Surface and bulk measurements of metals deposited on activated carbon

被引:74
作者
Park, SH
McClain, S
Tian, ZR
Suib, SL
Karwacki, C
机构
[1] UNIV CONNECTICUT,INST MAT SCI,DEPT CHEM,STORRS,CT 06269
[2] UNIV CONNECTICUT,DEPT CHEM ENGN,STORRS,CT 06269
[3] USA,RTE,SCERD,ERDEC,ABERDEEN PROVING GROUND,MD 21010
关键词
D O I
10.1021/cm9602712
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Diffuse reflectance Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, scanning Auger microscopy, elemental analyses, BET surface area, and thermogravimetric analyses have been used to study metals and adsorbed organics on the surface of metal-loaded activated carbon materials. Metals such as copper, zinc, and molybdenum have been deposited on activated carbon via incipient wetness methods. Studies of ground and unground samples show that the organic functional groups such as OH, CH2, CH3, C=O, C-O, C-O-C, and CH are exclusively found on the exterior of the metal loaded samples and not in the bulk. Surface studies show that Cu and Zn deposits are on the surface whereas Mo is deposited throughout the bulk of the Mo-loaded activated carbon systems. Surface data for the Cu system suggest the presence of CuCO3 and Cu(OH)P. The Zn species appears to be Zn2+ on the basis of XPS and SAM data. Mo appears to be oxidized, but a specific oxidation state and the oxidic species are not yet able to be determined.
引用
收藏
页码:176 / 183
页数:8
相关论文
共 47 条
[1]   HIGH-RESOLUTION MONOCHROMATED XPS OF POLY(METHYL METHACRYLATE) THIN-FILMS ON A CONDUCTING SUBSTRATE [J].
BEAMSON, G ;
BUNN, A ;
BRIGGS, D .
SURFACE AND INTERFACE ANALYSIS, 1991, 17 (02) :105-115
[2]   CHEMISORPTION OF OXYGEN ON CELLULOSE CHAR [J].
BRADBURY, AGW ;
SHAFIZADEH, F .
CARBON, 1980, 18 (02) :109-116
[3]   AN INVESTIGATION OF CARBON-FIBER SURFACE-CHEMISTRY AND REACTIVITY BASED ON XPS AND SURFACE FREE-ENERGY [J].
BRADLEY, RH ;
LING, X ;
SUTHERLAND, I .
CARBON, 1993, 31 (07) :1115-1120
[4]   AN XPS STUDY OF ION-INDUCED COMPOSITIONAL CHANGES WITH GROUP-II AND GROUP-IV COMPOUNDS [J].
CHRISTIE, AB ;
LEE, J ;
SUTHERLAND, I ;
WALLS, JM .
APPLIED SURFACE SCIENCE, 1983, 15 (1-4) :224-237
[5]   X-RAY PHOTOELECTRON-SPECTROSCOPY ANALYSIS OF COPPER AND ZINC-OXIDES AND SULFIDES [J].
DEROUBAIX, G ;
MARCUS, P .
SURFACE AND INTERFACE ANALYSIS, 1992, 18 (01) :39-46
[6]   XPS INVESTIGATION OF ULTRA-HIGH-VACUUM STORAGE EFFECTS ON CARBON-FIBER SURFACES [J].
DESIMONI, E ;
CASELLA, GI ;
SALVI, AM ;
CATALDI, TRI ;
MORONE, A .
CARBON, 1992, 30 (04) :527-531
[7]   XPS XAES STUDY OF CARBON-FIBERS DURING THERMAL ANNEALING UNDER UHV CONDITIONS [J].
DESIMONI, E ;
CASELLA, GI ;
SALVI, AM .
CARBON, 1992, 30 (04) :521-526
[8]   XPS DETERMINATION OF OXYGEN-CONTAINING FUNCTIONAL-GROUPS ON CARBON-FIBER SURFACES AND THE CLEANING OF THESE SURFACES [J].
DESIMONI, E ;
CASELLA, GI ;
MORONE, A ;
SALVI, AM .
SURFACE AND INTERFACE ANALYSIS, 1990, 15 (10) :627-634
[9]   A DRIFTS STUDY OF THE FORMATION OF SURFACE GROUPS ON CARBON BY OXIDATION [J].
FANNING, PE ;
VANNICE, MA .
CARBON, 1993, 31 (05) :721-730
[10]   SPECTRAL CHARACTERIZATION OF ACTIVATED CARBON [J].
FRIEDEL, RA ;
HOFER, LJE .
JOURNAL OF PHYSICAL CHEMISTRY, 1970, 74 (15) :2921-&