Results 81 to 90 of about 35,854 (188)

Preparation and application of Zero Valent Iron immobilized in Activated Carbon for removal of hexavalent Chromium from synthetic effluent

Revista Ambiente & Água, 2019
Unlike organic contaminants, heavy metals are not biodegradable and tend to accumulate in living organisms; they are also recognized for being toxic or carcinogenic.
Gracieli Xavier Araújo, Raquel Dalla Costa da Rocha, Marcio Barreto Rodrigues   +2 more
doaj   +1 more source

Ultra-Thin Films of Poly(acrylic acid)/Silver Nanocomposite Coatings for Antimicrobial Applications

Journal of Spectroscopy, 2016
In this work not only colloids of poly(acrylic acid) (PAA) embedded with silver nanoparticles (Ag-NPs) but thin films (10 nm) also were deposited using electrospray deposition technique (ESD). A mixture of sodium borohydride (NaBH4) and ascorbic acid (AA)
Alaa Fahmy, Wael H. Eisa, Mohamed Yosef, Ali Hassan   +3 more
doaj   +1 more source

Estudo cinético da redução da massa molar do poli(3-hidroxibutirato-co-3-hidroxivalerato) (PHBHV) Kinetic study of the molecular weight reduction of poly (3-hydroxybutirate-co-3-hydroxyvalerate) (PHBHV)

Polímeros, 2010
Neste trabalho foi realizado um estudo cinético da redução da massa molar do poli(3-hidroxibutirato-co-3-hidroxivalerato) (PHBHV) em três diferentes metodologias: hidrólise ácida com ácido clorídrico, transesterificação com hexilenoglicol ou ...
Sérgio R. Montoro, Carlos Y. Shigue, Marli L. T. de Sordi, Amilton M. dos Santos, Maria I. Ré   +4 more
doaj  

Reaction of N,N’-dimethylformamide and divalent viologen molecule to generate an organic dopant for molybdenum disulfide

AIP Advances, 2018
Tuning the carrier concentration is essential for semiconducting materials to apply optoelectronic devices. Molybdenum disulfide (MoS2) is a semiconducting material composed of atomically thin (∼0.7 nm thickness) layers.
A. Fukui, K. Miura, H. Ichimiya, A. Tsurusaki, K. Kariya, T. Yoshimura, A. Ashida, N. Fujimura, D. Kiriya   +8 more
doaj   +1 more source

Hybrid nanocarriers with different densities of silver nanoparticles formation features and antimicrobial properties

Scientific Reports
This work presents the synthesis and characterization of silica/polyacrylamide hybrid carriers Hyb1 and Hyb2 containing different amounts and lengths of grafted PAAm chains, as well as the formation mechanism, structure, and antibacterial efficacy of ...
Tatyana Zheltonozhskaya, Olga Akopova, Irena Dąbrowska, Nataliya Permyakova, Valeriy Klepko, Dmitro Klymchuk   +5 more
doaj   +1 more source

Photocatalytic reduction of CO2 over Ti3+ self-doped TiO2-based nanomaterials

Journal of CO2 Utilization
In this study, we explored the photocatalytic efficacy of Ti3+-doped TiO2-based photocatalysts for CO2 reduction. The Ti3+ self-doped photocatalysts were synthesized using a straightforward chemical reduction with sodium borohydride (NaBH4).
Rudolf Ricka, Agnieszka Wanag, Ewelina Kusiak-Nejman, Dariusz Moszyński, Miroslava Filip Edelmannová, Martin Reli, Zdeněk Baďura, Giorgio Zoppellaro, Radek Zbořil, Antoni W. Morawski, Kamila Kočí   +10 more
doaj   +1 more source

Template-Assisted Synthesis and Characterization of Passivated Nickel Nanoparticles

Nanoscale Research Letters, 2010
Potential applications of nickel nanoparticles demand the synthesis of self-protected nickel nanoparticles by different synthesis techniques. A novel and simple technique for the synthesis of self-protected nickel nanoparticles is realized by the inter ...
Al-Omari IA, Malini KA, Joy PA, Santhoshkumar G, Sakthi Kumar D, Yoshida Yasuhiko, Veena Gopalan E, Narayanan TN, Anantharaman MR   +8 more
doaj   +1 more source

Chemical reduction of hematite by sodium borohydride [PDF]

, 2005
DA COSTA, GM, DATAS, L, De Grave, Eddy, DE RESENDE, VG   +3 more
core   +1 more source

Thermal Reverse-Engineered Synthesis and Catalytic Activity of Nanogold-Containing Silica Aerogels

Gels
Silica aerogels are extensively used as catalyst supports due to their mesoporous structure and chemical inertness. In this study, SiO2–AuNP aerogels containing gold nanoparticles (AuNPs) were synthesized using the sol-gel method followed by ...
Hanna Judit Csupász-Szabó, Boglárka Döncző, Máté Szarka, Lajos Daróczi, István Lázár   +4 more
doaj   +1 more source

Silicon as an intermediary between renewable energy and hydrogen [PDF]

Non-renewable energy sources are becoming depleted. Air and water (our environment) are precious and will be under increased jeopardy without effective energy and environmental policies.
Auner, Norbert
core