MARC details
| 000 -LEADER |
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| fixed length control field |
03444nam a22003017a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20250714100359.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
250714b |||||||| |||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
TUPM |
| Language of cataloging |
English |
| Transcribing agency |
TUPM |
| Modifying agency |
TUPM |
| Description conventions |
rda |
| 050 ## - LIBRARY OF CONGRESS CALL NUMBER |
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| Classification number |
BTH RB 37 |
| Item number |
A73 2025 |
| 100 ## - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Aragon, Joraine B. |
| Relator term |
author |
| 245 ## - TITLE STATEMENT |
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| Title |
Photocatalytic degradation of nonylphenol using nitrogen-doped carbon-based nanoparticles from calamansi peel waste/ |
| Statement of responsibility, etc. |
Joraine B. Aragon, Ederwisa D. Cadigal, and Pia Monica M. Punzal.-- |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. |
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| Place of publication, distribution, etc. |
Manila: |
| Name of publisher, distributor, etc. |
Technological University of the Philippines, |
| Date of publication, distribution, etc. |
2025. |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
viii, 86pages: |
| Dimensions |
29cm. |
| 336 ## - CONTENT TYPE |
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| Source |
rdacontent |
| 337 ## - MEDIA TYPE |
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| Source |
rdamedia |
| 338 ## - CARRIER TYPE |
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| Source |
rdacarrier |
| 500 ## - GENERAL NOTE |
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| General note |
Bachelor's thesis<br/> |
| 502 ## - DISSERTATION NOTE |
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| Dissertation note |
College Of Science.--<br/> |
| Degree type |
Bachelor of applied science in laboratory technology: |
| Name of granting institution |
Technological University of the Philippines,<br/> |
| Year degree granted |
2025. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
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| Bibliography, etc. note |
Includes bibliographic references and index. |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
Water pollution caused by nonylphenol, an endocrine-disrupting compound, poses<br/>a serious environmental concern in several rivers in Metro Manila. This study evaluates<br/>the photocatalytic degradation of nonylphenol using nitrogen-doped carbon-based<br/><br/>nanoparticles (NC-BNPs) from calamansi peel waste synthesized through the calcination-<br/>to-reflux method. Various analytical instruments were used for the characterization of the<br/><br/>synthesized C-BNPs and NC-BNPs, such as a UV-Vis Spectrophotometer, a Fourier<br/>Transform Infrared Spectrometer, a Scanning Electron Microscope and Energy Dispersive<br/>X-ray Spectrometer, and a Spectrofluorophotometer. Results obtained from UV-Vis<br/>analysis revealed that NC-BNPs possess enhanced optical properties compared to C-BNPs.<br/>These findings were further validated by spectrofluorophotometer results, which displayed<br/>broader emission peaks and higher fluorescence intensity for NC-BNPs. The successful<br/>incorporation of nitrogen into the C-BNP matrix was confirmed through FTIR analysis,<br/>where the presence of a peak at 3297 cm-1—attributed to a primary amide—indicated<br/><br/>nitrogen doping. SEM mapping and EDX Spectroscopy further verified the nitrogen-<br/>doping as NC-BNPs contained nitrogen with 50.87% weight. Moreover, the morphology<br/><br/>and particle size distribution of the NC-BNPs were analyzed using SEM and ImageJ<br/>version 1 software. The nanoparticles were of irregular shapes with non-uniform<br/>morphology and had an approximate mean size of 15.3 nm with a standard deviation of<br/>3.591, which indicated that there was a wider size distribution range of an integration of<br/>small and large particles compared to the average size. Photocatalytic performance was<br/>assessed under sunlight exposure, comparing control, C-BNPs, and NC-BNPs setups.<br/>Results showed that nonylphenol with NC-BNPs achieved a significantly higher<br/>degradation efficiency of 37.13% compared to 14.05% for C-BNPs. Optimization of<br/>photocatalytic conditions revealed that pH 6, an initial nonylphenol concentration of 100<br/>ppm, and 3 mL of NC-BNPs yielded the highest degradation rates. The study demonstrates<br/>that NC-BNPs derived from agricultural waste present a sustainable and effective solution<br/>for degrading harmful organic pollutants in water systems. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Calcination |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Reflux synthesis |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Nitrogen doping |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Cadigal, Ederwisa D. |
| Relator term |
author |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Punzal, Pia Monica M. |
| Relator term |
author |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Library of Congress Classification |
| Koha item type |
Bachelor's Thesis COS |
| Suppress in OPAC |
No |