PEI功能化秸秆生物炭对水中Cr 6+的吸附性能

doi:10.7503/cjcu20190418

摘要/Abstract

摘要：

选取玉米秸秆为原料, 经过缺氧炭化制备玉米秸秆生物炭, 并以聚乙烯亚胺(PEI)负载于生物炭表面, 制备PEI功能化秸秆生物炭, 研究了其对水中Cr ⁶⁺的吸附性能和机理. 结果表明, 在吸附剂添加量相等条件下, PEI碱性生物炭(PBC)对Cr ⁶⁺的吸附效率明显高于PEI酸性生物炭(HBC)和原始生物炭(CBC). PBC对水中Cr ⁶⁺的最大吸附量为386.3 mg/g, 吸附平衡时间为300 min; 当pH=2.0左右时, 对Cr ⁶⁺的吸附效率最大达到95.94%. 因此, PBC可作为一种高效去除水中Cr ⁶⁺的吸附剂.

关键词: 玉米秸秆, 生物炭, 聚乙烯亚胺, Cr ⁶⁺, 吸附

Abstract:

To study the properties of straw biochar composites and the adsorption characteristics of Cr ⁶⁺ from water, corn stalks were selected as raw material and corn stalk biochar was prepared by anoxic carbonization and loaded on the surface of biochar with polyethyleneimine(PEI). PEI-functionalized straw biochar was prepared, and its adsorption performance and the mechanism of Cr ⁶⁺adsorption were characterized. The results showed that the adsorption efficiency of PEI alkaline biochar(PBC) on Cr ⁶⁺ was significantly higher than that of PEI acidic biochar(HBC) and raw biochar(CBC) under the same conditions of adsorbent addition. The maximum adsorption capacity of Cr ⁶⁺ on PBC from aqueous solution was 386.3 mg/g, and the adsorption equilibrium time was 300 min. When the pH was approximately 2.0, the adsorption efficiency of Cr ⁶⁺ reached 95.94%. Therefore, PBC can be used as an adsorbent for the efficient removal of Cr ⁶⁺ in water.

Key words: Corn stalk, Biochar, Polyethyleneimine, Cr ⁶⁺, Adsorption

中图分类号:

O647

TrendMD:

徐建玲,张頔,聂苗青,王汉席,李龙威. PEI功能化秸秆生物炭对水中Cr ⁶⁺的吸附性能. 高等学校化学学报, 2020, 41(1): 155.

XU Jianling,ZHANG Di,NIE Miaoqing,WANG Hanxi,LI Longwei. Adsorption of Cr ⁶⁺ on Polyethyleneimine-functionalized Straw Biochar from Aqueous Solution ^†. Chem. J. Chinese Universities, 2020, 41(1): 155.

图/表 11

Fig.1 Comparison of adsorption efficiency of CBC and PEI biocharcoal composites

Fig.2 Schematic diagram of preparation process of modified biochar

Table 1 Specific surface area/aperture analysis of CBC and PBC

Biochar	BET Surface area/(m²·g^-1)	Micropore area/(m²·g^-1)	Micropore volume/(cm³·g^-1)	Mesoporous area/(m²·g^-1)	Mesoporous volume/(cm³·g^-1)	Average aperture/nm
CBC	1.3047	1.3425	0.728×10^-3	—	—	0.4103
PBC	1.4934	0.0499	0.017 ×10^-3	2.4137	0.1249×10^-2	0.4324

Fig.3 SEM images of CBC(A) and PBC(B)

Fig.4 Infrared spectra of CBC(a) and PBC(b)

Fig.5 Effect of adsorption time on the adsorption effect of Cr6+

Table 2 Fitting parameters of adsorption kinetics of CBC and PBC for Cr6+

Biochar	First-order kinetic equation			Second-order kinetic equation
Biochar	q_e/(mg·g^-1)	k₁/min^-1	R²	q_e/(mg·g^-1)	k₂/(g·mg^-1·min^-1)	R²
CBC	22.34	0.0191	0.997	22.99	0.0044	0.966
PBC	13.49	0.0233	0.984	40.16	0.0014	0.999

Fig.6 Adsorption isotherms of CBC and PBC for Cr6+ at different temperatures (A) Langmuir equation fitting; (B) Freundlich equation fitting.

Table 3 Fitting parameters of adsorption isotherms of CBC and PBC for Cr6+

Biochar	T/K	Langmuir			Freundlich
Biochar	T/K	q_m/(mg·g^-1)	k_L/(L·mg^-1)	R²	k_F	1/n	R²
CBC	288	189.6	0.0009	0.991	0.588	0.738	0.986
	303	298.1	0.0005	0.990	0.380	0.813	0.989
	313	180.4	0.0014	0.990	1.186	0.661	0.982
PBC	288	386.3	0.0007	0.979	1.080	0.735	0.986
	303	288.6	0.0021	0.979	3.695	0.590	0.970
	313	268.4	0.0033	0.980	6.601	0.514	0.965

Fig.7 Effect of CBC and PBC on the adsorption of Cr6+ at different initial pH

Fig.8 Adsorption-desorption cycles of Cr6+ adsorption on PBC

参考文献 12

[13]	Hu X., Ding Z., Zimmerman A. R ., Wang S., Gao B., Water Res., 2015,68, 206— 216 doi: 10.1016/j.watres.2014.10.009 URL pmid: 25462729
[14]	Jia J., Luan S. J., Wu A. H., Chin. Polym. Bull., 2014,11, 34— 44
	( 贾晋, 栾胜基, 吴爱华. 高分子通报, 2014,11, 34— 44)
[15]	Zhang J. G., Wang Y., Su L., Zhang S. M., Fang G. Z., J. Funct. Mater.,2014,45(8), 8143— 8147
	( 张继国, 王艳, 苏玲, 张盛明, 方桂珍. 功能材料, 2014,45(8), 8143— 8147)
[16]	Gao K. F., Jian M. F., Yu H. P., Chen P. Q., Xie Y. C., Yu P. D., Environ. Chem., 2016,35(8), 1663— 1669
	( 高凯芳, 简敏菲, 余厚平, 陈朴青, 谢永璨, 于培德. 环境化学, 2016,35(8), 1663— 1669)
[17]	Liang L. Y., Wang Y. C., Yan Y., Zheng J. Q., Liu M. D., Ecol. Environ., 2015,2, 305— 309
	( 梁龄予, 王耀晶, 闫颖, 郑基权, 刘鸣达. 生态环境学报, 2015,2, 305— 309)
[18]	Juang R. S ., Wu F. C., Tseng R. L., J. Colloid. Interf. Sci., 2000,227(2), 437— 444 doi: 10.1006/jcis.2000.6912 URL
[19]	Ho Y. S ., Mckay G., Environ. Lett., 1999,34(5), 1179— 1204
[20]	Dong X., Ma L., Li Y ., J. Hazard. Mater., 2011,190(1), 909— 915 doi: 10.1016/j.jhazmat.2011.04.008 URL pmid: 21550718
[21]	Wang Y. Q., Study on Activated Carbon Fiber Based on Kapok, Donghua University, Shanghai, 2008
	( 王元庆. 木棉基活性炭纤维研究,. 上海: 东华大学, 2008)
[1]	Zhang F., Wang B., Wang J. N., Li X. Y., Li C. J., Chem. J. Chinese Universities, 2016,37(11), 2117— 2124
	( 张凡, 汪滨, 王娇娜, 李秀艳, 李从举. 高等学校化学学报, 2016,37(11), 2117— 2124)
[22]	Fu R. Q., Liu Y., Lou Z. M., Sun Y., Zhou X. X., Wang Z. H., Xu X. H., J. Agro-Environ. Sci., 2016,35(10), 1998— 2004
	( 傅瑞琪, 刘榆, 楼子墨, 孙悦, 周晓馨, 王卓行, 徐新华. 农业环境科学学报, 2016,35(10), 1998— 2004)
[2]	Shadreck M., Mugadza T., Afr. J. Pure. Appl. Chem.., 2013,7(9), 310— 317
[3]	Zhou L., Liu Y., Liu S., Yin Y. C ., Zeng G. G., Tan X. F., Hu X., Hu X. J., Jiang L. H., Ding Y., Liu S. H., Huang X. X., Bioresour. Technol., 2016,218, 351— 359 doi: 10.1016/j.biortech.2016.06.102 URL pmid: 27376834
[23]	Du S., Wang L., Xue N., Pei M., Sui W., Guo W ., J. Solid State Chem., 2017,252, 152— 157 doi: 10.1016/j.jssc.2017.04.034 URL
[24]	Lu Y., Zhang S., Yin J., Bai C., Zhang J., Li Y ., Data in Brief, 2018,18, 1448— 1456 doi: 10.1016/j.dib.2018.04.057 URL pmid: 29904649
[4]	Harikishore K. R. D ., Vijayaraghavan K., Kim J. A., Yun Y. S., Adv. Colloid Interface Sci., 2017,242, 35— 58 doi: 10.1016/j.cis.2016.12.002 URL pmid: 28256201
[5]	Chen Y. N., Gao L., He M. F., Wei Y. M., Chem. J. Chinese Universities, 2014,35(7), 1596— 1602 doi: 10.7503/cjcu20140029 URL
[25]	Jin X., Xiang Z., Liu Q., Chen Y., Lu F., Bioresour. Technol., 2017,244, 844— 849 doi: 10.1016/j.biortech.2017.08.072 URL pmid: 28841789
[26]	Sun Y. C., Adsorption Characteristics of Hydrothermal Carbon of Agricultural and Forestry Residues for Wastewater Containing Cr(Ⅵ), Dalian University of Technology, Dalian, 2016
[5]	( 陈佑宁, 高莉, 贺茂芳, 卫引茂. 高等学校化学学报, 2014,35(7), 1596— 1602) doi: 10.7503/cjcu20140029 URL
[6]	Zhang Y. N ., Yu, Y. X., Desalin. Water Treat., 2018,123, 277— 287
[26]	(孙迎超. 水热炭化废弃农林生物质及对含Cr(Ⅵ)废液吸附特性的研究,.大连: 大连理工大学, 2016)
[27]	Liu J. G., Zhou Z. F., Environ. Sci. Manag., 2013,38(8), 161— 165
[7]	O’Connell D. W.., Birkinshaw C., O'Dwyer T. F., Bioresour. Technol., 2008,99(15), 6709— 6724 doi: 10.1016/j.biortech.2008.01.036 URL pmid: 18334292
[8]	Abdolali A., Ngo H. H ., Guo W., Lu S., Chen S. S., Nguyen N. C., Sci. Total Environ., 2016,542, 603— 611 doi: 10.1016/j.scitotenv.2015.10.095 URL pmid: 26544889
[27]	(刘进阁, 周震峰. 环境科学与管理, 2013,38(8), 161— 165)
[28]	Jing Y., Gao H., Yang C ., Asia-Pac. J. Chem. Eng., 2016,11(3), 428— 436 doi: 10.1002/apj.1964 URL
[9]	Ahmed M. B ., Zhou J. L., Ngo H. H., Guo W., Che M., Bioresour. Technol., 2016,214, 836— 851 doi: 10.1016/j.biortech.2016.05.057 URL pmid: 27241534
[10]	Antunes E., Jacob M. V ., Brodie. G., Schneider P. A., J. Environ. Manage., 2017,203, 264— 272 doi: 10.1016/j.jenvman.2017.07.071 URL pmid: 28783023
[29]	Ma F. F., Zhao B. W., Diao J. R., China Environ. Sci., 2017,37(2), 551— 559 doi: 10.1002/etc.3994 URL pmid: 28984376
	(马锋锋, 赵保卫, 刁静茹. 中国环境科学, 2017,37(2), 551— 559) doi: 10.1002/etc.3994 URL pmid: 28984376
[11]	Wang Y., Mei X. Y., Duan Z. Y., He C. H., Xu X. J., Xie D. L., Xu L. Q., Huang Q. H., Mater. Rep., 2017,31(19), 135— 143
	( 王耀, 梅向阳, 段正洋, 何昌华, 徐晓军, 解道雷, 徐龙乾, 黄启华. 材料导报, 2017,31(19), 135— 143)
[30]	Xu S. P., Preparation of Biochar Adsorbent and Study on the Adsorption Properties to Heavy Metals in Aqueous, University of Jinan, Jinan, 2015
	(许世鹏. 生物炭吸附剂研制及对废水中重金属的吸附特性研究,. 济南: 济南大学, 2015)
[31]	Li L., Lu Y. C., Liu Y., Sun H. W., Liang Z. Y., J. Agro-Environ. Sci., 2012,31(11), 2277— 2283
	( 李力, 陆宇超, 刘娅, 孙红文, 梁中耀. 农业环境科学学报, 2012,31(11), 2277— 2283)
[12]	Agrafioti E., Kalderis D., Diamadopoulos E ., J. Environ. Manage., 2014,146, 444— 450 doi: 10.1016/j.jenvman.2014.07.029 URL

PEI功能化秸秆生物炭对水中Cr ⁶⁺的吸附性能

Adsorption of Cr ⁶⁺ on Polyethyleneimine-functionalized Straw Biochar from Aqueous Solution ^†

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