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Title: Catalytic Photodegradation of p-aminobenzoic Acid on TiO 2 Nanowires with High Surface Area.

Pharmaceutical personal care products (PPCP’s) production and consumption have increased exponentially in recent years due to medicine and technology advances related to the development of dangerous skin diseases such as cancer. These PPCP’s usually are found in wastewaters and their removal represents a very important environmental issue. With the aim of studying the possible degradation of these compounds, we have synthesized TiO 2 nanowires (rutile phase) that have been fully characterized by BET measurements, XRD and SEM and used in the photodegradation reaction of p-aminobenzoic acid (PABA). Furthermore, we studied the photocatalytic degradation of PABA under different experimental conditions (i.e. catalyst loading). The photocatalytic reaction was monitored as a function of time by UV-Vis spectroscopy. The highest degradation rate occurred with 1.0 g L-1 of catalyst while the reaction does not proceed without radiation or in absence of the catalyst. Our present work demonstrates that p-aminobenzoic acid could be successfully degraded in a relatively short time period with high degradation percentages.
Authors:
 [1] ;  [1] ;  [1]
  1. Univ. of Turabo, Gurabo (Puerto Rico). School of Science and Technology
Publication Date:
Grant/Contract Number:
NA0000672
Type:
Accepted Manuscript
Journal Name:
Ambientis (Online)
Additional Journal Information:
Journal Name: Ambientis (Online); Journal Volume: 1; Journal ID: ISSN 2164-6759
Publisher:
Universidad del Turabo
Research Org:
Univ. of Turabo, Gurabo (Puerto Rico)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; p-aminobenzoic acid; UV-Vis spectroscopy; photocatalysis; TiO2
OSTI Identifier:
1335899

Soto, Loraine, Rodríguez, Tracey, and Márquez, Francisco. Catalytic Photodegradation of p-aminobenzoic Acid on TiO2 Nanowires with High Surface Area.. United States: N. p., Web.
Soto, Loraine, Rodríguez, Tracey, & Márquez, Francisco. Catalytic Photodegradation of p-aminobenzoic Acid on TiO2 Nanowires with High Surface Area.. United States.
Soto, Loraine, Rodríguez, Tracey, and Márquez, Francisco. 2014. "Catalytic Photodegradation of p-aminobenzoic Acid on TiO2 Nanowires with High Surface Area.". United States. doi:. https://www.osti.gov/servlets/purl/1335899.
@article{osti_1335899,
title = {Catalytic Photodegradation of p-aminobenzoic Acid on TiO2 Nanowires with High Surface Area.},
author = {Soto, Loraine and Rodríguez, Tracey and Márquez, Francisco},
abstractNote = {Pharmaceutical personal care products (PPCP’s) production and consumption have increased exponentially in recent years due to medicine and technology advances related to the development of dangerous skin diseases such as cancer. These PPCP’s usually are found in wastewaters and their removal represents a very important environmental issue. With the aim of studying the possible degradation of these compounds, we have synthesized TiO2 nanowires (rutile phase) that have been fully characterized by BET measurements, XRD and SEM and used in the photodegradation reaction of p-aminobenzoic acid (PABA). Furthermore, we studied the photocatalytic degradation of PABA under different experimental conditions (i.e. catalyst loading). The photocatalytic reaction was monitored as a function of time by UV-Vis spectroscopy. The highest degradation rate occurred with 1.0 g L-1 of catalyst while the reaction does not proceed without radiation or in absence of the catalyst. Our present work demonstrates that p-aminobenzoic acid could be successfully degraded in a relatively short time period with high degradation percentages.},
doi = {},
journal = {Ambientis (Online)},
number = ,
volume = 1,
place = {United States},
year = {2014},
month = {6}
}