scholarly journals Copper/Nickel-Decorated Olive Pit Biochar: One Pot Solid State Synthesis for Environmental Remediation

2021 ◽  
Vol 11 (18) ◽  
pp. 8513
Author(s):  
Ahmed M. Khalil ◽  
Laurent Michely ◽  
Rémy Pires ◽  
Stéphane Bastide ◽  
Khouloud Jlassi ◽  
...  
Keyword(s):  
Environmental Remediation ◽  
Sustainable Development Goals ◽  
Hysteresis Loops ◽  
One Pot ◽  
Efficient Catalyst ◽  
Copper Nickel ◽  
Powder Particles ◽  
Development Goals ◽  
The One ◽  
Bimetallic Nanocatalysts

Developing micro- and nanomaterials for environmental pollution remediation is currently a pertinent topic. Among the plethora of strategies, designing supported nanocatalysts for the degradation of pollutants has achieved prominence. In this context, we are addressing one of the UN Sustainable Development Goals by valorizing agrowaste as a source of biochar, which serves as a support for bimetallic nanocatalysts. Herein, olive pit powder particles were impregnated with copper and nickel nitrates and pyrolyzed at 400 °C. The resulting material consists of bimetallic CuNi-decorated biochar. CuNi nanocatalysts were found to be as small as 10 nm and very well dispersed over biochar with zero valent copper and nickel and the formation of copper–nickel solid solutions. The biochar@CuNi (B@CuNi) exhibited typical soft ferromagnet hysteresis loops with zero remanence and zero coercivity. The biochar@CuNi was found to be an efficient catalyst of the reduction in methyl orange (MO) dye, taken as a model pollutant. In sum, the one-pot method devised in this work provides unique CuNi-decorated biochar and broadens the horizons of the emerging topic of biochar-supported nanocatalysts.

scholarly journals Copper/nickel-Decorated Olive Pit Biochar: One Pot Solid State Synthesis for Environmental Remediation

2021 ◽  
Author(s):  
Ahmed M. Khalil ◽  
Laurent Michely ◽  
Rémy Pires ◽  
Stéphane Bastide ◽  
Khouloud Jlassi ◽  
...  
Keyword(s):  
Environmental Remediation ◽  
Hysteresis Loops ◽  
One Pot ◽  
Efficient Catalyst ◽  
New Horizons ◽  
Copper Nickel ◽  
Powder Particles ◽  
Development Goals ◽  
The One ◽  
Bimetallic Nanocatalysts

Developing micro- and nanomaterials for environmental pollution remediation is hot topic presently. Among the plethora of strategies, designing supported nanocatalysts for the degradation of pollutants witnessed constant renewal. In this context, we are addressing one of the UN Sustainable Development Goals by valorizing agrowaste as a source of biochar which serves as support for bimetallic nanocatalysts. Herein, Olive pit powder particles were impregnated with copper and nickel nitrates and pyrolyzed at 400 °C. The resulting material consists of bimetallic CuNi-decorated biochar. CuNi nanocatalysts were found to be as small as 10 nm and very well dispersed over biochar with zero valent copper and nickel and formation of copper-nickel solid solutions. The biochar@CuNi exhibited typical soft ferromagnet hysteresis loops with zero remanence and zero coercivity. The biochar@CuNi was found to be efficient catalyst of the reduction of methyl orange (MO) dye, taken as model pollutant.<br> To sum up, the one pot method devised in this work provided unique CuNi-decorated biochar and opens new horizons for the emerging topic of biochar-supported nanocatalysts.

scholarly journals Copper/nickel-Decorated Olive Pit Biochar: One Pot Solid State Synthesis for Environmental Remediation

2021 ◽  
Author(s):  
Ahmed M. Khalil ◽  
Laurent Michely ◽  
Rémy Pires ◽  
Stéphane Bastide ◽  
Souad Ammar ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Solid State ◽  
Environmental Remediation ◽  
Solid State Synthesis ◽  
One Pot ◽  
Efficient Catalyst ◽  
New Horizons ◽  
Copper Nickel ◽  
Powder Particles ◽  
The One

Olive pit powder particles were impregnated with copper and nickel nitrates and pyrolyzed at 400 °C. The resulting material consists of bimetallic CuNi-decorated biochar. CuNi nanocatalysts were found to be as small as 10 nm and very well dispersed over biochar. XRD results evidenced zero valent copper and nickel and formation of copper-nickel solid solutions.The biochar@CuNi was found to be efficient catalyst of the reduction of methyl orange (MO) dye, taken as model pollutant. <br> To sum up, the one pot method devised in this work provided unique CuNi-decorated biochar and opens new horizons for the emerging topic of biochar-supported nanocatalysts.

scholarly journals Copper/nickel-Decorated Olive Pit Biochar: One Pot Solid State Synthesis for Environmental Remediation

2021 ◽  
Author(s):  
Ahmed M. Khalil ◽  
Laurent Michely ◽  
Rémy Pires ◽  
Stéphane Bastide ◽  
Souad Ammar ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Solid State ◽  
Environmental Remediation ◽  
Solid State Synthesis ◽  
One Pot ◽  
Efficient Catalyst ◽  
New Horizons ◽  
Copper Nickel ◽  
Powder Particles ◽  
The One

Olive pit powder particles were impregnated with copper and nickel nitrates and pyrolyzed at 400 °C. The resulting material consists of bimetallic CuNi-decorated biochar. CuNi nanocatalysts were found to be as small as 10 nm and very well dispersed over biochar. XRD results evidenced zero valent copper and nickel and formation of copper-nickel solid solutions.The biochar@CuNi was found to be efficient catalyst of the reduction of methyl orange (MO) dye, taken as model pollutant. <br> To sum up, the one pot method devised in this work provided unique CuNi-decorated biochar and opens new horizons for the emerging topic of biochar-supported nanocatalysts.

Russian experience in assessing informal employment indicators and their compliance with SDG indicators

2020 ◽  
pp. 1-18
Author(s):  
Elena Zarova ◽  
Dr Konstantin Laykam ◽  
Elvira Dubravskaya ◽  
Sergey Musikhin
Keyword(s):  
Sustainable Development ◽  
Sustainable Development Goals ◽  
International Standards ◽  
Informal Employment ◽  
Formal Sector ◽  
The Sustainable Development ◽  
Development Goals ◽  
The Russian Federation ◽  
The One ◽  
Main Components

This article describes on the one hand statistical methods for assessing informal employment based on the requirements as set by international standards. On the other hand it describes the potential of integrating various data sources to generate informal employment statistics. With as example official statistics of the Russian Federation, the authors show the features of applying the requirements of international standards. Methods are proposed for assessing informal employment in the formal sector of the economy, i.e. in enterprises that submit employment reports to the National Statistical Office. This phenomenon appears in the employment situation of many countries. However, there is no uniformity between countries in how they evaluate the application of the international standards in such assessment exercises. A theoretical model of informal employment is developed and validated based on statistical data published by international organizations. The validation focuses on assessing the causal relationships between informal employment indicators and the main components of the sustainable development goals. This analysis contributes to coordinated decisions on regulating informal employment and ensuring the achievement of the Sustainable Development Goals (SDGs).

ZrCl4 as a mild and efficient catalyst for the one-pot conversion of TBS and THP ethers to acetates

2003 ◽  
Vol 44 (25) ◽  
pp. 4693-4695 ◽  
Author(s):  
Ch.Sanjeeva Reddy ◽  
G Smitha ◽  
S Chandrasekhar
Keyword(s):  
One Pot ◽  
Efficient Catalyst ◽  
The One

Nano-sphere silica sulfuric acid: novel and efficient catalyst in the one-pot multi-component synthesis

2013 ◽  
Vol 10 (6) ◽  
pp. 1297-1301 ◽  
Author(s):  
Ardeshir Khazaei ◽  
Mohammad Ali Zolfigol ◽  
Mohammad Mokhlesi ◽  
Rahele Rostamian
Keyword(s):  
Sulfuric Acid ◽  
Silica Sulfuric Acid ◽  
One Pot ◽  
Efficient Catalyst ◽  
The One

scholarly journals NiO nanoparticles: A highly efficient catalyst for the one-pot three-component synthesis of pyrano [2, 3-d] pyrimidine derivatives in green media.

2021 ◽  
Vol 18 ◽  
Author(s):  
Ellahe Sabbaghnasab ◽  
Enayatollah Sheikhhosseini
Keyword(s):  
Barbituric Acid ◽  
Nio Nanoparticles ◽  
Pyrimidine Derivatives ◽  
One Pot ◽  
Efficient Catalyst ◽  
Environmental Friendliness ◽  
Short Reaction Time ◽  
Pyrimidine Synthesis ◽  
Simple Processing ◽  
The One

: NiO nanoparticles are utilized to effectively strengthen annulated pyrano [2, 3- d] pyrimidine synthesis through primary Knoevenagel, following Micheal and ultimate heterocyclization reactions of aldehyde, malononitrile, and barbituric acid. The characteristics of NiO nanoparticles are identified using advanced techniques, such as IR, UV, EDX, XRD, SEM, and TEM. The nano-NiO particles are mostly below < 100 nm in size with uniform spherical shapes. The adopted approach is advantages thanks to its simple processing, relatively short reaction time, often good to high average yields, convenient workability, and environmental friendliness.

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