高级搜索

烟秸杆生物碳对铬(Ⅵ)废水的吸附动力学和热力学

,  ,  ,  ,  ,  , 

downloadPDF

上一篇

下一篇

唐文清, 曾荣英, 冯泳兰, 刘梦琴, 张复兴, 彭刚, 戴友芝. 烟秸杆生物碳对铬(Ⅵ)废水的吸附动力学和热力学[J]. 环境工程学报, 2015, 9(11): 5161-5166. doi: 10.12030/j.cjee.20151105
引用本文: 唐文清, 曾荣英, 冯泳兰, 刘梦琴, 张复兴, 彭刚, 戴友芝. 烟秸杆生物碳对铬(Ⅵ)废水的吸附动力学和热力学[J]. 环境工程学报, 2015, 9(11): 5161-5166. doi: 10.12030/j.cjee.20151105
shu
Tang Wenqing, Zeng Rongying, Feng Yonglan, Liu Mengqin, Zhang Fuxing, Peng Gang, Dai Youzhi. Kinetics and thermodynamics of adsorption of Cr(Ⅵ) onto tobacco straw derived-biochar[J]. Chinese Journal of Environmental Engineering, 2015, 9(11): 5161-5166. doi: 10.12030/j.cjee.20151105
Citation: Tang Wenqing, Zeng Rongying, Feng Yonglan, Liu Mengqin, Zhang Fuxing, Peng Gang, Dai Youzhi. Kinetics and thermodynamics of adsorption of Cr(Ⅵ) onto tobacco straw derived-biochar[J]. Chinese Journal of Environmental Engineering, 2015, 9(11): 5161-5166. doi: 10.12030/j.cjee.20151105
shu

烟秸杆生物碳对铬(Ⅵ)废水的吸附动力学和热力学

  • 1.

    衡阳师范学院化学与材料科学学院, 衡阳 421008

  • 2.

    功能金属有机材料湖南省普通高等学校重点实验室, 衡阳 421008

  • 3.

    湘潭大学化工学院, 湘潭 411105

  • 基金项目:

    湖南省自然科学基金资助项目(13JJ9018)

    湖南省重点建设学科资助项目

  • 中图分类号: X703.1

Kinetics and thermodynamics of adsorption of Cr(Ⅵ) onto tobacco straw derived-biochar

  • 1.

    College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China

  • 2.

    Key Laboratory of Functional Organometallic Materials of Hengyang Normal University, College of Hunan Province, Hengyang 421008, China

  • 3.

    College of Chemical Engineering, Xiangtan University, Xiangtan 411105, China

  • Fund Project:

  • 摘要: 以农业废弃物烟秸杆为原料,以KH2PO4为活化剂,制备了烟秸杆生物碳(简称TSC500),通过静态吸附实验研究了TSC500对含Cr(Ⅵ)废水的吸附性能。采用比表面积分析仪对TSC500进行了测试,实验考察了pH值、吸附剂用量、吸附时间、Cr(Ⅵ)初始浓度和温度对Cr(Ⅵ)吸附的影响,深入研究了TSC500对Cr(Ⅵ)的吸附行为。结果表明,在pH=3、温度313 K条件下,0.2 g TSC500吸附100 mg/L Cr(Ⅵ),去除率和吸附容量分别达到91.32%和45.66 mg/g,Langmuir和Freundlich比Temkin等温模型更好地拟合吸附实验数据;准一级和准二级动力学模型均能较好地描述该吸附行为,相关系数高达0.99;计算得到热力学参数ΔGθ、ΔHθ和ΔSθ值表明该吸附过程为自发吸热过程。
    Abstract: The preparation of derived-biochar(TSC500) by monopotassium from agricultural wastes, tobacco straw, was studied to adsorb Cr(Ⅵ) from aqueous solution. TSC500 was characterized by Brunauer-Emmett-Teller(BET) analysis. Batch experiments were conducted to investigate the effects of pH, adsorbent dose, contact time, initial Cr(Ⅵ) concentration and temperature on Cr(Ⅵ) adsorption onto TSC500. The results showed that the removal efficiencies and adsorption capacity were 91.32% and 45.66 mg/g under the following conditions:pH of 3.0,adsorbent dose of 0.2 g, initial Cr(Ⅵ) concentration of 100 mg/L and temperatures of 313 K,respectively. The adsorption isotherms data fit the Langmuir and Freundlich model better than Temkin model. Adsorption of Cr(Ⅵ) followed the First-order and Second-order kinetics with a correlation coefficient R2 higher than 0.99. The obtained thermodynamic parameters(ΔGθ), ΔHθ and ΔSθ) showed that the adsorption of Cr(Ⅵ) onto TSC500 was an endothermic and spontaneous process.
  • 加载中
  • [1] Zhong Qianqian, Yue Qinyan, Li Qian, et al. Removal of Cu(Ⅱ) and Cr(Ⅵ) from wastewater by an amphoteric sorbent based on cellulose-rich biomass. Carbohydrate Polymers, 2014, 111(13): 788-796
    [2] Ovesen J. L., Fan Yunxia, Chen Jing, et al. Long-term exposure to low-concentrations of Cr(Ⅵ) induce DNA damage and disrupt the transcriptional response to benzo[a]pyrene. Toxicology, 2014,316(28):14-24
    [3] 张伟, 杨柳, 蒋海燕, 等. 污泥活性炭的表征及其对Cr(VI)的吸附特性. 环境工程学报, 2014, 8(4): 1439-1446
    [4] Zhang Wei, Yang Liu, Jiang Haiyan, et al. Characterization of sludge-based activated carbon and its adsorption properties on Cr(Ⅵ). Chinese Journal of Environmental Engineering, 2014, 8(4): 1439-1446(in Chinese)
    [5] Wang Jianquan, Song Danqiao, Jia Shanshan, et al. Poly(N, N-dimethylaminoethyl methacrylate)/graphene oxide hybrid hydrogels: PH and temperature sensitivities and Cr(Ⅵ) adsorption. Reactive and Functional Polymers, 2014, 81: 8-13
    [6] 石隽隽, 程丹丹, 王哓红, 等. 石英砂负载β-FeOOH(ACS)吸附除Cr(Ⅵ)的机理分析. 环境科学学报, 2013, 33(7): 1892-1897
    [7] Shi Junjun, Cheng Dandan, Wang Xiaohong, et al. Adsorption mechanism of Cr(Ⅵ) by β-FeOOH-coated sand(ACS). Acta Scientiae Circumstantiae, 2013, 33(7): 1892-1897(in Chinese)
    [8] Behnajady M. A., Bimeghdar S. Synthesis of mesoporous NiO nanoparticles and their application in the adsorption of Cr(VI). Chemical Engineering Journal, 2014, 239(1): 105-113
    [9] Wang Wenwen, Zhou Jiabin, Achari G., et al. Cr(Ⅵ) removal from aqueous solutions by hydrothermal synthetic layered double hydroxides: Adsorption performance, coexisting anions and regeneration studies. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2014, 457(5): 33-40
    [10] Yang Jinbei, Yu Meiqiong, Qiu Ting. Adsorption thermodynamics and kinetics of Cr(Ⅵ) on KIP210 resin. Journal of Industrial and Engineering Chemistry, 2014, 20(2): 480-486
    [11] Lu Min, Guan Xiaohui, Xu Xiaohui, et al. Characteristic and mechanism of Cr(Ⅵ) adsorption by ammonium sulfamate-bacterial cellulose in aqueous solutions. Chinese Chemical Letters, 2013, 24(3): 253-256
    [12] Cui Lili, Meng Qingqiang, Zheng Jieying, et al. Adsorption of Cr(Ⅵ) on 1,2-ethylenediamine-aminated macroporous polystyrene particles. Vacuum, 2013, 89: 1-6
    [13] Gupta V. K., Pathania D., Sharma S., et al. Preparation of bio-based porous carbon by microwave assisted phosphoric acid activation and its use for adsorption of Cr(Ⅵ). Journal of Colloid and Interface Science, 2013, 401(1): 125-132
    [14] Li Wei, Zhang Libo, Peng Jinhui, et al. Tobacco stems as a low cost adsorbent for the removal of Pb(Ⅱ) from wastewater: Equilibrium and kinetic studies. Industrial Crops and Products, 2008, 28(3): 294-302
    [15] Javadian H., Ahmadi M., Ghiasvand M., et al. Removal of Cr(VI) by modified brown algae Sargassum bevanom from aqueous solution and industrial wastewater. Journal of the Taiwan Institute of Chemical Engineers, 2013, 44(6): 977-989
    [16] Silva S. M., Sampaio K. A., Ceriani R., et al. Adsorption of carotenes and phosphorus from palm oil onto acid activated bleaching earth: Equilibrium, kinetics and thermodynamics. Journal of Food Engineering, 2013, 118(4): 341-349
    [17] Araújo B. R., Reis J. O. M., Rezende E. I. P., et al. Application of termite nest for adsorption of Cr(Ⅵ). Journal of Environmental Management, 2013, 129(15): 216-223
    [18] Zhao Yingxin, Yang Shengjiong, Ding Dahu, et al. Effective adsorption of Cr(VI) from aqueous solution using natural Akadama clay. Journal of Colloid and Interface Science, 2013, 395(1): 198-204
    [19] Altındal A., Kurt Ö.,Şengül A., et al. Kinetics of CO2 adsorption on ball-type dicopper phthalocyanine thin film. Sensors and Actuators B: Chemical, 2014, 202(31): 373-381
    [20] Qiu Yuping, Cheng Haiyan, Xu Chao, et al. Surface characteristics of crop-residue-derived black carbon and lead(Ⅱ) adsorption. Water Research, 2008, 42(3): 567-574
    [21] Chen Yiyong, Zhang Dejin. Adsorption kinetics, isotherm and thermodynamics studies of flavones from Vaccinium Bracteatum Thunb leaves on NKA-2 resin. Chemical Engineering Journal, 2014, 254(15): 579-585
    [22] Khan A. A., Singh R. P. Adsorption thermodynamics of carbofuran on Sn(Ⅳ) arsenosilicate in H+, Na+ and Ca2+ forms. Colloids and Surfaces, 1987, 24(1): 33-42
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  1718
  • HTML全文浏览数:  1261
  • PDF下载数:  926
  • 施引文献:  0
出版历程
  • 收稿日期:  2014-08-15
  • 刊出日期:  2015-11-18
唐文清, 曾荣英, 冯泳兰, 刘梦琴, 张复兴, 彭刚, 戴友芝. 烟秸杆生物碳对铬(Ⅵ)废水的吸附动力学和热力学[J]. 环境工程学报, 2015, 9(11): 5161-5166. doi: 10.12030/j.cjee.20151105
引用本文: 唐文清, 曾荣英, 冯泳兰, 刘梦琴, 张复兴, 彭刚, 戴友芝. 烟秸杆生物碳对铬(Ⅵ)废水的吸附动力学和热力学[J]. 环境工程学报, 2015, 9(11): 5161-5166. doi: 10.12030/j.cjee.20151105
shu
Tang Wenqing, Zeng Rongying, Feng Yonglan, Liu Mengqin, Zhang Fuxing, Peng Gang, Dai Youzhi. Kinetics and thermodynamics of adsorption of Cr(Ⅵ) onto tobacco straw derived-biochar[J]. Chinese Journal of Environmental Engineering, 2015, 9(11): 5161-5166. doi: 10.12030/j.cjee.20151105
Citation: Tang Wenqing, Zeng Rongying, Feng Yonglan, Liu Mengqin, Zhang Fuxing, Peng Gang, Dai Youzhi. Kinetics and thermodynamics of adsorption of Cr(Ⅵ) onto tobacco straw derived-biochar[J]. Chinese Journal of Environmental Engineering, 2015, 9(11): 5161-5166. doi: 10.12030/j.cjee.20151105
shu

烟秸杆生物碳对铬(Ⅵ)废水的吸附动力学和热力学

  • 1.  衡阳师范学院化学与材料科学学院, 衡阳 421008
  • 2.  功能金属有机材料湖南省普通高等学校重点实验室, 衡阳 421008
  • 3.  湘潭大学化工学院, 湘潭 411105
  • 收稿日期:  2014-08-15
基金项目:

湖南省自然科学基金资助项目(13JJ9018)

湖南省重点建设学科资助项目

摘要: 以农业废弃物烟秸杆为原料,以KH2PO4为活化剂,制备了烟秸杆生物碳(简称TSC500),通过静态吸附实验研究了TSC500对含Cr(Ⅵ)废水的吸附性能。采用比表面积分析仪对TSC500进行了测试,实验考察了pH值、吸附剂用量、吸附时间、Cr(Ⅵ)初始浓度和温度对Cr(Ⅵ)吸附的影响,深入研究了TSC500对Cr(Ⅵ)的吸附行为。结果表明,在pH=3、温度313 K条件下,0.2 g TSC500吸附100 mg/L Cr(Ⅵ),去除率和吸附容量分别达到91.32%和45.66 mg/g,Langmuir和Freundlich比Temkin等温模型更好地拟合吸附实验数据;准一级和准二级动力学模型均能较好地描述该吸附行为,相关系数高达0.99;计算得到热力学参数ΔGθ、ΔHθ和ΔSθ值表明该吸附过程为自发吸热过程。

English Abstract

    全文HTML

参考文献 (22)

返回顶部

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心