Study on Mobility of Chitosan Coated Fe/Ni Bimetal Nanoparticles and Their Reactivity for Trichloroethylene Degradation in Groundwater

doi:10.19657/j.geoscience.1000-8527.2018.06.20

Abstract

Abstract:

Trichloroethylene (TCE) poses a serious threat to the public health and environmental safety. In-situ injection of nano zero-valent iron (nZVI) can be used to degrade TCE in groundwater. However, in application, nZVI is easy to be oxidized and aggregated, resulting in loss of reactivity and poor mobility. Accordingly, in the present study, we used the natural polymer chitosan as a coating agent to increase the dispersion and stability, and loaded nickel as a catalyst to enhance the reactivity. A chitosan-coated nano-iron-nickel bimetallic particle (CS-Fe-Ni) was successfully prepared. The spectrum of CS-Fe-Ni sedimentation showed the dispersion and stability of nanoparticles were improved. The Zeta potential analysis indicated that the negative charge of particle surface increased due to coating chitosan, which promoted the electrostatic repulsion among the nano-particles and the dispersion stability of CS-Fe-Ni. The column experiments showed the mobility of modified CS-Fe-Ni was largely improved. The batch experiments showed that CS-Fe-Ni can be able to highly degrade TCE for complete dechlorination. The results obtained from this study provided the theoretical and experimental basis for the application of nZVI in-situ remediation technology.

Key words: nano zero-valent iron, bimetal, chitosan, mobility, trichloroethylene

CLC Number:

X142

ZHOU Xuanyi, LI Zhe, CHEN Jiawei. Study on Mobility of Chitosan Coated Fe/Ni Bimetal Nanoparticles and Their Reactivity for Trichloroethylene Degradation in Groundwater[J]. Geoscience, 2018, 32(06): 1322-1328.

Figures/Tables 9

Fig.1 Sketch map of column experiment apparatus

Fig.2 SEM-EDS analysis of CS-Fe-Ni sample

Fig.3 XPS analysis of CS-Fe-Ni sample

Fig.4 UV-Vis spectrum of CS-Fe-Ni sedimentation

Fig.5 Zeta potential measurements of CS-Fe-Ni

Fig.6 Transport of Fe-Ni and CS-Fe-Ni in quartz sand column

Fig.7 Comparison of CS-Fe-Ni and Fe-Ni reactivity on TCE degradation (TCE: 13 mg/L, CS-Fe-Ni: 2 g/L, Fe-Ni: 1 g/L, CS: 1g/L, pH: 8.3)

Fig.8 Concentration of Cl- in solution during TCE degradation by CS-Fe-Ni(TCE:13 mg/L, CS-Fe-Ni: 2.5 g/L, pH:8.3)

Fig.9 Mechanism of TCE degradation by CS-Fe-Ni

References 30

[1]	李钰婷, 张亚雷, 代朝猛, 等. 纳米零价铁颗粒去除水中重金属的研究进展[J]. 环境化学, 2012, 31(9):1349-1354.
[2]	高存荣, 王俊桃. 中国69个城市地下水挥发性卤代烃污染检测与特征研究[J]. 地球科学与环境学报, 2012, 34(1):66-71.
[3]	KREMBS F J, SIEGRIST R L, CRIMI M L, et al. ISCO for groundwater remediation: analysis of field applications and performance[J]. Ground Water Monitoring and Remediation, 2010, 30(4):42-53. DOI URL
[4]	BONI M R, SBAFFONI S. The potential of compost-based biobarriers for Cr(VI) removal from contaminated groundwater: column test[J]. Journal of Hazardous Materials, 2009, 166(2/3):1087-1095. DOI URL
[5]	NISENDWANA B, MAMBA B B, SAMPATH S, et al. Synthesis,characterisation and application of an exfoliated graphite-diamond composite electrode in the electrochemical degradation of trichloroethylene[J]. RSC Advances, 2013, 3(46):24473-24483. DOI URL
[6]	LIU Y Q, MAJETICH S A, TILTON R D, et al. TCE dechlorination rates,pathways,and efficiency of nanoscale iron particles with different properties[J]. Environment Science and Techno-logy, 2005, 39(5):1338-1345.
[7]	FU F L, DIONYSIOU D D, LIU H. The use of zero-valent iron for groundwater remediation and wastewater treatment: A review[J]. Journal of Hazardous Materials, 2014, 267(3):194-205. DOI URL
[8]	CHOI H, ALABED S R, AGARWAL S, et al. Synthesis of reactive nano-Fe/Pd bimetallic system-impregnated activated carbon for the simultaneous adsorption and dechlorination of PCBs[J]. Chemistry of Materials, 2015, 20(11):3649-3655. DOI URL
[9]	TRUJILLO-REYES J, SÁNCHEZ-MENDIETA V, COLÍN-CRUZ A, et al. Removal of indigo blue in aqueous solution using Fe/Cu nanoparticles and C/Fe-Cu nanoalloy composites[J]. Water,Air,and Soil Pollution, 2010, 207(1/4):307-317. DOI URL
[10]	FANG Z Q, QIU X H, CHEN J H, et al. Debromination of polybrominated diphenyl ethers by Ni/Fe bimetallic nanoparticles: Influencing factors,kinetics,and mechanism[J]. Journal of Hazardous Materials, 2011, 185(2/3):958-969. DOI URL
[11]	李晨桦, 陈家玮. 膨润土负载纳米铁去除地下水中六价铬研究[J]. 现代地质, 2012, 26(5):932-938.
[12]	尚海涛, 李智灵, 杨琦, 等. 负载型纳米Pd/Fe对挥发性氯代烃的去除[J]. 现代地质, 2008, 22(2):313-320.
[13]	SAHU R S, BINDUMADHVAN K, DOONG R A. Boron-doped reduced graphene oxide-based bimetallic Ni/Fe nanohybrids for the rapid dechlorination of trichloroethylene[J]. Enviromental Science Nano, 2017, 4(3):565-576.
[14]	WANG S H, HAN Y T, CAO X, et al. Enhanced degradation of trichloroethylene using bentonite-supported nanoscale Fe/Ni and humic acids[J]. Environmental Chemistry Letters, 2016, 14(2):237-242. DOI URL
[15]	DANISH M, GU X G, LU S G, et al. An efficient catalytic degradation of trichloroethylene in a percarbonate system catalyzed by ultra-fine heterogeneous zeolite supported zerovalent iron-nickel bimetallic composite[J]. Applied Catalysis A:General, 2017, 531:177-186. DOI URL
[16]	姬航, 何娴, 曹茜, 等. 羧甲基纤维素稳定纳米铁去除水中六价铬的研究[J]. 现代地质, 2013, 27(6):1484-1488.
[17]	金晓英, 陈征贤, 郭飞鹏, 等. 超声波辅助壳聚糖/零价纳米铁降解酸性品红[J]. 环境科学学报, 2013, 33(4):1004-1009.
[18]	和婧, 王向宇, 王培, 等. PAA改性纳米铁强化还原降解水中亚甲基蓝[J]. 环境科学, 2015, 36(3):980-988.
[19]	耿兵, 李铁龙, 金朝晖, 等. 壳聚糖稳定纳米铁的制备及其对地表水中Cr(Ⅵ)的去除性能[J]. 高等学校化学学报, 2009, 30(4):796-799.
[20]	DONG H R, HE Q, ZENG G M, et al. Chromate removal by surface-modified nanoscale zero-valent iron:Effect of different surface coatings and water chemistry[J]. Journal of Colloid and Interface Science, 2016, 471:7-13. DOI URL
[21]	ZHU B W, LIM T T, FENG J. Reductive dechlorination of 1,2,4-trichlorobenzene with palladized nanoscale Fe⁰ particles supported on chitosan and silica[J]. Chemosphere, 2006, 65(7):1137-1145. DOI URL
[22]	KUSTOV L M, FINASHINA E D, SHUVALOVA E V, et al. Pd-Fe nanoparticles stabilized by chitosan derivatives for perchloroethene dechlorination[J]. Environment International, 2011, 37(6):1044-1052. DOI PMID
[23]	ZHAO D, CHENG J, CHEN J W. One-step synthesis of bento-nite-supported nanoscale Fe/Ni bimetals for rapid degradation of methyl orange in water[J]. Environmental Chemistry Letters, 2014, 12(3):461-466. DOI URL
[24]	李志雄, 韩奕彤, 徐永强, 等. 动态光散射技术原位表征天然有机质存在下纳米零价铁的团聚效应[J]. 岩矿测试, 2016, 35(6):634-641.
[25]	XU H Y, SUN Y K, LI J X, et al. Aging of zero-valent iron in synthetic groundwater:XPS depth profiling characterization and depassivation with uniform magnetic field[J]. Environmental Science and Technology, 2016, 50(15):8214-8222. DOI URL
[26]	SALEH N B, KIM H J, PHENRAT T, et al. Ionic strength and composition affect the mobility of surface-modified Fe-0 nanoparticles in water-saturated sand columns[J]. Environmental Science and Technology, 2008, 42(9):3349-3355. DOI URL
[27]	HAN Y L, LIU C J, HORITA J, et al. Trichloroethylene (TCE) hydrodechlorination by Ni-Fe nanoparticles:Influence of aqueous anions on catalytic pathways[J]. Chemosphere, 2018, 205:404-413. DOI URL
[28]	LIN K S, MDLOVU N V, CHEN C Y, et al. Degradation of TCE,PCE,and 1,2-DCE DNAPLs in contaminated groundwater using polyethylenimine-modified zero-valent iron nanoparticles[J]. Journal of Cleaner Production, 2018, 175:456-466. DOI URL
[29]	SCHRICK B, BLOUGH J L, JONES A D, et al. Hydrodechlorination of trichloroethylene to hydrocarbons using bimetallic nickel-iron nanoparticles[J]. Chemistry of Materials, 2002, 14(12):5140-5147. DOI URL
[30]	CWIERTNY D M, BRANSFIELD S J, LIVI K J T, et al. Exploring the influence of granular iron additives on 1, 1, 1-trichloroethane reduction[J]. Environmental Science and Technology, 2006, 40(21):6837-6843. DOI URL