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Title: Batch slurry photocatalytic reactors for the generation of hydrogen from sulfide and sulfite waste streams under solar irradiation

Abstract

In this study, two solar slurry photocatalytic reactors i.e., batch reactor (BR) and batch recycle reactor with continuous supply of inert gas (BRRwCG) were developed for comparing their performance. The performance of the photocatalytic reactors were evaluated based on the generation of hydrogen (H{sub 2}) from water containing sodium sulfide (Na{sub 2}S) and sodium sulfite (Na{sub 2}SO{sub 3}) ions. The photoreactor of capacity 300 mL was developed with UV-vis transparent walls. The catalytic powders ((CdS/ZnS)/Ag{sub 2}S + (RuO{sub 2}/TiO{sub 2})) were kept suspended by means of magnetic stirrer in the BR and gas bubbling and recycling of the suspension in the BRRwCG. The rate constant was found to be 120.86 (einstein{sup -1}) for the BRRwCG whereas, for the BR it was found to be only 10.92 (einstein{sup -1}). The higher rate constant was due to the fast desorption of products and suppression of e{sup -}/h{sup +} recombination. (author)

Authors:
;  [1]
  1. Centre for Environmental Studies, Anna University, Chennai (India)
Publication Date:
OSTI Identifier:
21227414
Resource Type:
Journal Article
Journal Name:
Solar Energy
Additional Journal Information:
Journal Volume: 83; Journal Issue: 10; Other Information: Elsevier Ltd. All rights reserved; Journal ID: ISSN 0038-092X
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; 14 SOLAR ENERGY; CADMIUM SULFIDES; HYDROGEN SULFIDES; SILVER SULFIDES; SODIUM SULFIDES; ZINC SULFIDES; HYDROGEN PRODUCTION; SODIUM COMPOUNDS; SULFITES; SLURRIES; PHOTOCATALYSIS; REACTION KINETICS; RUTHENIUM OXIDES; TITANIUM OXIDES; AQUEOUS SOLUTIONS; DESORPTION; SOLAR RADIATION; PERFORMANCE; COMPARATIVE EVALUATIONS; POWDERS; CHEMICAL REACTORS; Photoreactors

Citation Formats

Priya, R, and Kanmani, S. Batch slurry photocatalytic reactors for the generation of hydrogen from sulfide and sulfite waste streams under solar irradiation. United States: N. p., 2009. Web. doi:10.1016/J.SOLENER.2009.06.012.
Priya, R, & Kanmani, S. Batch slurry photocatalytic reactors for the generation of hydrogen from sulfide and sulfite waste streams under solar irradiation. United States. https://doi.org/10.1016/J.SOLENER.2009.06.012
Priya, R, and Kanmani, S. 2009. "Batch slurry photocatalytic reactors for the generation of hydrogen from sulfide and sulfite waste streams under solar irradiation". United States. https://doi.org/10.1016/J.SOLENER.2009.06.012.
@article{osti_21227414,
title = {Batch slurry photocatalytic reactors for the generation of hydrogen from sulfide and sulfite waste streams under solar irradiation},
author = {Priya, R and Kanmani, S},
abstractNote = {In this study, two solar slurry photocatalytic reactors i.e., batch reactor (BR) and batch recycle reactor with continuous supply of inert gas (BRRwCG) were developed for comparing their performance. The performance of the photocatalytic reactors were evaluated based on the generation of hydrogen (H{sub 2}) from water containing sodium sulfide (Na{sub 2}S) and sodium sulfite (Na{sub 2}SO{sub 3}) ions. The photoreactor of capacity 300 mL was developed with UV-vis transparent walls. The catalytic powders ((CdS/ZnS)/Ag{sub 2}S + (RuO{sub 2}/TiO{sub 2})) were kept suspended by means of magnetic stirrer in the BR and gas bubbling and recycling of the suspension in the BRRwCG. The rate constant was found to be 120.86 (einstein{sup -1}) for the BRRwCG whereas, for the BR it was found to be only 10.92 (einstein{sup -1}). The higher rate constant was due to the fast desorption of products and suppression of e{sup -}/h{sup +} recombination. (author)},
doi = {10.1016/J.SOLENER.2009.06.012},
url = {https://www.osti.gov/biblio/21227414}, journal = {Solar Energy},
issn = {0038-092X},
number = 10,
volume = 83,
place = {United States},
year = {Thu Oct 15 00:00:00 EDT 2009},
month = {Thu Oct 15 00:00:00 EDT 2009}
}