Results 51 to 60 of about 12,750 (213)

Decolorization of Disperse Dyes in Textile Polyester Recycling Using Activated Carbon

Chemie Ingenieur Technik, EarlyView.
Decolorization of disperse dyes from disodium terephthalate solutions is examined using two activated carbons with varying pore structures and surface properties. The potential impact of pore size distribution and surface charge on the adsorption process is assessed to support optimized adsorbent selection.
Charlotte Lücking, Mandy Paschetag, Stephan Scholl   +2 more
wiley   +1 more source

Decolorization of Ponceau Red 4R with TiO2/ZnO: Effect of calcination temperature and Fe addition

Environmental Progress &Sustainable Energy, EarlyView.
Abstract The photocatalytic degradation of azo dyes using semiconductor oxides has emerged as a promising strategy for wastewater remediation. In this study, pure, mixed, and Fe‐doped oxide catalysts based on Zinc Oxide and Titanium Dioxide were synthesized and evaluated for the degradation of Ponceau 4R under ultraviolet irradiation.
Stefani Castilhos, Fernado Manzotti de Souza, Giane Gonçalves Lenzi, Angelo Marcelo Tusset, Luiz Mario de M. Jorge, Onelia Aparecida Andreo dos Santos   +5 more
wiley   +1 more source

Green methodology to synthesis heterocyclic diazo dyes using superacid Aquivion® PFSA PW98 as an efficient catalyst

Current Research in Green and Sustainable Chemistry
A heterocyclic diazo dye containing the coumarin structure, specifically 7-hydroxy-4-methyl-8-(4-nitrophenyl azo)-6-(4-nitrophenyl azo) coumarin, was prepared using Aquivion PFSA resin.
Fadia Al-Haj Hussien
doaj   +1 more source

An Improved Method for Removal of Azo Dye Orange II from Textile Effluent Using Albumin as Sorbent

Molecules, 2012
Azo dyes are generally resistant to biodegradation due to their complex structures. Acid orange II is one of the most widely used dyes in the textile industry.
Tadashi Ohashi, Alícia M. T. Jara, Anabelle C. L. Batista, Luciana O. Franco, Marcos A. Barbosa Lima, Mohand Benachour, Carlos A. Alves da Silva, Galba M. Campos-Takaki   +7 more
doaj   +1 more source

Integrating anaerobic and photochemical processes: UV–vis‐driven post‐treatment for micropollutant abatement and toxicity control in UASB secondary effluent

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND Upflow anaerobic sludge blanket (UASB) reactors are widely used in low‐ and middle‐income countries, but secondary effluents may still contain organic micropollutants and residual toxicity. This study evaluated UV–Vis photolysis and UV/H2O2 as post‐treatment options for UASB secondary effluent (SE), integrating micropollutant ...
Fernando Rodrigues‐Silva, Gabriella P Masceno, Paloma P Panicio, Magno Lange Albuquerque, Rafaela Imoski, Wanessa A Ramsdorf, Liziê DT Prola, Maria Clara VM Starling, Camila C Amorim, Fernando H Passig, Marcus V Liz   +10 more
wiley   +1 more source

Spectral Studies of UV and Solar Photocatalytic Degradation of AZO Dye and Textile Dye Effluents Using Green Synthesized Silver Nanoparticles

Bioinorganic Chemistry and Applications, 2016
The photocatalytic degradation of the chemical dye AZO and dye effluents in different time duration has been investigated using biologically synthesized silver nanoparticles.
R. Mariselvam, A. J. A. Ranjitsingh, P. Mosae Selvakumar, Abdullah A. Alarfaj, Murugan A. Munusamy   +4 more
doaj   +1 more source

Decolorization of Orange-G Aqueous Solutions over C₆₀/MCM-41 Photocatalysts

Applied Sciences, 2019
The majority of the photocatalysts studied for azo-dye degradation are based on semiconductor materials. Studies reported on non-semiconducting materials are very scarce.
John Kyriakopoulos, Eleana Kordouli, Kyriakos Bourikas, Christos Kordulis, Alexis Lycourghiotis   +4 more
doaj   +1 more source

Leveraging Isomerization of Azo Dyes and Imines for the Facile Synthesis of Oxadiazepines and Related Heterocycles

Journal of Heterocyclic Chemistry, EarlyView.
A robust method for synthesizing substituted oxadiazepines and related heterocycles via intramolecular SNAr is detailed. Under mild conditions, this methodology has been leveraged to afford products of varying electronic and aryl nature in up to 99% yields.
Matthew W. Reeves, Christian A. Guzman, Herbi Yuliantoro, Peng Li, Elizabeth R. Young   +4 more
wiley   +1 more source

Influence of microwave irradiation on hypochlorite decolorisation of synthetic dyes

Zaštita Materijala, 2016
In this study three synthetic dyes were treated using hypochlorite or combination of hypochlorite and microwave irradiation in order to investigate factors which determine decolorisation of the investigated compounds. An azo dye (C.I. Reactive Orange 16 -
Dušan Ž. Mijin, Dunja M. Dabić, Jelena M. Mirković, Bojan Đ. Božić, Branimir N. Grgur   +4 more
doaj   +1 more source

Fluorenone and Fluorenemalononitrile‐Tethered Conjugated Microporous Polymers for Efficient CO2 Uptake and Rhodamine B Removal

Macromolecular Rapid Communications, EarlyView.
TPET‐F2CN CMP exhibited higher CO2 uptake (2.88 mmol g−1 at 273 K) and superior Rhd B adsorption, with an equilibrium capacity of 98.12 mg g−1 and a maximum monolayer capacity of 155.6 mg g−1. ABSTRACT Herein, two conjugated microporous polymers (CMPs), TPET‐FO and TPET‐F2CN, are functionalized with carbonyl and nitrile groups.
Mohamed Gamal Mohamed, Ahmed M. Elewa, Nian‐Ping Chen, Ahmed F. Saber, Hira Karim, Yun‐Sheng Ye, Mohsin Ejaz, Cheng‐Wei Huang, Shiao‐Wei Kuo   +8 more
wiley   +1 more source