Adsorption-desorption of hydrophilic contaminants rhodamine B with/without Cd2+ on a coastal soil: implications for mariculture and seafood safety
- 100 Downloads
An experimental study on adsorption and desorption behaviors of rhodamine B (RhB) with/without cadmium ion (Cd2+) on a coastal soil was carried out in the face of the scarce studies on its environmental behaviors, especially its combined pollution with metal ions. The implications on mariculture and seafood safety, rarely concerned either, were also analyzed for providing a new insight between azo dyes and them. It showed that the adsorption of RhB on the tested soil was affected by Cd2+ and could be better fitted by the Freundlich model and dominantly identified as chemical adsorption according to the threshold of ΔG0 (40 kJ/mol). There is a positive hysteresis on the desorption of RhB, which was generally strengthened with the increasing concentration of RhB but generally weakened in the presence of Cd2+. The azo dyes including RhB and heavy metals such as Cd, as the major class of typical pollutants in coastal environment, are closely related to the mariculture and seafood safety. In the consideration of three aspects including potential pollutants for the mariculture, potential risks for seafood safety, and potential relationships between dyes and mariculture and seafood safety, their implications were further clarified.
KeywordsRhodamine B Cadmium Sorption behavior Soil Mariculture Seafood safety
We would also like to thank the anonymous reviewers of our manuscript.
This study is financially supported by the National Natural Science Foundation of China as a general project (grant no. 21677080), special funds for basic scientific research services of central colleges and universities, and the 111 program (T2017002).
- Chen CC, Li XZ, Ma WH, Zhao JC, Hidaka H, Serpone N (2002) Effect of transition metal ions on the TiO2-assisted photodegradation of dyes under visible irradiation: a probe for the interfacial electron-transfer process and reaction mechanism. J Phys Chem 106:318–324. https://doi.org/10.1021/jp0119025 CrossRefGoogle Scholar
- Feng XM, Han L, Chao DY, Liu Y, Zhang YJ, Wang RG, Guo JK, Feng RW, Xu YM, Ding YZ (2017) Ionomic and transcriptomic analysis provides new insight into the distribution and transport of cadmium and arsenic in rice. J Hazard Mater 331:246–256. https://doi.org/10.1016/j.jhazmat.2017.02.041 CrossRefGoogle Scholar
- Fernández-Calviño D, Pérez-Armada L, Cutillas-Barreiro L, Paradelo-Núñez R, Núñez-Delgado A, Fernández-Sanjurjo MJ, Álvarez-Rodriguez E, Arias-Estévez M (2016) Changes in Cd, Cu, Ni, Pb and Zn fractionation and liberation due to mussel shell amendment on a mine soil. Land Degrad Dev 27(4):1276–1285. https://doi.org/10.1002/ldr.2505 CrossRefGoogle Scholar
- Gu YG, Ke CL, Liu Q, Lin Q (2016) Polycyclic aromatic hydrocarbons (PAHs) in sediments of Zhelin Bay, the largest mariculture base on the eastern Guangdong coast, South China: characterization and risk implications. Mar Pollut Bull 110:603–608. https://doi.org/10.1016/j.marpolbul.2016.06.025 CrossRefGoogle Scholar
- Gu YG, Ouyang J, Ning JJ, Wang ZH (2017) Distributionand sources of organic carbon, nitrogen and their isotopes in surface sediments from the largest mariculture zone of the eastern Guangdong coast, South China. Mar Pollut Bull 120:286–−291. https://doi.org/10.1016/j.marpolbul.2017.05.013 CrossRefGoogle Scholar
- Guss R, Johnson F, Maurice D (1984) Rhodamine B as a test molecule in intraocular dynamics. Investig Ophthalmol Vis Sci 25(6):758–762 www.iovs.arvojournals.org/article.aspx?articleid=2159656&resultClick=1 Google Scholar
- Liu YX, Alessi DS, Owttrim GW, Petrash DA, Mloszewska AM, Lalonde SV, Martinez RE, Zhou QX, Konhause KO (2015) Cell surface reactivity of Synechococcus sp. PCC 7002: implications for metal sorption from seawater. Geochim Cosmochim Acta 169:30–44. https://doi.org/10.1016/j.gca.2015.07.033 CrossRefGoogle Scholar
- Pinkus H, Mehregan AH, Rahbari H, Krobock E (1980) Rhodamin B stain for keratin: evaluation of its specificity and its application in dermal pathology. J Cutan Pathol 7(4):222–226. https://doi.org/10.1111/j.1600-0560.1980.tb01220.x CrossRefGoogle Scholar
- Qu JH, Meng XL, You H, Ye XQ, Du ZL (2017) Utilization of rice husks functionalized with xanthates as cost-effective biosorbents for optimal Cd(II) removal from aqueous solution via response surface methodology. Bioresour Technol 241:1036–1042. https://doi.org/10.1016/j.biortech.2017.06.055 CrossRefGoogle Scholar
- Su XM, Li XY, Li JJ, Liu M, Lei FH, Tan XC, Li PF, Luo WQ (2015) Synthesis and characterization of core–shell magnetic molecularly imprinted polymers for solid-phase extraction and determination of Rhodamine B in food. Food Chem 171:292–297. https://doi.org/10.1016/j.foodchem.2014.09.024 CrossRefGoogle Scholar
- Wang HS, Du J, Leung HM, Leung AOW, Liang P, Giesy JP, Wong CKC, Wong MH (2011) Distribution and source approtionments of polychlorinated biphenyls (PCBs) in mariculture sediments from the Pearl River Delta, South China. Mar Pollut Bull 63:516–522. https://doi.org/10.1016/j.marpolbul.2011.02.009 CrossRefGoogle Scholar
- Wang Y, Wu XW, Zhao HX, Xie Q, Hou MM, Zhang QN, Du J, Chen JW (2017b) Charaterization of PBDEs and novel brominated flame retardants in seawater near a coastal mariculture area of the Bohai Sea, China. Sci Total Environ 580:1446–1452. https://doi.org/10.1016/j.scitotenv.2016.12.114 CrossRefGoogle Scholar
- Xue SG, Shi LZ, Wu C, Wu H, Qin YY, Pan WS, Hartley W, Cui MQ (2017) Cadmium, lead, and arsenic contamination in paddy soils of a mining area and their exposure effects on human HEPG2 and keratinocyte cell-lines. Environ Res 156:23–30. https://doi.org/10.1016/j.envres.2017.03.014 CrossRefGoogle Scholar
- Zhou QX (1995) Combined–pollution ecology. China Environmental Science Press, BeijingGoogle Scholar
- Zhou QX, Kong FX, Zhu L (2004b) An introduction to ecotoxicology. Science Press, BeijingGoogle Scholar