Continuous hydrothermal synthesis of inorganic materials in a near-critical water flow reactor; the one-step synthesis of nano-particulate Ce1 − xZrxO2 (x = 0–1) solid solutions

2001 ◽  
Vol 11 (2) ◽  
pp. 561-568 ◽  
Author(s):  
Albertina Cabañas ◽  
Jawwad A. Darr ◽  
Edward Lester ◽  
Martyn Poliakoff
Keyword(s):  
Hydrothermal Synthesis ◽  
Water Flow ◽  
Solid Solutions ◽  
Flow Reactor ◽  
Inorganic Materials ◽  
One Step ◽  
The One

scholarly journals Synthesis of Monoclinic Vanadium Dioxide via One-Pot Hydrothermal Route

2021 ◽  
Vol 5 (1) ◽  
pp. 13
Author(s):  
Guowei Liu ◽  
Zengyan Du ◽  
Ming Li ◽  
Yi Long
Keyword(s):  
Hydrothermal Synthesis ◽  
Vanadium Dioxide ◽  
Annealed Sample ◽  
Solar Modulation ◽  
Smart Window ◽  
Hydrothermal Route ◽  
One Pot ◽  
Uniform Size ◽  
One Step ◽  
The One

Pure monoclinic vanadium dioxide nanoparticles (VO2 NPs) with a controlled uniform size are considered essential for the preparation of thermochromic smart window coatings on desired substrates. Herein, we report a facile one-step hydrothermal synthesis of VO2(M) NPs without post-treatment of annealing, which may induce unwanted aggregation of NPs. In contrast with the annealed sample, the one-step processed VO2(M) NPs exhibit superior thermochromic performance with the solar modulation efficiency of 11.8% and luminous transmittance of 37.3%.

Preparation of Ti mesh supported N–S–C-tridoped TiO2 nanosheets to achieve high utilization of optical energy for photocatalytic degradation of norfloxacin

RSC Advances ◽  
2016 ◽  
Vol 6 (22) ◽  
pp. 17906-17912 ◽  
Author(s):  
Xiaoyun Zhang ◽  
Dong Li ◽  
Jiafeng Wan ◽  
Xiujuan Yu
Keyword(s):  
Hydrothermal Synthesis ◽  
Photocatalytic Degradation ◽  
Synthesis Method ◽  
Optical Energy ◽  
Tio2 Nanosheets ◽  
One Step ◽  
High Utilization ◽  
The One ◽  
Ti Mesh

The Ti mesh supported N–S–C-tridoped TiO2 nanosheet (N–S–C/TiO2/TMs) catalysts were successfully fabricated by the one-step in situ hydrothermal synthesis method, and then used for photocatalytic degradation of norfloxacin.

Study on the one-step hydrothermal synthesis of REY (rare earth Y) zeolites from kaolin activated by microwave heating

2022 ◽  
Vol 128 (2) ◽  
Author(s):  
Yuan He ◽  
Shenghui Guo ◽  
Shiwei Li ◽  
Libo Zhang ◽  
Shaohua Yin
Keyword(s):  
Rare Earth ◽  
Hydrothermal Synthesis ◽  
Microwave Heating ◽  
Y Zeolites ◽  
One Step ◽  
The One

Hydrothermal synthesis of a Ba and Mg co-doped Bi12GeO20 photocatalyst with enhanced visible light catalytic activity

RSC Advances ◽  
2016 ◽  
Vol 6 (19) ◽  
pp. 15745-15752 ◽  
Author(s):  
Yi Chen ◽  
Jianzhang Fang ◽  
Shaoyou Lu ◽  
Chaoping Cen ◽  
Cong Cheng ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrothermal Synthesis ◽  
Visible Light ◽  
Band Gap ◽  
Hydrothermal Method ◽  
One Step ◽  
The One ◽  
Co Doped

(Ba, Mg)-codoped Bi12GeO20 was successfully synthesized through the one-step hydrothermal method, and the band gap was greatly narrowed.

Droplet Factories: Synthesis and Assembly of Silver and Palladium Nanoparticles at the Liquid-Liquid Interface

2019 ◽  
Author(s):  
Suchanuch Sachdev ◽  
Rhushabh Maugi ◽  
Sam Davis ◽  
Scott Doak ◽  
Zhaoxia Zhou ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Reaction Rate ◽  
Tertiary Structure ◽  
Flow Reactor ◽  
Pd Nanoparticles ◽  
Subsequent Removal ◽  
Immiscible Liquids ◽  
Flow Reactors ◽  
Droplet Flow ◽  
One Step

<div>The interface between two immiscible liquids represent an ideal substrate for the assembly of nanomaterials. The defect free surface provides a reproducible support for creating densely packed ordered materials. Here a droplet flow reactor is presented for the synthesis and/ or assembly of nanomaterials at the interface of the emulsion. Each droplet acts as microreactor for a reaction between decamethylferrocene (DmFc) within the hexane and metal salts (Ag+/ Pd2+) in the aqueous phase. The hypothesis was that a spontaneous, interfacial reaction would lead to the assembly of nanomaterials creating a Pickering emulsion. The subsequent removal of the solvents showed how the Ag nanoparticles were trapped at the interface and retain the shape of the droplet, however the Pd nanoparticles were dispersed with no tertiary structure. To further exploit this, a one-step process where the particles are synthesised and then assembled into core-shell materials was proposed. The same reactions were performed in the presence of oleic acid stabilise Iron oxide nanoparticles dispersed within the hexane. It was shown that by changing the reaction rate and ratio between palladium and iron oxide a continuous coating of palladium onto iron oxide microspheres can be created. The same reaction with silver, was unsuccessful and resulted in the silver particles being shed into solution, or incorporated within the iron oxide micro particle. These insights offer a new method and chemistry within flow reactors for the creation of palladium and silver nanoparticles. We use the technique to create metal coated iron oxide nanomaterials but the methodology could be easily transferred to the assembly of other materials.</div><div><br></div>

A Study on the Rearrangement of Dialkyl 1-Aryl-1-hydroxymethylphosphonates to Benzyl Phosphates

2020 ◽  
Vol 24 (4) ◽  
pp. 465-471 ◽  
Author(s):  
Zita Rádai ◽  
Réka Szabó ◽  
Áron Szigetvári ◽  
Nóra Zsuzsa Kiss ◽  
Zoltán Mucsi ◽  
...  
Keyword(s):  
Quantum Chemical ◽  
Room Temperature ◽  
Phase Transfer ◽  
One Pot ◽  
Substrate Dependence ◽  
Triethylbenzylammonium Chloride ◽  
One Step ◽  
The Pudovik Reaction ◽  
The One ◽  
Solid Liquid

The phospha-Brook rearrangement of dialkyl 1-aryl-1-hydroxymethylphosphonates (HPs) to the corresponding benzyl phosphates (BPs) has been elaborated under solid-liquid phase transfer catalytic conditions. The best procedure involved the use of triethylbenzylammonium chloride as the catalyst and Cs2CO3 as the base in acetonitrile as the solvent at room temperature. The substrate dependence of the rearrangement has been studied, and the mechanism of the transformation under discussion was explored by quantum chemical calculations. The key intermediate is an oxaphosphirane. The one-pot version starting with the Pudovik reaction has also been developed. The conditions of this tandem transformation were the same, as those for the one-step HP→BP conversion.

scholarly journals One-Year Clinical Evaluation of the Bonding Effectiveness of a One-Step, Self-Etch Adhesive in Noncarious Cervical Lesion Therapy

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Babacar Faye ◽  
Mouhamed Sarr ◽  
Khaly Bane ◽  
Adjaratou Wakha Aidara ◽  
Seydina Ousmane Niang ◽  
...  
Keyword(s):  
Clinical Performance ◽  
Retention Rate ◽  
Recall Rate ◽  
Acid Etching ◽  
Significant Difference ◽  
Usphs Criteria ◽  
One Step ◽  
One Year ◽  
The One ◽  
Self Etch

This study evaluated the one-year clinical performance of a one-step, self-etch adhesive (Optibond All-in-One, Kerr, CA, USA) combined with a composite (Herculite XRV Ultra, Kerr Hawe, CA, USA) to restore NCCLs with or without prior acid etching. Restorations performed by the same practitioner were evaluated at baseline and after 3, 6, and 12 months using modified USPHS criteria. At 6 months, the recall rate was 100%. The retention rate was 84.2% for restorations with prior acid etching, but statistically significant differences were observed between baseline and 6 months. Without acid etching, the retention rate was 77%, and no statistically significant difference was noted between 3 and 6 months. Marginal integrity (93.7% with and 87.7% without acid etching) and discoloration (95.3% with and 92.9% without acid etching) were scored as Alpha or Bravo, with better results after acid etching. After one year, the recall rate was 58.06%. Loss of pulp vitality, postoperative sensitivity, or secondary caries were not observed. After one year retention rate was of 90.6% and 76.9% with and without acid conditioning. Optibond All-in-One performs at a satisfactory clinical performance level for restoration of NCCLs after 12 months especially after acid etching.

scholarly journals Building up cyclodextrins from scratch – templated enzymatic synthesis of cyclodextrins directly from maltose

2021 ◽  
Author(s):  
Dennis Larsen ◽  
Sophie R. Beeren
Keyword(s):  
Enzymatic Synthesis ◽  
Combinatorial Libraries ◽  
One Step ◽  
The One ◽  
Kinetic Trapping

Template-induced kinetic trapping of specific cyclodextrins in enzyme-mediated dynamic combinatorial libraries of linear and cyclic α-glucans enables the one-step synthesis of cyclodextrins from maltose in water.

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