Journal of Inorganic Materials, Volume. 35, Issue 5, 601(2020)
Figures & Tables(10)
1. (a) XRD pattern, (b) EDS analysis, (c) SEM micrograph and (d) TEM image and SAED pattern of the powders prepared by heating and washing the oyster shell
Table 1. Heavy metal content of the calcined products of oyster shells
View tableView in ArticleTable 1. Heavy metal content of the calcined products of oyster shells
Element Calcined product /(mg·kg-1) Limit/(mg·kg-1) Pb <10 30 Cd <1.5 5 Hg <1 5 As <1 3
Table 2. Ca and P concentrations and HA transition degree of samples
View tableView in ArticleTable 2. Ca and P concentrations and HA transition degree of samples
20%HA 40%HA 60%HA Concentration of Ca/(mg·L-1) (19.91±0.72) (20.00±1.08) (20.02±0.52) Concentration of P/(mg·L-1) (1.62±0.17) (3.19±0.22) (4.02±0.19) Degree of HA transition/% (17.5±0.57) (34.3±1.02) (43.2±0.33)
Table 3. Ca2+ concentration and degradation rate of samples
View tableView in ArticleTable 3. Ca2+ concentration and degradation rate of samples
20%HA 40%HA 60%HA CaCO3 Degradation time/d Concentration of Ca2+/(mg·L-1) Degradation rate/% Concentration of Ca2+/(mg·L-1) Degradation rate/% Concentration of Ca2+/(mg·L-1) Degradation rate/% Concentration of Ca2+/(mg·L-1) Degradation rate/% 7 (16.13±0.40) 8.1 (13.39±0.23) 6.7 (11.61±0.92) 5.8 (18.93±0.17) 9.8 14 (30.26±1.12) 15.2 (24.02±0.83) 12.0 (21.62±1.36) 10.8 (42.70±0.19) 22.1 21 (43.20±1.47) 21.7 (33.40±1.38) 16.2 (28.11±1.07) 14.3 (56.41±0.32) 29.2
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Ziyang LIU, Zhen GENG, Zhaoyang LI.
Paper Information
Category: RESEARCH PAPER
Received: Apr. 4, 2019
Accepted: --
Published Online: Mar. 1, 2021
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