Photocatalytic Reduction of Hexavalent Chromium Ions from Aqueous Solutions Using Polymeric Microfibers Surface Modified with ZnO Nanoparticles

2021 ◽  
Author(s):  
Graciela Morales ◽  
Andrés Castro-Ruiz ◽  
Heriberto Rodríguez-Tobías ◽  
Gustavo A. Abraham ◽  
Guadalupe Rivero ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Hexavalent Chromium ◽  
Zno Nanoparticles ◽  
Photocatalytic Reduction ◽  
Chromium Ions ◽  
Surface Modified

Efficient and stable photocatalytic reduction of aqueous hexavalent chromium ions by polyaniline surface-hybridized ZnO nanosheets

2019 ◽  
Vol 279 ◽  
pp. 133-145 ◽  
Author(s):  
Chongzhuo Bao ◽  
Mingxin Chen ◽  
Xin Jin ◽  
Dongwen Hu ◽  
Qiang Huang
Keyword(s):  
Hexavalent Chromium ◽  
Photocatalytic Reduction ◽  
Chromium Ions ◽  
Zno Nanosheets

Elaboration of novel polyaniline@Almond shell biocomposite for effective removal of hexavalent chromium ions and Orange G dye from aqueous solutions

2020 ◽  
Vol 27 (13) ◽  
pp. 15245-15258 ◽  
Author(s):  
Abdelghani Hsini ◽  
Abdelilah Essekri ◽  
Nouh Aarab ◽  
Mohamed Laabd ◽  
Abdelaziz Ait Addi ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Hexavalent Chromium ◽  
Almond Shell ◽  
Chromium Ions ◽  
Effective Removal ◽  
Orange G

Synthesis and Characterization of γ-Fe2O3/Carbon Hybrids and Their Application in Removal of Hexavalent Chromium Ions from Aqueous Solutions

Langmuir ◽  
2012 ◽  
Vol 28 (8) ◽  
pp. 3918-3930 ◽  
Author(s):  
Maria Baikousi ◽  
Athanassios B. Bourlinos ◽  
Alexios Douvalis ◽  
Thomas Bakas ◽  
Dimitrios F. Anagnostopoulos ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Hexavalent Chromium ◽  
Synthesis And Characterization ◽  
Chromium Ions

Introduction of α-MnO2nanosheets to NH2graphene to remove Cr6+from aqueous solutions

RSC Advances ◽  
2015 ◽  
Vol 5 (55) ◽  
pp. 44096-44106 ◽  
Author(s):  
Li Zhang ◽  
Yaxi Tian ◽  
Yaopeng Guo ◽  
Hui Gao ◽  
Haizhen Li ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Hexavalent Chromium ◽  
Planar Structure ◽  
Chromium Ions

The planar structure of the designed α-MnO2–NH2–RGO hybrid was prepared and characterized and used to remove hexavalent chromium ions (Cr6+) from aqueous solutions.

Application of dolochar in the removal of cadmium and hexavalent chromium ions from aqueous solutions

2011 ◽  
Vol 192 (2) ◽  
pp. 822-831 ◽  
Author(s):  
L. Panda ◽  
B. Das ◽  
D.S. Rao ◽  
B.K. Mishra
Keyword(s):  
Aqueous Solutions ◽  
Hexavalent Chromium ◽  
Chromium Ions

scholarly journals Hexavalent Chromium Uptake from Aqueous Solutions using Raw Biomass of the Invasive Brown Seaweed Sargassum muticum from the Moroccan Shorelines: Kinetics and Isotherms

2016 ◽  
Vol 12 (30) ◽  
pp. 243
Author(s):  
Samir El Atouani ◽  
Soufiane Tahiri ◽  
Abdeltif Reani ◽  
Fouad Bentiss ◽  
Mohammed El Krati ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Hexavalent Chromium ◽  
Atlantic Coast ◽  
Brown Seaweed ◽  
Sargassum Muticum ◽  
Maximum Sorption Capacity ◽  
Chromium Ions ◽  
Biosorption Process ◽  
Isotherm Equations ◽  
Kinetics And Isotherms

Raw biomass of the invasive Japanese brown seaweed Sargassum muticum, recently introduced to the Atlantic coast of Morocco, has been applied for the removal of hexavalent chromium Cr(VI) from aqueous solutions. Various parameters such as biomass dose, initial pH, contact time and initial Cr(VI) concentration were studied to reveal their effects on the biosorption process. At optimum values of the above mentioned parameters, total removal of Cr(VI) can be achieved within 10 min at pH 2, adsorbent dose of 0.5 g/100 mL for initial chromium ions concentration of 50 mg/L. Cr(VI) biosorption follows pseudo second-order kinetics. Adsorption isotherms were determined at room temperature and the experimental data were modelled with the Langmuir, Freundlich and Temkin isotherm equations. The isotherm data were found to be well fitted by linear Langmuir equation. The maximum sorption capacity calculated from Langmuir isotherm was estimated to be about 143 mg per gram of dry biosorbent. Thus, the biomass used in this study can be considered a promising and valuable natural adsorbent for the treatment of aqueous solution containing toxic hexavalent chromium ions.

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