Solar Photocatalysis Applications to Antibiotic Degradation in Aquatic Systems

2019 ◽  
pp. 35-53
Author(s):  
Margarita Jiménez-Tototzintle ◽  
Enrico Mendes Saggioro
Keyword(s):  
Aquatic Systems ◽  
Solar Photocatalysis ◽  
Antibiotic Degradation

Solar photocatalysis mediated by ZnO for the removal of last traces of Indigo carmine dye pollutant from water

2018 ◽  
Vol 4 (02) ◽  
Author(s):  
Veena Vijayan ◽  
Suguna Yesodharan ◽  
E. P. Yesodharan
Keyword(s):  
Indigo Carmine ◽  
Parent Compound ◽  
Oxygen Demand ◽  
Green Technology ◽  
Solar Photocatalysis ◽  
Reaction Proceeds ◽  
Transient Intermediates ◽  
Significant Chemical ◽  
Hydroxyl Free Radicals ◽  
Purification Of Water

Solar photocatalysis as a potential green technology for the removal of traces of the dye pollutant Indigo carmine (IC) from water is investigated using ZnO as the catalyst. Degradation/decolorization alone does not result in complete decontamination as seen from the significant Chemical Oxygen Demand (COD) of water even after the parent compound has disappeared completely. The degradation proceeds through many intermediates which also get mineralized eventually but slowly. Oxalic acid is identified as a stable slow mineralizing degradation product which itself is formed from other transient intermediates. Effect of various parameters such as catalyst dosage, concentration of the dye, pH, temperature, presence of contaminant salts etc. on the degradation is investigated and quantified. Oxidants such as S2O82- and H2O2 have only moderate influence on the degradation. The degradation follows variable kinetics depending on the concentration of the substrate. The reaction proceeds very slowly in the absence of O2 indicating the importance of reactive oxygen species and hydroxyl free radicals in photocatalysis. H2O2 formed insitu in the system undergoes concurrent decomposition resulting in stabilization in its concentration. The study demonstrates that solar photocatalysis can be used as a viable tool for the purification of water contaminated with traces of IC.

Fate of Colloidal-Particulate Elemental Selenium in Aquatic Systems

2004 ◽  
Vol 33 (2) ◽  
pp. 559 ◽  
Author(s):  
Yiqiang Zhang ◽  
Zahir A. Zahir ◽  
William T. Frankenberger
Keyword(s):  
Aquatic Systems ◽  
Elemental Selenium

CHARACTERIZATION AND QUANTIFICATION OF DISSOLVED ORGANIC PHOSPHORUS IN AQUATIC SYSTEMS

2016 ◽  
Author(s):  
Kelly M. McCabe ◽  
◽  
Doug Bell ◽  
Claudia Benitez-Nelson
Keyword(s):  
Organic Phosphorus ◽  
Aquatic Systems ◽  
Dissolved Organic Phosphorus

The waterscape at high altitudes

2017 ◽  
Author(s):  
Dean Jacobsen ◽  
Olivier Dangles
Keyword(s):  
High Altitude ◽  
Regional Climate ◽  
Water Source ◽  
Aquatic Systems ◽  
Running Waters ◽  
High Altitudes ◽  
Different Types ◽  
Geological Origin ◽  
Broad Variety ◽  
The Tropics

Chapter 2 presents the amazing variety of running waters, lakes, ponds, and wetlands found at high altitudes. These waterbodies are not equally distributed among the world’s high altitude places, but tend to be concentrated in certain areas, primarily determined by regional climate and topography. Thus, a large proportion of the world’s truly high altitude aquatic systems are found at lower latitudes, mostly in the tropics. The chapter presents general patterns in the geographical distribution of high altitude waters, and gives examples of some of the most extreme systems. High altitude aquatic systems and habitats cover a broad variety in dynamics and physical appearance. These differences may be related to, for example, water source (glacier-fed, rain-fed, or groundwater-fed streams), geological origin (e.g. glacial, volcanic, or tectonic lakes), or catchment slope and altitude (different types of peatland wetlands). This is exemplified and richly illustrated through numerous photos.

scholarly journals WO3/p-Type-GR Layered Materials for Promoted Photocatalytic Antibiotic Degradation and Device for Mechanism Insight

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Wenfeng Zhao ◽  
Xiaowei Wang ◽  
Lizhe Ma ◽  
Xuanbo Wang ◽  
Weibin Wu ◽  
...  
Keyword(s):  
Layered Materials ◽  
P Type ◽  
Antibiotic Degradation

Development of a new analytical approach based on cellulose membrane and chelator for differentiation of labile and inert metal species in aquatic systems

2006 ◽  
Vol 567 (2) ◽  
pp. 152-159 ◽  
Author(s):  
André Henrique Rosa ◽  
Iramaia C. Bellin ◽  
Danielle Goveia ◽  
Luciana C. Oliveira ◽  
Roberto W. Lourenço ◽  
...  
Keyword(s):  
Analytical Approach ◽  
Aquatic Systems ◽  
Metal Species ◽  
Cellulose Membrane

Coating ligands mediated dynamic formation of natural organic matter (NOM) corona on engineered nanoparticles in environments

2021 ◽  
Author(s):  
Chuan-Wang Yang ◽  
Li Yuan ◽  
Hong-Zhi Zhou ◽  
Xin Zhang ◽  
Guo-Ping Sheng
Keyword(s):  
Organic Matter ◽  
Natural Organic Matter ◽  
Engineered Nanoparticles ◽  
Aquatic Systems ◽  
Solution Interface ◽  
Dynamic Formation

Natural organic matter (NOM) can adsorb onto engineered nanoparticles (ENPs) and form NOM-corona on ENPs-solution interface, thus affecting the performance and ecotoxicity of ENPs in aquatic systems. Nevertheless, the formation...

scholarly journals Early warning signals of regime shifts for aquatic systems: Can experiments help to bridge the gap between theory and real-world application?

2021 ◽  
Vol 47 ◽  
pp. 100944
Author(s):  
Julio Alberto Alegre Stelzer ◽  
Jorrit Padric Mesman ◽  
Rita Adrian ◽  
Bastiaan Willem Ibelings
Keyword(s):  
Early Warning ◽  
Real World ◽  
Regime Shifts ◽  
Aquatic Systems ◽  
Warning Signals ◽  
Early Warning Signals ◽  
Real World Application

Ultra‐Fast Microwave Synthesis of WO 3 Nanostructured Films for Solar Photocatalysis

2021 ◽  
Author(s):  
Daniela Nunes ◽  
Ana Rita Fragoso ◽  
Tomas Freire ◽  
Mariana Matias ◽  
Ana Carolina Marques ◽  
...  
Keyword(s):  
Microwave Synthesis ◽  
Nanostructured Films ◽  
Solar Photocatalysis
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