Green removal of aromatic organic pollutants from aqueous solutions with a zeolite–hemp composite

RSC Advances ◽  
2012 ◽  
Vol 2 (7) ◽  
pp. 3115 ◽  
Author(s):  
Xiaoqin Zou ◽  
Jaâfar El Fallah ◽  
Jean-Michel Goupil ◽  
Guangshan Zhu ◽  
Valentin Valtchev ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Organic Pollutants

Adsorption of Organic Pollutants from Aqueous Solutions on Cereal Ashes

2008 ◽  
Vol 53 (11) ◽  
pp. 2707-2709 ◽  
Author(s):  
M. Ghiaci ◽  
M. Arshadi ◽  
M. E. Sedaghat ◽  
R. J. Kalbasi ◽  
A. Gil
Keyword(s):  
Aqueous Solutions ◽  
Organic Pollutants

A methylation-inspired mesoporous coordination polymer for identification and removal of organic pollutants in aqueous solutions

2021 ◽  
Author(s):  
Zhonghui Chen ◽  
Ziyu Lv ◽  
Zirong Lin ◽  
Jun Chen ◽  
Yifang Zhang ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Aqueous Solutions ◽  
Organic Pollutants ◽  
Interfacial Chemistry ◽  
Structure Enhancement

Tuning the interfacial chemistry of a metal–biomolecule coordination hybrid via bio-inspired methylation for structure enhancement and selective hazard adsorption/identification.

scholarly journals Polyoxometallates as effective photocatalysts in water purification from pesticides

2004 ◽  
Vol 6 (4) ◽  
pp. 227-231 ◽  
Author(s):  
E. Gkika ◽  
P. Kormali ◽  
S. Antonaraki ◽  
D. Dimoticali ◽  
E. Papaconstantinou ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Metal Oxide ◽  
Aqueous Solutions ◽  
Organic Pollutants ◽  
Water Purification ◽  
Inorganic Anions ◽  
Degradation Mechanisms ◽  
Metal Oxide Clusters

Polyoxometallates (POM), i.e., metal oxide clusters of mainly tungsten are effective homogeneous photocatalysts for the mineralization of organic pollutants. POM are, at least, as effective as the well studiedTiO2.OH⋅radicals formed by the reaction of the photo-excited polyoxometallates withH2O, appear to play a key role in the process. In this study, the photocatalytic activity of POM have been tested on some diversified pesticides of interest such as lindane, bentazone and fenitrothion to determine the feasibility of decontamination of aqueous solutions from these pollutants. The results show that aqueous solutions containing the above pesticides, upon photolysis in the presence of polyoxotungstates undergo effective degradation toCO2,H2Oand the corresponding inorganic anions. The intermediates identified give rise to complicated degradation mechanisms prior to mineralization. The characteristic reactions that take place consist of hydroxylation, H-abstraction, dehalogenation, denitration, desulfurization, breaking of the C-C bond etc.

Alginate-based hydrogels modified with olive pomace and lignin to removal organic pollutants from aqueous solutions

2020 ◽  
Vol 153 ◽  
pp. 883-891 ◽  
Author(s):  
Francisco Flores-Céspedes ◽  
Matilde Villafranca-Sánchez ◽  
Manuel Fernández-Pérez
Keyword(s):  
Aqueous Solutions ◽  
Organic Pollutants ◽  
Olive Pomace

Degradation of Sodium Dodecyl Benzene Sulfonate by Bentonite, TiO2, and TiO2-Bentonite

2013 ◽  
Vol 743-744 ◽  
pp. 823-830
Author(s):  
Shu Yao Wen ◽  
Zhan Qing Ma ◽  
Min Li Ma ◽  
Su Yun Chen ◽  
Li Li ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Titanium Oxide ◽  
Ultraviolet Light ◽  
Organic Pollutants ◽  
Sodium Dodecyl ◽  
Sodium Dodecyl Benzene Sulfonate ◽  
Titanium Content ◽  
Benzene Sulfonate ◽  
Dodecyl Benzene Sulfonate

The photodegradation of organic pollutants by TiO2 has previously been shown to be efficient, but the TiO2 particles are typically so fine that they are easily washed away. This problem was solved by forming a complex between TiO2 and bentonite. Four different photodegradation conditions (i.e., no catalyst, addition of 3 bentonite, addition of 1 TiO2, and addition of 3 TiO2-bentonite) were investigated for their degradation efficiencies of 20 mg/l sodium dodecyl benzene sulfonate (SDBS) under ultraviolet light for 6 h. The titanium content of 1 titanium oxide was equal to that of the 3 Ti-bentonite. The results showed that, under the four above conditions, 36.7%, 25.9%, 96.7%, and 99.3%, respectively, of SDBS were degraded in the aqueous solutions. The latter two conditions degraded SDBS more efficiently than the former two conditions. The TiO2-bentonite complex possessed more advantages than TiO2 or bentonite alone, making the bentonite an appropriate carrier for TiO2.

Sign in / Sign up

Export Citation Format

Share Document