Results 91 to 100 of about 1,461,675 (351)

Humic acids in medicine and cosmetics [PDF]

, 2010
Hlavní náplní této práce bylo tvořit internetové a literární rešerše zaměřené na dosud známé teoretické poznatky, patentové přihlášky a skutečné realizace, týkající se využití huminových kyselin nebo materiálů, které je obsahují, v oblasti humánní i ...
Šmídová, Helena
core  

Evaluating the Impact of Cellulose Nanocrystals on the Performance of Polycarbonate Thin‐Film Nanocomposite Membranes for Treating Oily Wastewater

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT A new type of thin‐film nanocomposite (TFN) membrane was synthesized by incorporating cellulose nanocrystals (CNCs) into a polyvinyl alcohol (PVA) top layer on a polycarbonate (PC) substrate via dip‐coating. The synthesized TFC and TFN membranes (PC/PVA TFC and PC/PVA‐CNC TFN membranes) were evaluated using contact angle measurement, field ...
Habib Etemadi, Naser Ghasemian, Homayun Khezraqa, Solmaz Tozihi, Seyed Mehdi Sajjadi, Omid Ahmadi   +5 more
wiley   +1 more source

Coupled Extraction/Re-Extraction Method for the Chemical Speciation of Nickel in NaturalWaters [PDF]

, 2020
Chemical fractionation and speciation of metals species in natural waters and its relation with bioavailability have received increased attention in recent years.
Mendiguchía Martínez, Carolina, Moreno Aguilar, Carlos, Vergel Rodríguez, Cristina   +2 more
core   +2 more sources

Sustainable Graphene Oxide–Intercalated Bentonite Composite for the Effective Removal of Imidacloprid From Water: Adsorption Performance, Isotherm, and Kinetics

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Water is a fundamental necessity for our existence, but its rapid contamination is causing devastating effects on the environment and health of living species worldwide. Adsorptive removal of pollutants is one of the popular water treatment techniques because of its simplicity, affordability, and the broad range of available adsorbents.
Priyanka Negi, Brij Bhushan, Arunima Nayak, Pallavi Singh   +3 more
wiley   +1 more source

Co-engineering biochar and artificial humic substances: advancing photoreduction performance through structure design

Biochar
Engineered biochar with enhanced photochemical properties holds great potential for environmental remediation. However, natural humic substances, crucial players in environmental redox processes, are structurally complex and slow-forming, hindering ...
Liming Sun, Minghao Shen, Chao Jia, Fengbo Yu, Shicheng Zhang, Xiangdong Zhu   +5 more
doaj   +1 more source

Platinum-Containing nanocomposites based on Humic substances from brown coal

Proceedings of the Mongolian Academy of Sciences, 2019
In the presentreport we look intosynthesized silver and gold-containing nanocomposites based on humic substances. The composition and properties of humic substances isolated from brown coal in Mongolian deposits have beenestablished.
Gania Dolmaa, Galina Petrovna Aleksandrova, Marina Vladimerovna Lesnichaya, Byambajav Nomintsetseg, Anatoly Nikolaevich Sapojhnikov, Boris Genadevich Sukhov, Batnasan Bayaraa, Duger Regdel, Boris Aleksandrovich Trofimov   +8 more
doaj   +1 more source

Изучение сорбционных свойств активированного угля и оксигидрооксида алюминия для удаления гуминовых веществ из природных вод [PDF]

, 2015
It is found that the time of adsorption process of organic substances on activated carbon (PAC) Norit SA UF is about 3 hours. The maximum adsorption capacity of activated carbon to organic substances equals to 0.25 mg/mg.
Грязнова, Елена Николаевна, Мачехина, Ксения Игоревна, Романенко, В. А.   +2 more
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Dynamic Ultrasound Evaluation Supraspinatus Tendon Injuries Using a Pilates Elastic Band

Arthroscopy Techniques, EarlyView.
Abstract Supraspinatus tendon tears are a common cause of shoulder pain and dysfunction. Although magnetic resonance imaging and computed tomography arthrography are still considered the gold standard, ultrasound offers a reliable, accessible, and radiation‐free alternative.
Viet‐Tam Van, Charlotte Vifquain, Romain Nicolle, Nicolas Sans, Nicolas Bonnevialle, Marie Faruch‐Bilfeld   +5 more
wiley   +1 more source

Development of photocatalysis‐membrane separation reactor systems for aqueous pollutant removal

PhotoMat, EarlyView., 2023
Abstract Background In our rapidly expanding society, the demand for clean water has steadily emerged as one of the most critical issues, promoting the development of numerous water treatment strategies. Aims Coupling photocatalysis and membrane separation technology provides an energy saving and environment‐friendly as well as sustainable method for ...
Junyang Zhang, Yingchun Miao, Yuning Huo, Hexing Li   +3 more
wiley   +1 more source

Caracterização estrutural das substâncias húmicas aquáticas extraídas dos rios itapanhaú e ribeira de iguape

Química Nova, 2011
The knowledge of the structure characteristic of the Organic Matter is important for the understanding of the natural process. In this context aquatic humic substances (principal fraction) were isolated from water sample collected from the two distinct ...
Danielle Goveia, Julio Cesar Rocha, Luciana Camargo de Oliveira, Leandro Cardoso de Morais, Valquiria de Campos, Leonardo Fernandes Fraceto, André Henrique Rosa   +6 more
doaj   +1 more source