreactor Indigo Carmine commercial model direct sunlight actual industrial wastewater They had distinguishable, strong capabilities, which reached 93 94 %. Also, their rates still discernible until 12 10 repeat times process presence TQ2, an investigation been carried out positive energy consumption ratio (EE/O), done order provide price predictions.

Язык: Английский

Процитировано

13
Alkali-activated slag backfill grout materials optimization: statistical RSM modelling and NSGA-II performance control DOI Creative Commons

Xueda Wei,

Tielin Chen,

Guokui Shen

и другие.

Journal of Materials Research and Technology, Год журнала: 2023, Номер 24, С. 5613 - 5627

Опубликована: Апрель 25, 2023

Optimizing the performance of alkali-activated slag backfill grout (ASBG) is crucial for engineering applications. Fluidity and 28 d unconfined compressive strength (28 UCS) are two most important performances multi-objective optimization existed. In this research, response surface method (RSM) experiment design model regression, non-dominated sorting genetic algorithm II (NSGA-II) optimization, entropy-based Technique Order Preference by Similarity to Ideal Solution (TOPSIS) decision-making were implemented. The formation mechanism optimal ASBG was investigated via microstructure evolution. results show that quadratic RSM models fluidity UCS exhibit excellent predictive fitting capabilities, with determination coefficients 0.9713 0.9588 respectively. NSGA-II coupled TOPSIS determined mix proportion water-binder ratio 0.877, binder-sand 1.000 alkali dosage 4.138%. porosities at 1–28 decrease from 10.06% 2.62%. And mode evolution can be divided into stages according probability distribution index fractal dimension. early stage, dimension decreased 0.9974 0.4833 1.2498 1.2022. This indicated number small pores pore boundary transformed softer one as irregular plate-like GGBS dissolved. later increased 1.4732 1.2022 1.3273, indicating a relatively denser fewer large formed.

Язык: Английский

Процитировано

11
Utilization of stable and efficient perovskite La(Cr0.2Mn0.2Fe0.2Co0.2Ni0.2)O3-δ catalyst with high-entropy to boost peroxymonosulfate activation towards organics degradation DOI
Lihui Yang,

Wenjian Yang,

Wei Sun

и другие.

Journal of the Taiwan Institute of Chemical Engineers, Год журнала: 2023, Номер 143, С. 104696 - 104696

Опубликована: Янв. 21, 2023

Язык: Английский

Процитировано

10
Molecularly imprinted polymer composite membranes: From synthesis to diverse applications DOI Creative Commons
Nasrullah Shah, Muffarih Shah, Touseef Rehan

и другие.

Heliyon, Год журнала: 2024, Номер 10(16), С. e36189 - e36189

Опубликована: Авг. 1, 2024

This review underscores the fundamentals of MIP-CMs and systematically summarizes their synthetic strategies applications, potential developments. are widely acclaimed for versatility, finding applications in separation, filtration, detection, trace analysis, as well serving scaffolds a range analytical, biomedical industrial contexts. Also characterized by extraordinary selectivity, remarkable sensitivity, outstanding capability to bind molecules, those membranes also cost-effective, highly stable, configurable terms recognition and, therefore, inalienable various application fields. Issues relating future paper discussed last section with focus on improvement resource practical across different areas. Hence, this can be seen kind cookbook design fabrication an intention expand scope application.

Язык: Английский

Процитировано

3
Multifunctional applications of novel copper magnesium vanadate nanoparticles: Photocatalytic dye degradation and electrochemical properties DOI

S. Ishwarya,

H.P. Nagaswarupa,

Ramachandra Naik

и другие.

Microchemical Journal, Год журнала: 2024, Номер 206, С. 111489 - 111489

Опубликована: Авг. 24, 2024

Язык: Английский

Процитировано

3
Exploring the diverse applications of sol–gel synthesized CaO:MgAl2O4 nanocomposite: morphological, photocatalytic, and electrochemical perspectives DOI Creative Commons

H.K. Jahnavi,

S. Rajendra Prasad,

H.P. Nagaswarupa

и другие.

Discover Nano, Год журнала: 2024, Номер 19(1)

Опубликована: Сен. 12, 2024

Abstract A nanocomposite of CaO:MgAl 2 O 4 was synthesized through a straightforward and cost-effective sol–gel method. The investigation the novel encompassed an examination its morphological structural alterations, as well exploration photocatalytic activities electrochemical characteristics. XRD analysis revealed size 24.15 nm. band gap, determined UV studies, found to be 3.83 eV, scanning electron microscopy (SEM) illustrated flake-like changes in samples. TEM, HRTEM, SAED studies would reveal important details about morphology, crystallography, nanostructure. Photocatalytic activity quantified by studying degradation Acid Red-88 (AR-88) dye deionized solution, achieving 70% under irradiation 120 min. Plant growth examinations were carried out using degraded water test suitability for agriculture. energy storage sensing applications prepared examined modified carbon paste electrode cyclic voltammetry (CV) impedance spectroscopy (EIS). In conclusion, demonstrated promising characteristics, efficient activity, potential storage, highlighting versatility various technological environmental applications. Graphical abstract

Язык: Английский

Процитировано

3
Photocatalytic Decomposition of Indigo Carmine and Methylene Blue Dyes using Facilely Synthesized Lithium Borate/Copper Oxide Nanocomposite DOI
Nada S. Al‐Kadhi, Fawaz A. Saad, Reem Shah

и другие.

Journal of Inorganic and Organometallic Polymers and Materials, Год журнала: 2023, Номер 33(9), С. 2765 - 2775

Опубликована: Май 26, 2023

Язык: Английский

Процитировано

8
Hydrothermal synthesis and photocatalytic performance of Dy2O3/Mn nanostructures DOI
N. Alonizan, M. Madani, K. Omri

и другие.

The European Physical Journal Plus, Год журнала: 2023, Номер 138(5)

Опубликована: Май 9, 2023

Язык: Английский

Процитировано

7
Investigation of Mg-doping effect on the activity and P tolerance of V2O5-MoO3 /TiO2 catalysts for NH3-SCR DOI
Liqiang Qi, Silan Li, Wen Wang

и другие.

Environmental Science and Pollution Research, Год журнала: 2023, Номер 30(22), С. 62880 - 62891

Опубликована: Март 23, 2023

Язык: Английский

Процитировано

6
Highly Efficient Visible-Light-Driven Mn0.2Cd0.8S/g-C3N4 Heterojunction for the Photodegradation of Highly Toxic Tetracycline Antibiotics DOI
Wenjun Chen, Yuzhen Li, Lizhen Gao

и другие.

Industrial & Engineering Chemistry Research, Год журнала: 2023, Номер 62(29), С. 11606 - 11617

Опубликована: Июнь 26, 2023

With the rapid advancement of modern science and technology, damage antibiotics to human health ecosystem has aroused widespread concern. In this study, a Mn0.2Cd0.8S/g-C3N4 type II heterojunction was prepared. The effects different loading ratios, catalyst dosage, pH on photocatalytic functions composites were investigated. When additive dosage 10% 1.20 g/L, tetracycline (TC) solution 5, photodegradation rate TC (10 mg/L) 98.4% under irradiation visible light for 120 min. After four cycles, reached 96.8%, indicating good stability recoverability. Furthermore, study found that ·O2– dominant active species leading decolorization in process photocatalysis. Based its excellent great cycle utilization rate, composite provided promising suggestion degradation antibiotics.

Язык: Английский

Процитировано

6