TY - JOUR
T1 - Removal of CdTe in acidic media by magnetic ion-exchange resin
T2 - A potential recycling methodology for cadmium telluride photovoltaic waste
AU - Zhang, Teng
AU - Dong, Zebin
AU - Qu, Fei
AU - Ding, Fazhu
AU - Peng, Xingyu
AU - Wang, Hongyan
AU - Gu, Hongwei
PY - 2014/8/30
Y1 - 2014/8/30
N2 - Sulfonated magnetic microspheres (PSt-DVB-SNa MPs) have been successfully prepared as adsorbents via an aqueous suspension polymerization of styrene-divinylbenzene and a sulfonation reaction successively. The resulting adsorbents were confirmed by means of Fourier transform infrared spectra (FT-IR), X-ray diffraction (XRD), transmission electron microscope (TEM), scanning electron microscope equipped with an energy dispersive spectrometer (SEM-EDS) and vibrating sample magnetometer (VSM). The leaching process of CdTe was optimized, and the removal efficiency of Cd and Te from the leaching solution was investigated. The adsorbents could directly remove all cations of Cd and Te from a highly acidic leaching solution of CdTe. The adsorption process for Cd and Te reached equilibrium in a few minutes and this process highly depended on the dosage of adsorbents and the affinity of sulfonate groups with cations. Because of its good adsorption capacity in strong acidic media, high adsorbing rate, and efficient magnetic separation from the solution, PSt-DVB-SNa MPs is expected to be an ideal material for the recycling of CdTe photovoltaic waste.
AB - Sulfonated magnetic microspheres (PSt-DVB-SNa MPs) have been successfully prepared as adsorbents via an aqueous suspension polymerization of styrene-divinylbenzene and a sulfonation reaction successively. The resulting adsorbents were confirmed by means of Fourier transform infrared spectra (FT-IR), X-ray diffraction (XRD), transmission electron microscope (TEM), scanning electron microscope equipped with an energy dispersive spectrometer (SEM-EDS) and vibrating sample magnetometer (VSM). The leaching process of CdTe was optimized, and the removal efficiency of Cd and Te from the leaching solution was investigated. The adsorbents could directly remove all cations of Cd and Te from a highly acidic leaching solution of CdTe. The adsorption process for Cd and Te reached equilibrium in a few minutes and this process highly depended on the dosage of adsorbents and the affinity of sulfonate groups with cations. Because of its good adsorption capacity in strong acidic media, high adsorbing rate, and efficient magnetic separation from the solution, PSt-DVB-SNa MPs is expected to be an ideal material for the recycling of CdTe photovoltaic waste.
KW - Cadmium telluride
KW - Ion-exchange resins
KW - Magnetic microsphere
KW - Magnetic separation
UR - http://www.scopus.com/inward/record.url?scp=84907300360&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2014.07.024
DO - 10.1016/j.jhazmat.2014.07.024
M3 - Article
C2 - 25128764
AN - SCOPUS:84907300360
SN - 0304-3894
VL - 279
SP - 597
EP - 604
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
ER -
