| 000 | 04754nam a2201225Ia 4500 | ||
|---|---|---|---|
| 000 | 02570ntm a2200193 i 4500 | ||
| 001 | 90749 | ||
| 003 | 0 | ||
| 005 | 20250920173734.0 | ||
| 008 | 240722n 000 0 eng d | ||
| 010 |
_z _z _o _a _b |
||
| 015 |
_22 _a |
||
| 016 |
_2 _2 _a _z |
||
| 020 |
_e _e _a _b _z _c _q _x |
||
| 022 |
_y _y _l _a2 |
||
| 024 |
_2 _2 _d _c _a _q |
||
| 028 |
_a _a _b |
||
| 029 |
_a _a _b |
||
| 032 |
_a _a _b |
||
| 035 |
_a _a _b _z _c _q |
||
| 037 |
_n _n _c _a _b |
||
| 040 |
_e _erda _a _d _b _c |
||
| 041 |
_e _e _a _b _g _h _r |
||
| 043 |
_a _a _b |
||
| 045 |
_b _b _a |
||
| 050 |
_a _a _d _b2 _c0 |
||
| 051 |
_c _c _a _b |
||
| 055 |
_a _a _b |
||
| 060 |
_a _a _b |
||
| 070 |
_a _a _b |
||
| 072 |
_2 _2 _d _a _x |
||
| 082 |
_a _a _d _b2 _c |
||
| 084 |
_2 _2 _a |
||
| 086 |
_2 _2 _a |
||
| 090 |
_a _a _m _b _q |
||
| 092 |
_f _f _a _b |
||
| 096 |
_a _a _b |
||
| 097 |
_a _a _b |
||
| 100 |
_e _e _aAurick Julius V. Wilson, Sophia Maria C. Caparros, Vince Edrick A. De Guzman, Xianne R. Fudalan, Fatima Keith B. Ramos. _d _b4 _u _c0 _q16 |
||
| 110 |
_e _e _a _d _b _n _c _k |
||
| 111 |
_a _a _d _b _n _c |
||
| 130 |
_s _s _a _p _f _l _k |
||
| 210 |
_a _a _b |
||
| 222 |
_a _a _b |
||
| 240 |
_s _s _a _m _g _n _f _l _o _p _k |
||
| 245 | 0 |
_a _aAdsorption of selected azo dyes from aqueous solution onto activated carbon derived from cocoa (theobroma cacao) pod husks. _d _b _n _c _h6 _p |
|
| 246 |
_a _a _b _n _i _f6 _p |
||
| 249 |
_i _i _a |
||
| 250 |
_6 _6 _a _b |
||
| 260 |
_e _e _a _b _f _c _g |
||
| 264 |
_3 _3 _a _d _b _c4544446 |
||
| 300 |
_e _e _c _a _b |
||
| 310 |
_a _a _b |
||
| 321 |
_a _a _b |
||
| 336 |
_b _atext _2rdacontent |
||
| 337 |
_3 _30 _b _aunmediated _2rdamedia |
||
| 338 |
_3 _30 _b _avolume _2rdacarrier |
||
| 340 |
_2 _20 _g _n |
||
| 344 |
_2 _2 _a0 _b |
||
| 347 |
_2 _2 _a0 |
||
| 362 |
_a _a _b |
||
| 385 |
_m _m _a2 |
||
| 410 |
_t _t _b _a _v |
||
| 440 |
_p _p _a _x _v |
||
| 490 |
_a _a _x _v |
||
| 500 |
_a _aUndergraduate Thesis:(Bachelor of Science in Chemistry) - Pamantasan ng Lungsod ng Maynila, 2024. _d _b _c56 |
||
| 504 |
_a _a _x |
||
| 505 |
_a _a _b _t _g _r |
||
| 506 |
_a _a5 |
||
| 510 |
_a _a _x |
||
| 520 |
_b _b _c _aABSTRACT: In this study, activated carbon was prepared from cocoa pod husks via ferric chloride activation for the removal of selected azo dyes. The activation process resulted in a percent yield of 46.84%. The pore volume and surface area of the cocoa pod husk activated carbon (CPHAC) were estimated using methylene blue number (MBN) and iodine number (IN), yielding a result of 171.7 mg g-1 and 577.7 mg g-1, respectively. The surface characteristics of CPHAC were investigated using scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). Results revealed that CPHAC has a heterogeneous surface with oxygen-containing functional groups. Batch adsorption studies were conducted for the removal of methyl orange (MO), methyl red (MR), Congo red (CR), Eriochrome Black T (EBT), and hydroxynaphthol blue (HNB). The adsorption equilibrium data were fitted to the linear forms of the Langmuir, Freundlich, Dubinin-Radushkevich, and Temkin models. Based on the fin dings of the equilibrium studies, the Freundlich isotherm is the best-fit model for the adsorption of CR and HNB whereas the Temkin, Dubinin-Radushkevich, and Langmuir models are the best for for the adsorption of MO, MR, and EBT, respectively. The kinetics of the adsorption of azo dyes onto CPHAC was also studied. The adsorption kinetic data were fitted to the linear forms of the pseudo-first-order, pseudo-second-order, intraparticle diffusion, and Elovich model. Results from kinetic studies showed that the pseudo-second-order model best describes the adsorption of MR, CR, and EBT onto CPHAC. For the adsorption of MO and HNB, the intraparticle diffusion model best describes the kinetic data. _u |
||
| 521 |
_a _a _b |
||
| 533 |
_e _e _a _d _b _n _c |
||
| 540 |
_c _c _a5 |
||
| 542 |
_g _g _f |
||
| 546 |
_a _a _b |
||
| 583 |
_5 _5 _k _c _a _b |
||
| 590 |
_a _a _b |
||
| 600 |
_b _b _v _t _c2 _q _a _x0 _z _d _y |
||
| 610 |
_b _b _v _t2 _x _a _k0 _p _z _d6 _y |
||
| 611 |
_a _a _d _n2 _c0 _v |
||
| 630 |
_x _x _a _d _p20 _v |
||
| 648 |
_2 _2 _a |
||
| 650 |
_x _x _a _d _b _z _y20 _v |
||
| 651 |
_x _x _a _y20 _v _z |
||
| 655 |
_0 _0 _a _y2 _z |
||
| 700 |
_i _i _t _c _b _s1 _q _f _k40 _p _d _e _a _l _n6 |
||
| 710 |
_b _b _t _c _e _f _k40 _p _d5 _l _n6 _a |
||
| 711 |
_a _a _d _b _n _t _c |
||
| 730 |
_s _s _a _d _n _p _f _l _k |
||
| 740 |
_e _e _a _d _b _n _c6 |
||
| 753 |
_c _c _a |
||
| 767 |
_t _t _w |
||
| 770 |
_t _t _w _x |
||
| 773 |
_a _a _d _g _m _t _b _v _i _p |
||
| 775 |
_t _t _w _x |
||
| 776 |
_s _s _a _d _b _z _i _t _x _h _c _w |
||
| 780 |
_x _x _a _g _t _w |
||
| 785 |
_t _t _w _a _x |
||
| 787 |
_x _x _d _g _i _t _w |
||
| 800 |
_a _a _d _l _f _t0 _q _v |
||
| 810 |
_a _a _b _f _t _q _v |
||
| 830 |
_x _x _a _p _n _l0 _v |
||
| 942 |
_a _alcc _cBK |
||
| 999 |
_c25485 _d25485 |
||