期刊
APPLIED WATER SCIENCE
卷 7, 期 7, 页码 3561-3571出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s13201-016-0494-0
关键词
Activation; Adsorbent; Bean husk; Coconut husk; Kola nut pod
资金
- World Academy of Science (TWAS) [11-249 RG/CHE/AF/AC_1_ UNESCO FR: 3240262674 (2012), 15-181 RG/CHE/AF/AC_1_: 3240287083 (2015)]
Preparation and characterization of raw and activated carbon derived from three different selected agricultural wastes: kola nut pod raw and activated (KNPR and KNPA), bean husk raw and activated (BHR and BHA) and coconut husk raw and activated (CHR and CHA) were investigated, respectively. Influences of carbonization and acid activation on the activated carbon were investigated using SEM, FTIR, EDX, pH(pzc) and Boehm titration techniques, respectively. Carbonization was done at 350 A degrees C for 2 h followed by activation with 0.3 M H3PO4 (ortho-phosphoric acid). Results obtained from SEM, FTIR, and EDX revealed that, carbonization followed by acid activation had a significant influence on morphology and elemental composition of the samples. SEM showed well-developed pores on the surface of the precursors after acid treatment, FTIR spectra revealed reduction, broadening, disappearance or appearance of new peaks after acid activation. EDX results showed highest percentage of carbon by atom respectively in the order BHA > KNPA > CHA respectively. The pH(pzc) was found to be 5.32, 4.57 and 3.69 for KNPA, BHA and CHA, respectively. Boehm titration result compliments that of pH(pzc), indicating that the surfaces of the prepared adsorbents are predominantly acidic. This study promotes a sustainable innovative use of agro-wastes in the production of cheap and readily available activated carbons, thereby ensuring more affordable water and effluent treatment adsorbents.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据