Opportunities regarding the potential use of the self-cleaning concept within urban contemporary architecture in Romania

Contemporary urban architecture faces two important issues: degradation of buildings, caused by exposure to various environmental factors (air and water pollution, mainly generated by the fuels combustion used for transport and heating) and also the costs for repair, cleaning and maintenance of the buildings facades. Regarding the last mentioned aspects, recent research led to development of materials with self-cleaning potential and consequently pollution reduction. Self-cleaning concrete represents a state-of-the-art material with photocatalytic properties generated by the addition in its composition of nanomaterials like TiO2. Already known for its intrinsic photocatalytic character, TiO2 has the ability to catalyse the decomposition of organic substances like grease and dirt, facilitating their quick removal only by rainwater action. Therefore, a building façade made of TiO2-SiO2-containing material develops substantial savings regarding maintenance costs, water consumption and less detergents contamination due to its intrinsic super hydrophilic effect of the surface in the presence of UV radiation, leading to easy dirt removal when water reaches it. The aim of present paper is presenting the latest stage of worldwide research regarding the obtaining of self-cleaning concrete and also the possibility of adapting the concept to the actual Romanian architecture needs, as a sustainable solution for urban pollution reduction.

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State of the Art on Carbonic Anhydrase Modulators for Biomedical Purposes

Current Medicinal Chemistry ◽

10.2174/0929867325666180622120625 ◽

2019 ◽

Vol 26 (15) ◽

pp. 2558-2573 ◽

Cited By ~ 7

Author(s):

Murat Bozdag ◽

Abdulmalik Saleh Alfawaz Altamimi ◽

Daniela Vullo ◽

Claudiu T. Supuran ◽

Fabrizio Carta

Keyword(s):

Central Nervous System ◽

Nervous System ◽

State Of The Art ◽

Cellular Level ◽

Hydration Reaction ◽

Carbonic Anhydrases ◽

Crucial Importance ◽

Learning Impairments ◽

Current Review ◽

Potential Use

The current review is intended to highlight recent advances in the search of new and effective modulators of the metalloenzymes Carbonic Anhydrases (CAs, EC 4.2.1.1) expressed in humans (h). CAs reversibly catalyze the CO2 hydration reaction, which is of crucial importance in the regulation of a plethora of fundamental processes at cellular level as well as in complex organisms. The first section of this review will be dedicated to compounds acting as activators of the hCAs (CAAs) and their promising effects on central nervous system affecting pathologies mainly characterized from memory and learning impairments. The second part will focus on the emerging chemical classes acting as hCA inhibitors (CAIs) and their potential use for the treatment of diseases.

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Anodic voltammetry of pyrazolone derivatives with the help of the self-cleaning rotating electrode

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19870066 ◽

1987 ◽

Vol 52 (1) ◽

pp. 66-71 ◽

Cited By ~ 1

Author(s):

Vesselin C. Noninski ◽

Emanuel B. Sobowale

Keyword(s):

Electrochemical Oxidation ◽

The Self ◽

Good Reproducibility ◽

Rotating Electrode ◽

Pyrazolone Derivatives ◽

Self Cleaning ◽

Anodic Voltammetry

Nine pyrazolone derivatives have been studied by anodic voltammetry using gold self-cleaning rotating electrode (SRE). Voltamograms of good reproducibility are presented. On the basis of voltammetric data a mechanism is proposed for the electrochemical oxidation of sodium 1-phenyl-2,3-dimethyl-4-(N-methylamino)pyrazol-5-one-N-methansulphonate and 1-phenyl-2,3-dimethyl-4-(dimethylamino)pyrazol-5-one in protic medium.

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Study on the self-cleaning and thermal reducing abilities of TiO2 coated clay roof tile

10.1063/5.0037519 ◽

2021 ◽

Author(s):

Maulida Rahayu ◽

Sujito ◽

Edy Wibowo ◽

S. Sutisna

Keyword(s):

The Self ◽

Roof Tile ◽

Self Cleaning

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Self-Cleaning Polyester Fabric Prepared with TiOF2 and Hexadecyltrimethoxysilane

Polymers ◽

10.3390/polym13030387 ◽

2021 ◽

Vol 13 (3) ◽

pp. 387

Author(s):

Euigyung Jeong ◽

Heeju Woo ◽

Yejin Moon ◽

Dong Yun Lee ◽

Minjung Jung ◽

...

Keyword(s):

Methylene Blue ◽

Contact Angle ◽

Treatment Method ◽

Polyester Fabric ◽

Anatase Tio2 ◽

The Self ◽

Water Contact ◽

Direct Fluorination ◽

Tomato Ketchup ◽

Self Cleaning

In this study, self-cleaning polyester (PET) fabrics were prepared using TiOF2 and hexadecyltrimethoxysilane(HDS) treatment. TiOF2 was synthesized via direct fluorination of a precursor TiO2 at various reaction temperatures. The prepared PET fabrics had superior photocatalytic self-cleaning properties compared with anatase TiO2/HDS-treated PET fabrics under UV and sunlight with 98% decomposition of methylene blue. TiOF2/HDS-treated PET fabrics also had superior superhydrophobic self-cleaning properties compared with anatase TiO2/HDS-treated PET fabrics with a 161° water contact angle and 6° roll-off angle. After the self-cleaning tests of the non-dyed TiOF2/HDS-treated PET fabrics, we prepared dyed TiOF2/HDS-treated PET fabrics to test practical aspects of the treatment method. These PET fabrics were barely stained by tomato ketchup; even when stained, they could be self-cleaned within 4 h. These results suggest that practical self-cleaning PET fabrics with superhydrophobicity and photocatalytic degradation could be prepared using TiOF2/HDS-treatment.

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