[1]吕金榜,周蓓蓓,王全九,等.纳米TiO2对土壤水分运动及离子迁移过程影响的试验研究[J].水土保持研究,2015,22(05):58-61,66.
　Lü Jinbang,ZHOU Beibei,WANG Quanjiu,et al.Experimental Study on Effects of Nano TiO2 on Water Movement, Solute Transport in Soil Columns[J].Research of Soil and Water Conservation,2015,22(05):58-61,66.
点击复制

纳米TiO2对土壤水分运动及离子迁移过程影响的试验研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 22 期数: 2015年05期 页码: 58-61,66 栏目: 出版日期: 2015-10-28
Title:
Experimental Study on Effects of Nano TiO2 on Water Movement, Solute Transport in Soil Columns
作者:
吕金榜, 周蓓蓓, 王全九, 胡梓超, 潘二恒
西安理工大学 水利水电学院 西北旱区生态水利工程国家重点实验室培育基地, 西安 710048
Author(s):
Lü Jinbang, ZHOU Beibei, WANG Quanjiu, HU Zichao, PAN Erheng
College of Water Conservancy and Hydropower, State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area, Xi’an University of Technology, Xi’an 710048, China
关键词:
纳米TiO2; 土壤入渗; 水分特征曲线; 溶质穿透曲线; 等温吸附曲线
Keywords:
nano titanium; water infiltration; moisture characteristic curve; solute breakthrough curve; isothermal adsorption curve
分类号:
S152
摘要:
为了研究纳米TiO2对土壤水分养分运动及重金属吸附过程的影响，基于室内一维垂直定水头土柱试验，采用扰动黄绵土均匀添加不同含量纳米TiO2作为研究对象（质量含量分别为0，0.001，0.005，0.01，0.05 g/g），分别测定土壤累积入渗量曲线、水分特征曲线、溶质穿透曲线及重金属等温吸附曲线。结果表明：（1）纳米TiO2对土壤水分入渗过程产生阻碍作用，入渗率随着纳米TiO2含量增加而减小；（2）纳米TiO2可以提高土壤的持水能力，随着纳米TiO2含量增加，相同土壤水吸力下的土壤含水量增大，进气吸力（α）随纳米TiO2含量增加而增大，形状参数（n）随之减小；（3）纳米TiO2可以有效提高土壤吸持惰性离子能力，随纳米TiO2含量增加，初始穿透时间提前，完全穿透时间延长，弥散度增大。（4）相同平衡浓度，随着纳米TiO2含量的增加，Cu2+吸附量加大。采用Langmuir方程拟合Cu2+等温吸附曲线，最大吸附量（Sm）随着纳米TiO2含量增加而增大。研究可为改善黄绵土保水保肥性及重金属污染的治理提供理论依据。
Abstract:
Based on disturbed one-dimensional loessial soil columns, we studied the effects of different nano TiO2 contents (0 g/g, 0.001 g/g, 0.005 g/g, 0.01 g/g and 0.05 g/g) on water movement, solute transport as well as metal adsorption. Cumulative infiltration, the moisture characteristic curves, solute breakthrough curves and isothermal adsorption curve of heavy metals were measured separately during the experimental process. The main results were showed as follows. (1) The nano TiO2 inhibited the process of soil water infiltration and the infiltration rate decreased with the increase of nano TiO2 contents. (2) Nano TiO2 can improve the water-holding capacity of soil, while under the same soil water suction, soil water contents and the inlet suction (α) increased with the increase of nano TiO2 contents, but the shape parameter (n) decreased. (3) Nano TiO2 improved soil solute holding ability effectively; with the increase of nano TiO2 contents, initial penetration time advanced and the dispersivity increased, but the breakthrough time prolonged. (4) With respect to the same equilibrium concentration, the Cu2+ adsorption quantity increased with the increase of nano TiO2 contents. Cu2+ isothermal adsorption curves could be described by the Langmuir equation, and it was found that the maximum adsorption (Sm) increased with the increase of TiO2 contents. These results could provide the theoretical basis for the improvement of soil water and nutrient capacity as well as heavy metal pollution control.

参考文献/References:

[1] 刘秀梅,冯兆滨,张树清,等.纳米-亚微米级复合材料对褐潮土有机无机复合体含量及各粒级复合体中C,N,P含量与分布的影响[J].植物营养与肥料学报,2007,13(1):57-63.
[2] 李绍家,刘凤书,杨海云,等.紫胶改性的研究[J].林业科学研究,1989,2(3):277-280.
[3] 邱惠中.纳米材料及其在航天领域中的应用[J].宇航材料工艺,1996(2):7-10.
[4] 陈军辉,尹华强,刘勇军,等.纳米碳材料及在环境保护中的应用前景[J].化工环保,2004,24(Z1):120-122.
[5] 周建敏,牛显春,农兰平.纳米TIO2光催化处理城市生活废水的研究[J].水土保持研究,2007,14(5):35-36.
[6] 肖亚兵,钱沙华,黄淦泉,等.纳米二氧化钛对砷(Ⅲ)和砷(V)吸附性能的研究[J].分析科学学报,2003,19(2):172-174.
[7] Zheng Lei, Hong Fashui, Lu Shipeng, et al. Effect of nano-TiO2on strength of naturally aged seeds and growth of spinach[J]. Biological Trace Element Research,2005,104(1):83-91.
[8] 刘键,张阳德,张志明.纳米增效肥料对冬小麦产量及品质影响的研究[J].安徽农业科学,2008,36(35):15578-15580.
[9] 刘键,张阳德,张志明.纳米生物技术在水稻、玉米、大豆增产效益上的应用研究[J].安徽农业科学,2008,36(36):15814-15816.
[10] 宋伟,陈百明,刘琳.中国耕地土壤重金属污染概况[J].水土保持研究,2013,20(2):293-298.
[11] 文曼.黄土高原地区生物炭的土壤水动力学效应[D].陕西杨凌:西北农林科技大学,2012.
[12] 高红贝,邵明安.温度对土壤水分运动基本参数的影响[J].水科学进展,2011,22(4):484-494.
[13] 王亚平,潘小费,岑况,等.汞和镉在土壤中的吸附和运移研究进展[J].岩矿测试,2003,22(4):277-282.
[14] Langmuir I. The adsorption of gases on plane surfaces of glass, mica and platinum[J]. Journal of the American Chemical Society,1918,40(9):1361-1403.

相似文献/References:

[1]陈三雄,沈义.黄浦江源头区主要植被类型土壤入渗特征及模拟分析[J].水土保持研究,2016,23(06):59.
　CHEN Sanxiong,SHEN Yi.Simulation Analysis on Soil Infiltration Characteristics Under Main Vegetation Types in Huangpu River Source Region[J].Research of Soil and Water Conservation,2016,23(05):59.
[2]樊贵盛,迟久鉴,王旭照.土壤入渗特性的季节性变化对灌溉效果的影响研究[J].水土保持研究,1996,3(03):35.
　Fan Guisheng,Chi Jiujian,Wang Xuzhao.Research of Influence of Seasonal Change of Soil Infiltration Characteristic on Irrigation Effects[J].Research of Soil and Water Conservation,1996,3(05):35.
[3]夏江宝,杨吉华,李红云.不同外界条件下土壤入渗性能的研究[J].水土保持研究,2004,11(02):115.
　XIA Jiang-bao,YANG Ji-hua,LI Hong-yun.The Research of Soil Infiltration in Different Outside Factors[J].Research of Soil and Water Conservation,2004,11(05):115.
[4]王玉杰,王云琦.重庆缙云山典型林分林地土壤入渗特性研究[J].水土保持研究,2006,13(02):193.
　WANG Yu-jie,WANG Yun-qi.Research on Forest Soil Permeability Capability of Typical Forests in Jinyun Mountain in Chongqing City[J].Research of Soil and Water Conservation,2006,13(05):193.
[5]包昱峰,高甲荣,高阳.密云水库北京集水区典型植被土壤入渗特征研究[J].水土保持研究,2007,14(04):176.
　BAO Li-feng,GAO Jia-rong,GAO Yang.Soil Infiltration Characteristics of Typical Vegetation in the Catchment of Miyun Reservoir[J].Research of Soil and Water Conservation,2007,14(05):176.
[6]周建敏,牛显春,农兰平.纳米TiO2光催化处理城市生活废水的研究[J].水土保持研究,2007,14(05):35.
　ZHOU Jian-min,NIU Xian-chun,NONG Lan-ping.Study of Photocatolytic Degradation from Sewage Water of the City by Using Nanometer TiO2[J].Research of Soil and Water Conservation,2007,14(05):35.
[7]刘培娟,杨吉华,王兴翠,等.新泰土门林场4种林地土壤蓄水性能及渗透速率的研究[J].水土保持研究,2007,14(06):30.
　LIU Pei-juan,YANG Ji-hua,WANG Xing-cui,et al.Study on Soil Water-holding Capability and Permeation Speed under Four Kinds of Forestland in Xintai Tumen Tree Farm[J].Research of Soil and Water Conservation,2007,14(05):30.
[8]徐学华,于树峰,崔立志,等.冀北山地华北落叶松人工林水源涵养功能分析[J].水土保持研究,2009,16(05):162.
　XU Xue-hua,YU Shu-feng,CUI Li-zhi,et al.Analysis on Water Conservation Function of Larix Principis-rupprechtⅡ Man-made Forest in North Mountain of Hebei Province[J].Research of Soil and Water Conservation,2009,16(05):162.
[9]彭亿,李裕元,李忠武,等.红壤坡地生态系统土壤入渗特征比较研究[J].水土保持研究,2009,16(06):205.
　PENG Yi,LI Yu-yuan,LI Zhong-wu,et al.Comparison Study on Soil Infiltration Characteristics in Red Soil Slope Ecosystems[J].Research of Soil and Water Conservation,2009,16(05):205.
[10]孙保平,孙立达.西吉县黄家二岔小流域地表径流和土壤渗透性能的研究[J].水土保持研究,1990,(02):16.
　Sun Baoping,Sun Lida.A Research For Soil Permeability and Surface Runoff in Huangjia-Ercha Small Watershed in Xiji County, Ningxia[J].Research of Soil and Water Conservation,1990,(05):16.

备注/Memo

收稿日期:2015-03-27;改回日期:2015-04-08。
基金项目:国家自然科学基金重点项目（51239009）；国家自然科学基金面上项目（41371239）；陕西省科技支撑项目（2013KJXX-38）；陕西省水利专项支撑计划（2012slkj-04；2013Slkj-04）；陕西省自然科学基金（2015JQ5161）
作者简介:吕金榜(1991-),男,河南新乡人,在读研究生,主要研究方向:农业水土资源与生态环境。E-mail:513453706@qq.com
通讯作者:周蓓蓓(1982-),女,陕西西安人,博士,副教授,主要研究方向:农业水土与生态环境。E-mail:happyangle222@gmail.com

更新日期/Last Update: 1900-01-01