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1. Degradation of carbendazim in aqueous solution by dielectric barrier discharge cold plasma: Identification and toxicity of degradation products

Author:
Jie Wang; Changrui Xing; Ji Xia; Hongjuan Chen; Jianhao Zhang; Wenjing Yan
Source:
Food chemistry 2023 v.403 pp. 134329
ISSN:
0308-8146
Subject:
aqueous solutions,   etc   ; benzimidazole; carbendazim; cold; food chemistry; pesticide degradation; survival rate; toxicity; yeasts;     Show all 9 Subjects
Abstract:
... Dielectric barrier discharge (DBD) cold plasma, as a new nonthermal technology, has attracted increasing attention in pesticide degradation. In this study, DBD plasma was used to degrade carbendazim (MBC) in aqueous solution. Under the optimal conditions (160 kv, 50 Hz), MBC solution (0.5 μg/mL) was degraded by 89.04% after plasma treatment for 10 min. Four MBC degradation products were identified ...
DOI:
10.1016/j.foodchem.2022.134329

2. Photodegradation of hydroxyfluorenes in ice and water: A comparison of kinetics, effects of water constituents, and phototransformation by-products

Author:
Linke Ge; Shengkai Cao; Crispin Halsall; Junfeng Niu; Dongxiao Bai; Guangkai He; Peng Zhang; Hongrui Ma
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 139-145
ISSN:
1001-0742
Subject:
aqueous solutions,   etc   ; cold; fluorenes; humic acids; hydroxylation; ice; isomers; photolysis; tandem mass spectrometry; China;     Show all 10 Subjects
Abstract:
... The photochemical behavior of organic pollutants in ice is poorly studied in comparison to aqueous photochemistry. Here we report a detailed comparison of ice and aqueous photodegradation of two representative OH-PAHs, 2-hydroxyfluorene (2-OHFL) and 9-hydroxyfluorene (9-OHFL), which are newly recognized contaminants in the wider environment including colder regions. Interestingly, their photodegra ...
DOI:
10.1016/j.jes.2021.11.002

3. Structural elucidation of a novel polysaccharide from Ophiopogonis Radix and its self-assembly mechanism in aqueous solution

Author:
Bei Wang; Bin Huang; Bing Yang; Liang Ye; Jingqi Zeng; Zhiwei Xiong; Yaping Chen; Shuchen Guo; Yanjun Yang; Weikun Ma; Maomao Zhu; Xiaobin Jia; Liang Feng
Source:
Food chemistry 2023 v.402 pp. 134165
ISSN:
0308-8146
Subject:
aqueous solutions,   etc   ; food chemistry; fructose; functional foods; hydrogen; hydrophobicity; methylation; molecular weight; polysaccharides; solvents;     Show all 10 Subjects
Abstract:
... Ophiopogonis Radix polysaccharides with various bioactivities have caught people's attention in the pharmaceutical and functional food industries. It is necessary to reveal their structures, chain conformations, and solvent behaviors. A neutral polysaccharide named ORP-1 with molecular weight of 3667 Da was obtained from Ophiopogonis Radix. It was composed of d-fructofuranose and d-glucopyranose i ...
DOI:
10.1016/j.foodchem.2022.134165

4. Bimetallic CuPd alloy nanoparticles decorated ZnO nanosheets with enhanced photocatalytic degradation of methyl orange dye

Author:
Hao Sun; Seul-Yi Lee; Soo-Jin Park
Source:
Journal of colloid and interface science 2023 v.629 pp. 87-96
ISSN:
0021-9797
Subject:
aqueous solutions,   etc   ; alloy nanoparticles; copper; dyes; irradiation; light; methyl orange; nanocomposites; nanosheets; photocatalysis; photocatalysts; zinc oxide;     Show all 12 Subjects
Abstract:
... Photocatalytic technology is widely explored as a promising alternative for water treatments. However, low photocatalytic efficiency and selectivity usually limit its practical application. Herein, we develop the synthesis of two-dimensional zinc oxide (ZnO) nanosheets decorated with copper (Cu)-palladium (Pd) bimetallic nanoparticles (NPs) for the degradation of organic dyes in an aqueous solutio ...
DOI:
10.1016/j.jcis.2022.09.054

5. Uranium capture by a layered 2D/2D niobium phosphate/holey graphene architecture via an electro-adsorption and electrocatalytic reduction coupling process

Author:
Yun Liao; Ruilin Lei; Xiaofang Weng; Chuan Yan; Jiaxi Fu; Guoxing Wei; Chen Zhang; Meng Wang; Hongqing Wang
Source:
Journal of hazardous materials 2023 v.442 pp. 130054
ISSN:
0304-3894
Subject:
aqueous solutions,   etc   ; adsorption; deionization; electrical conductivity; electrodes; energy efficiency; graphene; nanosheets; niobium; phosphates; sustainable technology; uranium;     Show all 12 Subjects
Abstract:
... As an energy-efficient and eco-friendly technique, capacitive deionization (CDI) has shown great potential for uranium (U(VI)) capture recently. However, extracting U(VI) with high kinetics, capacity and selectivity remains a major challenge due to the current surface active sites-based material and co-existing ions in aqueous solution. Here we rationally designed a layered 2D/2D niobium phosphate ...
DOI:
10.1016/j.jhazmat.2022.130054

6. Capturing effects of filamentous fungi Aspergillus flavus ZJ-1 on microalgae Chlorella vulgaris WZ-1 and the application of their co-integrated fungi-algae pellets for Cu(II) adsorption

Author:
Chao Zhang; Minwang Laipan; Lei Zhang; Shenghui Yu; Yongtao Li; Junkang Guo
Source:
Journal of hazardous materials 2023 v.442 pp. 130105
ISSN:
0304-3894
Subject:
aqueous solutions,   etc   ; Aspergillus flavus; Chlorella vulgaris; adsorption; biomass; microalgae; mycelium; pH; remediation; sorption isotherms; wastewater; water treatment;     Show all 12 Subjects
Abstract:
... Using filamentous fungi to capture unicellular microalgae is an effective way for microalgae recovery in water treatment. Here, fungi Aspergillus flavus ZJ-1 and microalgae Chlorella vulgaris WZ-1 isolated from a copper tailings pond were used to study the capture effect of ZJ-1 on WZ-1. The highest capture efficiency (97.85%) was obtained within 6 h under the optimized conditions of 30 °C, 150 rp ...
DOI:
10.1016/j.jhazmat.2022.130105

7. Hierarchical CoCoPBA@PCN-221 nanostructure for the highly sensitive detection of deoxynivalenol in foodstuffs

Author:
Jing Cui; Baiwei Wu; Zhenzhen Li; Yanhong Bai; Lun Kan; Minghua Wang; Linghao He; Miao Du
Source:
Food chemistry 2023 v.403 pp. 134370
ISSN:
0308-8146
Subject:
aqueous solutions,   etc   ; antibodies; deoxynivalenol; detection limit; electrochemistry; food chemistry; food safety; immunosensors; nanomaterials; porphyrins; surface area; synergism;     Show all 12 Subjects
Abstract:
... An electrochemical impedimetric immunosensor was constructed based on a hierarchical nanostructured CoCo Prussian blue analogue entrapped by a Zr-based porphyrin MOF (denoted by CoCoPBA@PCN-221) for the sensitive detection of deoxynivalenol (DON). Given that CoCoPBA@PCN-221 demonstrated a hierarchical nanostructure, large specific surface area, and the synergistic effect between mixed metal valenc ...
DOI:
10.1016/j.foodchem.2022.134370

8. Rational modification of hydroxy-functionalized covalent organic frameworks for enhanced photocatalytic hydrogen peroxide evolution

Author:
Hao Hu; Yinglong Tao; Di Wang; Changlai Li; Qichao Jiang; Yuexin Shi; Jian Wang; Jinping Qin; Shijian Zhou; Yan Kong
Source:
Journal of colloid and interface science 2023 v.629 pp. 750-762
ISSN:
0021-9797
Subject:
aqueous solutions,   etc   ; absorption; aldehydes; dissociation; hydrogen peroxide; irradiation; isopropyl alcohol; light; photocatalysis; photocatalysts; structure-activity relationships; tautomerization;     Show all 12 Subjects
Abstract:
... Covalent organic frameworks (COFs), a class of flexibly tunable crystalline materials, have fascinating potential in photocatalytic hydrogen peroxide (H₂O₂) evolution under visible light irradiation. However, achieving efficient catalytic activity by tuning the composition of COFs and the linkages of building blocks is still a challenge. Herein, four imine-linked COFs with different numbers of hyd ...
DOI:
10.1016/j.jcis.2022.09.111

9. Effect of ionic strength, pH and temperature on the behaviour of re-dispersed BC:CMC - A comparative study with xanthan gum

Author:
D. Martins; F. Dourado; M. Gama
Source:
Food hydrocolloids 2023 v.135 pp. 108163
ISSN:
0268-005X
Subject:
aqueous solutions,   etc   ; Helianthus annuus; carboxymethylcellulose; centrifugation; comparative study; hydrocolloids; ionic strength; oils; pH; separation; temperature; viscosity; xanthan gum;     Show all 13 Subjects
Abstract:
... The rheological performance of bacterial cellulose and carboxymethyl cellulose (BC:CMC) dry formulations with mass ratios of 1:1, 1:0.75 and 1:0.5 was compared with that of a commercial xanthan gum. The zero-shear viscosity and the yield stress of these hydrocolloids, at concentrations ranging from 0.001% to 0.5% (w/w), were determined by fitting the Cross and Herschel-Bulkley models to the flow c ...
DOI:
10.1016/j.foodhyd.2022.108163

10. Layered silicate edge-linked perylene diimides: Synthesis, self-assembly and energy transfer

Author:
Hongxiao Xiang; Silvano R. Valandro; Eric H. Hill
Source:
Journal of colloid and interface science 2023 v.629 pp. 300-306
ISSN:
0021-9797
Subject:
aqueous solutions,   etc   ; aggregation behavior; anisotropy; aspartic acid; clay; energy transfer; fluorescent dyes; laponite; ligands; nanoparticles; semiconductors; water content;     Show all 12 Subjects
Abstract:
... The control over intermolecular interactions between chromophores at nanomaterial interfaces is important for sensing and light-harvesting applications. To that aim, inorganic nanoparticles with anisotropic shape and surface chemistry can serve as useful supports for organic modification. Herein, novel asymmetric perylene diimides with aspartic acid and oleyl terminal groups were grafted to the ed ...
DOI:
10.1016/j.jcis.2022.09.055

11. Catalyst regulated interfacial synthesis of self-standing covalent organic framework membranes at room temperature for molecular separation

Author:
Jia He; Lingzhu Yu; Zhiyu Li; Shengdong Ba; Fang Lan; Yao Wu
Source:
Journal of colloid and interface science 2023 v.629 pp. 428-437
ISSN:
0021-9797
Subject:
aqueous solutions,   etc   ; adsorption; ambient temperature; catalysts; crystal structure; liquid-liquid interface; methylene chloride; polymerization; surface area; water treatment;     Show all 10 Subjects
Abstract:
... Covalent organic framework (COF) membranes have shown enormous potential for molecular separation due to their large surface areas and pre-designable structures. However, the mild and convenient preparation of COF membranes with high crystallinity has remained a significant challenge. In this work, we reported on a facile liquid–liquid interfacial polymerization method to fabricate self-standing i ...
DOI:
10.1016/j.jcis.2022.09.036

12. Fabrication of self-antibacterial chitosan/oxidized starch polyelectrolyte complex sponges for controlled delivery of curcumin

Author:
Ecaterina Stela Dragan; Claudiu Augustin Ghiorghita; Maria Valentina Dinu; Ioana A. Duceac; Sergiu Coseri
Source:
Food hydrocolloids 2023 v.135 pp. 108147
ISSN:
0268-005X
Subject:
aqueous solutions,   etc   ; Fourier transform infrared spectroscopy; adsorption; anions; chitosan; curcumin; electron microscopy; electrostatic interactions; energy-dispersive X-ray analysis; freeze drying; hydrocolloids; oxidation; pH; potato starch; rice starch; starch;     Show all 16 Subjects
Abstract:
... Herein, we present novel porous polyelectrolyte complexes (PECs) physically stabilized by electrostatic interaction between chitosan (CS) and oxidized starch of two sources, i.e. potato starch (OxPS), and rice starch (OxRS). Two strategies were employed for the preparation of PECs sponges: (i) freeze-thawing of CS aqueous solution followed by freeze-drying and adsorption of the polyanion solution, ...
DOI:
10.1016/j.foodhyd.2022.108147

13. Reply to the ‘Comment on Cage occupancy of methane clathrate hydrates in the ternary H₂O–NH₃–CH₄ system’ by S. Alavi and J. Ripmeester, Chem. Commun., 2022, 58, DOI: 10.1039/D1CC06526B

Author:
Mathieu Choukroun; Claire Petuya; Tuan H. Vu; Arnaud Desmedt; Ashley Gerard Davies; Christophe Sotin
Source:
Chemical communications 2022 v.58 no.25 pp. 4099-4102
ISSN:
1364-548X
Subject:
aqueous solutions,   etc   ; ammonia; methane;     Show all 3 Subjects
Abstract:
... Our recent Communication suggested that ammonia in aqueous solution may preferentially destabilize large cages in methane clathrate hydrates. A Comment favored ammonia incorporation instead, but it did not accurately describe our proposed mechanism and relied primarily on studies conducted in different chemical systems and/or which used other preparation methods. ...
DOI:
10.1039/d2cc00568a

14. A combined study on structures and vibrational spectra of the antiviral rimantadine using SQMFF and DFT calculations

Author:
Maximiliano A. Iramain; José Ruiz Hidalgo; Tom Sundius; Silvia Antonia Brandán
Source:
Heliyon 2022 v.8 no.8 pp. e10102
ISSN:
2405-8440
Subject:
aqueous solutions,   etc   ; niclosamide; solvation;     Show all 3 Subjects
Abstract:
... In this research, a combined study on structures and vibrational spectra of antiviral rimantadine have been performed using hybrid B3LYP/6–311++G∗∗ calculations and the scaled quantum force field (SQMFF) procedure. Harmonic force fields and scaled force constants of Free Base (FB), Cationic (CA) and Hydrochloride (HCl) species derived from the antiviral rimantadine have been calculated in gas phas ...
DOI:
10.1016/j.heliyon.2022.e10102

15. The enhancement and mechanism of potential-assisted method on 2-mercaptobenzobthiazole assembled film for copper protection

Author:
Yeyin Tao; Xingyun Chen; Shusen Peng; Yongcun Ma
Source:
Colloids and surfaces 2022 v.638 pp. 128280
ISSN:
0927-7757
Subject:
aqueous solutions,   etc   ; electrochemistry; oxidation;     Show all 3 Subjects
Abstract:
... Self-assembled organothiol is a well-known process to endow specific protective properties and usually involves passive incubation. Researchers have recently confirmed that the potential-assisted method is more selective and faster than the passive method. This paper provides an original and promising approach for Cu protection by 2-mercaptobenzobthiazole (MBT) assembled film prepared from an aque ...
DOI:
10.1016/j.colsurfa.2022.128280

16. Explanation for the selective crystallization from inosine solutions using mid-frequency Raman difference spectra analysis

Author:
Fenghua Chen; Chenmei Yang; Xinyu Cheng; Yingjie Fan; Xinyuan Chen; Shizhao Ren; Rongrong Xue
Source:
RSC advances 2022 v.12 no.29 pp. 18301-18306
ISSN:
2046-2069
Subject:
aqueous solutions,   etc   ; crystallization; inosine;     Show all 3 Subjects
Abstract:
... Mid-frequency Raman difference spectra (MFRDS) analysis can be used to reveal the selective crystallization from solutions through determining the degree of similarity of the short-range orders between the assemblies of small organic molecules in solutions and their solid phases. Four solid phases of inosine (IR) (α-anhydrous IR (α-IR), β-anhydrous IR (β-IR), IR dihydrate (IRD), and amorphous IR ( ...
DOI:
10.1039/d2ra02797f

17. Removal of acid orange II azo dyes using Fe-based metallic glass catalysts by Fenton-like process

Author:
A. Lassoued; L. J. Liu; J. F. Li
Source:
Journal of materials science 2022 v.57 no.3 pp. 2039-2052
ISSN:
0022-2461
Subject:
aqueous solutions,   etc   ; glass; pollutants;     Show all 3 Subjects
Abstract:
... The unique structural characteristics of metallic glasses make them highly qualified to be applied in the treatment of organic pollutants. In this work, the degradation of azo dyes in aqueous solutions by using Fe₇₈₋ₓCoₓSi₉B₁₃ (with x = 0, 6 and 12) metallic glass (MG) ribbons was performed, taking Acid Orange II (AO II) as colorant model pollutant. UV–vis spectral changes of AO II in aqueous solu ...
DOI:
10.1007/s10853-021-06669-5

18. Influence of Long-Range Forces on the Transition States and Dynamics of NaCl Ion-Pair Dissociation in Water

Author:
Dedi Wang; Renjie Zhao; John D. Weeks; Pratyush Tiwary
Source:
Journal of physical chemistry 2022 v.126 no.2 pp. 545-551
ISSN:
1520-5207
Subject:
aqueous solutions,   etc   ; computers; dissociation; solvents;     Show all 4 Subjects
Abstract:
... We study NaCl ion-pair dissociation in a dilute aqueous solution using computer simulations both for the full system with long-range Coulomb interactions and for a well-chosen reference system with short-range intermolecular interactions. Analyzing results using concepts from Local Molecular Field (LMF) theory and the recently proposed AI-based analysis tool “State predictive information bottlenec ...
DOI:
10.1021/acs.jpcb.1c09454

19. Anodic stripping voltammetry using underpotential deposition allows sub 10 ppb measurement of Total As and As(III) in water

Author:
Yifei Zhang; Richard G. Compton
Source:
Talanta 2022 v.247 pp. 123578
ISSN:
0039-9140
Subject:
aqueous solutions,   etc   ; arsenic; gold; voltammetry;     Show all 4 Subjects
Abstract:
... We report a sensitive stripping voltammetry method for the detection of total arsenic in aqueous solution using gold macroelectrodes based on the underpotential deposition (UPD) of As ad-atoms. The detection of As(III) or total arsenic can be selectively made by changing deposition potential, with detection of the total As content by deposition at high potential (- 1.3 V) and of As(III) by deposit ...
DOI:
10.1016/j.talanta.2022.123578

20. Deformation and coalescence of particle-stabilized oil droplets in drying aqueous NaCl solutions

Author:
Kohei Abe; Susumu Inasawa
Source:
Colloids and surfaces 2022 v.632 pp. 127816
ISSN:
0927-7757
Subject:
aqueous solutions,   etc   ; deformation; evaporation; oils; silica;     Show all 5 Subjects
Abstract:
... The effects of ion concentration on the deformation and coalescence of particle-stabilized oil droplets dispersed in water were investigated. We emulsified a mixture of oil and an aqueous solution of silica particles with various NaCl concentrations ranging from 0 M to 3 M. Oil droplets were spontaneously compressed by evaporation of the water phase. At low ion concentrations (< 0.1 M), the drople ...
DOI:
10.1016/j.colsurfa.2021.127816