通过氧化和超声波分散制备了氧化石墨烯(GO)纳米片层分散液,再与重铬酸钾进行氧化还原反应制备 GO-Cr (Ⅲ)配合物,应用 FT-IR 和 AFM 对GO-Cr(Ⅲ)配合物和 GO 纳米片层进行了表征.当用含有1．0％ Cr2 O 3和0．04％ GO 的 GO-Cr(Ⅲ)配合物鞣制皮革时能够使皮革的收缩温度提高到118℃,Cr和 GO 的吸收率高达95％,比传统铬鞣剂可减少铬用量30％~50％,研究结果表明了 GO-Cr(Ⅲ)配合物可用作皮革鞣剂,具有用量少、鞣制效果好、吸收率高的特点,原因在于 GO-Cr(Ⅲ)配合物与胶原纤维有强的键合作用及纳米效应,研究结果对于实现少铬鞣制具有积极意义.
The nanometer sheets dispersion of graphene oxide (GO)was prepared by oxidation and ultrasonica-tion,followed carried out the redox reaction with potassium dichromate and GO in order to synthesize the coor-dination complexes (GO-Cr(Ⅲ).The chemical structure and AFM morphology of GO-Cr(Ⅲ)was character-ized by FT-IR and AFM.When tanned the leather using GO-Cr(Ⅲ)tannage contained with 1.0% Cr2 O 3 and 0.04% GO nanosheets,the shrink temperature of tanned leather reached 1 15 ℃ and the adsorption rate of Cr2 O 3 and GO could reach 95%.The dosages of chrome could reduce 30%-50% compared with traditional chrome tannage.The applied results indicated that the GO-Cr(Ⅲ)tannage has the advantages of less dosage, excellent tanning effects and higher adsorption rate compare to the traditional chrome tannage,which may be connected with bonding effects and nano effects of GO-Cr(Ⅲ)and collagen fiber.The research result has posi-tive meaning to tanning leather by using little chrome tannage.
参考文献
| [1] | Anastasios I. Zouboulis;Petros Samaras;Athina Krestou;Nikolaos D. Tzoupanos .LEATHER PRODUCTION MODIFICATION METHODS TOWARDS MINIMIZATION OF TANNING POLLUTION:'GREEN TANNING'[J].Fresenius environmental bulletin: FEB,2012(8b):2406-2412. |
| [2] | HAFIZ RUB NAWAZ;BARKAT ALI SOLANGI;UZMA NADEEM .Preparation of High Exhaust Chrome from Leather Shavings and Hydrocarbons with its Application in Leather Processing for Green Tanning Technology[J].Journal of the Chemical Society of Pakistan,2010(4):525-530. |
| [3] | Corinna Foeldi;Reiner Dohrmann;Katrin Matern;Tim Mansfeldt .Characterization of chromium-containing wastes and soils affected by the production of chromium tanning agents[J].Journal of soil & sediments,2013(7):1170-1179. |
| [4] | V. I. Chursin;K. V. Obolenskaya .Use of Glyoxal in Production of a Composite Chromium Tanning Agent[J].Russian journal of applied chemistry,2011(12):2083-2087. |
| [5] | Fuck W F;Gutterres M;Marcilio N R et al.The influ-ence of chromium supplied by tanning and wet finishing processes on the formation of Cr(Ⅵ)in leather[J].Bra-zilian Journal of Chemical Engineering,2011,28(02):221-228. |
| [6] | S. Sundarapandiyan;Patrick E. Brutto;G. Siddhartha;R. Ramesh;B. Ramanaiah;P. Saravanan;A.B. Mandal .Enhancement of chromium uptake in tanning using oxazolidine[J].Journal of hazardous materials,2011(1/3):802-809. |
| [7] | Josep Torras;Irene Buj;Miquel Rovira;Joande Pablo .Chromium recovery from exhausted baths generated in plating processes and its reuse in the tanning industry[J].Journal of hazardous materials,2012(Mar.30):343-347. |
| [8] | Sepehr M N;Nasseri S;Zarrabi M et al.Removal of Cr(Ⅲ)from tanning effluent by aspergillus niger in airlift bioreactor[J].Separation and purification technology,2012,96:256-262. |
| [9] | A.E Musa;R. Aravindhan;B. Madhan;J. Raghava Rao;B. Chandrasekaran .Henna-Aluminum Combination Tannage:A Greener Alternative Tanning System[J].The Journal of the American Leather Chemists Association,2011(6):190-199. |
| [10] | Gladstone Christopher Jayakumar;L. Santana Bala;Swarna V. Kanth;B. Chandrasekaran;J.R.Rao;B.U.Nair .Combination Tanning System Based on Dialdehyde Alginic Acid: An Ecofriendly Organic Approach[J].The Journal of the American Leather Chemists Association,2011(2):50-58. |
| [11] | Ganesan Krishnamoorthy;Sayeed Sadulla;Praveen Kumar Sehgal;Asit Baran Mandal .Greener approach to leather tanning process: D-Lysine aldehyde as novel tanning agent for chrome-free tanning[J].Journal of cleaner production,2013(Mar.):277-286. |
| [12] | LUO JIANXUN;FENG YANJUAN;SHAN ZHIHUA .Complex Combination Tannage with Phosphonium Compounds, Vegetable Tannins and Aluminium Tanning Agent[J].Journal of the Society of Leather Technologists and Chemists,2011(5):215-220. |
| [13] | 张小婧,赵梓俨,熊倬,陈梦露,王芳,周莹.石墨烯-铋系氧化物复合光催化材料[J].功能材料,2014(16):16001-16008,16013. |
| [14] | 彭黎琼,谢金花,郭超,张东.石墨烯的表征方法[J].功能材料,2013(21):3055-3059. |
| [15] | 吕生华,刘晶晶,邱超超,马宇娟,周庆芳.纳米氧化石墨烯增强增韧水泥基复合材料的微观结构及作用机理[J].功能材料,2014(04):4084-4089. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%