Department of Chemistry, Faculty of Science and Technology, Thammasat University, Pathumthani, 12120, Thailand.
Bioenergy and Biochemical Refinery Technology Program, Faculty of Science and Technology, Thammasat University, Pathumthani, 12120, Thailand.
Sci Rep. 2021 Jan 14;11(1):1459. doi: 10.1038/s41598-020-80789-x.
A bio -renewable polyisoprene obtained from Hevea Brasiliensis was used to produce functionalised carbon composite foam as an adsorbent for heavy metal ions. Functionalised carbon materials (C-SOH, C-COOH, or C-NH) derived from coconut shell waste were prepared via a hydrothermal treatment. Scanning electron microscopy images showed that the functionalised carbon particles had spherical shapes with rough surfaces. X-ray photoelectron spectroscopy confirmed that the functional groups were successfully functionalised over the carbon surface. The foaming process allowed for the addition of carbon (up to seven parts per hundred of rubber) to the high ammonia natural rubber latex. The composite foams had open pore structures with good dispersion of the functionalised carbon. The foam performance on copper ion adsorption has been investigated with regard to their functional group and adsorption conditions. The carbon foams achieved maximum Cu(II) adsorption at 56.5 [Formula: see text] for C-SOH, 55.7 [Formula: see text] for C-COOH, and 41.9 [Formula: see text] for C-NH, and the adsorption behaviour followed a pseudo-second order kinetics model.
从巴西橡胶树中提取的生物可再生聚异戊二烯被用于生产功能化碳复合材料泡沫，用作重金属离子的吸附剂。通过水热处理，从椰子壳废料中制备了功能化碳材料（C-SOH、C-COOH 或 C-NH）。扫描电子显微镜图像显示，功能化碳颗粒具有球形形状和粗糙表面。X 射线光电子能谱证实，功能基团已成功地在碳表面上进行了功能化。发泡过程允许将碳（高达橡胶的 7 份/百份）添加到高氨天然橡胶胶乳中。复合材料泡沫具有开放的孔结构，功能化碳的分散性良好。研究了功能基团和吸附条件对铜离子吸附的泡沫性能。C-SOH 的最大 Cu(II)吸附量为 56.5 [Formula: see text]，C-COOH 为 55.7 [Formula: see text]，C-NH 为 41.9 [Formula: see text]，吸附行为符合拟二级动力学模型。
