TY - JOUR
T1 - Value-adding to dragon fruit (Hylocereus polyrhizus) peel biowaste
T2 - green synthesis of ZnO nanoparticles and their characterization
AU - Aminuzzaman, Mohammod
AU - Ng, Pei Sian
AU - Goh, Wee Sheng
AU - Ogawa, Sayaka
AU - Watanabe, Akira
PY - 2019/11/2
Y1 - 2019/11/2
N2 - This work reports a green and environmentally benign method for synthesizing zinc oxide nanoparticles (ZnO NPs) using aqueous extract of dragon fruit (Hylocereus polyrhizus) peel biowaste as reducing and stabilizing agent. To understand the structural phase purity, morphology and size, green-synthesized ZnO NPs were characterized through various analytic techniques like XRD, FTIR, FESEM, TEM, EDX, XPS, UV–Vis, and Raman spectroscopy. The detailed characterizations confirmed that green-synthesized ZnO NPs are pure having spherical shape with an average size of 56 nm, well-crystalline, and possessing wurtzite hexagonal phase. The photocatalytic activity of the ZnO NPs has been investigated by carrying out the degradation of methylene blue (MB) dye as a model pollutant under direct sunlight illumination in open atmosphere and the photodegradation process was monitored by UV–Vis spectroscopy and liquid chromatography-mass spectrophotometry (LC-MS) technique. Owing to nano-size and high purity, the green-synthesized ZnO NPs showed an excellent photocatalytic performance.
AB - This work reports a green and environmentally benign method for synthesizing zinc oxide nanoparticles (ZnO NPs) using aqueous extract of dragon fruit (Hylocereus polyrhizus) peel biowaste as reducing and stabilizing agent. To understand the structural phase purity, morphology and size, green-synthesized ZnO NPs were characterized through various analytic techniques like XRD, FTIR, FESEM, TEM, EDX, XPS, UV–Vis, and Raman spectroscopy. The detailed characterizations confirmed that green-synthesized ZnO NPs are pure having spherical shape with an average size of 56 nm, well-crystalline, and possessing wurtzite hexagonal phase. The photocatalytic activity of the ZnO NPs has been investigated by carrying out the degradation of methylene blue (MB) dye as a model pollutant under direct sunlight illumination in open atmosphere and the photodegradation process was monitored by UV–Vis spectroscopy and liquid chromatography-mass spectrophotometry (LC-MS) technique. Owing to nano-size and high purity, the green-synthesized ZnO NPs showed an excellent photocatalytic performance.
KW - biowaste
KW - Green synthesis
KW - photocatalyst
KW - photodegradation
KW - ZnO nanoparticles
UR - http://www.scopus.com/inward/record.url?scp=85074197233&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85074197233&partnerID=8YFLogxK
U2 - 10.1080/24701556.2019.1661464
DO - 10.1080/24701556.2019.1661464
M3 - Article
AN - SCOPUS:85074197233
VL - 49
SP - 401
EP - 411
JO - Inorganic and Nano-Metal Chemistry
JF - Inorganic and Nano-Metal Chemistry
SN - 2470-1556
IS - 11
ER -