scholarly journals Sustainable production of value-added chemicals and fuels by using a citric acid-modified carbon nitride optical semiconductor

2021 ◽  
Vol 609 ◽  
pp. 117912
Author(s):  
Raquel A. Fernandes ◽  
Maria J. Sampaio ◽  
Eliana S. Da Silva ◽  
Hanane Boumeriame ◽  
Tânia Lopes ◽  
...  
Keyword(s):  
Citric Acid ◽  
Carbon Nitride ◽  
Value Added ◽  
Sustainable Production

Sustainable production of liquid biofuels and value-added platform chemicals by hydrodeoxygenation of lignocellulosic bio-oil over a carbon–neutral Mo2C/CNF catalyst

2021 ◽  
Vol 405 ◽  
pp. 126705
Author(s):  
Javier Remón ◽  
Marina Casales ◽  
Jesús Gracia ◽  
María S. Callén ◽  
José Luis Pinilla ◽  
...  
Keyword(s):  
Value Added ◽  
Sustainable Production ◽  
Platform Chemicals ◽  
Bio Oil ◽  
Carbon Neutral

scholarly journals Volarization of valuable compound from watermelon by-product using ultrasound-assisted extraction

Food Research ◽  
2020 ◽  
Vol 4 (6) ◽  
pp. 1995-2002
Author(s):  
W.Y.C. Lim ◽  
N.L. Yusof ◽  
Ismail-Fitry M.R. ◽  
N. Suleiman
Keyword(s):  
Citric Acid ◽  
Acid Content ◽  
Galacturonic Acid ◽  
Value Added ◽  
Extraction Process ◽  
Ultrasound Assisted Extraction ◽  
Pectin Content ◽  
Watermelon Rind ◽  
Assisted Extraction ◽  
Confectionery Products

The aim of this study was to develop an efficient, reliable, and sustainable technology for the recovery of value-added compounds from by-product, in this case, is watermelon rinds. The properties of the watermelon rinds obtained from innovative ultrasoundassisted extraction (UAE) were evaluated. In regard to this, the pectin content, degree of esterification, and galacturonic acid content of the watermelon rind extracts were determined in order to verify the efficiency of the UAE. Initially, the UAE were conducted using two types of acid: citric and hydrochloric. The highest pectin content was obtained using citric acid. Additional UAE was then performed with citric acid at 50, 60, or 70°C for 10, 20, or 30 mins. Both UAE temperature and time significantly influenced the pectin extracts and galacturonic acid. The best findings for a high galacturonic acid content (47.41%) when the watermelon rinds were extracts at 70°C for 20 mins. According to the findings, the extraction process lasted 10 or 20 mins at all temperatures was mainly high-methoxyl pectin, which can form gels under acidic conditions. This suggests that pectins derived from watermelon rinds using UAE may be especially useful as an additive in some confectionery products.

scholarly journals Atomically dispersed asymmetric Cu–B pair on 2D carbon nitride synergistically boosts the conversion of CO into C2 products

2020 ◽  
Vol 8 (2) ◽  
pp. 599-606 ◽  
Author(s):  
Tianwei He ◽  
Karsten Reuter ◽  
Aijun Du
Keyword(s):  
Carbon Monoxide ◽  
Visible Light ◽  
Carbon Nitride ◽  
Value Added ◽  
Dual Site

Asymmetric copper and boron dual-site synergy for boosting conversion of carbon monoxide into value-added C2 products under visible light.

Graphitic carbon nitride-based photocatalysts: Toward efficient organic transformation for value-added chemicals production

2020 ◽  
Vol 488 ◽  
pp. 110902 ◽  
Author(s):  
Anise Akhundi ◽  
Alireza Badiei ◽  
Ghodsi Mohammadi Ziarani ◽  
Aziz Habibi-Yangjeh ◽  
Mario J. Muñoz-Batista ◽  
...  
Keyword(s):  
Carbon Nitride ◽  
Value Added ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride

Unraveling Minimum Active Units and Substrate Activation for Carbon Nitride in Photocatalytic Oxidation Reactions

2020 ◽  
Author(s):  
Chaofeng Huang ◽  
Yaping Wen ◽  
Dandan Dong ◽  
Yanfei Shen ◽  
Songqin Liu ◽  
...  
Keyword(s):  
Photocatalytic Oxidation ◽  
Carbon Nitride ◽  
Value Added ◽  
Electronic Coupling ◽  
Oxidation Reactions ◽  
Active Structure ◽  
Substrate Activation ◽  
Condensed Form ◽  
Water Cleaning ◽  
Photocatalytic Reactions

<p>Covalent bonded carbon nitride (CN) has stimulated extensive attentions from photosynthesis to optoelectronics. However, the acquisition of correct numbers beyond stoichiometry and composition remains indefinable. Moreover, the electronic coupling by the substrates to the photoexcitation processes in value-added oxidation reactions is essential, but still poorly understood. Herein, we report by far the minimum active structure of CN by constructing fragments consisting of melem (M1) and its incomplete condensed form with cyanide termination (M2). Surprisingly, such configuration endowed a boosted activity of 11 times of traditional bulk CN in photocatalytic oxidation of tetracycline as a showcase application of water cleaning and sanitation. The mechanism studies disclosed that M1 and M2 were primarily responsible for light absorption and charge separation, respectively;<a></a><a> meanwhile the electronic coupling by the O<sub>2</sub> substrate participated the photoexcited processes thus synergistically enhanced the photocatalytic reactions.</a></p>

Artificial light-harvesting 2D photosynthetic system with iron phthalocyanine/graphitic carbon nitride composites for highly efficient CO2 reduction

2021 ◽  
Author(s):  
Yiping Mo ◽  
Chun Wang ◽  
Longfei Xiao ◽  
Wenxing Chen ◽  
Wangyang Lu
Keyword(s):  
Greenhouse Gas ◽  
Carbon Nitride ◽  
Light Harvesting ◽  
Co2 Reduction ◽  
Value Added ◽  
Graphitic Carbon Nitride ◽  
Artificial Light ◽  
Iron Phthalocyanine ◽  
Photosynthetic System ◽  
Promising Strategy

Photocatalytic conversion of CO2 into value-added chemicals is considered to be a promising strategy to capture greenhouse gas as well as produce energy. The exploration of efficient and stable photocatalysts...

Valorisation of Glycerol through Catalytic Hydrogenolysis Routes for Sustainable Production of Value-Added C3 Chemicals: Current and Future Trends

2021 ◽  
Author(s):  
Adrian Loy Chun Minh ◽  
Shanthi Priya Samudrala ◽  
Sankar Bhattacharya
Keyword(s):  
Fossil Fuels ◽  
Value Added ◽  
Sustainable Production ◽  
Future Trends ◽  
Renewable Feedstocks ◽  
Significant Interest ◽  
Catalytic Hydrogenolysis

The search of sustainable routes for the production of C3 chemicals from renewable feedstocks have attracted significant interest from academic and industrial communities to alleviate the dependence on fossil fuels....

Electrocatalytic water splitting with unprecedentedly low overpotentials by nickel sulfide nanowires stuffed into carbon nitride scabbards

2021 ◽  
Author(s):  
Zaki Zahran ◽  
Eman Mohamed ◽  
Yuta Tsubonouchi ◽  
Manabu Ishizaki ◽  
Takanari Togashi ◽  
...  
Keyword(s):  
Water Splitting ◽  
Carbon Nitride ◽  
Nickel Sulfide ◽  
Sustainable Production ◽  
Production Of Hydrogen ◽  
Carbon Neutral

Electrocatalytic water splitting to oxygen and hydrogen has much attention as one of the most promising approaches for sustainable production of hydrogen as a carbon-neutral fuel. To establish efficient electrocatalytic...

scholarly journals Microwave growth and tunable photoluminescence of nitrogen-doped graphene and carbon nitride quantum dots

2019 ◽  
Vol 7 (18) ◽  
pp. 5468-5476 ◽  
Author(s):  
Siyong Gu ◽  
Chien-Te Hsieh ◽  
Yasser Ashraf Gandomi ◽  
Jeng-Kuei Chang ◽  
Ju Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Citric Acid ◽  
Carbon Nitride ◽  
Solid Phase ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Nitrogen Doped ◽  
Microwave Assisted ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

Tunable photoluminescent nitrogen-doped graphene and graphitic carbon nitride (g-C3N4) quantum dots are synthesized via a facile solid-phase microwave-assisted (SPMA) technique utilizing the pyrolysis of citric acid and urea precursors.

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