@inproceedings{95e10ed060e14aa0a28515985aeccc0e,
title = "Structural characterization of AgGaS2-type photocatalysts for hydrogen production from water under visible light",
abstract = "Bulky AgGaS2 was synthesized as a p-type semiconductor photocatalyst by a conventional solid state reaction under N2 flow for hydrogen production under visible light. To remove the impurity phase involved in the synthesized material and improve its crystallinity, the material was treated at various temperatures of 873-1123 K under H2S flow. Impurity phases were identified as β-Ga2O3 and Ag9GaS6 with Rietveld analysis of XRD, and the local coordination structure around gallium atom in AgGaS2 was investigated by EXAFS. As the H2S-treatment temperature increased, the contribution from impurity phase was diminished. When the temperature reached 1123 K, the impurity phases were completely removed and the material showed the highest photocatalytic activity.",
keywords = "AgGaS, EXAFS, Impurity phase, p-type semiconductor photocatalyst",
author = "Choi, \{Sun Hee\} and Jang, \{Jum Suk\} and Namsoo Shin and Lee, \{Jae Sung\}",
year = "2007",
doi = "10.1063/1.2644613",
language = "English",
isbn = "0735403848",
series = "AIP Conference Proceedings",
pages = "628--630",
booktitle = "X-RAY ABSORPTION FINE STRUCTURE - XAFS13",
note = "X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference ; Conference date: 09-07-2006 Through 14-07-2006",
}