XAS study of AsO43− and SeO42− substituted schwertmannites
作者： G.A. Waychunas , Ning Xu , C.C. Fuller , J.A. Davis , J.M. Bigham
DOI: 10.1016/0921-4526(94)00730-J
关键词: Chemistry 、 Schwertmannite 、 Crystal structure 、 Crystallite 、 X-ray absorption spectroscopy 、 Selenate 、 Arsenate 、 Crystallography 、 Extended X-ray absorption fine structure 、 Sulfate
摘要: Abstract Synthetic schwertmannite samples with varying amounts of arsenate and selenate substituting for sulfate were examined by XAS methods in an attempt to characterize the location anion complexes. Selenate appears both substitute directly within tunnels structure, sorb onto outside crystallites. No disruption basic structure substitution. However, mainly crystallites, destabilizing poisoning growth.
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