Applications of synchrotron-based X-ray techniques in environmental science

Luo, Lei; Zhang, Shuzhen

doi:10.1007/s11426-010-4085-x

Cited by 13 publications

(5 citation statements)

References 80 publications

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“…Cadmium accumulated at the tips of serrations in leaves and the phelloderm under the stem surface was measured by m-SRXRF. Straczek et al 245 measured differences in uranium root to shoot translocation of four plant species differing in their cation exchange capacity of roots following hydroponic exposure for seven days to100 mmol L À1 U. Luo and Zhang 246 recognised that synchrotron-based XRF techniques would play a significant role in the understanding of geo and bio-chemical processes as they provided a combination of spectral and spatial resolution for studies into reaction mechanisms for various environmental processes. Banuelos et al 247 used m-XRF and XANES to map the accumulation, distribution and speciation of selenium in spineless prickly pear cactus, to assist in the understanding of the health benefits of this fruit.…”

Section: Environmental Forensicsmentioning

confidence: 99%

Atomic spectrometry update-X-ray fluorescence spectrometry

West

Ellis

Potts

et al. 2011

J. Anal. At. Spectrom.

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Section: Environmental Forensicsmentioning

confidence: 99%

Atomic spectrometry update-X-ray fluorescence spectrometry

West

Ellis

Potts

et al. 2011

J. Anal. At. Spectrom.

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“…To this end, we investigated simultaneously the speciation evolution of Cu, C, P, and S in swine manures during pyrolysis using multiple spectroscopic techniques including Cu K -edge X-ray absorption near-edge structure (XANES) spectroscopy and extended X-ray absorption fine structure (EXAFS) spectroscopy, P and S K -edge XANES spectroscopy and infrared spectroscopy. These spectroscopies are the best available techniques for in situ determination of elemental speciation in complex environmental matrices such as swine manures . Results from this work are expected to be capable of providing clues for understanding the speciation transformation of Cu in swine manures induced by pyrolysis and thus address the gap between speciation transformation and immobilization of Cu in the pyrolyzed biochars.…”

Section: Introductionmentioning

confidence: 96%

“…These spectroscopies are the best available techniques for in situ determination of elemental speciation in complex environmental matrices such as swine manures. 25 Results from this work are expected to be capable of providing clues for understanding the speciation transformation of Cu in swine manures induced by pyrolysis and thus address the gap between speciation transformation and immobilization of Cu in the pyrolyzed biochars.…”

Section: ■ Introductionmentioning

confidence: 97%

Copper Speciation Evolution in Swine Manure Induced by Pyrolysis

Yuan

Luo

et al. 2020

Environ. Sci. Technol.

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Swine manures generally contain high levels of copper (Cu) resulting from its use as a growth promoter in feedstuff. Pyrolysis can further concentrate Cu whereas decrease its available fraction in swine manures. Here we investigated the speciation transformation of Cu and associated elements in swine manures induced by pyrolysis using multiple X-ray absorption spectroscopies. Results showed that over 82% of Cu existed as Cu(I)−S and Cu(I)−thiolate complexes in swine manures, which were transformed into stable Cu(I) 2 S during pyrolysis at a low temperature of 300 °C and partially oxidized and desulfurized into Cu(II) compounds at a high temperature of 500 °C. The speciation evolution of Cu in swine manures was consistent with the speciation distribution of sulfur in feedstuff and its following changes in swine manures during pyrolysis. About 58% of phosphorus existed as CaHPO 4 and struvite in swine manures, which were gradually transformed into stable Ca-bound species such as hydroxyapatite during pyrolysis. The formation of stable phosphate, together with concentrated carbonates, significantly decreased the available Cu in pyrolyzed manures. These findings suggested that the high levels of S and P in feedstuff profoundly affected the speciation of Cu in the swine manures and derived biochars. This study has important implications to our understanding of the behaviors of heavy metals in manure-derived biochars once entering soil environments.

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“…This article first provides a comprehensive overview of the value and limitations of SR techniques for supporting ecological and environmental physiological investigations, focusing in particular on the application of SR X‐ray‐based techniques for elemental mapping and compound structure analyses (elemental concentration, distribution, and speciation) as these techniques have considerable potential to be employed within the ecological and environmental biology research communities (Luo & Zhang, 2010). Due to the large breadth of SR‐adapted methods that are available (e.g., Fourier‐transform infrared microscopy [SR‐FTIRM] and vacuum ultraviolet [SR‐VUV]), a comprehensive discussion of all SR techniques is not possible (Dejea et al, 2019; Miller & Dumas, 2006; Zhou et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

The value of synchrotron radiation X‐ray techniques to explore microscale chemistry for ecology and evolution research

et al. 2022

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Synchrotron radiation (SR) techniques, which use high‐energy photon beams to create high‐resolution images and spectra of a sample, are valuable analytical methods that have long benefited physical, geological, and biochemical research. Recent developments in synchrotron infrastructure have allowed SR techniques to become a more accessible resource for studying ecological and evolutionary phenomena at the micro‐ or nanoscale. Here we provide a synthesis to SR techniques, how they compare with other analytical techniques, how they have been used, and then discuss how this technology has significant potential for future applications within ecology and evolution research. A literature review demonstrates the growing use of SR techniques within environmental and ecological research communities, alongside the variety of organisms and target elements that have been prioritized since 2000. Clear gaps still exist within the imaging of lighter, biologically relevant elements (e.g., C, N, and P) for assessing their cycling within organisms, and also in the study of a wider range of microbial, vertebrate, and invertebrate species. While different organism types and target elements may require different sample preparation strategies, the selection of an appropriate elemental fixation method (chemical or cryogenic), embedding material, sample thickness, and mounting material is particularly important. We demonstrate the opportunities that SR techniques present to those in the fields of environmental biology, ecology, and evolutionary science who may be unfamiliar, while demystifying the caveats and sample preparation considerations that must be addressed to acquire high‐quality data. While these techniques are currently mainly employed within the context of environmental pollution and ecotoxicology studies, we argue that elemental imaging, X‐ray microscopy and spectroscopic analysis have a huge, largely untapped potential within agri‐ecology, paleoclimatology, and comparative and functional morphology studies.

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Applications of synchrotron-based X-ray techniques in environmental science

Cited by 13 publications

References 80 publications

Atomic spectrometry update-X-ray fluorescence spectrometry

Atomic spectrometry update-X-ray fluorescence spectrometry

Copper Speciation Evolution in Swine Manure Induced by Pyrolysis

The value of synchrotron radiation X‐ray techniques to explore microscale chemistry for ecology and evolution research

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