Effective aqueous chromate treatment using triethanolamine anacardate coated magnetic nanoparticles.

Low-cost adsorbents derived from agricultural by-products incorporated magnetic nanoparticles (NPs) are promising for wastewater treatment. They are always preferred due to their great performance and easy separation. This study reports cobalt superparamagnetic (CoFeO) nanoparticles (NPs) incorporated with triethanolamine (TEA) based surfactants from cashew nut shell liquid, namely TEA-CoFeO, for the removal of chromium (VI) ions from aqueous solutions.

Improvement of Probiotic Viability by Mixing with Ultrasound-Treated Yeast Cells and Spray Drying.

The objective of the study was to determine the efficacy of ultrasound-treatment Saccharomyces cerevisiae and spray drying in preserving the viability of Lactiplantibacillus plantarum. The combination of ultrasound-treated S. cerevisiae and L.

Predicting the severity of COVID-19 patients using the CD24-CSF1R index in whole blood samples.

Coronavirus disease 2019 (COVID-19), caused by SARS-CoV-2, has become one of the most serious public health crises worldwide. Most infected people are asymptomatic but are still able to spread the virus. People with mild or moderate illnesses are likely to recover without hospitalization, while critically ill patients face a higher risk of organ injury or even death.

Sensor Clustering Using a -Means Algorithm in Combination with Optimized Unmanned Aerial Vehicle Trajectory in Wireless Sensor Networks.

We examine a general wireless sensor network (WSN) model which incorporates a large number of sensors distributed over a large and complex geographical area. The study proposes solutions for a flexible deployment, low cost and high reliability in a wireless sensor network. To achieve these aims, we propose the application of an unmanned aerial vehicle (UAV) as a flying relay to receive and forward signals that employ nonorthogonal multiple access (NOMA) for a high spectral sharing efficiency.

Ultrasonic spray pyrolysis synthesis of TiO/AlO microspheres with enhanced removal efficiency towards toxic industrial dyes.

Developing low-cost and highly effective adsorbent materials to decolorate wastewater is still challenging in the industry. In this study, TiO-modified AlO microspheres with different TiO contents were produced by spray pyrolysis, which is rapid and easy to scale up. Results reveal that the modification of γ-AlO with TiO reduced the crystallite size of AlO and generated more active sites in the composite sample.

Ni-Co bimetallic decorated dodecahedral ZIF as an efficient catalyst for photoelectrochemical degradation of sulfamethoxazole coupled with hydrogen production.

In this work, a NiCo bimetallic ZIF (BMZIF) dodecahedron material has been synthesized by the precipitation approach and then used for simultaneously photoelectrocatalytic degradation of sulfamethoxazole (SMX) and hydrogen production. The combination of Ni/Co loading in ZIF structure increased the specific surface area 1484 (m g) and photocurrent density (0.4 mA cm), which can facilitate the good charge transfer efficiency.

Roles of microalgae-based biofertilizer in sustainability of green agriculture and food-water-energy security nexus.

For years, agrochemical fertilizers have been used in agriculture for crop production. However, intensive utilization of chemical fertilizers is not an ecological and environmental choice since they are destroying soil health and causing an emerging threat to agricultural production on a global scale. Under the circumstances of the increasing utilization of chemical fertilizers, cultivating microalgae to produce biofertilizers would be a wise solution since desired environmental targets will be obtained including (1) replacing chemical fertilizer while improving crop yields and soil health; (2) reducing the harvest of non-renewable elements from limited natural resources for chemical fertilizers production, and (3) mitigating negative influences of climate change through CO capture through microalgae cultivation.

Agricultural waste to real worth biochar as a sustainable material for supercapacitor.

Biochar made from agricultural waste is gaining more attention in energy field due to its sustainability, low cost, apart from having high supercapacitance performance. Also, it has a wide range of environmental applications, including wastewater treatment, upgrading soil fertility, contaminant immobilization, and in situ carbon sequestration. The existing thermo-chemical methodologies for converting agricultural waste into a sustainable material i.

Atomically dispersed Ti-O clusters anchored on NH-UiO-66(Zr) as efficient and deactivation-resistant photocatalyst for abatement of gaseous toluene under visible light.

Photocatalytic oxidation (PCO) of volatile organic compounds (VOCs) over MOF-based photocatalysts is considerably impeded by the weak activation of reactant molecules on the catalyst surface and low charge carrier mobility. In this study, we demonstrate that atomically dispersed Ti species anchored on NH-UiO-66(Zr) (AUiO-66(Zr/Ti)) exhibit high visible-light-responsive photocatalytic activity toward toluene vapor with an 83 % removal efficiency and 89 % CO selectivity. These results are markedly superior to those reported in the literature.

Evaluating major anthropogenic VOC emission sources in densely populated Vietnamese cities.

Volatile organic compounds (VOCs) play an important role in urban air pollution, both as primary pollutants and through their contribution to the formation of secondary pollutants, such as tropospheric ozone and secondary organic aerosols. In this study, more than 30 VOC species were continuously monitored in the two most populous cities in Vietnam, namely Ho Chi Minh City (HCMC, September-October 2018 and March 2019) and Hanoi (March 2019). In parallel with ambient VOC sampling, grab sampling was used to target the most prevalent regional-specific emission sources and estimate their emission factors (EFs).

Effect of biomass retention time on performance and fouling of a stirred membrane photobioreactor.

Co-culture of microalgae-activated sludge has the potential to purify wastewater while reduce energy demand from aeration. In this work, a mechanically stirred membrane photobioreactor (stirred-MPBR) was used to evaluate the impact of the biomass retention time (BRT) on the treatment performance and membrane fouling. Results showed that stirred-MPBR was affected by BRT during treating domestic wastewater at a flux of 16.

Characteristics of Mechanical Properties and Thermal Behavior of Epoxy Nanocomposites and Coatings by Zinc Borate, Nano Silica, and Hardener.

This study reports the ability of zinc borate (ZB) and nano silica (NS) in improving mechanical properties and thermal behavior of nanocomposites and coatings composed of epoxy resin EPIKOTE 1001 × 75 cured with hardener T31. The properties of the fabricated nanocomposites were characterized using scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis, derivative thermogravimetry, differential scanning calorimetry, and dynamic mechanical analysis. With the addition content of 5 wt % ZB into epoxy resin (EPIKOTE 1001 × 75/T31/ZB-5), the impact strength of the fabricated epoxy polymer film increased by 50%, and the glass transition temperature ( ) increased from 52 to 71 °C.

Characteristics of Ag-incorporated bioactive glasses prepared by a modified sol-gel method with a shortened synthesis time and without the use of catalysts.

This work presents the preparation of bioactive glasses 70SiO-(26 - )CaO-4PO-AgO (with = 0, 1, 3, 10 mol%) by a modified sol-gel method with reduced synthesis time based on hydrothermal reaction in a medium without acid or base catalysts. The synthetic materials were characterized by several physical-chemical techniques such as TG-DSC, XRD, SEM, TEM, and N adsorption/desorption measurement. The analysis data confirmed that the glass sample not containing Ag has a completely amorphous structure, while glass samples containing Ag exhibited a pure phase of metallic nano-silver in the glass amorphous phase.

New Angled Twin-layer Porous Substrate Photobioreactors for Cultivation of Nannochloropsis oculata.

An angled twin-layer porous substrate photobioreactor (TL-PSBR) using LED light was designed to cultivate Nannochloropsis oculata. Flocculation and sedimentation by modification of pH to 11 were determined as the optimal method for harvesting the N. oculata inoculum.

Beta-naphthoflavone and doxorubicin synergistically enhance apoptosis in human lung cancer cells by inducing doxorubicin accumulation, mitochondrial ROS generation, and JNK pathway signaling.

Doxorubicin is one of the most effective chemotherapeutic agents available for treating various cancers, including lung cancer-the leading cause of cancer death in both men and women. However, its clinical application has been impeded by severe adverse effects, notably cardiotoxicity. Development of cellular resistance to doxorubicin is another major obstacle that must be overcome for broader application of the drug.

High-efficiency reduction of -nitrophenol on green-synthesized gold nanoparticles decorated on ceria nanorods.

A green synthesis using extract from peel was developed to fabricate Au-Ce catalysts for the reduction of -nitrophenol (PNP). Au nanoparticles with a diameter of 6.6 ± 2.

Adsorptive removal of phosphate from aqueous solutions using low-cost modified biochar-packed column: Effect of operational parameters and kinetic study.

Adsorption in the continuous mode plays a significant role in wastewater treatment. In this study, Mimosa pigra-derived biochar modified with 2 M AlCl salt was used to pack a lab-scale column to eliminate PO from aqueous solutions. The influence of the operational factors, such as inlet PO concentration (25-100 mg/L), flow rate (6-18 mL/min), and biochar bed height (1.

Chemical and volatile composition of Pálinka produced using different commercial yeast strains of Saccharomyces cerevisiae.

Pálinka is Hungarian traditional alcoholic drink, and its quality is strongly depending on applied yeast strain. Unfortunately, all commercial yeast strains used the production of pálinka are selected for oenological purpose, and thus the efficacy and aroma releasing capacity are vary depending on the type and quality of fruit used. In this study, the fermentation efficacy of nine commercial yeast strains of Saccharomyces cerevisiae was focused.

QTL mapping under salt stress in rice using a Kalarata-Azucena population.

Unlabelled: Salt stress is a major constraint across large rice production areas in Asia, because of the high sensitivity of modern rice varieties. To identify quantitative trait loci (QTL) associated with salt tolerance in rice, we developed an F population from a cross between the salt-tolerant landrace, Kalarata, and the salt-sensitive parent, Azucena. F3 families from this population were screened and scored for salt tolerance using IRRI's (SES).

Determination of triacylglycerol and fatty acid compositions of seed oils using reverse phase high performance liquid chromatography.

In the present work, triacylglycerol and fatty acid compositions of . and . seed oils were determined using reverse phase high performance liquid chromatography with both refractive index and spectrophotometric detections.

Flower-like nickel hydroxide@tea leaf-derived biochar composite for high-performance supercapacitor application.

Renewable and sustainable high-performance energy storage devices are desirable to fulfill the demands of next-generation power sources. In this study, we report a flower-like nickel hydroxide/spent tea leaf-derived biochar (NiNF@TBC) composite for high-performance supercapacitor application. The tea leaf-derived biochar (TBC) with a specific surface area of 1340 m g is used as the Ni(OH) support to fabricate NiNF@TBC composites.

Using ZrO coated sludge from drinking water treatment plant as a novel adsorbent for nitrate removal from contaminated water.

This study aimed to produce a novel efficient absorbent using sludge generated from drinking water treatment plants (DWTPs) as a low-cost absorbent and applied to treat nitrate (NO) from contaminated water. Before the ZrO coating experiment, the drinking water sludge (DWS) from DWTPs was pretreated by thermal treatment (80 °C, 200 °C, and 500 °C). After that, ZrO coated drinking water sludge (DWS@ZrO) was produced by a simple precipitated reaction.