Adsorption and desorption properties of degradable microplastic for Cu2+ and Zn2+
FAN Xiu-lei1,2, CHANG Zhuo-heng1,2, ZOU Ye-feng1,2, LIU Jia-qiang3, LI Ying1,4, HOU Jun4,5
1. College of Environmental Engineering, Xuzhou University of Technology, Xuzhou 221018, China; 2. Key Laboratory of Industrial Pollution Control and Resource Reuse of Jiangsu Province, Xuzhou 221018, China; 3. School of Environment and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China; 4. College of Environment, Hohai University, Nanjing 210098, China; 5. Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Nanjing 210098, China
Abstract：In order to evaluate the carrier effects of degradable microplastics on co-existing pollutants, the adsorption and desorption behaviors of heavy metals (Cu2+, Zn2+) by degradable microplastics was explored, and conventional microplastics PP were selected for control experiments. During the UV ageing process, microplastics (MPs) showed surface cracks, pits, increased specific surface area, increased of negative charge, increased strength of oxygen-containing functional groups and enhanced hydrophilicity. Compared with PP, the physical and chemical properties of PLA were significantly changed during UV ageing. The adsorption capacity of MPs after ageing was much higher than that before ageing, and the maximum adsorption capacity of Cu2+ by aged PLA was 5.56mg/g, which was about 2.5 times that of original PLA (2.27mg/g). The adsorption capacity of PLA to heavy metals before and after ageing was better than that of PP. In the desorption experiment, the desorption rate of MPs to heavy metals after ageing were both lower than before ageing. The desorption capacity and desorption rate of Cu2+ and Zn2+ by PLA were higher than that of PP. Compared with gastric fluid environment, MPs desorption of metal ions was easier in intestinal fluid environment before and after ageing. The results showed that PLA had a stronger carrier effect on heavy metals than PP. At the same time, the results of desorption experiments (simulating human stomach and intestinal environment) showed that PLA was more likely to release heavy metal pollutants into the human body, thereby posing a threat to human health.
范秀磊, 常卓恒, 邹晔锋, 刘加强, 李莹, 侯俊. 可降解微塑料对铜和锌离子的吸附解吸特性[J]. 中国环境科学, 2021, 41(5): 2141-2150.
FAN Xiu-lei, CHANG Zhuo-heng, ZOU Ye-feng, LIU Jia-qiang, LI Ying, HOU Jun. Adsorption and desorption properties of degradable microplastic for Cu2+ and Zn2+. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(5): 2141-2150.
马思睿,李舒行,郭学涛.微塑料的老化特性、机制及其对污染物吸附影响的研究进展[J]. 中国环境科学, 2020,40(9):3992-4003. Ma S R, Li S X, Guo X T. A review on aging characteristics, mechanism of microplastics and their effects on the adsorption behaviors of pollutants[J]. China Environmental Science, 2020,40(9):3992-4003.
[2]
Sato S, Saika A, Shinozaki Y, et al. Degradation profiles of biodegradable plastic films by biodegradable plastic-degrading enzymes from the yeast Pseudozyma antarctica and the fungus Paraphoma sp. B47-9[J]. Polymer Degradation & Stability, 2017,141:26-32.
[3]
Zuo L Z, Li H X, Lin L, et al. Sorption and desorption of phenanthrene on biodegradable poly(butylene adipate co-terephtalate) microplastics[J]. Chemosphere, 2019,215:25-32.
[4]
张凯,孙红文.(可降解)微塑料颗粒吸附有机污染物及对其生物有效性的影响[J]. 环境化学, 2018,37(3):375-382. Zhang K, Sun H W. Adsorption of organic pollutants on (degradable) microplastics and the influences on their bioavailability[J]. Environmental Chemistry, 2018,37(3):375-382.
[5]
Mato Y, Isobe T, Takada H, et al. Plastic resin pellets as a transport medium for toxic chemicals in the marine environment[J]. Environmental Ence & Technology, 2001,35(2):318-324.
[6]
Hartmann N B, Rist S, Bodin J, et al. Microplastics as vectors for environmental contaminants:Exploring sorption, desorption, and transfer to biota[J]. Integrated Environmental Assessment & Management, 2017,13(3):488-493.
[7]
Anirudhan T S, Bringle C D, Radhakrishnan P G. Heavy metal interactions with phosphatic clay:Kinetic and equilibrium studies[J]. Chemical Engineering Journal, 2012,200-202:149-157.
[8]
Wu P, Cai Z, Jin H, et al. Adsorption mechanisms of five bisphenol analogues on PVC microplastics[J]. Ence of the Total Environment, 2018,650(PT.1(1-834)):671-678.
[9]
Mehdi, Hosseini, Seyed, et al. Heavy metals (Cd, Co, Cu, Ni, Pb, Fe, and Hg) content in four fish commonly consumed in Iran:risk assessment for the consumers[J]. Environmental Monitoring & Assessment, 2015,187:237.
[10]
Caruso G. Microplastics as vectors of contaminants[J]. Marine Pollution Bulletin, 2019,146:921-924.
[11]
张瑞昌,李泽林,魏学锋,等.模拟环境老化对PE微塑料吸附Zn(Ⅱ)的影响[J]. 中国环境科学, 2020,40(7):3135-3142. Zhang R C, Li Z L, Wei X F, et al. Effects of simulated environmental aging on the adsorption of Zn(Ⅱ) onto PE microplastics[J]. China Environmental Science, 2020,40(7):3135-3142.
[12]
Shruti V C, Kutralam-Muniasamy G. Bioplastics:Missing link in the era of Microplastics[J]. Science of The Total Environment, 2019,697.
[13]
Bakir A, Rowland S J, Thompson R C. Enhanced desorption of persistent organic pollutants from microplastics under simulated physiological conditions[J]. Environ Pollut, 2014,185:16-23.
[14]
谢岩黎,史秀丽.微胶囊化维生素A在模拟胃肠液中释放特性的研究[J]. 现代食品科技, 2007,23(11):27-29. Xie Y L, Shi X L. Study on the release of kinetic model of vitamin a microcapsule in false gastric and intestines succus[J]. Modern Food Science and Technology, 2007,23(11):27-29.
[15]
Burton R E, Kim S, Patel R, et al. Structuralfeatures of bovine colostral immunoglobulin that confer proteolytic stability in a simulated intestinal fluid[J]. Journal of Biological Chemistry, 2020, 295(34):12317-12327.
[16]
Wang C, Fan X, Wang P, et al. Adsorption behavior of lead on aquatic sediments contaminated with cerium dioxide nanoparticles[J]. Environmental Pollution, 2016:416-424.
[17]
Foo K Y, Hameed B H. Insights into the modeling of adsorption isotherm systems[J]. Chemical Engineering Journal, 2010,156(1):2-10.
[18]
Cai L, Wang J, Peng J, et al. Observation of the degradation of three types of plastic pellets exposed to UV irradiation in three different environments[J]. Ence of the Total Environment, 2018,628:740-747.
[19]
Ho K L G, Iii A L P. Effects of electron-beam irradiation and ultraviolet light (365nm) on polylactic acid plastic films[J]. Journal of Environmental Polymer Degradation, 1999,7(2):93-100.
[20]
Liu X, Jian X, Liang L. Investigation of pore structure and fractal characteristics of organic-rich Yanchang formation shale in central China by nitrogen adsorption/desorption analysis[J]. Plateau Meteorology, 2015,22(7):62-72.
[21]
Liu P, Qian H Y, Zhan X, et al. New insights into the aging behavior of microplastics accelerated by advanced oxidation processes[J]. Environmental Science & Technology, 2019,53:3579-3588.
[22]
Sun W, Jiang B, Wang F, et al. Effect of carbon nanotubes on Cd(Ⅱ) adsorption by sediments[J]. Chemical Engineering Journal, 2015,264:645-653.
[23]
Liu G, Zhu Z, Yang Y, et al. Sorption behavior and mechanism of hydrophilic organic chemicals to virgin and aged microplastics in freshwater and seawater[J]. Environmental Pollution, 2019,246:26-33.
[24]
Marchessault R H. Application of infra-red spectroscopy to cellulose and wood polysaccharides[J]. Pure & Applied Chemistry, 1962, 5(1/2):107-130.
[25]
Célino A, Gonçalvesb O, Jacquemin F, et al. Qualitative and quantitative assessment of water sorption in natural fibres using ATR-FTIR spectroscopy[J]. Carbohydrate Polymers, 2014,101:163-170.
[26]
Hueffer, Thorsten, Weniger, et al. Sorption of organic compounds by aged polystyrene microplastic particles[J]. Environmental Pollution, 2018,236:218-225.
[27]
Subowo W S, Barmawi M, Liang O B. Growth of carbonyl index in the degradation of polypropylene by UV irradiation[J]. Journal of Polymer Science Part A Polymer Chemistry, 1986,24(6):1351-1362.
[28]
Wieslander A, Linden T, Musi B, et al. Exogenous uptake of carbonyl stress compounds promoting AGE formation from peritoneal dialysis fluids[J]. Contributions to Nephrology, 2001,131:82-89.
[29]
Belmonte G K, Charles G, Cristina Strumia M, et al. Permanent hydrophilic modification of polypropylene and poly(vinyl alcohol) films by vacuum ultraviolet radiation[J]. Applied Surface Science, 2016,382:93-100.
[30]
Chen Q, Zhang H, Allgeier A, et al. Marine microplastics bound dioxin-like chemicals:Model explanation and risk assessment[J]. Journal of Hazardous Materials, 2019,364(15):82-90
[31]
Wang Q J, Zhang Y, Wangjin X X, et al. The adsorption behavior of metals in aqueous solution by microplastics effected by UV radiation[J]. Journal of Environmental Sciences, 2020,87:272-280.
[32]
Wang J, Peng J, Tan Z, et al. Microplastics in the surface sediments from the Beijiang River littoral zone:Composition, abundance, surface textures and interaction with heavy metals[J]. Chemosphere, 2017, 171:248-258.
[33]
Gupta V K, Rastogi A, Nayak A. Biosorption of nickel onto treated alga (Oedogonium hatei):Application of isotherm and kinetic models[J]. Journal of Colloid and Interface Science, 2010,342:533-539.
[34]
Wang C, Fan X, Wang P, et al. Adsorption behavior of lead on aquatic sediments contaminated with cerium dioxide nanoparticles[J]. Environmental Pollution, 2016,219:416-424.
[35]
Reddad Z, Gerente C, Andres Y, et al. Adsorption of several metal ions onto a low-cost biosorbent:kinetic and equilibrium studies[J]. Environmental Ence & Technology, 2002,36(9):2067-2073.
[36]
Wu P, Cai Z, Jin H, et al. Adsorption mechanisms of five bisphenol analogues on PVC microplastics[J]. The ence of the Total Environment, 2019,650:671-678.
[37]
Lu, Bianhe, Wang, et al. Effects of carbon nanotubes on phosphorus adsorption behaviors on aquatic sediments[J]. Ecotoxicology & Environmental Safety, 2017,142:230-236.
[38]
Ahmad S, Wan N, Ismail A F, et al. Adsorptive removal of heavy metal ions using graphene-based nanomaterials:Toxicity, roles of functional groups and mechanisms[J]. Chemosphere, 2020,248:126008.
[39]
林育权,马嫱,袁晨雪,等.微塑料吸附铜离子的初步研究[J]. 化学工程师, 2019,10:76-79. Lin Y Q, Ma Q, Yuan C X, et al. Study on copper ion adsorption in waters by micro plastics[J]. Chemical Engineer, 2019,10:76-79.
[40]
杜健.PE微塑料对水中重金属离子吸附效果研究[J]. 塑料科技, 2020,7:56-59. Du J. Study on the adsorption effect of PE microplastics on heavy metal ions in water[J]. Plastics Science and Technology, 2020,7:56-59.
[41]
Fan X, Zou Y, Geng N, et al. Investigation on the adsorption and desorption behaviors of antibiotics by degradable MPs with or without UV ageing process[J]. Journal of Hazardous Materials, 2021,401:123363.
[42]
Jin H, Zhou W, Zhu L. Utilizing surfactants to control the sorption,desorption, and biodegradation of phenanthrene in soil-water system[J]. Journal of Environmental Sciences, 2013,(7):97-103.
[43]
Zuo L Z, Li H X, Lin L, et al. Sorption and desorption of phenanthrene on biodegradable poly(butylene adipate co-terephtalate) microplastics[J]. Chemosphere, 2019,215:25-32.
