Ag decorated CoO NPs supported on chitosan matrix for colorimetric detection of L-cysteine, antibacterial application and photocatalytic reduction of hexavalent chromium ions

2022 ◽  
pp. 128318
Author(s):  
Mohammad K. Okla ◽  
S. Kokilavani ◽  
Asmaa Mohebaldin ◽  
Ajith M. Thomas ◽  
Walid Soufan ◽  
...  
Keyword(s):  
Hexavalent Chromium ◽  
Colorimetric Detection ◽  
Photocatalytic Reduction ◽  
Chromium Ions ◽  
Chitosan Matrix

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

scholarly journals A theoretical and experimental study of the adsorptive removal of hexavalent chromium ions using graphene oxide as an adsorbent

2020 ◽  
Vol 18 (1) ◽  
pp. 936-942
Author(s):  
Ardhmeri Alija ◽  
Drinisa Gashi ◽  
Rilinda Plakaj ◽  
Admir Omaj ◽  
Veprim Thaçi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hexavalent Chromium ◽  
Adsorption Energy ◽  
Density Functional ◽  
Noncovalent Interactions ◽  
Theoretical Calculations ◽  
Chemical Oxidation ◽  
Chromium Ions ◽  
Adsorption Sites ◽  
Vis Spectroscopy

AbstractThis study is focused on the adsorption of hexavalent chromium ions Cr(vi) using graphene oxide (GO). The GO was prepared by chemical oxidation (Hummers method) of graphite particles. The synthesized GO adsorbent was characterized by Fourier transform infrared spectroscopy and UV-Vis spectroscopy. It was used for the adsorption of Cr(vi) ions. The theoretical calculations based on density functional theory and Monte Carlo calculations were used to explore the preferable adsorption site, interaction type, and adsorption energy of GO toward the Cr(vi) ions. Moreover, the most stable adsorption sites were used to calculate and plot noncovalent interactions. The obtained results are important as they give molecular insights regarding the nature of the interaction between GO surface and the adsorbent Cr(vi) ions. The found adsorption energy of −143.80 kcal/mol is indicative of the high adsorptive tendency of this material. The adsorption capacity value of GO toward these ions is q = 240.361 mg/g.

Zr-Based MOFs as new photocatalysts for the rapid reduction of Cr(vi) in water

2020 ◽  
Vol 44 (17) ◽  
pp. 7218-7225 ◽  
Author(s):  
Haimei Xie ◽  
Duomou Ma ◽  
Wanyan Liu ◽  
Qian Chen ◽  
Yong Zhang ◽  
...  
Keyword(s):  
Hexavalent Chromium ◽  
Photocatalytic Reduction ◽  
Rapid Reduction

The hydroxyl modified Zr-based MOFs is used for photocatalytic reduction of hexavalent chromium existing in wastewater.

scholarly journals Preparation of Silk Sericin/Lignin Blend Beads for the Removal of Hexavalent Chromium Ions

2016 ◽  
Vol 17 (9) ◽  
pp. 1466 ◽  
Author(s):  
Hyo Kwak ◽  
Munju Shin ◽  
Haesung Yun ◽  
Ki Lee
Keyword(s):  
Hexavalent Chromium ◽  
Silk Sericin ◽  
Chromium Ions

Photocatalytic reduction behavior of hexavalent chromium on hydroxyl modified titanium dioxide

2017 ◽  
Vol 206 ◽  
pp. 293-299 ◽  
Author(s):  
Yali Li ◽  
Yingying Bian ◽  
Hongxia Qin ◽  
Yaxi Zhang ◽  
Zhenfeng Bian
Keyword(s):  
Titanium Dioxide ◽  
Hexavalent Chromium ◽  
Photocatalytic Reduction ◽  
Reduction Behavior
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