Synthesis and characterization of antibacterial paper with nanostructured zinc oxide particles prepared through microwave irradiation technique

Date

6-2016

Degree

Bachelor of Science in Chemical Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Ronniel D. Manalo

Restrictions

Restricted: Not available to the general public. Access is available only after consultation with author/thesis adviser and only to those bound by the confidentiality agreement.

Abstract

Nanoconstructed zinc oxide (ZnO) particles were grown on paper substrate made from Abaca hybrid 7 pulp. Microwave radiation technique was used at power levels of 180 and 540 W and exposure times 5,10, 20 and 25 minutes. Chemical transformations were observed using Fourier Transform Infrared (FTIR Spectoscropy. The effects of the power levels and exposure times on the morphology of the nanostructures were determined using optical and scanning electron microscopy, Parallel Streak Method was used to evaluate the antibacterial activity of the samples against Eschericia coli. FTIR spectra proved the embedment of ZnO on the paper substrate. Power levels and exposure times affected the distribution, particle size and structure of the ZnO nano particles. Higher power level and longer exposure resulted to the formation of more ZnO with larger particles. Grain-like and flower-like ZnO nanostructures were formed at lower and higher levels, respectively. Samples prepared at 180W for 25 minutes, 540W for 10 minutes, 540 W for 20 minutes showed complete inhibition of E. coli under dark condition. The antibacterial activity of the samples was correlated to the morphology of the ZnO nanostructures. Based on this study, antibacterial paper with ZnO can be produced more effectively with microwave irradiation at 540 W for 10 minutes.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993.5 2016 E62 S23

Document Type

Thesis

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