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1. 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

2. 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

3. 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

4. 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

5. Electrocatalytic synthesis of α,α-gem-dihalide ketones from α-mono-halide ketones and unexpected dimer condensation

Author:
Bei Zhou; Yu-Juan He; Yun-Feng Tao; Lan-Xiang Liu; Min Hu; Zu-Hui Chang; Hong Lei; Jun Lin; Tong Lin; Guan-Ben Du
Source:
Green chemistry 2022 v.24 no.7 pp. 2859-2870
ISSN:
1463-9270
Subject:
aqueous solutions,   etc   ; carbon; electrosynthesis; green chemistry;     Show all 4 Subjects
Abstract:
... A novel, environmentally friendly electrocatalytic process has been developed to prepare α,α-gem-dihalide (F, Cl, and Br) ketones from α-mono-halide ketones in an aqueous solution containing alkali halide salts. The gem-dihalides could have the same or different halogens on the same carbon, depending on the reactant and inorganic halide salt used. An electron-withdrawing group, such as carbonyl, l ...
DOI:
10.1039/d1gc04584a

6. CoNiWReP high entropy alloy coatings prepared by pulse current electrodeposition from aqueous solution

Author:
Zhongzheng Zhu; Huimin Meng; Pengwei Ren
Source:
Colloids and surfaces 2022 v.648 pp. 129404
ISSN:
0927-7757
Subject:
aqueous solutions,   etc   ; adhesion; alloys; corrosion; electroplating; entropy;     Show all 6 Subjects
Abstract:
... CoNiWReP high entropy alloy (HEA) coatings have been prepared in aqueous solution using direct current (DC) and pulse current (PC) electrodeposition technologies. The prepared amorphous HEA coatings are silver-white in appearance and have good adhesion to the substrate. The coatings prepared by PC are dense and suitable for engineering purpose. The HEA coatings have a cathodic protection effect fo ...
DOI:
10.1016/j.colsurfa.2022.129404

7. Coexistence of 1 : 1 and 2 : 1 inclusion complexes of indigo carmine

Author:
Oksana Yanshyna; Liat Avram; Linda J. W. Shimon; Rafal Klajn
Source:
Chemical communications 2022 v.58 no.21 pp. 3461-3464
ISSN:
1364-548X
Subject:
aqueous solutions,   etc   ; encapsulation; fluorescence; indigo; indigo carmine;     Show all 5 Subjects
Abstract:
... We show that the optical properties of indigo carmine can be modulated by encapsulation within a coordination cage. Depending on the host/guest molar ratio, the cage can predominantly encapsulate either one or two dye molecules. The 1 : 1 complex is fluorescent, unique for an indigo dye in an aqueous solution. We have also found that binding two dye molecules stabilizes a previously unknown confor ...
DOI:
10.1039/d1cc07081a

8. Linear and nonlinear optical properties of transfer ribonucleic acid (tRNA) thin solid films

Author:
Marjan Ghasemi; Hayoung Jeong; Donggyu Kim; Byungjoo Kim; Joon Ik Jang; Kyunghwan Oh
Source:
RSC advances 2022 v.12 no.14 pp. 8661-8667
ISSN:
2046-2069
Subject:
aqueous solutions,   etc   ; absorption; quartz; refractive index; silicon;     Show all 5 Subjects
Abstract:
... We successfully obtained transfer ribonucleic acid (tRNA) thin solid films (TSFs) using an aqueous solution precursor in an optimized deposition process. By varying the concentration of RNA and deposition process parameters, uniform solid layers of solid RNA with a thickness of 30 to 46 nm were fabricated consistently. Linear absorptions of RNA TSFs on quartz substrates were experimentally investi ...
DOI:
10.1039/d1ra09412b

9. Quinolizinium-based fluorescent probes for formaldehyde detection in aqueous solution, serum, and test strip via 2-aza-Cope rearrangement

Author:
Ajcharapan Tantipanjaporn; Karen Ka-Yan Kung; Hoi-Yi Sit; Man-Kin Wong
Source:
RSC advances 2022 v.12 no.18 pp. 11543-11547
ISSN:
2046-2069
Subject:
aqueous solutions,   etc   ; blood serum; fluorescence; formaldehyde; moieties;     Show all 5 Subjects
Abstract:
... Formaldehyde is an abundant contaminant in food and environments causing various diseases. Thus, the development of fast, simple, and selective formaldehyde detection is of great interest. Herein, novel quinolizinium-based fluorescent probes were designed based on a 2-aza-Cope rearrangement reaction and showed high selectivity to formaldehyde by fluorescence emission shift. We successfully reduced ...
DOI:
10.1039/d2ra01397e

10. Removal of boron by a modified resin in fixed bed column: Breakthrough curve analysis using dynamic adsorption models and artificial neural network model

Author:
Shuqin Bai; Jiaxin Li; Wei Ding; Shuxuan Chen; Ru Ya
Source:
Chemosphere 2022 v.296 pp. 134021
ISSN:
0045-6535
Subject:
aqueous solutions,   etc   ; adsorption; boron; neural networks; toxicity;     Show all 5 Subjects
Abstract:
... Continuous removal of toxic element boron from aqueous solution was investigated with new phenolic hydroxyl modified resin (T-resin) using a fixed bed column reactor operated under various flow rates, bed height and influent concentrations. The breakthrough time, exhaustion time and uptake capacity of the column bed increased with increasing column bed height, whereas decreased with increasing inf ...
DOI:
10.1016/j.chemosphere.2022.134021

11. A non-toxic for environmental electrolyte terminating for the analysis of stilbene derivatives by the isotachophoresis technique

Author:
Joanna Jabłońska; Mariusz Kluska; Nikolai Erchak; Wiesław Prukała
Source:
International journal of environmental analytical chemistry 2022 v.102 no.2 pp. 483-490
ISSN:
1029-0397
Subject:
aqueous solutions,   etc   ; analytical chemistry; electrophoresis; pH; paper; stilbenes;     Show all 6 Subjects
Abstract:
... This work presents the new-generation terminating electrolyte for isotachophoresis analysis of stilbene derivatives. The terminating electrolyte used was the aqueous solution of 4,4ʹ-bis[(1-morpholiniomethyl)spirobi(1-sila-2,5-dioxacyclopentan-3-on)at]. Stilbene derivatives were used as test substances. In order to be able to use the new terminating electrolyte, the researchers developed a new met ...
DOI:
10.1080/03067319.2020.1723569

12. An aqueous room-temperature phosphorescent probe for Gd³⁺

Author:
Jiazhuo Li; Ying Wang; Xiaoming Jiang; Peng Wu
Source:
Chemical communications 2022 v.58 no.16 pp. 2686-2689
ISSN:
1364-548X
Subject:
aqueous solutions,   etc   ; ambient temperature; coordination polymers; fluorescein; phosphorescence;     Show all 5 Subjects
Abstract:
... An aqueous room-temperature phosphorescent (RTP) probe for Gd³⁺ is reported based on Gd³⁺-induced intersystem promoting effect and the oxygen-shielding property of the Gd³⁺/AMP/fluorescein coordination polymer nanoparticles (CPNs). Besides selective Gd³⁺ detection, the results are important for harnessing the advantages of RTP detection in an aerated aqueous solution, which is difficult with curre ...
DOI:
10.1039/d1cc06229h

13. The Ratio of Chemical and Physical CO₂ Absorption Capacity in Triethanolamine and Methyl-diethanolamine Solution Systems

Author:
Sang-Jun Han; Jung-Ho Wee
Source:
Energy & fuels 2022 v.36 no.11 pp. 5805-5815
ISSN:
1520-5029
Subject:
aqueous solutions,   etc   ; absorption; carbon dioxide; electrical conductivity; energy;     Show all 5 Subjects
Abstract:
... The present paper reports the ratio of real chemical (rCACC) and physical (rCACP) CO₂ absorption capacity to total absorption capacity (CACT) at absorption time t in 0.01–0.05 mol/L (M) triethanolamine (TEA) and methyl-diethanolamine (MDEA) aqueous solution systems; this is calculated based on the directly measured electrical conductivity (ECₘ) of the solutions during the absorption time. Although ...
DOI:
10.1021/acs.energyfuels.2c00176

14. A review on experimental chemically modified activated carbon to enhance dye and heavy metals adsorption

Author:
Marzia Sultana; Mahbub Hasan Rownok; Meherunnesa Sabrin; Md Hafezur Rahaman; S.M.Nur Alam
Source:
Cleaner engineering and technology 2022 v.6 pp. 100382
ISSN:
2666-7908
Subject:
aqueous solutions,   etc   ; activated carbon; adsorption; dyes; technology; toxicity; wastewater;     Show all 7 Subjects
Abstract:
... Effective and low-cost removal of dye and heavy metals from wastewater still is a great challenge for researchers. Adsorption using activated carbon is widely used in removing these toxic pollutants. Physical, chemical, and biological modifications have been studied for improving activated carbon adsorption performance. Literature suggests that chemical modified activated carbon showed maximum ads ...
DOI:
10.1016/j.clet.2021.100382

15. Comparison of improvements of aqueous dissolution of structurally analogous hydrophobic drugs by amorphous solid dispersion

Author:
Takashi Okamoto; Kayoko Yamamoto; Takanari Sekitoh; Akiho Fujioka; Hiroyuki Imanaka; Naoyuki Ishida; Koreyoshi Imamura
Source:
Colloids and surfaces 2022 v.632 pp. 127744
ISSN:
0927-7757
Subject:
aqueous solutions,   etc   ; drug carriers; heat treatment; hydrophobicity; ibuprofen; sugars;     Show all 6 Subjects
Abstract:
... Amorphous solid dispersion (ASD) technique is promising to increase the dissolution of hydrophobic drug in aqueous solution systems, including in vivo. However, there is a serious lack of understanding of the impact of the molecular characteristics of a hydrophobic drug on the aqueous dissolution behavior of the drug from the ASD. This is because there are many structural differences between diffe ...
DOI:
10.1016/j.colsurfa.2021.127744

16. Micromechanism Underlying Wetting Behavior of the Vacuum Membrane Distillation during Desalination

Author:
Lei Jiao; Lida Meng; Kangkang Yan; Jing Wang; Ge Li; Zhikan Yao; Zhilin Sun; Lin Zhang
Source:
Industrial & engineering chemistry process design and development 2022 v.61 no.12 pp. 4428-4435
ISSN:
1520-5045
Subject:
aqueous solutions,   etc   ; crystallization; desalination; distillation; models; nanofibers; process design;     Show all 7 Subjects
Abstract:
... Membrane wetting is a crucial issue in the desalination process by vacuum membrane distillation (VMD). However, the micromechanism of the wetting behavior is far from clear. Here, electrospun nanofiber membranes (ENMs) had been utilized to clarify the pore variations inside the membrane for desalination from NaCl aqueous solution, where the distinct open pore structure of ENMs could address the ch ...
DOI:
10.1021/acs.iecr.1c05035

17. Narcissistic Self-Sorting of Amphiphilic Collagen-Inspired Peptides in Supramolecular Vesicular Assembly

Author:
Tomoyuki Koga; Aika Ikejiri; Nobuyuki Higashi
Source:
Langmuir 2022 v.38 no.7 pp. 2294-2300
ISSN:
1520-5827
Subject:
aqueous solutions,   etc   ; isomerization; moieties; nanobiotechnology; peptides; temperature; ultraviolet radiation;     Show all 7 Subjects
Abstract:
... Herein, we describe the hierarchical self-assembly accompanying self-sorting of collagen-inspired peptides (CPs). The two amphiphilic CPs used in this study contained an azobenzene (Az) moiety at the N-terminal, connected through a flexible spacer, but with different lengths of the (Gly-Pro-Hyp)ₙ triplet (n = 5 and 7). When the CP aqueous solution (60 °C) was cooled to 4 °C, both CPs formed a trip ...
DOI:
10.1021/acs.langmuir.1c02978

18. Polyelectrolyte Hydrogels as Draw Agents for Desalination of Solutions with Multivalent Ions

Author:
Oleg V. Rud; Alexander D. Kazakov; Lucie Nova; Filip Uhlik
Source:
Macromolecules 2022 v.55 no.5 pp. 1763-1770
ISSN:
1520-5835
Subject:
aqueous solutions,   etc   ; calcium; desalination; hydrogels; ionic strength; ionization; seawater;     Show all 7 Subjects
Abstract:
... We model a process of seawater desalination that employs compression of a weak polyelectrolyte hydrogel as the drawing force for ion transfer. We model seawater as an aqueous solution containing mono- and divalent ions, Na⁺, Cl–, and Ca²⁺. We demonstrate that the compression of hydrogel in equilibrium with a bath containing such a solution creates two types of ion flow. The first type is the excha ...
DOI:
10.1021/acs.macromol.1c02266

19. Potassium promoted Gd0.06Co catalysts for highly efficient catalytic N2O decomposition in presence of impurity gases at low temperature

Author:
Ying Xiong; Yumei Zhao; Weijun Shan; Xiaogeng Feng; Junshuo Cui; Zhenning Lou; Guoxiang Shao; Min Dong; Haibiao Yu
Source:
Chemosphere 2022 v.303 pp. 135257
ISSN:
0045-6535
Subject:
aqueous solutions,   etc   ; catalysts; catalytic activity; oxygen; potassium; synergism; temperature;     Show all 7 Subjects
Abstract:
... In order to enhance the catalytic performance of the Gd-modified Co₃O₄ catalyst (Gd₀.₀₆Co) for the N₂O decomposition, alkali metal K was introduced as the promoter by impregnating the Gd₀.₀₆Co powder with an aqueous solution of KNO₃ (with K/Co ratios 0.01–0.05). With the doping of K, the catalytic activity over Gd₀.₀₆Co was significantly improved and the temperature of N₂O complete decomposition w ...
DOI:
10.1016/j.chemosphere.2022.135257

20. Separation of halloysite/kaolinite mixtures in water controlled by sucrose addition: The influence of the attractive forces on the sedimentation behavior

Author:
Martina Maria Calvino; Giuseppe Cavallaro; Lorenzo Lisuzzo; Stefana Milioto; Giuseppe Lazzara
Source:
Colloids and surfaces 2022 v.641 pp. 128530
ISSN:
0927-7757
Subject:
aqueous solutions,   etc   ; clay; halloysite; kaolinite; nanotubes; solvents; sucrose; thermogravimetry;     Show all 8 Subjects
Abstract:
... In this work, we propose an easy strategy for the separation of halloysite/kaolinite mixtures in sucrose aqueous solution. Preliminarily, we investigated the influence of the sucrose addition on the colloidal stability of kaolinite nanoplates and halloysite nanotubes (HNTs) dispersed in water. Dynamic Light Scattering (DLS) measurements revealed that the HNTs aqueous mobility is dependent on the s ...
DOI:
10.1016/j.colsurfa.2022.128530